Update README.md

README.md

@@ -30,14 +30,12 @@
 | ------ | ------ | ------ | ------ |
 | 25     | 25     | 25     | 25     |
 
-
 >>>>>>>
 >>>>>>
 >>>>>
 >>>>
 >>>
 >>
-
 ## 关于零件库存管理系统
 
 设计一个库存零件管理系统，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。
@@ -380,8 +378,8 @@ Step 5：else打印学生信息
 Step 1:打印学生学号和学生姓名
 Step 2：for i = 1 to num_parts
 Step 3:打印学生成绩
+![printf_data](/printf.drawio.svg)
 
-![打印记录流程图](images/printf_data.drawio.svg)
 
 
 #### update_data
@@ -390,7 +388,7 @@ Step 1：输入学生学号
 Step 2：查找学生是否已录入
 Step 3：if 不存在then 直接退出
 Step 4：else 输出学生信息
-![修改学生信息](images/update_data.drawio.svg)
+![update_data](/.drawio.svg)
 
 
 #### delete_data
@@ -399,20 +397,16 @@ Step 1:输入学生学号
 Step 2:判断学号是否存在
 Step 3:若存在则将其删除
 Step 4:否则提示不存在并结束
-
+![delete](/delete.drawio.svg)
 
 
 ### sort_data
 
 Step 1:对库存记录按学号从小到大排序
-<<<<<<< HEAD
-
-=======
 Step 2:将按照学生成绩排序，若前面的比后面大，则交换
 Step 3：每次遍历记录是否交换，若没有交换，则排序结束
 Step 4：若成绩相同，则按照学号从小到大排序
->>>>>>> 8892531498f3879c5e2a02c0346d2e14e7d0d0ff
+![sort](/sort.drawio.svg)
-
 
 ### make_chart
 
@@ -420,16 +414,13 @@ Step 1:输入文件名
 Step 2:判断其是否存在
 Step 3:若存在则打开文件并读取CSV 格式保存的所有库存记录
 Step 4:否则给出错误信息并结束
-
+![make_chart](/make_chart.drawio.svg)
-
-<<<<<<< HEAD
-
 =======
 ### read_data
 Step 1:输入文件名
-Step 2：查看输入的文件名是否和已有的文件相匹配
+Step 2：查看输入的文件名是否和已有的文化相匹配
 Step 3：若匹配成功，则打开文件
 Step 4：若不成功，则返回错误值
 Step 5：打开后利用循环，依次输出文件里各个学生的学号，姓名和成绩；
 Step 6：关闭文件
->>>>>>> 8892531498f3879c5e2a02c0346d2e14e7d0d0ff
+![read](/read_data.drawio.svg)

daima

@@ -1,4 +1,98 @@
+#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;
 }
+<<<<<<< HEAD
+<<<<<<< HEAD
+=======
+>>>>>>> ad11bacb9e5e62e3d66d89b598e042d9c52b72df
 
 // 函数定义
 void init(void)
@@ -66,6 +160,9 @@ void print_data(void)
 
 //添加
 void add_data(void)
+<<<<<<< HEAD
+=======
+=======
 {
     int num;
     printf("输入学生学号：");
@@ -88,3 +185,192 @@ void add_data(void)
         scanf("%d", &stu[num_parts].score);
         num_parts++;
         printf("学生 %d 添加成功\n", num);
+    }
+>>>>>>> ad11bacb9e5e62e3d66d89b598e042d9c52b72df
+    else
+    {
+        printf("学生已存在");
+    }
+}
+
+//修改
+void update_data(void)
+>>>>>>> 3aaec9cca337fd57c2c1b138e8ad7fee782cc079
+{
+    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)
+    {
+<<<<<<< HEAD
+        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);
+=======
+        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");
+    }
+}
+
+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);
+}
+<<<<<<< HEAD
+>>>>>>> 3aaec9cca337fd57c2c1b138e8ad7fee782cc079
+=======
+
+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");
+}
+
+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
+}
+>>>>>>> ad11bacb9e5e62e3d66d89b598e042d9c52b72df

