From ae1c9a46ad00368c8078748938c3149d8055ae79 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 09:03:02 +0800
Subject: [PATCH 01/65] =?UTF-8?q?=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 50 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 65b4fbb..5d9d8d6 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,51 @@
-# text4
+# 实现学生成绩管理系统
+
+2023年4月17日
+
+董函铄 胡煜男 于博 袁楷昊
+
+## 项目简介
+
+本系统是程序设计与问题求解课程设计项目，是为教师提供管理班级成绩的工具，该系统可以实现的对学生的成绩进行增、删、改、查、信息保存和信息导入等基本功能，以及对学生成绩排序和分段的扩展功能，有利于对学生成绩管理。项目采用 C 语言编程实现，在 VS Code 集成开发环境（IDE）中用 GCC 进行编译。系统采用模块化设计，程序结构清晰，采用菜单驱动的命令行界面，操作便捷，能够用 CSV 格式读取和保存数据，通用性强，能够用图表展示数据，直观清楚。
+
+下载地址：https://code.educoder.net/plebkff6w/text4
+
+项目开发过程中采用 Kanban（看板）进行任务管理和分工协作，并使用 Git 对程序代码和文档进行版
+本管理。任务分工情况如下：
+
+|  任务                       |   设计   |  开发    |   测试  |  文档  |
+|---|---|---|---|---|
+|  C1-C3  菜单驱动的用户界面   |  董函铄  |  董函铄  |  胡煜男 |   董函铄  |
+|  C4 添加学生信息及成绩            |   胡煜男  |  胡煜男  | 于博  |  胡煜男  |
+|  C5: 查询学生信息及成绩           |   于博 |  于博  | 袁楷昊  |  于博  |
+|  C6: 打印学生信息及成绩           |   袁楷昊   |  袁楷昊   | 董函铄    |  袁楷昊   |
+|  C7: 修改学生信息及成绩           |  董函铄   |  董函铄  | 于博  |  董函铄  |
+|  C8: 删除学生信息及成绩          |  胡煜男   |  胡煜男  | 袁楷昊  |  胡煜男|
+|  C9: 学生信息及成绩记录排序           |  于博   |  于博  | 董函铄  |  于博 |
+|  C10: 从文件中读取学生信息及成绩记录   |  袁楷昊    |  袁楷昊    | 胡煜男   |   袁楷昊 |
+|  C11: 将学生信息及成绩保存保存到文件   |  董函铄  |  于博  | 胡煜男  |   董函铄 |
+|  C12: 以图表方式显示学生信息及成绩 |  董函铄  |  袁楷昊  | 于博  |   胡煜男 |
+  
+每个成员的工作量（百分比）：
+
+|  董函铄  |  胡煜男  |  于博  | 袁楷昊  |
+|---|---|---|---|
+|    30    |   20    |    30    |   20    |
+  
+## 关于实现学生成绩管理系统
+
+设计一个学生成绩管理系统，要求采用命令行菜单界面进行交互，具备读取、保存、打印、查询、修改、插入、删除和排序等基本功能，能够以表格和图表形式展示数据，采用 CSV 格式保存数据。
+
+系统的功能性需求：
+
+- 数据的读取、保存、打印、查询、修改、插入、删除、排序和图表展示。
+
+系统的非功能性需求：
+
+- 菜单驱动的命令行交互界面。
+
+## 需求分析
+
+分析系统的功能需求和界面需求，编制用户手册如下。
+
 

From 7fa53b3a4c730762e7371ea8304d4ee1f68e964b Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 09:04:27 +0800
Subject: [PATCH 02/65] C1-C3

---
 README.md | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5d9d8d6..21d10f4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # 实现学生成绩管理系统
 
-2023年4月17日
+2023年5月21日
 
 董函铄 胡煜男 于博 袁楷昊
 
@@ -48,4 +48,35 @@
 
 分析系统的功能需求和界面需求，编制用户手册如下。
 
+#### C1:启动程序
+
+命令行中执行命令 ./app , 系统启动，显示提示信息，然后显示功能菜单，等待用户输入命令。
+
+```
+学生成绩管理系统启动  
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加 
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出 
+
+请选择：
+```
+
+#### C2：显示命令菜单
+
+```
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：
+```
+
+#### C3: 退出程序
+
+选择菜单命令 `0`，再输入 `y` 确认，则退出程序。
+
+```
+请选择：0
+确定要退出吗？(Y/N): y
+程序退出
+```
 

From 6d81acf0fc34e7e45247ea66db05c9cf0a71c642 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 09:11:44 +0800
Subject: [PATCH 03/65] c4