daima.c

@@ -0,0 +1,83 @@
+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");
+}
+
+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
+}

daima1.c

@@ -1,90 +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;

picture-add.drawio.svg

@@ -0,0 +1,263 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="509px" height="921px" viewBox="-0.5 -0.5 509 921" content="&lt;mxfile&gt;&lt;diagram id=&quot;BaC8M-4rDvYO8hvXKrnK&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;" style="background-color: rgb(255, 255, 255);">
+    <defs/>
+    <g>
+        <path d="M 80 70 L 80 90 Q 80 100 80 106.82 L 80 113.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 118.88 L 76.5 111.88 L 80 113.63 L 83.5 111.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="80" cy="35" rx="60" ry="35" fill="#f5f5f5" 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: 118px; height: 1px; padding-top: 35px; 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>
+                                    add_data
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="39" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    add_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 160 160 L 283.63 160" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 288.88 160 L 281.88 163.5 L 283.63 160 L 281.88 156.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 200 L 80 233.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 238.88 L 76.5 231.88 L 80 233.63 L 83.5 231.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 120 L 160 160 L 80 200 L 0 160 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: 160px; margin-left: 1px;">
+                        <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;">
+                                数据库满？
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="164" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    数据库满？
+                </text>
+            </switch>
+        </g>
+        <path d="M 410 160 L 490 160 Q 500 160 500 170 L 500 820 Q 500 830 490 830 L 86.37 830" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 81.12 830 L 88.12 826.5 L 86.37 830 L 88.12 833.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="290" y="130" width="120" height="60" 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: 118px; height: 1px; padding-top: 160px; margin-left: 291px;">
+                        <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">
+                                    提示数据库满
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="350" y="164" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示数据库满
+                </text>
+            </switch>
+        </g>
+        <rect x="210" y="120" 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: 135px; margin-left: 225px;">
+                        <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;">
+                                <font color="#000000">
+                                    Y
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="225" y="139" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 80 320 L 80 363.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 368.88 L 76.5 361.88 L 80 363.63 L 83.5 361.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 240 L 155 280 L 80 320 L 5 280 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: 280px; margin-left: 6px;">
+                        <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;">
+                                输入学生编号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="284" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学生编号
+                </text>
+            </switch>
+        </g>
+        <path d="M 155 410 L 283.63 410" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 288.88 410 L 281.88 413.5 L 283.63 410 L 281.88 406.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 450 L 80 473.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 478.88 L 76.5 471.88 L 80 473.63 L 83.5 471.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 370 L 155 410 L 80 450 L 5 410 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: 410px; margin-left: 6px;">
+                        <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;">
+                                学生编号存在？
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="414" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学生编号存在？
+                </text>
+            </switch>
+        </g>
+        <path d="M 410 410 L 493.63 410" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 498.88 410 L 491.88 413.5 L 493.63 410 L 491.88 406.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="290" y="380" width="120" height="60" 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: 118px; height: 1px; padding-top: 410px; margin-left: 291px;">
+                        <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;">
+                                提示学生已存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="350" y="414" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示学生已存在
+                </text>
+            </switch>
+        </g>
+        <path d="M 80 560 L 80 593.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 598.88 L 76.5 591.88 L 80 593.63 L 83.5 591.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 480 L 155 520 L 80 560 L 5 520 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: 520px; margin-left: 6px;">
+                        <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;">
+                                输入学生编号和数量
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="524" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学生编号和数量
+                </text>
+            </switch>
+        </g>
+        <path d="M 80 680 L 80 713.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 718.88 L 76.5 711.88 L 80 713.63 L 83.5 711.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 600 L 155 640 L 80 680 L 5 640 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: 640px; margin-left: 6px;">
+                        <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;">
+                                添加新学生到数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="644" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    添加新学生到数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 80 800 L 80 833.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 838.88 L 76.5 831.88 L 80 833.63 L 83.5 831.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 720 L 155 760 L 80 800 L 5 760 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: 760px; margin-left: 6px;">
+                        <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;">
+                                提示添加成功
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="764" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示添加成功
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="80" cy="880" rx="60" ry="40" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <rect x="90" y="210" 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: 225px; margin-left: 105px;">
+                        <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: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="105" y="229" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="205" y="375" 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: 390px; margin-left: 220px;">
+                        <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: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="220" y="394" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="90" y="450" 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: 465px; margin-left: 105px;">
+                        <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: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="105" y="469" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </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>