---
 README.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/README.md b/README.md
index 21d10f4..d42856c 100644
--- a/README.md
+++ b/README.md
@@ -80,3 +80,21 @@
 程序退出
 ```
 
+#### C4: 添加库存记录
+
+选择菜单命令 `5`，提示输入学号，若该学生不存在，则继续输入学号、姓名、成绩，添加学号，并提示完成；若学号已存在，则提示学号已存在，并结束。
+
+```
+请选择：5
+输入学号：101
+输入姓名：小米
+输入成绩：80
+学生 101 已添加
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：5
+输入学号：101
+学号已存在.
+```
\ No newline at end of file

From 43719154292b2b7e660a9a809e4c5f2fdc97b80f Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 09:17:04 +0800
Subject: [PATCH 04/65] src

---
 src | 357 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 357 insertions(+)
 create mode 100644 src

diff --git a/src b/src
new file mode 100644
index 0000000..3f5f843
--- /dev/null
+++ b/src
@@ -0,0 +1,357 @@
+#define NAME_LEN 31
+#define MAX_PARTS 100
+//保存学生成绩信息的结构
+struct students
+{
+    int number;
+    char name[NAME_LEN + 1];
+    int score;
+};
+static struct students stu[MAX_PARTS];
+static int num_parts = 0;
+#include <stdio.h>
+#include <stdlib.h>
+
+//定义常量
+#define CMD_QUIT 0
+#define CMD_QUERY 4
+#define CMD_INSERT 5
+#define CMD_UPDATE 6
+#define CMD_DELETE 7
+#define CMD_READ 1
+#define CMD_SAVE 2
+#define CMD_PRINT 3
+#define CMD_SORT 8
+#define CMD_CHART 9
+// 菜单命令的编号
+
+// 函数声明
+void init(void);
+void quit(void);
+void display_menu(void);
+int make_choice(void);
+void read_data(void);   // 读取
+void save_data(void);   // 保存
+void print_data(void);  // 打印
+void query_data(void);  // 查询
+void add_data(void);    // 添加
+void update_data(void); // 修改
+void delete_data(void); // 删除
+void sort_data(void);   // 排序
+void make_chart(void);  // 图表
+int confirm(const char *msg);
+
+// 主程序
+int main(void)
+{
+    init(); // 程序启动
+    while (1)
+    {
+        display_menu();
+        int c = make_choice();
+        switch (c)
+        {
+        case CMD_QUERY:
+            query_data();
+            break;
+        case CMD_INSERT:
+            add_data();
+            break;
+        case CMD_UPDATE:
+            update_data();
+            break;
+        case CMD_DELETE:
+            delete_data();
+            break;
+        case CMD_READ:
+            read_data();
+            break;
+        case CMD_SAVE:
+            save_data();
+            break;
+        case CMD_PRINT:
+            print_data();
+            break;
+        case CMD_SORT:
+            sort_data();
+            break;
+        case CMD_CHART:
+            make_chart();
+            break;
+        default:
+            puts("命令错误，请重新选择");
+            break;
+        case CMD_QUIT:
+            if (confirm("确定要退出吗？"))
+                quit(); // 仅在确认后退出
+            break;
+        }
+    }
+    return 0;
+}
+
+// 函数定义
+void init(void)
+{
+    puts("程序启动");
+}
+void quit(void)
+{
+    puts("程序退出");
+    exit(EXIT_SUCCESS);
+}
+void display_menu(void)
+{
+    printf("\n%d 读取 | %d 保存 | %d 打印 | %d 查询 | %d 添加\n%d 修改 | %d 删除 | %d 排序 | %d 图表 | %d 退出\n\n", CMD_READ, CMD_SAVE, CMD_PRINT, CMD_QUERY, CMD_INSERT, CMD_UPDATE, CMD_DELETE, CMD_SORT, CMD_CHART, CMD_QUIT);
+}
+int make_choice(void)
+{
+    int c;     // 用户输入
+    int n = 0; // 正确读入的数据项个数
+    while (n == 0)
+    {
+        printf("请选择：");
+        n = scanf("%d", &c); // 尝试读入整数 c
+        scanf("%*[^\n]");    // 跳过一行中剩余的字符
+    }
+    return c;
+}
+
+//查询
+void query_data(void)
+{
+    int num;
+    printf("输入学生学号： ");
+    scanf("%d", &num);
+    int f = -1;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = i;
+            break;
+        }
+    }
+    if (f == -1)
+    {
+        printf("学生不存在");
+    }
+    else
+    {
+        printf("学生学号：%d\n", stu[f].number);
+        printf("学生姓名：%s\n", stu[f].name);
+        printf("学生成绩：%d\n", stu[f].score);
+    }
+}
+
+//打印
+void print_data(void)
+{
+    printf("NUMBER  |  NAME                score\n");
+    for (int i = 0; i < num_parts; i++)
+    {
+        printf("%d  |  %s                    %d\n", stu[i].number, stu[i].name, stu[i].score);
+    }
+}
+
+//添加
+void add_data(void)
+{
+    int num;
+    printf("输入学生学号：");
+    scanf("%d", &num);
+    int f = 0;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = 1;
+            break;
+        }
+    }
+    if (f == 0)
+    {
+        stu[num_parts].number = num;
+        printf("输入学生姓名：");
+        scanf("%s", &stu[num_parts].name);
+        printf("输入学生成绩：");
+        scanf("%d", &stu[num_parts].score);
+        num_parts++;
+        printf("学生 %d 添加成功\n", num);
+    }
+    else
+    {
+        printf("学生已存在");
+    }
+}
+
+//修改
+void update_data(void)
+{
+    int num;
+    printf("输入学生学号：");
+    scanf("%d", &num);
+    int f = 0;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = 1;
+            break;
+        }
+    }
+    if (f == 0)
+    {
+        printf("学生不存在");
+    }
+    else
+    {
+        printf("输入学生学号：");
+        scanf("%d", &stu[num].number);
+        printf("输入学生姓名：");
+        scanf("%s", stu[num].name);
+        printf("输入学生成绩：");
+        scanf("%d", &stu[num].score);
+        printf("学生 %d 已更新", num);
+    }
+}
+
+//删除
+void delete_data(void)
+{
+    int num;
+    printf("输入学生学号：");
+    scanf("%d", &num);
+    int f = 0, i, j;
+    for (i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = 1;
+            break;
+        }
+    }
+    if (f == 0)
+    {
+        printf("学生不存在");
+    }
+    else
+    {
+        for (j = i; j < num_parts - 1; j++)
+        {
+            stu[j] = stu[j + 1];
+        }
+        num_parts--;
+        printf("删除成功");
+    }
+}
+
+//读取
+void read_data(void)
+{
+    puts("读取数据");
+    printf("请输入文件名");
+    char filename[256];
+    scanf("%s", filename);
+
+    FILE *fp = fopen(filename, "r");
+    if (fp == NULL)
+    {
+        perror(filename);
+        return;
+    }
+    int i = 0;
+    while (fscanf(fp, "%d,%[^,],%d", &stu[i].number, stu[i].name, &stu[i].score) == 3)
+    {
+        i++;
+    }
+    fclose(fp);
+    num_parts = i;
+    printf("读取 %d 记录\n", num_parts);
+}
+
+//保存
+void save_data(void)
+{
+    puts("保存数据");
+    printf(" 请输入文件名");
+    char filename[256];
+    scanf("%s", filename);
+    FILE *fp = fopen(filename, "r");
+    if (fp == NULL)
+    {
+        perror(filename);
+        return;
+    }
+    for (int i = 0; i < num_parts; i++)
+    {
+        fprintf(fp, "%d,%s,%d\n", stu[i].number, stu[i].name, stu[i].score);
+    }
+    fclose(fp);
+    printf("保存%d 成功", num_parts);
+}
+
+//排序
+void sort_data(void)
+{
+    printf("排序\n");
+    for (int i = 0; i < num_parts; i++)
+    {
+        int change = 0;
+        static struct students t;
+        for (int j = 0; j < num_parts - i - 1; j++)
+        {
+            if (stu[j].number > stu[j + 1].number)
+            {
+                t = stu[j + 1];
+                stu[j + 1] = stu[j];
+                stu[j] = t;
+                change = 1;
+            }
+        }
+        if (!change)
+            break;
+    }
+    for (int i = 0; i < num_parts; i++)
+    {
+        int change = 0;
+        static struct students t;
+        for (int j = 0; j < num_parts - i - 1; j++)
+        {
+            if (stu[j].score > stu[j + 1].score)
+            {
+                t = stu[j + 1];
+                stu[j + 1] = stu[j];
+                stu[j] = t;
+                change = 1;
+            }
+        }
+        if (!change)
+            break;
+    }
+    printf("排序已完成");
+}
+
+//图表
+void make_chart(void)
+{
+    printf("NUMBER  |  NAME                score\n");
+    for (int i = 0; i < num_parts; i++)
+    {
+        printf("%d  |  %s ", stu[i].number, stu[i].name);
+        for (int j = 0; j < stu[i].score; j++)
+        {
+            printf("*");
+        }
+        printf("\n");
+    }
+    printf("图表\n");
+}
+
+int confirm(const char *msg)
+{
+    char c = 'n';                // 默认选择是 no
+    printf("%s(Y/N): ", msg);    // 提示输入 yes/no 进行确认
+    scanf(" %c%*[^\n]", &c);     // 读取第一个字符，忽略剩余字符
+    return c == 'y' || c == 'Y'; // 返回确认结果
+}

From 8e2ffd371a44c42716fb9fb66c0c408f9c7528b5 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 09:57:57 +0800
Subject: [PATCH 05/65] app.c

---
 app.c | 357 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 357 insertions(+)
 create mode 100644 app.c

diff --git a/app.c b/app.c
new file mode 100644
index 0000000..3f5f843
--- /dev/null
+++ b/app.c
@@ -0,0 +1,357 @@
+#define NAME_LEN 31
+#define MAX_PARTS 100
+//保存学生成绩信息的结构
+struct students
+{
+    int number;
+    char name[NAME_LEN + 1];
+    int score;
+};
+static struct students stu[MAX_PARTS];
+static int num_parts = 0;
+#include <stdio.h>
+#include <stdlib.h>
+
+//定义常量
+#define CMD_QUIT 0
+#define CMD_QUERY 4
+#define CMD_INSERT 5
+#define CMD_UPDATE 6
+#define CMD_DELETE 7
+#define CMD_READ 1
+#define CMD_SAVE 2
+#define CMD_PRINT 3
+#define CMD_SORT 8
+#define CMD_CHART 9
+// 菜单命令的编号
+
+// 函数声明
+void init(void);
+void quit(void);
+void display_menu(void);
+int make_choice(void);
+void read_data(void);   // 读取
+void save_data(void);   // 保存
+void print_data(void);  // 打印
+void query_data(void);  // 查询
+void add_data(void);    // 添加
+void update_data(void); // 修改
+void delete_data(void); // 删除
+void sort_data(void);   // 排序
+void make_chart(void);  // 图表
+int confirm(const char *msg);
+
+// 主程序
+int main(void)
+{
+    init(); // 程序启动
+    while (1)
+    {
+        display_menu();
+        int c = make_choice();
+        switch (c)
+        {
+        case CMD_QUERY:
+            query_data();
+            break;
+        case CMD_INSERT:
+            add_data();
+            break;
+        case CMD_UPDATE:
+            update_data();
+            break;
+        case CMD_DELETE:
+            delete_data();
+            break;
+        case CMD_READ:
+            read_data();
+            break;
+        case CMD_SAVE:
+            save_data();
+            break;
+        case CMD_PRINT:
+            print_data();
+            break;
+        case CMD_SORT:
+            sort_data();
+            break;
+        case CMD_CHART:
+            make_chart();
+            break;
+        default:
+            puts("命令错误，请重新选择");
+            break;
+        case CMD_QUIT:
+            if (confirm("确定要退出吗？"))
+                quit(); // 仅在确认后退出
+            break;
+        }
+    }
+    return 0;
+}
+
+// 函数定义
+void init(void)
+{
+    puts("程序启动");
+}
+void quit(void)
+{
+    puts("程序退出");
+    exit(EXIT_SUCCESS);
+}
+void display_menu(void)
+{
+    printf("\n%d 读取 | %d 保存 | %d 打印 | %d 查询 | %d 添加\n%d 修改 | %d 删除 | %d 排序 | %d 图表 | %d 退出\n\n", CMD_READ, CMD_SAVE, CMD_PRINT, CMD_QUERY, CMD_INSERT, CMD_UPDATE, CMD_DELETE, CMD_SORT, CMD_CHART, CMD_QUIT);
+}
+int make_choice(void)
+{
+    int c;     // 用户输入
+    int n = 0; // 正确读入的数据项个数
+    while (n == 0)
+    {
+        printf("请选择：");
+        n = scanf("%d", &c); // 尝试读入整数 c
+        scanf("%*[^\n]");    // 跳过一行中剩余的字符
+    }
+    return c;
+}
+
+//查询
+void query_data(void)
+{
+    int num;
+    printf("输入学生学号： ");
+    scanf("%d", &num);
+    int f = -1;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = i;
+            break;
+        }
+    }
+    if (f == -1)
+    {
+        printf("学生不存在");
+    }
+    else
+    {
+        printf("学生学号：%d\n", stu[f].number);
+        printf("学生姓名：%s\n", stu[f].name);
+        printf("学生成绩：%d\n", stu[f].score);
+    }
+}
+
+//打印
+void print_data(void)
+{
+    printf("NUMBER  |  NAME                score\n");
+    for (int i = 0; i < num_parts; i++)
+    {
+        printf("%d  |  %s                    %d\n", stu[i].number, stu[i].name, stu[i].score);
+    }
+}
+
+//添加
+void add_data(void)
+{
+    int num;
+    printf("输入学生学号：");
+    scanf("%d", &num);
+    int f = 0;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = 1;
+            break;
+        }
+    }
+    if (f == 0)
+    {
+        stu[num_parts].number = num;
+        printf("输入学生姓名：");
+        scanf("%s", &stu[num_parts].name);
+        printf("输入学生成绩：");
+        scanf("%d", &stu[num_parts].score);
+        num_parts++;
+        printf("学生 %d 添加成功\n", num);
+    }
+    else
+    {
+        printf("学生已存在");
+    }
+}
+
+//修改
+void update_data(void)
+{
+    int num;
+    printf("输入学生学号：");
+    scanf("%d", &num);
+    int f = 0;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = 1;
+            break;
+        }
+    }
+    if (f == 0)
+    {
+        printf("学生不存在");
+    }
+    else
+    {
+        printf("输入学生学号：");
+        scanf("%d", &stu[num].number);
+        printf("输入学生姓名：");
+        scanf("%s", stu[num].name);
+        printf("输入学生成绩：");
+        scanf("%d", &stu[num].score);
+        printf("学生 %d 已更新", num);
+    }
+}
+
+//删除
+void delete_data(void)
+{
+    int num;
+    printf("输入学生学号：");
+    scanf("%d", &num);
+    int f = 0, i, j;
+    for (i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = 1;
+            break;
+        }
+    }
+    if (f == 0)
+    {
+        printf("学生不存在");
+    }
+    else
+    {
+        for (j = i; j < num_parts - 1; j++)
+        {
+            stu[j] = stu[j + 1];
+        }
+        num_parts--;
+        printf("删除成功");
+    }
+}
+
+//读取
+void read_data(void)
+{
+    puts("读取数据");
+    printf("请输入文件名");
+    char filename[256];
+    scanf("%s", filename);
+
+    FILE *fp = fopen(filename, "r");
+    if (fp == NULL)
+    {
+        perror(filename);
+        return;
+    }
+    int i = 0;
+    while (fscanf(fp, "%d,%[^,],%d", &stu[i].number, stu[i].name, &stu[i].score) == 3)
+    {
+        i++;
+    }
+    fclose(fp);
+    num_parts = i;
+    printf("读取 %d 记录\n", num_parts);
+}
+
+//保存
+void save_data(void)
+{
+    puts("保存数据");
+    printf(" 请输入文件名");
+    char filename[256];
+    scanf("%s", filename);
+    FILE *fp = fopen(filename, "r");
+    if (fp == NULL)
+    {
+        perror(filename);
+        return;
+    }
+    for (int i = 0; i < num_parts; i++)
+    {
+        fprintf(fp, "%d,%s,%d\n", stu[i].number, stu[i].name, stu[i].score);
+    }
+    fclose(fp);
+    printf("保存%d 成功", num_parts);
+}
+
+//排序
+void sort_data(void)
+{
+    printf("排序\n");
+    for (int i = 0; i < num_parts; i++)
+    {
+        int change = 0;
+        static struct students t;
+        for (int j = 0; j < num_parts - i - 1; j++)
+        {
+            if (stu[j].number > stu[j + 1].number)
+            {
+                t = stu[j + 1];
+                stu[j + 1] = stu[j];
+                stu[j] = t;
+                change = 1;
+            }
+        }
+        if (!change)
+            break;
+    }
+    for (int i = 0; i < num_parts; i++)
+    {
+        int change = 0;
+        static struct students t;
+        for (int j = 0; j < num_parts - i - 1; j++)
+        {
+            if (stu[j].score > stu[j + 1].score)
+            {
+                t = stu[j + 1];
+                stu[j + 1] = stu[j];
+                stu[j] = t;
+                change = 1;
+            }
+        }
+        if (!change)
+            break;
+    }
+    printf("排序已完成");
+}
+
+//图表
+void make_chart(void)
+{
+    printf("NUMBER  |  NAME                score\n");
+    for (int i = 0; i < num_parts; i++)
+    {
+        printf("%d  |  %s ", stu[i].number, stu[i].name);
+        for (int j = 0; j < stu[i].score; j++)
+        {
+            printf("*");
+        }
+        printf("\n");
+    }
+    printf("图表\n");
+}
+
+int confirm(const char *msg)
+{
+    char c = 'n';                // 默认选择是 no
+    printf("%s(Y/N): ", msg);    // 提示输入 yes/no 进行确认
+    scanf(" %c%*[^\n]", &c);     // 读取第一个字符，忽略剩余字符
+    return c == 'y' || c == 'Y'; // 返回确认结果
+}

From 19a00d2baafb8fa017764fe183451d8efb785b1a Mon Sep 17 00:00:00 2001
From: plebkff6w <1844263540@qq.com>
Date: Sun, 21 May 2023 09:59:01 +0800
Subject: [PATCH 06/65] Delete 'src'

---
 src | 357 ------------------------------------------------------------
 1 file changed, 357 deletions(-)
 delete mode 100644 src

diff --git a/src b/src
deleted file mode 100644
index 3f5f843..0000000
--- a/src
+++ /dev/null
@@ -1,357 +0,0 @@
-#define NAME_LEN 31
-#define MAX_PARTS 100
-//保存学生成绩信息的结构
-struct students
-{
-    int number;
-    char name[NAME_LEN + 1];
-    int score;
-};
-static struct students stu[MAX_PARTS];
-static int num_parts = 0;
-#include <stdio.h>
-#include <stdlib.h>
-
-//定义常量
-#define CMD_QUIT 0
-#define CMD_QUERY 4
-#define CMD_INSERT 5
-#define CMD_UPDATE 6
-#define CMD_DELETE 7
-#define CMD_READ 1
-#define CMD_SAVE 2
-#define CMD_PRINT 3
-#define CMD_SORT 8
-#define CMD_CHART 9
-// 菜单命令的编号
-
-// 函数声明
-void init(void);
-void quit(void);
-void display_menu(void);
-int make_choice(void);
-void read_data(void);   // 读取
-void save_data(void);   // 保存
-void print_data(void);  // 打印
-void query_data(void);  // 查询
-void add_data(void);    // 添加
-void update_data(void); // 修改
-void delete_data(void); // 删除
-void sort_data(void);   // 排序
-void make_chart(void);  // 图表
-int confirm(const char *msg);
-
-// 主程序
-int main(void)
-{
-    init(); // 程序启动
-    while (1)
-    {
-        display_menu();
-        int c = make_choice();
-        switch (c)
-        {
-        case CMD_QUERY:
-            query_data();
-            break;
-        case CMD_INSERT:
-            add_data();
-            break;
-        case CMD_UPDATE:
-            update_data();
-            break;
-        case CMD_DELETE:
-            delete_data();
-            break;
-        case CMD_READ:
-            read_data();
-            break;
-        case CMD_SAVE:
-            save_data();
-            break;
-        case CMD_PRINT:
-            print_data();
-            break;
-        case CMD_SORT:
-            sort_data();
-            break;
-        case CMD_CHART:
-            make_chart();
-            break;
-        default:
-            puts("命令错误，请重新选择");
-            break;
-        case CMD_QUIT:
-            if (confirm("确定要退出吗？"))
-                quit(); // 仅在确认后退出
-            break;
-        }
-    }
-    return 0;
-}
-
-// 函数定义
-void init(void)
-{
-    puts("程序启动");
-}
-void quit(void)
-{
-    puts("程序退出");
-    exit(EXIT_SUCCESS);
-}
-void display_menu(void)
-{
-    printf("\n%d 读取 | %d 保存 | %d 打印 | %d 查询 | %d 添加\n%d 修改 | %d 删除 | %d 排序 | %d 图表 | %d 退出\n\n", CMD_READ, CMD_SAVE, CMD_PRINT, CMD_QUERY, CMD_INSERT, CMD_UPDATE, CMD_DELETE, CMD_SORT, CMD_CHART, CMD_QUIT);
-}
-int make_choice(void)
-{
-    int c;     // 用户输入
-    int n = 0; // 正确读入的数据项个数
-    while (n == 0)
-    {
-        printf("请选择：");
-        n = scanf("%d", &c); // 尝试读入整数 c
-        scanf("%*[^\n]");    // 跳过一行中剩余的字符
-    }
-    return c;
-}
-
-//查询
-void query_data(void)
-{
-    int num;
-    printf("输入学生学号： ");
-    scanf("%d", &num);
-    int f = -1;
-    for (int i = 0; i < num_parts; i++)
-    {
-        if (num == stu[i].number)
-        {
-            f = i;
-            break;
-        }
-    }
-    if (f == -1)
-    {
-        printf("学生不存在");
-    }
-    else
-    {
-        printf("学生学号：%d\n", stu[f].number);
-        printf("学生姓名：%s\n", stu[f].name);
-        printf("学生成绩：%d\n", stu[f].score);
-    }
-}
-
-//打印
-void print_data(void)
-{
-    printf("NUMBER  |  NAME                score\n");
-    for (int i = 0; i < num_parts; i++)
-    {
-        printf("%d  |  %s                    %d\n", stu[i].number, stu[i].name, stu[i].score);
-    }
-}
-
-//添加
-void add_data(void)
-{
-    int num;
-    printf("输入学生学号：");
-    scanf("%d", &num);
-    int f = 0;
-    for (int i = 0; i < num_parts; i++)
-    {
-        if (num == stu[i].number)
-        {
-            f = 1;
-            break;
-        }
-    }
-    if (f == 0)
-    {
-        stu[num_parts].number = num;
-        printf("输入学生姓名：");
-        scanf("%s", &stu[num_parts].name);
-        printf("输入学生成绩：");
-        scanf("%d", &stu[num_parts].score);
-        num_parts++;
-        printf("学生 %d 添加成功\n", num);
-    }
-    else
-    {
-        printf("学生已存在");
-    }
-}
-
-//修改
-void update_data(void)
-{
-    int num;
-    printf("输入学生学号：");
-    scanf("%d", &num);
-    int f = 0;
-    for (int i = 0; i < num_parts; i++)
-    {
-        if (num == stu[i].number)
-        {
-            f = 1;
-            break;
-        }
-    }
-    if (f == 0)
-    {
-        printf("学生不存在");
-    }
-    else
-    {
-        printf("输入学生学号：");
-        scanf("%d", &stu[num].number);
-        printf("输入学生姓名：");
-        scanf("%s", stu[num].name);
-        printf("输入学生成绩：");
-        scanf("%d", &stu[num].score);
-        printf("学生 %d 已更新", num);
-    }
-}
-
-//删除
-void delete_data(void)
-{
-    int num;
-    printf("输入学生学号：");
-    scanf("%d", &num);
-    int f = 0, i, j;
-    for (i = 0; i < num_parts; i++)
-    {
-        if (num == stu[i].number)
-        {
-            f = 1;
-            break;
-        }
-    }
-    if (f == 0)
-    {
-        printf("学生不存在");
-    }
-    else
-    {
-        for (j = i; j < num_parts - 1; j++)
-        {
-            stu[j] = stu[j + 1];
-        }
-        num_parts--;
-        printf("删除成功");
-    }
-}
-
-//读取
-void read_data(void)
-{
-    puts("读取数据");
-    printf("请输入文件名");
-    char filename[256];
-    scanf("%s", filename);
-
-    FILE *fp = fopen(filename, "r");
-    if (fp == NULL)
-    {
-        perror(filename);
-        return;
-    }
-    int i = 0;
-    while (fscanf(fp, "%d,%[^,],%d", &stu[i].number, stu[i].name, &stu[i].score) == 3)
-    {
-        i++;
-    }
-    fclose(fp);
-    num_parts = i;
-    printf("读取 %d 记录\n", num_parts);
-}
-
-//保存
-void save_data(void)
-{
-    puts("保存数据");
-    printf(" 请输入文件名");
-    char filename[256];
-    scanf("%s", filename);
-    FILE *fp = fopen(filename, "r");
-    if (fp == NULL)
-    {
-        perror(filename);
-        return;
-    }
-    for (int i = 0; i < num_parts; i++)
-    {
-        fprintf(fp, "%d,%s,%d\n", stu[i].number, stu[i].name, stu[i].score);
-    }
-    fclose(fp);
-    printf("保存%d 成功", num_parts);
-}
-
-//排序
-void sort_data(void)
-{
-    printf("排序\n");
-    for (int i = 0; i < num_parts; i++)
-    {
-        int change = 0;
-        static struct students t;
-        for (int j = 0; j < num_parts - i - 1; j++)
-        {
-            if (stu[j].number > stu[j + 1].number)
-            {
-                t = stu[j + 1];
-                stu[j + 1] = stu[j];
-                stu[j] = t;
-                change = 1;
-            }
-        }
-        if (!change)
-            break;
-    }
-    for (int i = 0; i < num_parts; i++)
-    {
-        int change = 0;
-        static struct students t;
-        for (int j = 0; j < num_parts - i - 1; j++)
-        {
-            if (stu[j].score > stu[j + 1].score)
-            {
-                t = stu[j + 1];
-                stu[j + 1] = stu[j];
-                stu[j] = t;
-                change = 1;
-            }
-        }
-        if (!change)
-            break;
-    }
-    printf("排序已完成");
-}
-
-//图表
-void make_chart(void)
-{
-    printf("NUMBER  |  NAME                score\n");
-    for (int i = 0; i < num_parts; i++)
-    {
-        printf("%d  |  %s ", stu[i].number, stu[i].name);
-        for (int j = 0; j < stu[i].score; j++)
-        {
-            printf("*");
-        }
-        printf("\n");
-    }
-    printf("图表\n");
-}
-
-int confirm(const char *msg)
-{
-    char c = 'n';                // 默认选择是 no
-    printf("%s(Y/N): ", msg);    // 提示输入 yes/no 进行确认
-    scanf(" %c%*[^\n]", &c);     // 读取第一个字符，忽略剩余字符
-    return c == 'y' || c == 'Y'; // 返回确认结果
-}

From 5ec48b7ac066f48f0278cc2a2bd2aa4d6830bb65 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 10:02:36 +0800
Subject: [PATCH 07/65] yubo

---
 README.md | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index d42856c..3169bfc 100644
--- a/README.md
+++ b/README.md
@@ -97,4 +97,19 @@
 请选择：5
 输入学号：101
 学号已存在.
-```
\ No newline at end of file
+```
+
+#### C5: 查询学生信息及成绩
+
+选择菜单命令 4，提示输入学号，若该学号存在，则输出学号、姓名、成绩；否则提示学生不存在并结束。
+
+请选择：4
+输入学号：101
+学号：101
+名字：小米
+成绩：80
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+请选择：4
+输入学号：101
+学号不存在.
\ No newline at end of file

From 5d96a397b8c6785ab96a2b3698954db914e485d1 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 10:05:18 +0800
Subject: [PATCH 08/65] C5

---
 README.md | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 3169bfc..854e8dd 100644
--- a/README.md
+++ b/README.md
@@ -101,15 +101,20 @@
 
 #### C5: 查询学生信息及成绩
 
-选择菜单命令 4，提示输入学号，若该学号存在，则输出学号、姓名、成绩；否则提示学生不存在并结束。
+选择菜单命令 `4`，提示输入学号，若该学号存在，则输出学号、姓名、成绩；否则提示学生不存在并结束。
 
+```
 请选择：4
 输入学号：101
 学号：101
 名字：小米
 成绩：80
+
 1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
 6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
 请选择：4
 输入学号：101
-学号不存在.
\ No newline at end of file
+学号不存在.
+
+```
\ No newline at end of file

From 8d76a2fbdb100db1488ad42e608d5ac8a139116e Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 10:15:04 +0800
Subject: [PATCH 09/65] chart

---
 chart | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 chart

diff --git a/chart b/chart
new file mode 100644
index 0000000..e69de29

From e7a12fa1fe2fd062ba22ac51b68409a4f3e8a988 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 10:18:16 +0800
Subject: [PATCH 10/65] C6

---
 README.md | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 854e8dd..85b3e5c 100644
--- a/README.md
+++ b/README.md
@@ -117,4 +117,18 @@
 输入学号：101
 学号不存在.
 
-```
\ No newline at end of file
+```
+
+#### C6: 打印学生信息及成绩
+
+选择菜单命令 `3`，打印
+
+```
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    101 | 小李                            |      80 |
+-------------------------------------------------------
+
+```

From c1f7b5b07d79a2cd99a20ffd9377cc86523067b0 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 10:18:26 +0800
Subject: [PATCH 11/65] C9

---
 README.md | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/README.md b/README.md
index 854e8dd..60b2f47 100644
--- a/README.md
+++ b/README.md
@@ -117,4 +117,37 @@
 输入学号：101
 学号不存在.
 
+```
+
+#### C9: 学生信息及成绩排序
+
+选择菜单命令 `8`，对学生按学号从小到大排序。
+
+```
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    101 | 小米                             |      80 |
+|    100 | 小明                             |      70 |
+-------------------------------------------------------
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：8
+排序
+排序已完成
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    100 | 小明                             |      70 |
+|    101 | 小米                             |      80 |
+-------------------------------------------------------
+
 ```
\ No newline at end of file

From 2aa99db0530c2c3da73e4e63ccfa95e475c75f92 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 10:21:19 +0800
Subject: [PATCH 12/65] C9

---
 README.md | 79 -------------------------------------------------------
 1 file changed, 79 deletions(-)

diff --git a/README.md b/README.md
index da00a69..8466b7c 100644
--- a/README.md
+++ b/README.md
@@ -119,82 +119,3 @@
 
 ```
 
-#### C9: 学生信息及成绩排序
-
-选择菜单命令 `8`，对学生按学号从小到大排序。
-
-```
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    101 | 小米                             |      80 |
-|    100 | 小明                             |      70 |
--------------------------------------------------------
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：8
-排序
-排序已完成
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    100 | 小明                             |      70 |
-|    101 | 小米                             |      80 |
--------------------------------------------------------
-
-```
-
-#### C9: 学生信息及成绩排序
-
-选择菜单命令 `8`，对学生按学号从小到大排序。
-
-```
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    101 | 小米                             |      80 |
-|    100 | 小明                             |      70 |
--------------------------------------------------------
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：8
-排序
-排序已完成
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    100 | 小明                             |      70 |
-|    101 | 小米                             |      80 |
--------------------------------------------------------
-
-```
-
-#### C6: 打印学生信息及成绩
-
-选择菜单命令 `3`，打印
-
-```
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    101 | 小李                            |      80 |
--------------------------------------------------------
-
-```

From 1c4a829cb6a61c89f5f2681faa758febf1c56128 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 10:23:12 +0800
Subject: [PATCH 13/65] C6

---
 README.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/README.md b/README.md
index 8466b7c..85b3e5c 100644
--- a/README.md
+++ b/README.md
@@ -119,3 +119,16 @@
 
 ```
 
+#### C6: 打印学生信息及成绩
+
+选择菜单命令 `3`，打印
+
+```
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    101 | 小李                            |      80 |
+-------------------------------------------------------
+
+```

From 3d3c5a0bc1e84664726dfa3b62aa0b5c8b25feb3 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 10:24:43 +0800
Subject: [PATCH 14/65] C9

---
 README.md | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/README.md b/README.md
index 85b3e5c..ff3d144 100644
--- a/README.md
+++ b/README.md
@@ -132,3 +132,36 @@
 -------------------------------------------------------
 
 ```
+
+#### C9: 学生信息及成绩排序
+
+选择菜单命令 `8`，对学生按学号从小到大排序。
+
+```
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    101 | 小米                             |      80 |
+|    100 | 小明                             |      70 |
+-------------------------------------------------------
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：8
+排序
+排序已完成
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    100 | 小明                             |      70 |
+|    101 | 小米                             |      80 |
+-------------------------------------------------------
+
+```
\ No newline at end of file

From 4522d711ee34d01bc5b6359a0cd336f49a60892a Mon Sep 17 00:00:00 2001
From: plebkff6w <1844263540@qq.com>
Date: Sun, 21 May 2023 10:25:50 +0800
Subject: [PATCH 15/65] Delete 'chart'

---
 chart | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 chart

diff --git a/chart b/chart
deleted file mode 100644
index e69de29..0000000

From b74210052d66cf1e8c7ad4da3119f8df5de497d4 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 10:26:01 +0800
Subject: [PATCH 16/65] C10

---
 README.md | 46 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ff3d144..ac8c5b8 100644
--- a/README.md
+++ b/README.md
@@ -164,4 +164,48 @@
 |    101 | 小米                             |      80 |
 -------------------------------------------------------
 
-```
\ No newline at end of file
+```
+
+#### C10: 从文件中读取学生信息及成绩
+
+选择菜单命令 `1`，提示输入文件名，若文件存在，则打开文件读取 CSV 格式保存的所有库存记录；否则，若文件不存在，则给出错误信息并结束。
+
+假设文件 `a.csv` 中，以 CSV （Comma-Separated Values）格式保存了如下记录：
+
+```
+103,小红,80
+104,小光,100
+101,小米,80
+102,小明,70
+```
+
+则读取记录的过程如下：
+
+```
+请选择：1
+读取数据
+请输入文件名：a.csv
+读取 4 记录
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    103 | 小红                             |      80 |
+|    104 | 小光                             |     100 |
+|    101 | 小米                             |      80 |
+|    102 | 小明                             |      70 |
+-------------------------------------------------------
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：1
+读取数据
+请输入文件名：a
+a: No such file or directory
+
+```

From 35be4bc7372176f5582bcf993de1680021644e90 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 10:28:19 +0800
Subject: [PATCH 17/65] C7

---
 README.md | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/README.md b/README.md
index ac8c5b8..871eb7b 100644
--- a/README.md
+++ b/README.md
@@ -133,6 +133,36 @@
 
 ```
 
+#### C7: 修改学生信息及成绩
+
+选择菜单命令 `7`，根据提示输入学号，若学号存在，则继续输入学号、姓名、成绩，并修改库存记录；否则，提示学号不存在并结束。
+
+```
+请选择：7
+输入学号：104
+输入姓名：小刘
+输入成绩：96
+学生 104 已更新
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+|    104 | 小刘                             |      96 |
+-------------------------------------------------------
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：7
+输入学号：104
+学生不存在.
+
+```
+
 #### C9: 学生信息及成绩排序
 
 选择菜单命令 `8`，对学生按学号从小到大排序。

From e7f5539241c86b024813fe4221054420785f7a47 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 10:28:54 +0800
Subject: [PATCH 18/65] c11-c12

---
 README.md | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/README.md b/README.md
index 871eb7b..254d410 100644
--- a/README.md
+++ b/README.md
@@ -239,3 +239,30 @@
 a: No such file or directory
 
 ```
+#### C11: 将学生信息及成绩保存到文件
+
+选择菜单命令 `2`，提示输入文件名，将所有库存记录以 CSV 格式保存到指定的文件中。
+
+```
+请选择：2
+保存数据
+请输入文件名：b.csv
+保存 4 记录
+
+```
+#### C12: 以图表方式显示学生信息及成绩
+
+选择菜单命令 `9`，以图表方式显示库存记录。
+
+```
+请选择：9
+图表
+    103 : 小红       | ******** (80)
+    104 : 小光        | ************ (100)
+    101 : 小米         | ******************** (80)
+    102 : 小明       | ********** (70)
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+```

From ec7cfa2bb0d301ab94d447d85ca592fc57f82833 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 10:31:39 +0800
Subject: [PATCH 19/65] c8

---
 README.md | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/README.md b/README.md
index 254d410..7cfc18a 100644
--- a/README.md
+++ b/README.md
@@ -162,7 +162,32 @@
 学生不存在.
 
 ```
+#### C8: 删除库存记录
 
+选择菜单命令 `7`，根据提示输入学号，若学号存在，则删除之；否则提示学号不存在并结束。
+
+```
+请选择：7
+输入学号：100
+学号不存在.
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：7
+输学号：101
+学生 101 已删除
+
+1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
+6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
+
+请选择：3
+-------------------------------------------------------
+| NUMBER | NAME                             | ON HAND |
+-------------------------------------------------------
+-------------------------------------------------------
+
+```
 #### C9: 学生信息及成绩排序
 
 选择菜单命令 `8`，对学生按学号从小到大排序。

From 568fcdb1f7ea1bfaa8ecbd572f78d76c5a191364 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 10:57:28 +0800
Subject: [PATCH 20/65] main_chart

---
 pictures/main_chart.drawio.svg | 720 +++++++++++++++++++++++++++++++++
 1 file changed, 720 insertions(+)
 create mode 100644 pictures/main_chart.drawio.svg

diff --git a/pictures/main_chart.drawio.svg b/pictures/main_chart.drawio.svg
new file mode 100644
index 0000000..2c00f92
--- /dev/null
+++ b/pictures/main_chart.drawio.svg
@@ -0,0 +1,720 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="639px" height="1811px" viewBox="-0.5 -0.5 639 1811" content="&lt;mxfile&gt;&lt;diagram id=&quot;TfwQlFdZrpMunsOVL6sM&quot; name=&quot;Page-1&quot;&gt;5V1bd5s4EP41PLaH++XRt257Ti9pst3dPuUoRrHZYuPFuIn761fYYING2K4iIXDOyUmMQGP4vhmNZjQomjVaPP+RotX8UxLiWDP18FmzxpppOpZLfucN26IhMPYNszQK902VhrvoFy4a9aJ1E4V4XbswS5I4i1b1xmmyXOJpVmtDaZo81S97TOL6t67QDIOGuymKYevfUZjN962WpevHE+9xNJsXX227ftFlgcqri0vXcxQmT5Uma6JZozRJsv2nxfMIxzl4JTD7fu8azh7uLMXL7JIO5r7DTxRviodboGhZ3Fu2LZ+YdCLgkoPh0zzK8N0KTfMzT4Re0jbPFjE5MsjHQhxOM/zceEvG4UGJhuBkgbN0Sy4pOrgFNIVyWCVUT0eoDadom1dQ9oo2VLA7O0g+Pj/5UEDAhsMCcETLKANwENZW+cdVmkzxen0elgc0/TFLk80y/LLJ4miJpcFl2xfC5QiAywZwhdF6FaPt/QIvN32CzbFahM0FsE3zP9Z4gX7g++k8SiICSI/Qcy+1URHoeQC9FKPwPkQZ6jRmtlkHzWtT5fwmlRt9Gt/fTgZjAF06TxYPmwsgEwCNQyHDUidP0pBfTirY0NwN/pp0CRqfpTTSoDFOQXNz++Hzn13CJmC5PmnYwJlTBZuv3ya337uEjaE7bYID51EVcD58vpvcdkpzDMNvEx04baqg8+1mPPizU2OOcQhsWkHHOYXOePJx0jF0bKNNdBrnjjtv9aVjduW06snhzLCCzej9oGPguK368pMzwK/fPnQLG69VXx4AbLSJpw0MbTDRJk7+Oxhok0AjXoL8kBbf04aDTgHmt+nfS6uuAPbfput5EvOtU4cs8BiQ2Q6EzBYBGZxLA7jazLJ5dTBM3WWAYcrSHzh5hmAsw0GeqyVH0xit19G0jgF+jrJ/yGed0Lo/+l45M84fUy8PtuXBktxopVN++L167thtd1T2298cDkFamEKbPECySaflVcWwkqF0hrOq5UBWKqifSgGkOEZZ9LN+Gywmim+4SSJygwfS6byNEVgUm/v7L7odCQWSLIMef3xK0v6pgaSdahwe/DJtgdHEFWpLaWs1bWmw4Xa0xaB8jKmbnNoCJdGjiEBtgdHVFWpLOZ2rast+vFGmLTY9IvCOLVCSxLEFRpvXqC0eQ1t8pdpCJcPJVJVXW4AkOl8uUFtg9H2N2uIytMXrkicynECQJzJcenIvUFtgPqIVbeFk3WGw7qpkPaBJ5x0igCCJIwRMs3SZc5vBuaPU0um4wqJ9/8WWTkuy6fmIQNYZCaQr9AsWQ1vsTmnLIcB9sbYcAlzx2lLq4ZVri8nQFqtL/sTgDVCAIHnxiXVJ2rA7/qSsxqxybnZqhNBpu+YeIXR6rBHIutkr1hmZK0Nt5kqvcxVwk04Lksj5q8hystJWSlPiNMMed2RJCfLlBZbWq0hxMrIQalNWlANwRUUmnrzAxHoV6U1GFKs0cUEPBS53bpMWJC9xYb2K1CYjJlEaktBDgc2tKbQgiZrSq7QmI2ehNGVhUibNndQEgiQyDpOaa/QT9++VC7/Nl6MsmBRcYUJG/2ALWLVl0t4pY9WW4XTbP9gMZk2VNNxgpgiFPXwtyjCCNlEzAWqbFcGsh4PbMWXdCnAwXRHiGPcSuENDK8DB4H2dpD30Ckar78zaMJIt3pZFabcLjwFubquvaDMWpCeOFhjacKxNbG041AZ2Xtse2FoQaBNfG7zLfybvtOFI80dFy9Db1b97mk96uVrgakO9rIgP8hafyAmaeUApimMcJ7MULQisK5xG5FFwSp+7OZ44R9lj9IzLzSFEUUXn+D3WzMeVRZXAVeTy8y6UPgRZ50LwWgB+jMelVy7aShN7oCr68P7xi6uiXXl1ri7Uls9QXQg5H9EDjutaguJotsxViBC1M7XcaqIpigfFiUUUhrmMYYrX0S/0sJOXc77K73z3LM5Qc8anzK7YfaXorB0KnKv6YTeUrBaS3uhv9cAWQnJQ75A8Pq7xSyko9a8vBrs7qoywgitKbaWVQyZdNQxs71Irts9KEmjF0D3D98a7bsVOwwre0YoNx65B+sYQwrnhMKWKNXKBFRgd9sqM1TZbbaKUtkKHt7YL2DOQJNCeYXK8h/Z8epac27Mhx56NFuwZZnyu0Z4Z1dy20qUuE2Rd6JjpYns+K0mgPcNl0R7as3nWnvW6PVtizFlnCRVrzQKrpn7HmjmtUq1H9Si7sXgLYGHquSw0kWCBMPHXQwtsGHp7EucKrDfrsMtklQooLWMFBmvy1rHaZyUJNFioLT002IaRutllvjFl+MxSqlh7FlgV2GF7Nhn2rLTWGG7Kx1tCap+VJNCe4RSrh/bckJus2LMpx57NFuz5oiCl/wbNeLvIUrrnBb1yFHCnnM8JajBnwijaVi4rrKbxhkFlV7EN1FH39hK5NVFgbWiHFVFnKKLaJUwqxelz51bOCRLoV8xr8CsN+2IwAjuxqdKAKVSoWynHpJPGTPi5Kw6XSV42M0zSbJ7MkiWKPybJqiDsX5xl26JYA22ypG8mzyhaOL8jyuH1jRdybVGjts/tZs4J+m038xL1ggtr/bN/9/zSJz2vFLRUYjKlCh0AvEsGgO4kVzs1FeQvIjKs+qq2c2Gq5nfngof3F8s79n3n5I2BDmXR4qUdyicRNdv0FC3N8+mn0h20XCphADZJu1Q7aU49R1rm34MTRFjhRgbtTJ5vyKcq62OJ6TpLkx94lMRJepzvPEZxTDU1upTLS1HNgNqt2C+BriiMxVAYek2HpxLV69WqmtrqUYfeDYZ7BwEwvnqePNtStKTDybDSykLAMNgzkJth15XHsKIkPyfDSlfGHZoX7lozwLAj0T8KfGW/zrB9OvImB2KqiNVWJAHWbWF2DSQJZF1RipWTYbNTDINd/bgZlljx4gncQ7QFhpWWSACGuUskAMOHGkoJDCt604uTYaWL5i61z4WhCxuldV8aw+VX9YNhtauo9PwabLLHS3AgL37ye5V6Urs4SfPLvXxB8+sLi57I4fF/ru8vP/7nemvyPw==&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <ellipse cx="85" cy="35" rx="75" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 35px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                main
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    main
+                </text>
+            </switch>
+        </g>
+        <rect x="10" y="120" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 25 120 L 25 170 M 145 120 L 145 170" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 145px; margin-left: 26px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                init
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="149" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    init
+                </text>
+            </switch>
+        </g>
+        <rect x="10" y="210" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 25 210 L 25 260 M 145 210 L 145 260" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 235px; margin-left: 26px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                display_menu
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="239" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    display_menu
+                </text>
+            </switch>
+        </g>
+        <rect x="10" y="300" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 25 300 L 25 350 M 145 300 L 145 350" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 325px; margin-left: 26px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==make_chioice
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="329" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==make_chioice
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="410" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 410 L 385 460 M 505 410 L 505 460" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 435px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                read_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="439" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 400 L 170 435 L 85 470 L 0 435 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 435px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_READ
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="439" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_READ
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 510 L 170 545 L 85 580 L 0 545 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 545px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_SAVE
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="549" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_SAVE
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 620 L 170 655 L 85 690 L 0 655 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 655px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_PRINT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="659" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_PRINT
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 730 L 170 765 L 85 800 L 0 765 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 765px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_QUERY
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="769" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_QUERY
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 860 L 170 895 L 85 930 L 0 895 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 895px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_INSERT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="899" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_INSERT
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 980 L 170 1015 L 85 1050 L 0 1015 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 1015px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_UPDATE
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="1019" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_UPDATE
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 1090 L 170 1125 L 85 1160 L 0 1125 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 1125px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_DELETE
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="1129" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_DELETE
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 1200 L 170 1235 L 85 1270 L 0 1235 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 1235px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_SORT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="1239" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_SORT
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 1310 L 170 1345 L 85 1380 L 0 1345 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 1345px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_CHART
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="1349" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_CHART
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 1420 L 170 1455 L 85 1490 L 0 1455 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 1455px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c==CMD_QUIT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="1459" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c==CMD_QUIT
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 1530 L 170 1565 L 85 1600 L 0 1565 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 1565px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                确定退出
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="1569" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    确定退出
+                </text>
+            </switch>
+        </g>
+        <rect x="12.5" y="1650" width="145" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 27.5 1650 L 27.5 1690 M 142.5 1650 L 142.5 1690" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 114px; height: 1px; padding-top: 1670px; margin-left: 29px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                quit
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="86" y="1674" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    quit
+                </text>
+            </switch>
+        </g>
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+        <path d="M 85 690 L 85 723.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
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+        <path d="M 85 580 L 85 613.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
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+        <path d="M 85 398.88 L 81.5 391.88 L 85 393.63 L 88.5 391.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 85 260 L 85 293.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 298.88 L 81.5 291.88 L 85 293.63 L 88.5 291.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 85 70 L 85 113.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 118.88 L 81.5 111.88 L 85 113.63 L 88.5 111.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 85 170 L 85 203.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 208.88 L 81.5 201.88 L 85 203.63 L 88.5 201.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="370" y="520" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 520 L 385 570 M 505 520 L 505 570" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 545px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                save_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="549" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="630" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 630 L 385 680 M 505 630 L 505 680" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 655px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                peint_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="659" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    peint_data
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="740" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 740 L 385 790 M 505 740 L 505 790" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 765px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="769" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="870" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 870 L 385 920 M 505 870 L 505 920" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 895px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                add_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="899" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    add_data
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="990" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 990 L 385 1040 M 505 990 L 505 1040" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 1015px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                update_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="1019" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    update_data
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="1100" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 1100 L 385 1150 M 505 1100 L 505 1150" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 1125px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                delete_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="1129" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    delete_data
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="1210" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 1210 L 385 1260 M 505 1210 L 505 1260" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 1235px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                sort_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="1239" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    sort_data
+                </text>
+            </switch>
+        </g>
+        <rect x="370" y="1320" width="150" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 385 1320 L 385 1370 M 505 1320 L 505 1370" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 1345px; margin-left: 386px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_chart
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="445" y="1349" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_chart
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 1480 L 380 1430 L 520 1430 L 500 1480 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 1455px; margin-left: 361px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                命令错误，请重新选择
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="440" y="1459" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    命令错误，请重新选择
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 1455 L 363.63 1455" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 1455 L 361.88 1458.5 L 363.63 1455 L 361.88 1451.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1456px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="1459" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 1345 L 363.63 1345" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 1345 L 361.88 1348.5 L 363.63 1345 L 361.88 1341.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1346px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="1349" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 1235 L 363.63 1235" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 1235 L 361.88 1238.5 L 363.63 1235 L 361.88 1231.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1236px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="1239" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 1125 L 363.63 1125" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 1125 L 361.88 1128.5 L 363.63 1125 L 361.88 1121.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1126px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="1129" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 1015 L 363.63 1015" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 1015 L 361.88 1018.5 L 363.63 1015 L 361.88 1011.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1016px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="1019" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 895 L 363.63 895" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 895 L 361.88 898.5 L 363.63 895 L 361.88 891.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 896px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="899" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 765 L 363.63 765" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 765 L 361.88 768.5 L 363.63 765 L 361.88 761.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 766px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="769" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 655 L 363.63 655" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 655 L 361.88 658.5 L 363.63 655 L 361.88 651.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 655px; margin-left: 270px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="270" y="658" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 545 L 363.63 545" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 545 L 361.88 548.5 L 363.63 545 L 361.88 541.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 546px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="549" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 435 L 363.63 435" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 368.88 435 L 361.88 438.5 L 363.63 435 L 361.88 431.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 436px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="271" y="439" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 1565 L 620 1565 Q 630 1565 630 1555 L 630 840 Q 630 830 630 820 L 630 200 Q 630 190 620 190 L 91.37 190" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 86.12 190 L 93.12 186.5 L 91.37 190 L 93.12 193.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 435 L 623.63 435" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 435 L 621.88 438.5 L 623.63 435 L 621.88 431.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="245" y="1535" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1550px; margin-left: 260px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="260" y="1554" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <path d="M 510 1455 L 623.63 1455" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 1455 L 621.88 1458.5 L 623.63 1455 L 621.88 1451.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 1345 L 623.63 1345" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 1345 L 621.88 1348.5 L 623.63 1345 L 621.88 1341.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 1235 L 623.63 1235" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 1235 L 621.88 1238.5 L 623.63 1235 L 621.88 1231.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 1120 L 623.63 1120" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 1120 L 621.88 1123.5 L 623.63 1120 L 621.88 1116.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 1015 L 623.63 1015" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 1015 L 621.88 1018.5 L 623.63 1015 L 621.88 1011.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 895 L 623.63 895" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 895 L 621.88 898.5 L 623.63 895 L 621.88 891.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 765 L 623.63 765" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 765 L 621.88 768.5 L 623.63 765 L 621.88 761.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 655 L 623.63 655" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 655 L 621.88 658.5 L 623.63 655 L 621.88 651.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 520 545 L 623.63 545" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 628.88 545 L 621.88 548.5 L 623.63 545 L 621.88 541.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From d8eda4c6ee1a738e3014cd299d7a5fba9e717ba7 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 11:01:47 +0800
Subject: [PATCH 21/65] zhu

---
 README.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.md b/README.md
index 7cfc18a..f72b677 100644
--- a/README.md
+++ b/README.md
@@ -291,3 +291,11 @@ a: No such file or directory
 6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
 
 ```
+
+## 概要设计
+
+系统主要分为用户界面和数据处理两大模块。
+用户界面模块包括系统初始化（init），显示菜单（display_menu），选择菜单命令（make_choice）、确认（confirm）、退出（quit）等子模块。
+数据处理模块包括读取数据（read_data）、保存数据（save_data）、打印数据（print_data）、查询数据（query_data）、添加数据（add_data）、更新数据（update_data）、删除数据（delete_data）、数据排序（sort_data）和生成图表（make_chart）等子模块。其中查询、添加、更新和删除数据还会用到根据编号查询数据的方法（find）。
+
+上述各模块通过主程序（main）进行调用，系统模块图如下。

From f2fcc0d0749131b0712af02d0c0ce27721cb7342 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 11:01:59 +0800
Subject: [PATCH 22/65] zhu

---
 .vscode/extensions.json | 5 +++++
 xitongmoban.drawio.svg  | 0
 2 files changed, 5 insertions(+)
 create mode 100644 .vscode/extensions.json
 create mode 100644 xitongmoban.drawio.svg

diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..ca9e6a0
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "hediet.vscode-drawio"
+    ]
+}
\ No newline at end of file
diff --git a/xitongmoban.drawio.svg b/xitongmoban.drawio.svg
new file mode 100644
index 0000000..e69de29

From 3dd42e1a1253d10f68533073b7330535bd1cae80 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 11:05:48 +0800
Subject: [PATCH 23/65] x

---
 xitongmoban.drawio.svg | 318 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 318 insertions(+)
 create mode 100644 xitongmoban.drawio.svg

diff --git a/xitongmoban.drawio.svg b/xitongmoban.drawio.svg
new file mode 100644
index 0000000..d9fba8e
--- /dev/null
+++ b/xitongmoban.drawio.svg
@@ -0,0 +1,318 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="831px" height="671px" viewBox="-0.5 -0.5 831 671" content="&lt;mxfile&gt;&lt;diagram id=&quot;QSW1JIFk8SVonfcxsiXT&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <rect x="0" y="150" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 180px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                init
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="184" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    init
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="230" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 260px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                display_menu
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="264" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    display_menu
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="310" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 340px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_choice
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_choice
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="400" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 430px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                confirm
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="434" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    confirm
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="490" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 520px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                quit
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="524" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    quit
+                </text>
+            </switch>
+        </g>
+        <path d="M 255 340 L 126.37 340" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 340 L 128.12 336.5 L 126.37 340 L 128.12 343.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 375 340 L 533.63 340" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 340 L 531.88 343.5 L 533.63 340 L 531.88 336.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="255" y="310" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 340px; margin-left: 256px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                main
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="315" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    main
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="0" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 30px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                read_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="34" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="70" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                save_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="104" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="140" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 170px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                print_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="174" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    print_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 660 250 L 760 250 Q 770 250 770 260 L 770 536.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 770 541.88 L 766.5 534.88 L 770 536.63 L 773.5 534.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="540" y="220" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 250px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="254" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="310" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 340px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                add_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    add_data
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="390" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 420px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                update_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="424" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    update_data
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="470" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 500px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                delete_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="504" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    delete_data
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="543" width="120" height="57.5" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 572px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                sort_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="575" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    sort_data
+                </text>
+            </switch>
+        </g>
+        <rect x="540" y="610" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 640px; margin-left: 541px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="600" y="644" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 200 340 L 200 270 Q 200 260 200 250 L 200 190 Q 200 180 190 180 L 126.37 180" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 180 L 128.12 176.5 L 126.37 180 L 128.12 183.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 200 260 L 126.37 260" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 260 L 128.12 256.5 L 126.37 260 L 128.12 263.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 200 340 L 200 525 Q 200 535 190 535 L 126.37 535" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 535 L 128.12 531.5 L 126.37 535 L 128.12 538.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 200 430 L 126.37 430" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 430 L 128.12 426.5 L 126.37 430 L 128.12 433.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 340 L 450 25 Q 450 15 460 15 L 533.63 15" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 15 L 531.88 18.5 L 533.63 15 L 531.88 11.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 340 L 450 630 Q 450 640 460 640 L 533.63 640" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 640 L 531.88 643.5 L 533.63 640 L 531.88 636.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 100 L 533.63 100" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 100 L 531.88 103.5 L 533.63 100 L 531.88 96.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 170 L 533.63 170" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 170 L 531.88 173.5 L 533.63 170 L 531.88 166.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 250 L 533.63 250" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 250 L 531.88 253.5 L 533.63 250 L 531.88 246.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 420 L 533.63 420" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 420 L 531.88 423.5 L 533.63 420 L 531.88 416.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 500 L 533.63 500" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 500 L 531.88 503.5 L 533.63 500 L 531.88 496.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 450 570 L 533.63 571.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 538.88 571.73 L 531.82 575.09 L 533.63 571.63 L 531.95 568.09 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="710" y="543" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 573px; margin-left: 711px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                find
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="770" y="577" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    find
+                </text>
+            </switch>
+        </g>
+        <path d="M 660 340 L 770 340" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 660 420 L 770 420" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 660 500 L 770 500" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From c10dcae6088424dba84bbb14ec4a6258ba6a3b5d Mon Sep 17 00:00:00 2001
From: pxm3swffk <1131672768@qq.com>
Date: Sun, 21 May 2023 11:07:25 +0800
Subject: [PATCH 24/65] Delete 'xitongmoban.drawio.svg'

---
 xitongmoban.drawio.svg | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 xitongmoban.drawio.svg

diff --git a/xitongmoban.drawio.svg b/xitongmoban.drawio.svg
deleted file mode 100644
index e69de29..0000000

From 83c1e729de6596224a779416ec49f00eedcff7cc Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 11:08:15 +0800
Subject: [PATCH 25/65] =?UTF-8?q?=E6=8F=92=E5=85=A5=E5=9B=BE=E7=89=87?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/README.md b/README.md
index 7cfc18a..7670351 100644
--- a/README.md
+++ b/README.md
@@ -291,3 +291,28 @@ a: No such file or directory
 6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
 
 ```
+
+
+## 概要设计
+
+
+系统主要分为用户界面和数据处理两大模块。
+用户界面模块包括系统初始化（init），显示菜单（display_menu），选择菜单命令（make_choice）、确认（confirm）、退出（quit）等子模块。
+数据处理模块包括读取数据（read_data）、保存数据（save_data）、打印数据（print_data）、查询数据（query_data）、添加数据（add_data）、更新数据（update_data）、删除数据（delete_data）、数据排序（sort_data）和生成图表（make_chart）等子模块。其中查询、添加、更新和删除数据还会用到根据编号查询数据的方法（find）。
+
+上述各模块通过主程序（main）进行调用，系统模块图如下。
+
+
+
+## 详细设计
+
+
+#### main
+
+伪代码：
+```
+
+```
+流程图：
+
+![](pictures/main_chart.drawio.svg)

From 9c56b9152acfb93165932a314f47a4562fc5a09b Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 11:14:21 +0800
Subject: [PATCH 26/65] xitong

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index f72b677..954213c 100644
--- a/README.md
+++ b/README.md
@@ -299,3 +299,4 @@ a: No such file or directory
 数据处理模块包括读取数据（read_data）、保存数据（save_data）、打印数据（print_data）、查询数据（query_data）、添加数据（add_data）、更新数据（update_data）、删除数据（delete_data）、数据排序（sort_data）和生成图表（make_chart）等子模块。其中查询、添加、更新和删除数据还会用到根据编号查询数据的方法（find）。
 
 上述各模块通过主程序（main）进行调用，系统模块图如下。
+![](pictures/xitongmoban.drawio.svg)
\ No newline at end of file

From 8c0a0c3e4be2872e9d20926706cb4de187c47f3d Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 11:14:30 +0800
Subject: [PATCH 27/65] xitong

---
 xitongmoban.drawio.svg => pictures/xitongmoban.drawio.svg | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename xitongmoban.drawio.svg => pictures/xitongmoban.drawio.svg (100%)

diff --git a/xitongmoban.drawio.svg b/pictures/xitongmoban.drawio.svg
similarity index 100%
rename from xitongmoban.drawio.svg
rename to pictures/xitongmoban.drawio.svg

From 4b2e24c0c1dd678ef4325982c90c3ba73a75f0db Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 11:15:38 +0800
Subject: [PATCH 28/65] =?UTF-8?q?=E3=80=82=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 7670351..834f9e6 100644
--- a/README.md
+++ b/README.md
@@ -304,15 +304,40 @@ a: No such file or directory
 
 
 
+各模块的主要功能如下：
+
+#### main
+
+系统主函数模块，显示菜单，根据用户选择的菜单命令，执行相关操作。
+
+#### init
+
+系统初始化。
+
+#### display_menu
+
+显示菜单命令。
+
 ## 详细设计
 
+针对概要设计
 
 #### main
 
-伪代码：
-```
+Step 1: 初始化
+Step 2: 根据用户选择的命令执行对应的操作
+Step 2.1: 显示菜单
+Step 2.2: 选择菜单命令 c
+Step 2.3: if c == CMD_READ then 读取数据
+Step 2.4: if c == CMD_SAVE then 保存数据
+Step 2.5: if c == CMD_PRINT then 打印数据
+Step 2.6: if c == CMD_QUERY then 查询数据
+Step 2.7: if c == CMD_ADD then 添加数据
+Step 2.8: if c == CMD_UPDATE then 修改数据
+Step 2.9: if c == CMD_DELETE then 删除数据
+Step 2.10: if c == CMD_SORT then 排序数据
+Step 2.11: if c == CMD_MAKE then 显示图表
+Step 2.12: if c == CMD_QUIT then 退出
 
-```
-流程图：
 
 ![](pictures/main_chart.drawio.svg)

From 14e5d26e1173e63e1388f1bb1c8ddebb8ac0ee7e Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 11:24:40 +0800
Subject: [PATCH 29/65] make-chart

---
 pictures/make_chart.drawio.svg | 71 ++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 pictures/make_chart.drawio.svg

diff --git a/pictures/make_chart.drawio.svg b/pictures/make_chart.drawio.svg
new file mode 100644
index 0000000..43a66b3
--- /dev/null
+++ b/pictures/make_chart.drawio.svg
@@ -0,0 +1,71 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="146px" height="491px" viewBox="-0.5 -0.5 146 491" content="&lt;mxfile&gt;&lt;diagram id=&quot;QPJ6jyc7iAC-M0BeSzZU&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <ellipse cx="75" cy="40" rx="70" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 40px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_chart
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="75" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_chart
+                </text>
+            </switch>
+        </g>
+        <path d="M 5 220 L 25 150 L 145 150 L 125 220 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 185px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                读取文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="75" y="189" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    读取文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 0 350 L 20 280 L 140 280 L 120 350 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 315px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                显示文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="70" y="319" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示文件
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="70" cy="450" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 75 80 L 75 143.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 148.88 L 71.5 141.88 L 75 143.63 L 78.5 141.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 220 L 75 273.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 278.88 L 71.5 271.88 L 75 273.63 L 78.5 271.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 70 350 L 70 403.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 70 408.88 L 66.5 401.88 L 70 403.63 L 73.5 401.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From ba11fdf95fc02c38925254b34f17182a8a64b374 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 11:26:59 +0800
Subject: [PATCH 30/65] make_chart

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index e90139f..e25ac18 100644
--- a/README.md
+++ b/README.md
@@ -342,3 +342,13 @@ Step 2.12: if c == CMD_QUIT then 退出
 
 
 ![](pictures/main_chart.drawio.svg)
+
+
+
+
+#### make_chart
+
+Step 1: 读取文件
+Step 2: 显示图表
+
+![](pictures/make_chart.drawio.svg)
\ No newline at end of file

From 36f81db900c68afc0a3621a1fd9f9a98a33dadf3 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 14:59:02 +0800
Subject: [PATCH 31/65] confirm

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index 834f9e6..2c307c0 100644
--- a/README.md
+++ b/README.md
@@ -341,3 +341,9 @@ Step 2.12: if c == CMD_QUIT then 退出
 
 
 ![](pictures/main_chart.drawio.svg)
+
+#### confirm
+
+Step 1: 输出 确定要退出吗
+Step 2: if 确认 then 退出
+

From ba7b0174ecebb8417d4aa45c6fdc9150d2c12263 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:02:39 +0800
Subject: [PATCH 32/65] C10

---
 .vscode/extensions.json |   5 ++
 query_data.drawio.svg   | 143 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 148 insertions(+)
 create mode 100644 .vscode/extensions.json
 create mode 100644 query_data.drawio.svg

diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..8b3d6e9
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "mhutchie.git-graph"
+    ]
+}
\ No newline at end of file
diff --git a/query_data.drawio.svg b/query_data.drawio.svg
new file mode 100644
index 0000000..fa4a66d
--- /dev/null
+++ b/query_data.drawio.svg
@@ -0,0 +1,143 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="501px" height="621px" viewBox="-0.5 -0.5 501 621" content="&lt;mxfile&gt;&lt;diagram id=&quot;EM7BMO-g3w7p9Cm9khwN&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 90 70 L 90 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 108.88 L 86.5 101.88 L 90 103.63 L 93.5 101.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="90" cy="35" rx="60" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 35px; margin-left: 31px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 160 L 90 193.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 198.88 L 86.5 191.88 L 90 193.63 L 93.5 191.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 30 160 L 50 110 L 150 110 L 130 160 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 135px; margin-left: 31px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="139" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学号
+                </text>
+            </switch>
+        </g>
+        <path d="M 180 240 L 420 240 Q 430 240 430 250 L 430 353.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 430 358.88 L 426.5 351.88 L 430 353.63 L 433.5 351.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 240px; margin-left: 370px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Label
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="370" y="243" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Label
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 280 L 90 353.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 358.88 L 86.5 351.88 L 90 353.63 L 93.5 351.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 200 L 180 240 L 90 280 L 0 240 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 240px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学号存在?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="244" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学号存在?
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 420 L 90 553.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 558.88 L 86.5 551.88 L 90 553.63 L 93.5 551.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 20 420 L 40 360 L 160 360 L 140 420 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 390px; margin-left: 21px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                显示：学号不存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="394" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示：学号不存在
+                </text>
+            </switch>
+        </g>
+        <path d="M 430 420 L 430 490 Q 430 500 420 500 L 96.37 500" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 91.12 500 L 98.12 496.5 L 96.37 500 L 98.12 503.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 501px; margin-left: 276px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Label
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="276" y="504" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Label
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 420 L 380 360 L 500 360 L 480 420 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 390px; margin-left: 361px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输出姓名学号成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="430" y="394" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输出姓名学号成绩
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="90" cy="590" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From 952f5eff251f7fea48c916cc3d063d78cf73a925 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:04:11 +0800
Subject: [PATCH 33/65] confirm

---
 pictures/confirm.drawio.svg | 90 +++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 pictures/confirm.drawio.svg

diff --git a/pictures/confirm.drawio.svg b/pictures/confirm.drawio.svg
new file mode 100644
index 0000000..8dc9893
--- /dev/null
+++ b/pictures/confirm.drawio.svg
@@ -0,0 +1,90 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="441px" height="621px" viewBox="-0.5 -0.5 441 621" content="&lt;mxfile&gt;&lt;diagram id=&quot;xqaYZJClM3BCu8lo3jDS&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <ellipse cx="80" cy="40" rx="70" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 40px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                confirm
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    confirm
+                </text>
+            </switch>
+        </g>
+        <path d="M 0 230 L 20 150 L 160 150 L 140 230 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 190px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                提示确定要退出吗
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="194" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示确定要退出吗
+                </text>
+            </switch>
+        </g>
+        <path d="M 0 380 L 20 300 L 160 300 L 140 380 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 340px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                退出？
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    退出？
+                </text>
+            </switch>
+        </g>
+        <path d="M 300 500 L 320 420 L 440 420 L 420 500 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 460px; margin-left: 301px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                确认
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="370" y="464" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    确认
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="80" cy="580" rx="70" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 370 500 L 370 570 Q 370 580 360 580 L 156.37 580" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 151.12 580 L 158.12 576.5 L 156.37 580 L 158.12 583.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 150 340 L 375 340 Q 385 340 384.98 350 L 384.85 410.59" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 384.84 415.84 L 381.36 408.83 L 384.85 410.59 L 388.36 408.85 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 230 L 80 293.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 298.88 L 76.5 291.88 L 80 293.63 L 83.5 291.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 80 L 80 143.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 148.88 L 76.5 141.88 L 80 143.63 L 83.5 141.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From 5df5344798939af790bace7c656ec4bc47c5bc42 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:04:45 +0800
Subject: [PATCH 34/65] confirm

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 2c307c0..157f9ff 100644
--- a/README.md
+++ b/README.md
@@ -347,3 +347,4 @@ Step 2.12: if c == CMD_QUIT then 退出
 Step 1: 输出 确定要退出吗
 Step 2: if 确认 then 退出
 
+![](pictures/confirm.drawio.svg)

From e93fbab44e3ea3c16f47b9f776b32b357cf50fe9 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 15:12:18 +0800
Subject: [PATCH 35/65] data

---
 README.md       |  18 +++--
 data.drawio.svg | 170 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 178 insertions(+), 10 deletions(-)
 create mode 100644 data.drawio.svg

diff --git a/README.md b/README.md
index 7b0c3e6..b60fcfa 100644
--- a/README.md
+++ b/README.md
@@ -343,20 +343,18 @@ Step 2.12: if c == CMD_QUIT then 退出
 
 ![](pictures/main_chart.drawio.svg)
 
+#### save_data
 
+Step 1: 输入文件名
+Step 2: 打开文件
+Step 3: if 打开文件失败 then 提示打开文件失败并结束
+Step 4: 将所有库存记录写入文件
+Step 5: 关闭文件
 
-
+![](pictures/data.drawio.svg)
 #### make_chart
 
 Step 1: 读取文件
 Step 2: 显示图表
 
-![](pictures/make_chart.drawio.svg)
-
-
-#### confirm
-
-Step 1: 输出 确定要退出吗
-Step 2: if 确认 then 退出
-
-![](pictures/confirm.drawio.svg)
+![](pictures/make_chart.drawio.svg)
\ No newline at end of file
diff --git a/data.drawio.svg b/data.drawio.svg
new file mode 100644
index 0000000..ce072f3
--- /dev/null
+++ b/data.drawio.svg
@@ -0,0 +1,170 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="351px" height="721px" viewBox="-0.5 -0.5 351 721" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 90 90 L 90 113.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 118.88 L 86.5 111.88 L 90 113.63 L 93.5 111.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="90" cy="45" rx="80" ry="45" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 45px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    save_data
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="49" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 88.41 190 L 87.33 213.65" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 87.1 218.9 L 83.92 211.74 L 87.33 213.65 L 90.91 212.06 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="20" y="120" width="140" height="70" rx="10.5" ry="10.5" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 155px; margin-left: 21px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    输入文件名
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="159" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入文件名
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 310 L 85 323.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 328.88 L 81.5 321.88 L 85 323.63 L 88.5 321.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 42.5 242.5 C 8.5 242.5 0 265 27.2 269.5 C 0 279.4 30.6 301 52.7 292 C 68 310 119 310 136 292 C 170 292 170 274 148.75 265 C 170 247 136 229 106.25 238 C 85 224.5 51 224.5 42.5 242.5 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 265px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    打开文件
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="269" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打开文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 420 L 85 433.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 438.88 L 81.5 431.88 L 85 433.63 L 88.5 431.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 45 352.5 L 76.28 334.9 Q 85 330 93.72 334.9 L 156.28 370.1 Q 165 375 156.28 379.9 L 93.72 415.1 Q 85 420 76.28 415.1 L 13.72 379.9 Q 5 375 13.72 370.1 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 375px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    打开文件成功？
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="379" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打开文件成功？
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 520 L 85 543.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 548.88 L 81.5 541.88 L 85 543.63 L 88.5 541.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 25 460 L 30.53 448.94 Q 35 440 45 440 L 125 440 Q 135 440 139.47 448.94 L 150.53 471.06 Q 155 480 150.53 488.94 L 139.47 511.06 Q 135 520 125 520 L 45 520 Q 35 520 30.53 511.06 L 19.47 488.94 Q 15 480 19.47 471.06 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 480px; margin-left: 16px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <div style="text-align: justify;">
+                                    <span style="background-color: initial;">
+                                        把
+                                    </span>
+                                    <font color="#000000" style="background-color: initial;">
+                                        所有库存记录写入文档
+                                    </font>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="484" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    把所有库存记录写入文档
+                </text>
+            </switch>
+        </g>
+        <path d="M 155 480 L 166.06 474.47 Q 175 470 175 480 L 175 485 Q 175 490 166.32 489.04 L 157.64 488.07" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 152.43 487.49 L 159.77 484.79 L 157.64 488.07 L 159 491.74 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 85 620 L 85 643.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 648.88 L 81.5 641.88 L 85 643.63 L 88.5 641.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="10" y="550" width="150" height="70" rx="10.5" ry="10.5" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 585px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000" style="font-size: 12px;">
+                                    关闭文件
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="589" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    关闭文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 283.61 440 L 288.97 387.95 Q 290 378 280 377.97 L 164.33 377.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 159.08 377.61 L 166.09 374.13 L 164.33 377.63 L 166.07 381.13 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 280 510 L 280 630 Q 280 640 270 640 L 86.37 640" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 81.12 640 L 88.12 636.5 L 86.37 640 L 88.12 643.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 270 510 L 220 510 Q 210 510 212.75 500.38 L 227.25 449.62 Q 230 440 240 440 L 340 440 Q 350 440 347.25 449.62 L 332.75 500.38 Q 330 510 320 510 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 475px; margin-left: 211px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    提示打开文件失败
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="280" y="479" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示打开文件失败
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="85" cy="685" rx="75" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From a22c4c334ea5153d55d8e15ab1a1149dd233a210 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 15:12:33 +0800
Subject: [PATCH 36/65] data

---
 data.drawio.svg => pictures/data.drawio.svg | 125 +++++++++--------
 pictures/read.drawio.svg                    | 144 ++++++++++++++++++++
 2 files changed, 205 insertions(+), 64 deletions(-)
 rename data.drawio.svg => pictures/data.drawio.svg (56%)
 create mode 100644 pictures/read.drawio.svg

diff --git a/data.drawio.svg b/pictures/data.drawio.svg
similarity index 56%
rename from data.drawio.svg
rename to pictures/data.drawio.svg
index ce072f3..ae0dab7 100644
--- a/data.drawio.svg
+++ b/pictures/data.drawio.svg
@@ -1,13 +1,13 @@
-<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="351px" height="721px" viewBox="-0.5 -0.5 351 721" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="701px" viewBox="-0.5 -0.5 341 701" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;3Vpbc+o2EP41eixjW5YsPQKB04d25szkoadPHQcr4KlBVJgA/fVd2TJYvhADNuecJpkgrde67Lf7rVYJwtP18YsKt6vfZSQS5DnREeEX5HmU+fBbC065gNAgFyxVHOUi9yJ4jf8VRugY6T6OxM5STKVM0nhrCxdysxGL1JKFSsmDrfYuE3vWbbgUNcHrIkzq0j/iKF3lUkaci/xXES9XxcyuY56sw0LZCHarMJKHkgjPEJ4qKdO8tT5ORaJtV9glf2/e8vS8MCU2aZcXsFnHR5jszebMwtJTsVsRweZNdyM38DFZpesEei406zOaRezkXi3MEGbQNFRLYbQ8nsv06KX3zDK/CLkWqTqBghJJmMYftulDg+DyrHfZJDTMPpv37DVsmSawrMm7hD1ot0mkyp7Qf/YaCdgkdrKvsogu9ecu/BB/RWEaFoPA9Pk4+fO6OZME/FRb8bCKU/G6DTMrHSBSbMu+x0kyPS8Fz7MvPWOq5N+i9MQs7QoWH0Kl4njVzEfbIUxkMtM9XNzcpUa2Krl44DyOC3/UFdsNowG5yWD9eaV59auMM98qQHDYyHf4+Zsxy+weqdgzDyYzSDmea+PSUcA54ZTgwKGUcntc5owcYCNGSYAx9ji1p8kDtDZNhtx5853AdJui7HuhWeYd92kIE8v0uBoiLZDeYWtM+yHxikk+ZXW3wbyYPInFi8l7onE0o4hxxDGaETSZIiA+kEB8sADNfDSZoAnNdBjijtZhY8TnaDbXytDoSP5qJddv+90Q5K/kfhOJyIqe4nRyNVHfnRww75gdeA/Zwf2R0oNFKOz7EAphgxGKG9xoWnGM02+l9p/QdkbE9F70DpyiczKdnylbBxXT+/em58AdYZcEjPsBhjLIpZVxg5EWa6w9igsY+s/Onj9sMJmSDQ4Bd6BppRhWDzgP9416Zw5in+Wci/2KBKMf/LLL7DEGBdfbHvO0c05AtyYqyD2QoiBRQboK0PilIVF1zUZWyvgJyhHqNmQcMlA9cnNMwDbV6VtGfZzQQmC4EMobI7jQYdY7lXtfhYphoUJ1Isnewqy4jnjCQXmsVHgqKWw1ne3auRe7tgv4mFVAzEe8mwrJj8l8BSTDHyts+wZOJXRass7NOLbM0xuOTTdZD9YD8+ysDxwLvDruViGQTNlFM4YmPhqTrlS8W4Vb3QSvCJNEJHKpwjUobkuEYD0rMcXnzH0UxS1qH7VFD7xeJXbiNBC7PxSx4w6nn+Fu6Xo3ZsWWwTOTJH74nucxluz9FrmFJStZqFbS9ng2byp0HyEyYKKZoS04OAIlNdIWbIi9/D/YqoeQ8m243aabjiZ6on2EFB46gp4dLfju6+zqQMOFHW4oiW/I+LyG2W3FVQuEVw6bLWHRg/OTFq4rO783lPOT/o9xY/2TY2kgnOq2BnVs0IUqmjNNleMZmmT3uxOQkIwzQZ9fI88bOTOSi/06A+czp3jLPei3t6EvhWuu0eBAXamy80muen3ZwVuge/nTeB7jl/8vwLP/AA==&lt;/diagram&gt;&lt;/mxfile&gt;">
     <defs/>
     <g>
-        <path d="M 90 90 L 90 113.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 90 118.88 L 86.5 111.88 L 90 113.63 L 93.5 111.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <ellipse cx="90" cy="45" rx="80" ry="45" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 80 70 L 80 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 108.88 L 76.5 101.88 L 80 103.63 L 83.5 101.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="80" cy="35" rx="80" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 45px; margin-left: 11px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 35px; margin-left: 1px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                 <font color="#000000">
@@ -17,147 +17,144 @@
                         </div>
                     </div>
                 </foreignObject>
-                <text x="90" y="49" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                <text x="80" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
                     save_data
                 </text>
             </switch>
         </g>
-        <path d="M 88.41 190 L 87.33 213.65" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 87.1 218.9 L 83.92 211.74 L 87.33 213.65 L 90.91 212.06 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <rect x="20" y="120" width="140" height="70" rx="10.5" ry="10.5" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 78.41 170 L 77.14 193.65" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 76.86 198.89 L 73.74 191.72 L 77.14 193.65 L 80.73 192.09 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 290 L 76.19 305.52" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 76.6 310.75 L 72.57 304.04 L 76.19 305.52 L 79.55 303.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 400 L 80 413.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 418.88 L 76.5 411.88 L 80 413.63 L 83.5 411.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 40 332.5 L 71.28 314.9 Q 80 310 88.72 314.9 L 151.28 350.1 Q 160 355 151.28 359.9 L 88.72 395.1 Q 80 400 71.28 395.1 L 8.72 359.9 Q 0 355 8.72 350.1 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 155px; margin-left: 21px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 355px; margin-left: 1px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                 <font color="#000000">
-                                    输入文件名
+                                    打开文件成功？
                                 </font>
                             </div>
                         </div>
                     </div>
                 </foreignObject>
-                <text x="90" y="159" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
-                    输入文件名
+                <text x="80" y="359" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打开文件成功？
                 </text>
             </switch>
         </g>
-        <path d="M 85 310 L 85 323.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 85 328.88 L 81.5 321.88 L 85 323.63 L 88.5 321.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 42.5 242.5 C 8.5 242.5 0 265 27.2 269.5 C 0 279.4 30.6 301 52.7 292 C 68 310 119 310 136 292 C 170 292 170 274 148.75 265 C 170 247 136 229 106.25 238 C 85 224.5 51 224.5 42.5 242.5 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 500 L 75 523.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 528.88 L 71.5 521.88 L 75 523.63 L 78.5 521.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145 460 L 144.16 461.67" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 141.82 466.37 L 141.82 458.54 L 144.16 461.67 L 148.08 461.67 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 600 L 75 623.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 628.88 L 71.5 621.88 L 75 623.63 L 78.5 621.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="530" width="150" height="70" rx="10.5" ry="10.5" fill="#ffffff" stroke="#000000" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 265px; margin-left: 1px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 565px; margin-left: 1px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
-                                <font color="#000000">
-                                    打开文件
+                                <font color="#000000" style="font-size: 12px;">
+                                    关闭文件
                                 </font>
                             </div>
                         </div>
                     </div>
                 </foreignObject>
-                <text x="85" y="269" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
-                    打开文件
+                <text x="75" y="569" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    关闭文件
                 </text>
             </switch>
         </g>
-        <path d="M 85 420 L 85 433.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 85 438.88 L 81.5 431.88 L 85 433.63 L 88.5 431.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 45 352.5 L 76.28 334.9 Q 85 330 93.72 334.9 L 156.28 370.1 Q 165 375 156.28 379.9 L 93.72 415.1 Q 85 420 76.28 415.1 L 13.72 379.9 Q 5 375 13.72 370.1 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 273.61 420 L 278.97 367.95 Q 280 358 270 357.97 L 159.33 357.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 154.08 357.61 L 161.09 354.13 L 159.33 357.63 L 161.07 361.13 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 270 490 L 270 610 Q 270 620 260 620 L 76.37 620" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 71.12 620 L 78.12 616.5 L 76.37 620 L 78.12 623.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 260 490 L 210 490 Q 200 490 202.75 480.38 L 217.25 429.62 Q 220 420 230 420 L 330 420 Q 340 420 337.25 429.62 L 322.75 480.38 Q 320 490 310 490 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 375px; margin-left: 6px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 455px; margin-left: 201px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                 <font color="#000000">
-                                    打开文件成功？
+                                    提示打开文件失败
                                 </font>
                             </div>
                         </div>
                     </div>
                 </foreignObject>
-                <text x="85" y="379" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
-                    打开文件成功？
+                <text x="270" y="459" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示打开文件失败
                 </text>
             </switch>
         </g>
-        <path d="M 85 520 L 85 543.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 85 548.88 L 81.5 541.88 L 85 543.63 L 88.5 541.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 25 460 L 30.53 448.94 Q 35 440 45 440 L 125 440 Q 135 440 139.47 448.94 L 150.53 471.06 Q 155 480 150.53 488.94 L 139.47 511.06 Q 135 520 125 520 L 45 520 Q 35 520 30.53 511.06 L 19.47 488.94 Q 15 480 19.47 471.06 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="75" cy="665" rx="75" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 80 170 L 80 203.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 208.88 L 76.5 201.88 L 80 203.63 L 83.5 201.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 10 170 L 30 110 L 150 110 L 130 170 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 480px; margin-left: 16px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 140px; margin-left: 11px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
-                                <div style="text-align: justify;">
-                                    <span style="background-color: initial;">
-                                        把
-                                    </span>
-                                    <font color="#000000" style="background-color: initial;">
-                                        所有库存记录写入文档
-                                    </font>
-                                </div>
+                                <font color="#000000">
+                                    输入文件名
+                                </font>
                             </div>
                         </div>
                     </div>
                 </foreignObject>
-                <text x="85" y="484" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
-                    把所有库存记录写入文档
+                <text x="80" y="144" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入文件名
                 </text>
             </switch>
         </g>
-        <path d="M 155 480 L 166.06 474.47 Q 175 470 175 480 L 175 485 Q 175 490 166.32 489.04 L 157.64 488.07" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 152.43 487.49 L 159.77 484.79 L 157.64 488.07 L 159 491.74 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 85 620 L 85 643.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 85 648.88 L 81.5 641.88 L 85 643.63 L 88.5 641.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <rect x="10" y="550" width="150" height="70" rx="10.5" ry="10.5" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 80 270 L 80 303.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 308.88 L 76.5 301.88 L 80 303.63 L 83.5 301.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="20" y="210" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 585px; margin-left: 11px;">
-                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 240px; margin-left: 21px;">
+                        <div data-drawio-colors="color: #000000; " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
-                                <font color="#000000" style="font-size: 12px;">
-                                    关闭文件
-                                </font>
+                                打开文件夹
                             </div>
                         </div>
                     </div>
                 </foreignObject>
-                <text x="85" y="589" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
-                    关闭文件
+                <text x="80" y="244" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打开文件夹
                 </text>
             </switch>
         </g>
-        <path d="M 283.61 440 L 288.97 387.95 Q 290 378 280 377.97 L 164.33 377.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 159.08 377.61 L 166.09 374.13 L 164.33 377.63 L 166.07 381.13 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 280 510 L 280 630 Q 280 640 270 640 L 86.37 640" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 81.12 640 L 88.12 636.5 L 86.37 640 L 88.12 643.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 270 510 L 220 510 Q 210 510 212.75 500.38 L 227.25 449.62 Q 230 440 240 440 L 340 440 Q 350 440 347.25 449.62 L 332.75 500.38 Q 330 510 320 510 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 10 420 L 150 420 L 150 488 Q 115 466.4 80 488 Q 45 509.6 10 488 L 10 432 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 475px; margin-left: 211px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 448px; margin-left: 11px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                 <font color="#000000">
-                                    提示打开文件失败
+                                    把所有库存记录写入文件
                                 </font>
                             </div>
                         </div>
                     </div>
                 </foreignObject>
-                <text x="280" y="479" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
-                    提示打开文件失败
+                <text x="80" y="452" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    把所有库存记录写入文件
                 </text>
             </switch>
         </g>
-        <ellipse cx="85" cy="685" rx="75" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
     </g>
     <switch>
         <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
diff --git a/pictures/read.drawio.svg b/pictures/read.drawio.svg
new file mode 100644
index 0000000..1ef4a42
--- /dev/null
+++ b/pictures/read.drawio.svg
@@ -0,0 +1,144 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="351px" height="671px" viewBox="-0.5 -0.5 351 671" content="&lt;mxfile&gt;&lt;diagram id=&quot;6bK-31pJimxJY320Gb6T&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 85 70 L 85 83.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 88.88 L 81.5 81.88 L 85 83.63 L 88.5 81.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="85" cy="35" rx="75" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 35px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    read_data
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 85 160 L 85 181.88" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 188.88 L 82.67 181.88 L 87.33 181.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 85 250 L 85 271.88" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 278.88 L 82.67 271.88 L 87.33 271.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 250 L 20 250 Q 10 250 13.16 240.51 L 26.84 199.49 Q 30 190 40 190 L 150 190 Q 160 190 156.84 199.49 L 143.16 240.51 Q 140 250 130 250 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 220px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    打开文件
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="224" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打开文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 170 320 L 270 320 Q 280 320 280 330 L 280 371.88" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 280 378.88 L 277.67 371.88 L 282.33 371.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 85 360 L 85 591.88" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 598.88 L 82.67 591.88 L 87.33 591.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 42.5 300 L 75.95 284.26 Q 85 280 94.05 284.26 L 160.95 315.74 Q 170 320 160.95 324.26 L 94.05 355.74 Q 85 360 75.95 355.74 L 9.05 324.26 Q 0 320 9.05 315.74 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; height: 1px; padding-top: 320px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    文件为空？
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="324" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    文件为空？
+                </text>
+            </switch>
+        </g>
+        <path d="M 280 440 L 280 471.88" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 280 478.88 L 277.67 471.88 L 282.33 471.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 270 440 L 220 440 Q 210 440 213.16 430.51 L 226.84 389.49 Q 230 380 240 380 L 340 380 Q 350 380 346.84 389.49 L 333.16 430.51 Q 330 440 320 440 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 410px; margin-left: 211px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    读取文件
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="280" y="414" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    读取文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 280 540 L 280 570 Q 280 580 270 580 L 88.12 580" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 81.12 580 L 88.12 577.67 L 88.12 582.33 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 270 540 L 220 540 Q 210 540 213.16 530.51 L 226.84 489.49 Q 230 480 240 480 L 340 480 Q 350 480 346.84 489.49 L 333.16 530.51 Q 330 540 320 540 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 510px; margin-left: 211px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    显示数据，记录
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="280" y="514" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示数据，记录
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="85" cy="635" rx="70" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 85 150 L 85 183.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 85 188.88 L 81.5 181.88 L 85 183.63 L 88.5 181.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 10 150 L 30 90 L 160 90 L 140 150 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 120px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font color="#000000">
+                                    输入文件名
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="124" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入文件名
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From 016902f583a53d148bf443db9d0bafd7742bc629 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:14:08 +0800
Subject: [PATCH 37/65] 1

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index b60fcfa..de559bc 100644
--- a/README.md
+++ b/README.md
@@ -352,9 +352,11 @@ Step 4: 将所有库存记录写入文件
 Step 5: 关闭文件
 
 ![](pictures/data.drawio.svg)
+
 #### make_chart
 
 Step 1: 读取文件
 Step 2: 显示图表
 
-![](pictures/make_chart.drawio.svg)
\ No newline at end of file
+![](pictures/make_chart.drawio.svg)
+

From 97652a292de652e725da30ac7e1e2f0d29639af6 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:15:28 +0800
Subject: [PATCH 38/65] confirm

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index de559bc..71898dc 100644
--- a/README.md
+++ b/README.md
@@ -360,3 +360,9 @@ Step 2: 显示图表
 
 ![](pictures/make_chart.drawio.svg)
 
+#### confirm
+
+Step 1: 输出 确定要退出吗
+Step 2: if 确认 then 退出
+
+![](pictures/confirm.drawio.svg)
\ No newline at end of file

From 3e3b6c0b5327c1e2dbc401b2712e6798ea48b992 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:17:06 +0800
Subject: [PATCH 39/65] ykh

---
 pictures/query_data.drawio.svg | 143 +++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 pictures/query_data.drawio.svg

diff --git a/pictures/query_data.drawio.svg b/pictures/query_data.drawio.svg
new file mode 100644
index 0000000..fa4a66d
--- /dev/null
+++ b/pictures/query_data.drawio.svg
@@ -0,0 +1,143 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="501px" height="621px" viewBox="-0.5 -0.5 501 621" content="&lt;mxfile&gt;&lt;diagram id=&quot;EM7BMO-g3w7p9Cm9khwN&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 90 70 L 90 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 108.88 L 86.5 101.88 L 90 103.63 L 93.5 101.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="90" cy="35" rx="60" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 35px; margin-left: 31px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 160 L 90 193.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 198.88 L 86.5 191.88 L 90 193.63 L 93.5 191.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 30 160 L 50 110 L 150 110 L 130 160 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 135px; margin-left: 31px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="139" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学号
+                </text>
+            </switch>
+        </g>
+        <path d="M 180 240 L 420 240 Q 430 240 430 250 L 430 353.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 430 358.88 L 426.5 351.88 L 430 353.63 L 433.5 351.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 240px; margin-left: 370px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Label
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="370" y="243" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Label
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 280 L 90 353.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 358.88 L 86.5 351.88 L 90 353.63 L 93.5 351.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 200 L 180 240 L 90 280 L 0 240 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 240px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学号存在?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="244" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学号存在?
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 420 L 90 553.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 558.88 L 86.5 551.88 L 90 553.63 L 93.5 551.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 20 420 L 40 360 L 160 360 L 140 420 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 390px; margin-left: 21px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                显示：学号不存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="394" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示：学号不存在
+                </text>
+            </switch>
+        </g>
+        <path d="M 430 420 L 430 490 Q 430 500 420 500 L 96.37 500" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 91.12 500 L 98.12 496.5 L 96.37 500 L 98.12 503.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 501px; margin-left: 276px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Label
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="276" y="504" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    Label
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 420 L 380 360 L 500 360 L 480 420 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 390px; margin-left: 361px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输出姓名学号成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="430" y="394" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输出姓名学号成绩
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="90" cy="590" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From 02d627a5eb34d7043058c6f8f89f9abc5797e258 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 15:19:23 +0800
Subject: [PATCH 40/65] save

---
 pictures/data.drawio.svg | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/pictures/data.drawio.svg b/pictures/data.drawio.svg
index ae0dab7..403fb87 100644
--- a/pictures/data.drawio.svg
+++ b/pictures/data.drawio.svg
@@ -1,4 +1,4 @@
-<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="701px" viewBox="-0.5 -0.5 341 701" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="701px" viewBox="-0.5 -0.5 341 701" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
     <defs/>
     <g>
         <path d="M 80 70 L 80 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
@@ -24,8 +24,6 @@
         </g>
         <path d="M 78.41 170 L 77.14 193.65" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
         <path d="M 76.86 198.89 L 73.74 191.72 L 77.14 193.65 L 80.73 192.09 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 75 290 L 76.19 305.52" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 76.6 310.75 L 72.57 304.04 L 76.19 305.52 L 79.55 303.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <path d="M 80 400 L 80 413.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
         <path d="M 80 418.88 L 76.5 411.88 L 80 413.63 L 83.5 411.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
         <path d="M 40 332.5 L 71.28 314.9 Q 80 310 88.72 314.9 L 151.28 350.1 Q 160 355 151.28 359.9 L 88.72 395.1 Q 80 400 71.28 395.1 L 8.72 359.9 Q 0 355 8.72 350.1 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>

From bb86b9e28701ada92cc5c84868391366306a8e11 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:20:22 +0800
Subject: [PATCH 41/65] ykh

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index a135774..d13a869 100644
--- a/README.md
+++ b/README.md
@@ -360,6 +360,13 @@ Step 2: 显示图表
 
 ![](pictures/make_chart.drawio.svg)
 
+#### query_data
+
+Step 1: 输入学生学号
+Step 2: if学号不存在 then 提示学生不存在并结束 
+Step 3: else 学号存在 then 输出学号、姓名、成绩 
+
+![](pictures/query_data.drawio.svg)
 
 #### confirm
 

From 59101191ab155c5ac76a73c6725b47cb9912bb73 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 15:21:49 +0800
Subject: [PATCH 42/65] save

---
 README.md                                     | 2 +-
 pictures/{data.drawio.svg => save.drawio.svg} | 0
 2 files changed, 1 insertion(+), 1 deletion(-)
 rename pictures/{data.drawio.svg => save.drawio.svg} (100%)

diff --git a/README.md b/README.md
index a135774..d15842c 100644
--- a/README.md
+++ b/README.md
@@ -351,7 +351,7 @@ Step 3: if 打开文件失败 then 提示打开文件失败并结束
 Step 4: 将所有库存记录写入文件
 Step 5: 关闭文件
 
-![](pictures/data.drawio.svg)
+![](pictures/save.drawio.svg)
 
 #### make_chart
 
diff --git a/pictures/data.drawio.svg b/pictures/save.drawio.svg
similarity index 100%
rename from pictures/data.drawio.svg
rename to pictures/save.drawio.svg

From bc4710398c1b30cf5274ad99f12857efeb035589 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:23:21 +0800
Subject: [PATCH 43/65] ykh

---
 README.md | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index d13a869..7dfbb7d 100644
--- a/README.md
+++ b/README.md
@@ -353,13 +353,6 @@ Step 5: 关闭文件
 
 ![](pictures/data.drawio.svg)
 
-#### make_chart
-
-Step 1: 读取文件
-Step 2: 显示图表
-
-![](pictures/make_chart.drawio.svg)
-
 #### query_data
 
 Step 1: 输入学生学号
@@ -368,6 +361,14 @@ Step 3: else 学号存在 then 输出学号、姓名、成绩
 
 ![](pictures/query_data.drawio.svg)
 
+#### make_chart
+
+Step 1: 读取文件
+Step 2: 显示图表
+
+![](pictures/make_chart.drawio.svg)
+
+
 #### confirm
 
 Step 1: 输出 确定要退出吗

From 398b7eb014b4f7a26283e2a01af46cc2eefd9fbb Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 15:23:25 +0800
Subject: [PATCH 44/65] save

---
 README.md                                          | 2 +-
 pictures/{save.drawio.svg => save_data.drawio.svg} | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)
 rename pictures/{save.drawio.svg => save_data.drawio.svg} (88%)

diff --git a/README.md b/README.md
index d491cac..4ee21e5 100644
--- a/README.md
+++ b/README.md
@@ -351,7 +351,7 @@ Step 3: if 打开文件失败 then 提示打开文件失败并结束
 Step 4: 将所有库存记录写入文件
 Step 5: 关闭文件
 
-![](pictures/save.drawio.svg)
+![](pictures/save_data.drawio.svg)
 
 #### make_chart
 
diff --git a/pictures/save.drawio.svg b/pictures/save_data.drawio.svg
similarity index 88%
rename from pictures/save.drawio.svg
rename to pictures/save_data.drawio.svg
index 403fb87..47de788 100644
--- a/pictures/save.drawio.svg
+++ b/pictures/save_data.drawio.svg
@@ -1,4 +1,4 @@
-<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="701px" viewBox="-0.5 -0.5 341 701" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;3Vlfk6I4EP80eTwLCAnJIzq4+3BXtVXzcHtPV4xklDo0bsRR79NfB4ISQAcVZ2dvZmpMmiZJ//t1d0R4stx/UfF68YdMRIY8J9kj/IQ8jzIf/mvCoSQQikvCXKVJSXJPhOf0X2GIjqFu00RsLMZcyixP1zZxJlcrMcstWqyU3NlsrzKzd13Hc9EiPM/irE39M03yRUllxDnRv4p0vqh2dh3zZBlXzIawWcSJ3NVIOEJ4oqTMy9FyPxGZ1l2ll/K96Zmnx4Mpscr7vIDNOd7ibGuEMwfLD5W0IgHhzXQlV/AxXuTLDGYuDNs7mkNs5FbNzBJm0TxWc2G4PF7S9Oq198wxvwi5FLk6AIMSWZynb7bqY2PB+ZHvJCQMjJzdMnsdItMMjjV+lSCDdptMquIJ/bHVlgAhsVP81El0rj838Zv4O4nzuFoEti/XKZ+31Zll4Kdai7tFmovndVxoaQeRYmv2Nc2yyfEoeFr86B1zJf8RtSfmaBds8SZULvYX1by3HcJEJjPT3cnNXWpoi5qLB879duH3uuJ5xWiDXKWw4bzSvPpNpoVvVUZw2Mh3+PGXMUvtHmnoswwms0g9nlvr0lHAOeGU4MChlHJ7XeaMHEAjRkmAMfY4tbcpA7S1TWG5o/C9jInphwCLW8F/DVkw+VnIUp1mIGhBEUWMI45RRNB4giAYgQI2YwGKfDQeozEteBjijuZhIeJTFE01Mwx6ApJayOXLdvMIQFJyu0pEYsVnlTEv2vhmwMK8J2LxARDL/UyQVQ8Bl30UjBFL+4T1w60bAMUNrlSt2Kf599r4Lxg7I2JmT1oCp5oczORXyiBBQ/X+rSkjcEfYJQHjfoChNHdpY91gpMna1h7FlRmGzxie/9hgMm2E691iTSvnsHbAefin5Rz2Xs456a9KMPrBb5tCHyEwuN56X6adYwK6NlFB7oEUBYkK0lWAwqeORNU3G1kp4xcokanbkXHIg2rkq2MCxFSH7wX0cUIrgsFCKLkN4QSHxexQn30TKoWDCtULJAcLs6pFtvLaY8A1VCo+1BjWGs4257EXu7YL+Jg1jFiueDMUks+JfJVJHl9W2PoNnEbonMk6V9vxzD6D2bHrduXOfmBa1PqAsYCrYb8OgRTMLooYGvsoJH2heLOI13oIXhFnmcjkXMVLYFzXAMF6VkOK95F7L6qbvSF6iwFwvQnsxOkAdv9RwI57VD+PuzkaXJkNXQYfmSRx1w3fVXh6H0oOfrN5BiUbWajV0g5Ym3c1uvcAGSBRZGALCkeApE7YAoHY0/8DrQYIKd82t9t109EFT3SIkOrqMm64zmvExLuxhE1T2C4CP6C1wh0d6RUJl7c0dF1vcwaDLtR6Z7xyAN8jZ6Cm7nveo3yPDF9FhfqvtKUx4USPtVFDY11oYjnTSBVGaFxcr46BQgrIAn5+CbuuhKxEzrbLwjjvOcVL6UG/v3zqO1n/xkKqeXvYw1tgevq2tMxsp6+ccfQf&lt;/diagram&gt;&lt;/mxfile&gt;">
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="701px" viewBox="-0.5 -0.5 341 701" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
     <defs/>
     <g>
         <path d="M 80 70 L 80 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
@@ -22,8 +22,6 @@
                 </text>
             </switch>
         </g>
-        <path d="M 78.41 170 L 77.14 193.65" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 76.86 198.89 L 73.74 191.72 L 77.14 193.65 L 80.73 192.09 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <path d="M 80 400 L 80 413.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
         <path d="M 80 418.88 L 76.5 411.88 L 80 413.63 L 83.5 411.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
         <path d="M 40 332.5 L 71.28 314.9 Q 80 310 88.72 314.9 L 151.28 350.1 Q 160 355 151.28 359.9 L 88.72 395.1 Q 80 400 71.28 395.1 L 8.72 359.9 Q 0 355 8.72 350.1 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>

From 162a3eddb4e3531179e27d8d6e4187f93097a7e1 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 15:26:04 +0800
Subject: [PATCH 45/65] read

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index ae57e64..53c82fc 100644
--- a/README.md
+++ b/README.md
@@ -361,6 +361,16 @@ Step 3: else 学号存在 then 输出学号、姓名、成绩
 
 ![](pictures/query_data.drawio.svg)
 
+#### read_data
+
+Step 1: 输入文件名
+Step 2: 打开文件
+Step 3: if 文件为空 then 结束
+Step 4: else 读取文件
+Step 5: 提示读取并记录
+
+![](pictures/read.drawio.svg)
+
 #### make_chart
 
 Step 1: 读取文件

From 8ebd13b35152edefc47cef2a63ef055836749a8e Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:28:32 +0800
Subject: [PATCH 46/65] save

---
 pictures/save_data.drawio.svg | 36 +++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/pictures/save_data.drawio.svg b/pictures/save_data.drawio.svg
index 47de788..9028fcf 100644
--- a/pictures/save_data.drawio.svg
+++ b/pictures/save_data.drawio.svg
@@ -1,4 +1,4 @@
-<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="701px" viewBox="-0.5 -0.5 341 701" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="751px" viewBox="-0.5 -0.5 341 751" content="&lt;mxfile&gt;&lt;diagram id=&quot;upyrMhvOQVLzjFjaz9En&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
     <defs/>
     <g>
         <path d="M 80 70 L 80 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
@@ -43,17 +43,13 @@
                 </text>
             </switch>
         </g>
-        <path d="M 75 500 L 75 523.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 75 528.88 L 71.5 521.88 L 75 523.63 L 78.5 521.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <path d="M 145 460 L 144.16 461.67" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
         <path d="M 141.82 466.37 L 141.82 458.54 L 144.16 461.67 L 148.08 461.67 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 75 600 L 75 623.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 75 628.88 L 71.5 621.88 L 75 623.63 L 78.5 621.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <rect x="0" y="530" width="150" height="70" rx="10.5" ry="10.5" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <rect x="0" y="540" width="150" height="70" rx="10.5" ry="10.5" fill="#ffffff" stroke="#000000" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 565px; margin-left: 1px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 575px; margin-left: 1px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                 <font color="#000000" style="font-size: 12px;">
@@ -63,20 +59,16 @@
                         </div>
                     </div>
                 </foreignObject>
-                <text x="75" y="569" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                <text x="75" y="579" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
                     关闭文件
                 </text>
             </switch>
         </g>
-        <path d="M 273.61 420 L 278.97 367.95 Q 280 358 270 357.97 L 159.33 357.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 154.08 357.61 L 161.09 354.13 L 159.33 357.63 L 161.07 361.13 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 270 490 L 270 610 Q 270 620 260 620 L 76.37 620" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 71.12 620 L 78.12 616.5 L 76.37 620 L 78.12 623.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
-        <path d="M 260 490 L 210 490 Q 200 490 202.75 480.38 L 217.25 429.62 Q 220 420 230 420 L 330 420 Q 340 420 337.25 429.62 L 322.75 480.38 Q 320 490 310 490 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 260 590 L 210 590 Q 200 590 202.75 580.38 L 217.25 529.62 Q 220 520 230 520 L 330 520 Q 340 520 337.25 529.62 L 322.75 580.38 Q 320 590 310 590 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
                 <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
-                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 455px; margin-left: 201px;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 555px; margin-left: 201px;">
                         <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                             <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                 <font color="#000000">
@@ -86,12 +78,12 @@
                         </div>
                     </div>
                 </foreignObject>
-                <text x="270" y="459" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                <text x="270" y="559" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
                     提示打开文件失败
                 </text>
             </switch>
         </g>
-        <ellipse cx="75" cy="665" rx="75" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <ellipse cx="75" cy="715" rx="75" ry="35" fill="#ffffff" stroke="#000000" pointer-events="all"/>
         <path d="M 80 170 L 80 203.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
         <path d="M 80 208.88 L 76.5 201.88 L 80 203.63 L 83.5 201.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
         <path d="M 10 170 L 30 110 L 150 110 L 130 170 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
@@ -113,8 +105,6 @@
                 </text>
             </switch>
         </g>
-        <path d="M 80 270 L 80 303.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
-        <path d="M 80 308.88 L 76.5 301.88 L 80 303.63 L 83.5 301.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
         <rect x="20" y="210" width="120" height="60" rx="9" ry="9" fill="#ffffff" stroke="#000000" pointer-events="all"/>
         <g transform="translate(-0.5 -0.5)">
             <switch>
@@ -151,6 +141,16 @@
                 </text>
             </switch>
         </g>
+        <path d="M 75.24 491.36 L 75.03 533.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75.01 538.88 L 71.54 531.86 L 75.03 533.63 L 78.54 531.9 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 270 590 L 270 640 Q 270 650 260 650 L 81.37 650" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 76.12 650 L 83.12 646.5 L 81.37 650 L 83.12 653.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 150 355 L 260 355 Q 270 355 270 365 L 270 513.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 270 518.88 L 266.5 511.88 L 270 513.63 L 273.5 511.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 270 L 80 303.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 308.88 L 76.5 301.88 L 80 303.63 L 83.5 301.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 610 L 75 673.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 678.88 L 71.5 671.88 L 75 673.63 L 78.5 671.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
     </g>
     <switch>
         <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>

From 37feb417beac7ccb84257a255834557b858a1539 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:30:27 +0800
Subject: [PATCH 47/65] 1

---
 README.md | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 53c82fc..d0dc332 100644
--- a/README.md
+++ b/README.md
@@ -343,6 +343,18 @@ Step 2.12: if c == CMD_QUIT then 退出
 
 ![](pictures/main_chart.drawio.svg)
 
+
+#### read_data
+
+Step 1: 输入文件名
+Step 2: 打开文件
+Step 3: if 文件为空 then 结束
+Step 4: else 读取文件
+Step 5: 提示读取并记录
+
+![](pictures/read.drawio.svg)
+
+
 #### save_data
 
 Step 1: 输入文件名
@@ -361,15 +373,6 @@ Step 3: else 学号存在 then 输出学号、姓名、成绩
 
 ![](pictures/query_data.drawio.svg)
 
-#### read_data
-
-Step 1: 输入文件名
-Step 2: 打开文件
-Step 3: if 文件为空 then 结束
-Step 4: else 读取文件
-Step 5: 提示读取并记录
-
-![](pictures/read.drawio.svg)
 
 #### make_chart
 

From 4d79672080509fed73dde7bb138b3a864640500f Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 15:32:29 +0800
Subject: [PATCH 48/65] delete

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 53c82fc..3e0b5df 100644
--- a/README.md
+++ b/README.md
@@ -379,6 +379,15 @@ Step 2: 显示图表
 ![](pictures/make_chart.drawio.svg)
 
 
+#### delete_data
+
+Step 1: 输入学号
+Step 2: if 不存在 then 提示学生不存在并结束
+Step 3: else 删除学生信息
+Step 4: 提示删除成功
+![](pictures/delete.drawio.svg)
+
+
 #### confirm
 
 Step 1: 输出 确定要退出吗

From fa6a49a57690acd94e0e7c46fd2bf4af23bad870 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 15:32:44 +0800
Subject: [PATCH 49/65] delete

---
 pictures/delete.drawio.svg | 129 +++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 pictures/delete.drawio.svg

diff --git a/pictures/delete.drawio.svg b/pictures/delete.drawio.svg
new file mode 100644
index 0000000..dc8fc3d
--- /dev/null
+++ b/pictures/delete.drawio.svg
@@ -0,0 +1,129 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="621px" height="841px" viewBox="-0.5 -0.5 621 841" content="&lt;mxfile&gt;&lt;diagram id=&quot;qF64KuNW_ocn6PQy4_HQ&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <ellipse cx="70" cy="40" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 40px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                delete_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="70" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    delete_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 10 210 L 30 150 L 130 150 L 110 210 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 180px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="70" y="184" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学号
+                </text>
+            </switch>
+        </g>
+        <path d="M 65 360 L 65 503.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 65 508.88 L 61.5 501.88 L 65 503.63 L 68.5 501.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 130 320 L 569 320 Q 579 320 578.96 330 L 578.86 354.65" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 578.84 359.9 L 575.37 352.89 L 578.86 354.65 L 582.37 352.92 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 65 280 L 130 320 L 65 360 L 0 320 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 128px; height: 1px; padding-top: 320px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学号存在？
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="324" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学号存在？
+                </text>
+            </switch>
+        </g>
+        <path d="M 65 570 L 65 753.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 65 758.88 L 61.5 751.88 L 65 753.63 L 68.5 751.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 5 570 L 25 510 L 125 510 L 105 570 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 540px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学号不存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="544" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学号不存在
+                </text>
+            </switch>
+        </g>
+        <path d="M 500 420 L 520 360 L 620 360 L 600 420 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 390px; margin-left: 501px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                删除学生信息
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="560" y="394" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    删除学生信息
+                </text>
+            </switch>
+        </g>
+        <path d="M 560 520 L 560 710 Q 560 720 550 720 L 76.37 720" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 71.12 720 L 78.12 716.5 L 76.37 720 L 78.12 723.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 500 520 L 520 460 L 620 460 L 600 520 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 490px; margin-left: 501px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                已更新
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="560" y="494" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    已更新
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="65" cy="800" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 70 80 L 70 143.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 70 148.88 L 66.5 141.88 L 70 143.63 L 73.5 141.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 70 210 L 70 283.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 70 288.88 L 66.5 281.88 L 70 283.63 L 73.5 281.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 590 460 L 590 420" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From dbea8e4559cc7d9a91341f8aeb0c8f0be9527bb6 Mon Sep 17 00:00:00 2001
From: huyunan <3313842905@qq.com>
Date: Sun, 21 May 2023 15:33:52 +0800
Subject: [PATCH 50/65] print

---
 README.md                 |  7 ++++++
 pictures/print.drawio.svg | 52 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 pictures/print.drawio.svg

diff --git a/README.md b/README.md
index 53c82fc..5e0a801 100644
--- a/README.md
+++ b/README.md
@@ -361,6 +361,13 @@ Step 3: else 学号存在 then 输出学号、姓名、成绩
 
 ![](pictures/query_data.drawio.svg)
 
+
+#### print_data
+
+Step 1: 输出学号、姓名、成绩
+
+![](pictures/print.drawio.svg)
+
 #### read_data
 
 Step 1: 输入文件名
diff --git a/pictures/print.drawio.svg b/pictures/print.drawio.svg
new file mode 100644
index 0000000..88d7442
--- /dev/null
+++ b/pictures/print.drawio.svg
@@ -0,0 +1,52 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="151px" height="301px" viewBox="-0.5 -0.5 151 301" content="&lt;mxfile&gt;&lt;diagram id=&quot;LNEEokx9NuSkeupJaUJv&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 75 70 L 75 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 108.88 L 71.5 101.88 L 75 103.63 L 78.5 101.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="75" cy="35" rx="65" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 128px; height: 1px; padding-top: 35px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                print_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="75" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    print_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 75 170 L 75 213.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 218.88 L 71.5 211.88 L 75 213.63 L 78.5 211.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 170 L 20 110 L 150 110 L 130 170 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 140px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输出学号姓名成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="75" y="144" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输出学号姓名成绩
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="75" cy="260" rx="70" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From 5494469c66f49934fc2791c21cc03647e6ba7e31 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:36:53 +0800
Subject: [PATCH 51/65] 12

---
 README.md | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/README.md b/README.md
index b278375..8c275a6 100644
--- a/README.md
+++ b/README.md
@@ -299,10 +299,9 @@ a: No such file or directory
 数据处理模块包括读取数据（read_data）、保存数据（save_data）、打印数据（print_data）、查询数据（query_data）、添加数据（add_data）、更新数据（update_data）、删除数据（delete_data）、数据排序（sort_data）和生成图表（make_chart）等子模块。其中查询、添加、更新和删除数据还会用到根据编号查询数据的方法（find）。
 
 上述各模块通过主程序（main）进行调用，系统模块图如下。
-![](pictures/xitongmoban.drawio.svg)
 
+![](pictures/xitongmoban.drawio.svg)
 
-## 详细设计
 
 
 各模块的主要功能如下：
@@ -373,15 +372,6 @@ Step 3: else 学号存在 then 输出学号、姓名、成绩
 
 ![](pictures/query_data.drawio.svg)
 
-
-#### make_chart
-
-Step 1: 读取文件
-Step 2: 显示图表
-
-![](pictures/make_chart.drawio.svg)
-
-
 #### delete_data
 
 Step 1: 输入学号
@@ -390,6 +380,13 @@ Step 3: else 删除学生信息
 Step 4: 提示删除成功
 ![](pictures/delete.drawio.svg)
 
+#### make_chart
+
+Step 1: 读取文件
+Step 2: 显示图表
+
+![](pictures/make_chart.drawio.svg)
+
 
 #### confirm
 

From 9a277f26c2e85861c4fca4184d6849b9864d4eef Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 15:39:12 +0800
Subject: [PATCH 52/65] sort

---
 pictures/sort.drawio.svg | 90 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 pictures/sort.drawio.svg

diff --git a/pictures/sort.drawio.svg b/pictures/sort.drawio.svg
new file mode 100644
index 0000000..49e9efd
--- /dev/null
+++ b/pictures/sort.drawio.svg
@@ -0,0 +1,90 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="581px" viewBox="-0.5 -0.5 121 581" content="&lt;mxfile&gt;&lt;diagram id=&quot;N-I4I6gAUj6rZipbi3T4&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 60 80 L 60 133.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 138.88 L 56.5 131.88 L 60 133.63 L 63.5 131.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="60" cy="40" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 40px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                sort_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    sort_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 200 L 60 253.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 258.88 L 56.5 251.88 L 60 253.63 L 63.5 251.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 200 L 20 140 L 120 140 L 100 200 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 170px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                读取文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="174" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    读取文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 320 L 60 373.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 378.88 L 56.5 371.88 L 60 373.63 L 63.5 371.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 320 L 20 260 L 120 260 L 100 320 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 290px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                排序
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    排序
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 440 L 60 493.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 498.88 L 56.5 491.88 L 60 493.63 L 63.5 491.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 440 L 20 380 L 120 380 L 100 440 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 410px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                提示排序已完成
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="414" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示排序已完成
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="60" cy="540" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From 84aafedb31f779bf29ab88f9c5e1274db4ba78fc Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 15:39:20 +0800
Subject: [PATCH 53/65] sort

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index b278375..a201841 100644
--- a/README.md
+++ b/README.md
@@ -391,6 +391,13 @@ Step 4: 提示删除成功
 ![](pictures/delete.drawio.svg)
 
 
+sort_data
+Step 1: 读取文件
+Step 2: 进行排序
+Step 3: 提示排序已完成
+![](pictures/sort.drawio.svg)
+
+
 #### confirm
 
 Step 1: 输出 确定要退出吗

From 353b48d18a7b3e44fc217060d344286f76231ce5 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:40:16 +0800
Subject: [PATCH 54/65] ykh

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index b278375..bc7da43 100644
--- a/README.md
+++ b/README.md
@@ -373,6 +373,16 @@ Step 3: else 学号存在 then 输出学号、姓名、成绩
 
 ![](pictures/query_data.drawio.svg)
 
+#### add_data
+
+Step 1: if 数据库满 then 提示数据库满并结束
+Step 2: 输入学号
+Step 3: if 学生已存在 then 提示学生已存在并结束
+Step 4: 输入学生名字和成绩
+Step 5: 添加学生到数据
+Step 6: 提示添加成功
+![](pictures/add_data.drawio.svg)
+
 
 #### make_chart
 

From 76e360be7d0fffbffcedb802227f0fe41a59be84 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 15:40:30 +0800
Subject: [PATCH 55/65] sort

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a201841..4bd8fec 100644
--- a/README.md
+++ b/README.md
@@ -391,7 +391,7 @@ Step 4: 提示删除成功
 ![](pictures/delete.drawio.svg)
 
 
-sort_data
+#### sort_data
 Step 1: 读取文件
 Step 2: 进行排序
 Step 3: 提示排序已完成

From f90163ca9fd953de762b341ab919243fd5a91040 Mon Sep 17 00:00:00 2001
From: bo yu <1131672768@qq.com>
Date: Sun, 21 May 2023 15:42:34 +0800
Subject: [PATCH 56/65] sort

---
 README.md | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 5907161..7c57884 100644
--- a/README.md
+++ b/README.md
@@ -388,13 +388,6 @@ Step 3: else 删除学生信息
 Step 4: 提示删除成功
 ![](pictures/delete.drawio.svg)
 
-#### make_chart
-
-Step 1: 读取文件
-Step 2: 显示图表
-
-![](pictures/make_chart.drawio.svg)
-
 
 #### sort_data
 Step 1: 读取文件
@@ -403,6 +396,14 @@ Step 3: 提示排序已完成
 ![](pictures/sort.drawio.svg)
 
 
+#### make_chart
+
+Step 1: 读取文件
+Step 2: 显示图表
+
+![](pictures/make_chart.drawio.svg)
+
+
 #### confirm
 
 Step 1: 输出 确定要退出吗

From d92c83346d59d338121be2abfc28605aa06adee1 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:43:04 +0800
Subject: [PATCH 57/65] ykh

---
 pictures/add_data.drawio.svg | 259 +++++++++++++++++++++++++++++++++++
 1 file changed, 259 insertions(+)
 create mode 100644 pictures/add_data.drawio.svg

diff --git a/pictures/add_data.drawio.svg b/pictures/add_data.drawio.svg
new file mode 100644
index 0000000..d688a9e
--- /dev/null
+++ b/pictures/add_data.drawio.svg
@@ -0,0 +1,259 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="771px" height="821px" viewBox="-0.5 -0.5 771 821" content="&lt;mxfile&gt;&lt;diagram id=&quot;iDX1ffgfFJTXTWISrrKf&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 90 60 L 90 83.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 88.88 L 86.5 81.88 L 90 83.63 L 93.5 81.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="90" cy="30" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 30px; margin-left: 31px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                add_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="34" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    add_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 150 L 90 193.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 198.88 L 86.5 191.88 L 90 193.63 L 93.5 191.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 170 120 L 380 120 Q 390 120 390 130 L 390 163.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 390 168.88 L 386.5 161.88 L 390 163.63 L 393.5 161.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 90 L 170 120 L 90 150 L 10 120 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 120px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                数据库满？
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="124" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    数据库满？
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 240 L 90 763.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 768.88 L 86.5 761.88 L 90 763.63 L 93.5 761.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 240 L 20 200 L 180 200 L 160 240 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 220px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                显示：数据库满，不能添加
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="224" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示：数据库满，不能添加
+                </text>
+            </switch>
+        </g>
+        <rect x="65" y="155" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 170px; margin-left: 80px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="174" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="275" y="85" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 100px; margin-left: 290px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="290" y="104" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <path d="M 390 220 L 390 253.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 390 258.88 L 386.5 251.88 L 390 253.63 L 393.5 251.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 325 220 L 345 170 L 455 170 L 435 220 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 128px; height: 1px; padding-top: 195px; margin-left: 326px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="390" y="199" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学号
+                </text>
+            </switch>
+        </g>
+        <path d="M 390 340 L 390 383.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 390 388.88 L 386.5 381.88 L 390 383.63 L 393.5 381.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 510 300 L 700 300 Q 710 300 710 310 L 710 373.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 710 378.88 L 706.5 371.88 L 710 373.63 L 713.5 371.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 390 260 L 510 300 L 390 340 L 270 300 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 238px; height: 1px; padding-top: 300px; margin-left: 271px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学号存在？
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="390" y="304" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学号存在？
+                </text>
+            </switch>
+        </g>
+        <path d="M 390 440 L 390 500 Q 390 510 380 510 L 96.37 510" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 91.12 510 L 98.12 506.5 L 96.37 510 L 98.12 513.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 310 440 L 330 390 L 470 390 L 450 440 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 415px; margin-left: 311px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                显示：学号已存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="390" y="419" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示：学号已存在
+                </text>
+            </switch>
+        </g>
+        <rect x="355" y="345" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 360px; margin-left: 370px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="370" y="364" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 710 420 L 710 453.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 710 458.88 L 706.5 451.88 L 710 453.63 L 713.5 451.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 650 420 L 670 380 L 770 380 L 750 420 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 400px; margin-left: 651px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入姓名
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="710" y="404" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入姓名
+                </text>
+            </switch>
+        </g>
+        <path d="M 710 500 L 710 533.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 710 538.88 L 706.5 531.88 L 710 533.63 L 713.5 531.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 650 500 L 670 460 L 770 460 L 750 500 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 480px; margin-left: 651px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="710" y="484" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入成绩
+                </text>
+            </switch>
+        </g>
+        <path d="M 710 580 L 710 603.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 710 608.88 L 706.5 601.88 L 710 603.63 L 713.5 601.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="650" y="540" width="120" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 560px; margin-left: 651px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                添加到学生数据科
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="710" y="564" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    添加到学生数据科
+                </text>
+            </switch>
+        </g>
+        <path d="M 710 650 L 710 690 Q 710 700 700 700 L 96.37 700" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 91.12 700 L 98.12 696.5 L 96.37 700 L 98.12 703.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 650 650 L 670 610 L 770 610 L 750 650 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 630px; margin-left: 651px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                显示：零件已添加
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="710" y="634" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示：零件已添加
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="90" cy="795" rx="60" ry="25" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From f121cc66798ec9cdd56c0ba0f2fb76f26469ce25 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:43:55 +0800
Subject: [PATCH 58/65] ykh

---
 README.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/README.md b/README.md
index bc7da43..01981b9 100644
--- a/README.md
+++ b/README.md
@@ -383,7 +383,6 @@ Step 5: 添加学生到数据
 Step 6: 提示添加成功
 ![](pictures/add_data.drawio.svg)
 
-
 #### make_chart
 
 Step 1: 读取文件

From 1c8303978db382330595fc1c68fb4cae2cf58e95 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:51:33 +0800
Subject: [PATCH 59/65] ykh

---
 README.md                       |   9 +-
 pictures/updata_data.drawio.svg | 164 ++++++++++++++++++++++++++++++++
 2 files changed, 172 insertions(+), 1 deletion(-)
 create mode 100644 pictures/updata_data.drawio.svg

diff --git a/README.md b/README.md
index be780df..2e42cee 100644
--- a/README.md
+++ b/README.md
@@ -388,7 +388,14 @@ Step 1: 输出学号、姓名、成绩
 
 ![](pictures/print.drawio.svg)
 
-#### read_data
+#### update_data
+
+Step 1: 输入学号
+Step 2: if 不存在 then 提示学生不存在并结束
+Step 3: else 输入学号、姓名、成绩
+Step 4: 已更新 
+![](pictures/updata_data.drawio.svg)
+
 #### delete_data
 
 Step 1: 输入学号
diff --git a/pictures/updata_data.drawio.svg b/pictures/updata_data.drawio.svg
new file mode 100644
index 0000000..a6472a4
--- /dev/null
+++ b/pictures/updata_data.drawio.svg
@@ -0,0 +1,164 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="466px" height="691px" viewBox="-0.5 -0.5 466 691" content="&lt;mxfile&gt;&lt;diagram id=&quot;ui3Me32tS_vx9kzB5S0c&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 100 70 L 100 123.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 100 128.88 L 96.5 121.88 L 100 123.63 L 103.5 121.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="100" cy="35" rx="60" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 35px; margin-left: 41px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                updata_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="100" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    updata_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 100 180 L 100 238.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 100 243.88 L 96.5 236.88 L 100 238.63 L 103.5 236.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 40 180 L 60 130 L 160 130 L 140 180 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 155px; margin-left: 41px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="100" y="159" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学号
+                </text>
+            </switch>
+        </g>
+        <path d="M 200 285 L 388 285 Q 398 285 397.93 295 L 397.75 318.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 397.71 323.88 L 394.26 316.86 L 397.75 318.63 L 401.26 316.91 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 100 325 L 100 393.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 100 398.88 L 96.5 391.88 L 100 393.63 L 103.5 391.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 100 245 L 200 285 L 100 325 L 0 285 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 198px; height: 1px; padding-top: 285px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学号存在？
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="100" y="289" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学号存在？
+                </text>
+            </switch>
+        </g>
+        <path d="M 397.5 380 L 397.5 453.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 397.5 458.88 L 394 451.88 L 397.5 453.63 L 401 451.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 330 380 L 350 325 L 465 325 L 445 380 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 133px; height: 1px; padding-top: 353px; margin-left: 331px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输出学号姓名成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="398" y="356" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输出学号姓名成绩
+                </text>
+            </switch>
+        </g>
+        <rect x="295" y="255" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 270px; margin-left: 310px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="310" y="274" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 397.58 515 L 397.97 645 Q 398 655 388 655 L 166.37 655" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 161.12 655 L 168.12 651.5 L 166.37 655 L 168.12 658.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 330 515 L 350 460 L 465 460 L 445 515 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 133px; height: 1px; padding-top: 488px; margin-left: 331px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                已更新
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="398" y="491" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    已更新
+                </text>
+            </switch>
+        </g>
+        <path d="M 100 450 L 100 613.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 100 618.88 L 96.5 611.88 L 100 613.63 L 103.5 611.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 40 450 L 60 400 L 160 400 L 140 450 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 425px; margin-left: 41px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学号不存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="100" y="429" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学号不存在
+                </text>
+            </switch>
+        </g>
+        <rect x="105" y="335" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 350px; margin-left: 120px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="120" y="354" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="100" cy="655" rx="60" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
\ No newline at end of file

From ef309fb94347fa97d3d8b92781ea5a8901fd2fc7 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 15:53:57 +0800
Subject: [PATCH 60/65] over

---
 README.md | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 2e42cee..11a82dc 100644
--- a/README.md
+++ b/README.md
@@ -364,6 +364,12 @@ Step 5: 关闭文件
 
 ![](pictures/save_data.drawio.svg)
 
+#### print_data
+
+Step 1: 输出学号、姓名、成绩
+
+![](pictures/print.drawio.svg)
+
 #### query_data
 
 Step 1: 输入学生学号
@@ -380,13 +386,9 @@ Step 3: if 学生已存在 then 提示学生已存在并结束
 Step 4: 输入学生名字和成绩
 Step 5: 添加学生到数据
 Step 6: 提示添加成功
-![](pictures/add_data.drawio.svg)
 
-#### print_data
-
-Step 1: 输出学号、姓名、成绩
+![](pictures/add_data.drawio.svg)
 
-![](pictures/print.drawio.svg)
 
 #### update_data
 
@@ -394,6 +396,7 @@ Step 1: 输入学号
 Step 2: if 不存在 then 提示学生不存在并结束
 Step 3: else 输入学号、姓名、成绩
 Step 4: 已更新 
+
 ![](pictures/updata_data.drawio.svg)
 
 #### delete_data
@@ -402,6 +405,7 @@ Step 1: 输入学号
 Step 2: if 不存在 then 提示学生不存在并结束
 Step 3: else 删除学生信息
 Step 4: 提示删除成功
+
 ![](pictures/delete.drawio.svg)
 
 
@@ -409,6 +413,7 @@ Step 4: 提示删除成功
 Step 1: 读取文件
 Step 2: 进行排序
 Step 3: 提示排序已完成
+
 ![](pictures/sort.drawio.svg)
 
 

From 8f769292666661e0ecf041105d30ae5706741beb Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:54:04 +0800
Subject: [PATCH 61/65] ykh

---
 README.md | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 2e42cee..4b686ef 100644
--- a/README.md
+++ b/README.md
@@ -364,6 +364,12 @@ Step 5: 关闭文件
 
 ![](pictures/save_data.drawio.svg)
 
+#### print_data
+
+Step 1: 输出学号、姓名、成绩
+
+![](pictures/print.drawio.svg)
+
 #### query_data
 
 Step 1: 输入学生学号
@@ -382,12 +388,6 @@ Step 5: 添加学生到数据
 Step 6: 提示添加成功
 ![](pictures/add_data.drawio.svg)
 
-#### print_data
-
-Step 1: 输出学号、姓名、成绩
-
-![](pictures/print.drawio.svg)
-
 #### update_data
 
 Step 1: 输入学号

From 050eedc687d79adc78ed303978e950f50d80db40 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:55:38 +0800
Subject: [PATCH 62/65] ykh

---
 README.md | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/README.md b/README.md
index bed49b7..b4ab839 100644
--- a/README.md
+++ b/README.md
@@ -389,12 +389,6 @@ Step 6: 提示添加成功
 
 ![](pictures/add_data.drawio.svg)
 
-#### print_data
-
-Step 1: 输出学号、姓名、成绩
-
-![](pictures/print.drawio.svg)
-
 #### update_data
 
 Step 1: 输入学号

From 6c05a2d3e5bb9ead30609a6da17e1ec003bc5b26 Mon Sep 17 00:00:00 2001
From: plebkff6w <1844263540@qq.com>
Date: Sun, 21 May 2023 16:23:21 +0800
Subject: [PATCH 63/65] Delete '.vscode/extensions.json'

---
 .vscode/extensions.json | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 .vscode/extensions.json

diff --git a/.vscode/extensions.json b/.vscode/extensions.json
deleted file mode 100644
index e69de29..0000000

From 79dc6797c2f873c269d3d2088270d85d69448752 Mon Sep 17 00:00:00 2001
From: xiao dong <1844263540@qq.com>
Date: Sun, 21 May 2023 16:33:14 +0800
Subject: [PATCH 64/65] 1

---
 README.md | 433 +-----------------------------------------------------
 1 file changed, 1 insertion(+), 432 deletions(-)

diff --git a/README.md b/README.md
index 11a82dc..65b4fbb 100644
--- a/README.md
+++ b/README.md
@@ -1,433 +1,2 @@
-# 实现学生成绩管理系统
+# text4
 
-2023年5月21日
-
-董函铄 胡煜男 于博 袁楷昊
-
-## 项目简介
-
-本系统是程序设计与问题求解课程设计项目，是为教师提供管理班级成绩的工具，该系统可以实现的对学生的成绩进行增、删、改、查、信息保存和信息导入等基本功能，以及对学生成绩排序和分段的扩展功能，有利于对学生成绩管理。项目采用 C 语言编程实现，在 VS Code 集成开发环境（IDE）中用 GCC 进行编译。系统采用模块化设计，程序结构清晰，采用菜单驱动的命令行界面，操作便捷，能够用 CSV 格式读取和保存数据，通用性强，能够用图表展示数据，直观清楚。
-
-下载地址：https://code.educoder.net/plebkff6w/text4
-
-项目开发过程中采用 Kanban（看板）进行任务管理和分工协作，并使用 Git 对程序代码和文档进行版
-本管理。任务分工情况如下：
-
-|  任务                       |   设计   |  开发    |   测试  |  文档  |
-|---|---|---|---|---|
-|  C1-C3  菜单驱动的用户界面   |  董函铄  |  董函铄  |  胡煜男 |   董函铄  |
-|  C4 添加学生信息及成绩            |   胡煜男  |  胡煜男  | 于博  |  胡煜男  |
-|  C5: 查询学生信息及成绩           |   于博 |  于博  | 袁楷昊  |  于博  |
-|  C6: 打印学生信息及成绩           |   袁楷昊   |  袁楷昊   | 董函铄    |  袁楷昊   |
-|  C7: 修改学生信息及成绩           |  董函铄   |  董函铄  | 于博  |  董函铄  |
-|  C8: 删除学生信息及成绩          |  胡煜男   |  胡煜男  | 袁楷昊  |  胡煜男|
-|  C9: 学生信息及成绩记录排序           |  于博   |  于博  | 董函铄  |  于博 |
-|  C10: 从文件中读取学生信息及成绩记录   |  袁楷昊    |  袁楷昊    | 胡煜男   |   袁楷昊 |
-|  C11: 将学生信息及成绩保存保存到文件   |  董函铄  |  于博  | 胡煜男  |   董函铄 |
-|  C12: 以图表方式显示学生信息及成绩 |  董函铄  |  袁楷昊  | 于博  |   胡煜男 |
-  
-每个成员的工作量（百分比）：
-
-|  董函铄  |  胡煜男  |  于博  | 袁楷昊  |
-|---|---|---|---|
-|    30    |   20    |    30    |   20    |
-  
-## 关于实现学生成绩管理系统
-
-设计一个学生成绩管理系统，要求采用命令行菜单界面进行交互，具备读取、保存、打印、查询、修改、插入、删除和排序等基本功能，能够以表格和图表形式展示数据，采用 CSV 格式保存数据。
-
-系统的功能性需求：
-
-- 数据的读取、保存、打印、查询、修改、插入、删除、排序和图表展示。
-
-系统的非功能性需求：
-
-- 菜单驱动的命令行交互界面。
-
-## 需求分析
-
-分析系统的功能需求和界面需求，编制用户手册如下。
-
-#### C1:启动程序
-
-命令行中执行命令 ./app , 系统启动，显示提示信息，然后显示功能菜单，等待用户输入命令。
-
-```
-学生成绩管理系统启动  
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加 
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出 
-
-请选择：
-```
-
-#### C2：显示命令菜单
-
-```
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：
-```
-
-#### C3: 退出程序
-
-选择菜单命令 `0`，再输入 `y` 确认，则退出程序。
-
-```
-请选择：0
-确定要退出吗？(Y/N): y
-程序退出
-```
-
-#### C4: 添加库存记录
-
-选择菜单命令 `5`，提示输入学号，若该学生不存在，则继续输入学号、姓名、成绩，添加学号，并提示完成；若学号已存在，则提示学号已存在，并结束。
-
-```
-请选择：5
-输入学号：101
-输入姓名：小米
-输入成绩：80
-学生 101 已添加
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：5
-输入学号：101
-学号已存在.
-```
-
-#### C5: 查询学生信息及成绩
-
-选择菜单命令 `4`，提示输入学号，若该学号存在，则输出学号、姓名、成绩；否则提示学生不存在并结束。
-
-```
-请选择：4
-输入学号：101
-学号：101
-名字：小米
-成绩：80
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：4
-输入学号：101
-学号不存在.
-
-```
-
-#### C6: 打印学生信息及成绩
-
-选择菜单命令 `3`，打印
-
-```
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    101 | 小李                            |      80 |
--------------------------------------------------------
-
-```
-
-#### C7: 修改学生信息及成绩
-
-选择菜单命令 `7`，根据提示输入学号，若学号存在，则继续输入学号、姓名、成绩，并修改库存记录；否则，提示学号不存在并结束。
-
-```
-请选择：7
-输入学号：104
-输入姓名：小刘
-输入成绩：96
-学生 104 已更新
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    104 | 小刘                             |      96 |
--------------------------------------------------------
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：7
-输入学号：104
-学生不存在.
-
-```
-#### C8: 删除库存记录
-
-选择菜单命令 `7`，根据提示输入学号，若学号存在，则删除之；否则提示学号不存在并结束。
-
-```
-请选择：7
-输入学号：100
-学号不存在.
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：7
-输学号：101
-学生 101 已删除
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
--------------------------------------------------------
-
-```
-#### C9: 学生信息及成绩排序
-
-选择菜单命令 `8`，对学生按学号从小到大排序。
-
-```
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    101 | 小米                             |      80 |
-|    100 | 小明                             |      70 |
--------------------------------------------------------
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：8
-排序
-排序已完成
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    100 | 小明                             |      70 |
-|    101 | 小米                             |      80 |
--------------------------------------------------------
-
-```
-
-#### C10: 从文件中读取学生信息及成绩
-
-选择菜单命令 `1`，提示输入文件名，若文件存在，则打开文件读取 CSV 格式保存的所有库存记录；否则，若文件不存在，则给出错误信息并结束。
-
-假设文件 `a.csv` 中，以 CSV （Comma-Separated Values）格式保存了如下记录：
-
-```
-103,小红,80
-104,小光,100
-101,小米,80
-102,小明,70
-```
-
-则读取记录的过程如下：
-
-```
-请选择：1
-读取数据
-请输入文件名：a.csv
-读取 4 记录
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：3
--------------------------------------------------------
-| NUMBER | NAME                             | ON HAND |
--------------------------------------------------------
-|    103 | 小红                             |      80 |
-|    104 | 小光                             |     100 |
-|    101 | 小米                             |      80 |
-|    102 | 小明                             |      70 |
--------------------------------------------------------
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-请选择：1
-读取数据
-请输入文件名：a
-a: No such file or directory
-
-```
-#### C11: 将学生信息及成绩保存到文件
-
-选择菜单命令 `2`，提示输入文件名，将所有库存记录以 CSV 格式保存到指定的文件中。
-
-```
-请选择：2
-保存数据
-请输入文件名：b.csv
-保存 4 记录
-
-```
-#### C12: 以图表方式显示学生信息及成绩
-
-选择菜单命令 `9`，以图表方式显示库存记录。
-
-```
-请选择：9
-图表
-    103 : 小红       | ******** (80)
-    104 : 小光        | ************ (100)
-    101 : 小米         | ******************** (80)
-    102 : 小明       | ********** (70)
-
-1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
-6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
-
-```
-
-## 概要设计
-
-系统主要分为用户界面和数据处理两大模块。
-用户界面模块包括系统初始化（init），显示菜单（display_menu），选择菜单命令（make_choice）、确认（confirm）、退出（quit）等子模块。
-数据处理模块包括读取数据（read_data）、保存数据（save_data）、打印数据（print_data）、查询数据（query_data）、添加数据（add_data）、更新数据（update_data）、删除数据（delete_data）、数据排序（sort_data）和生成图表（make_chart）等子模块。其中查询、添加、更新和删除数据还会用到根据编号查询数据的方法（find）。
-
-上述各模块通过主程序（main）进行调用，系统模块图如下。
-
-![](pictures/xitongmoban.drawio.svg)
-
-
-
-各模块的主要功能如下：
-
-#### main
-
-系统主函数模块，显示菜单，根据用户选择的菜单命令，执行相关操作。
-
-#### init
-
-系统初始化。
-
-#### display_menu
-
-显示菜单命令。
-
-## 详细设计
-
-针对概要设计
-
-#### main
-
-Step 1: 初始化
-Step 2: 根据用户选择的命令执行对应的操作
-Step 2.1: 显示菜单
-Step 2.2: 选择菜单命令 c
-Step 2.3: if c == CMD_READ then 读取数据
-Step 2.4: if c == CMD_SAVE then 保存数据
-Step 2.5: if c == CMD_PRINT then 打印数据
-Step 2.6: if c == CMD_QUERY then 查询数据
-Step 2.7: if c == CMD_ADD then 添加数据
-Step 2.8: if c == CMD_UPDATE then 修改数据
-Step 2.9: if c == CMD_DELETE then 删除数据
-Step 2.10: if c == CMD_SORT then 排序数据
-Step 2.11: if c == CMD_MAKE then 显示图表
-Step 2.12: if c == CMD_QUIT then 退出
-
-
-![](pictures/main_chart.drawio.svg)
-
-
-#### read_data
-
-Step 1: 输入文件名
-Step 2: 打开文件
-Step 3: if 文件为空 then 结束
-Step 4: else 读取文件
-Step 5: 提示读取并记录
-
-![](pictures/read.drawio.svg)
-
-
-#### save_data
-
-Step 1: 输入文件名
-Step 2: 打开文件
-Step 3: if 打开文件失败 then 提示打开文件失败并结束
-Step 4: 将所有库存记录写入文件
-Step 5: 关闭文件
-
-![](pictures/save_data.drawio.svg)
-
-#### print_data
-
-Step 1: 输出学号、姓名、成绩
-
-![](pictures/print.drawio.svg)
-
-#### query_data
-
-Step 1: 输入学生学号
-Step 2: if学号不存在 then 提示学生不存在并结束 
-Step 3: else 学号存在 then 输出学号、姓名、成绩 
-
-![](pictures/query_data.drawio.svg)
-
-#### add_data
-
-Step 1: if 数据库满 then 提示数据库满并结束
-Step 2: 输入学号
-Step 3: if 学生已存在 then 提示学生已存在并结束
-Step 4: 输入学生名字和成绩
-Step 5: 添加学生到数据
-Step 6: 提示添加成功
-
-![](pictures/add_data.drawio.svg)
-
-
-#### update_data
-
-Step 1: 输入学号
-Step 2: if 不存在 then 提示学生不存在并结束
-Step 3: else 输入学号、姓名、成绩
-Step 4: 已更新 
-
-![](pictures/updata_data.drawio.svg)
-
-#### delete_data
-
-Step 1: 输入学号
-Step 2: if 不存在 then 提示学生不存在并结束
-Step 3: else 删除学生信息
-Step 4: 提示删除成功
-
-![](pictures/delete.drawio.svg)
-
-
-#### sort_data
-Step 1: 读取文件
-Step 2: 进行排序
-Step 3: 提示排序已完成
-
-![](pictures/sort.drawio.svg)
-
-
-#### make_chart
-
-Step 1: 读取文件
-Step 2: 显示图表
-
-![](pictures/make_chart.drawio.svg)
-
-
-#### confirm
-
-Step 1: 输出 确定要退出吗
-Step 2: if 确认 then 退出
-
-![](pictures/confirm.drawio.svg)
\ No newline at end of file

From 40a47a64ecf054b2d68520191dbbdc30918a906e Mon Sep 17 00:00:00 2001
From: plebkff6w <1844263540@qq.com>
Date: Sun, 21 May 2023 16:35:42 +0800
Subject: [PATCH 65/65] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9caa66a..5da9e10 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# text4
+# 实现学生成绩管理系统
 
 2023年5月21日