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+        <ellipse cx="90" cy="40" rx="60" ry="40" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
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+                            <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;">
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+                    </div>
+                </foreignObject>
+                <text x="90" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    main
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 230 L 90 283.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 288.88 L 86.5 281.88 L 90 283.63 L 93.5 281.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="90" cy="190" rx="60" ry="40" 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: 118px; height: 1px; padding-top: 190px; margin-left: 31px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                init
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="194" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    init
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 350 L 90 403.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 408.88 L 86.5 401.88 L 90 403.63 L 93.5 401.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="30" y="290" 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: 118px; height: 1px; padding-top: 320px; margin-left: 31px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                显示菜单
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="324" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    显示菜单
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 470 L 90 503.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 508.88 L 86.5 501.88 L 90 503.63 L 93.5 501.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="30" y="410" 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: 118px; height: 1px; padding-top: 440px; margin-left: 31px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                选择菜单命令
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="444" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    选择菜单命令
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 590 L 90 633.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 638.88 L 86.5 631.88 L 90 633.63 L 93.5 631.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 165 550 L 233.63 550" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 550 L 231.88 553.5 L 233.63 550 L 231.88 546.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 510 L 165 550 L 90 590 L 15 550 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: 550px; margin-left: 16px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                读取数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="554" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    读取数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 720 L 90 773.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 778.88 L 86.5 771.88 L 90 773.63 L 93.5 771.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 170 680 L 233.63 680.02" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 680.02 L 231.88 683.52 L 233.63 680.02 L 231.88 676.52 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 640 L 170 680 L 90 720 L 10 680 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: 680px; margin-left: 11px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                保存数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="684" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    保存数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 91.25 860 L 90.16 903.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90.03 908.88 L 86.7 901.8 L 90.16 903.63 L 93.7 901.97 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 180 820 L 233.63 820" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 820 L 231.88 823.5 L 233.63 820 L 231.88 816.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 91.25 780 L 180 820 L 91.25 860 L 2.5 820 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: 176px; height: 1px; padding-top: 820px; margin-left: 4px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                打印数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="91" y="824" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打印数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 990 L 90 1033.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 1038.88 L 86.5 1031.88 L 90 1033.63 L 93.5 1031.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 170 950 L 233.63 950" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 950 L 231.88 953.5 L 233.63 950 L 231.88 946.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 910 L 170 950 L 90 990 L 10 950 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: 950px; margin-left: 11px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                查询数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="954" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    查询数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 1120 L 90 1163.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 1168.88 L 86.5 1161.88 L 90 1163.63 L 93.5 1161.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 170 1080 L 233.63 1080" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 1080 L 231.88 1083.5 L 233.63 1080 L 231.88 1076.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1040 L 170 1080 L 90 1120 L 10 1080 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: 1080px; margin-left: 11px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                添加数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="1084" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    添加数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 1250 L 90 1293.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 1298.88 L 86.5 1291.88 L 90 1293.63 L 93.5 1291.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 180 1210 L 233.63 1210" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 1210 L 231.88 1213.5 L 233.63 1210 L 231.88 1206.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1170 L 180 1210 L 90 1250 L 0 1210 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: 178px; height: 1px; padding-top: 1210px; margin-left: 1px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                更新数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="1214" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    更新数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 1380 L 90 1423.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 1428.88 L 86.5 1421.88 L 90 1423.63 L 93.5 1421.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 170 1340 L 233.63 1340" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 1340 L 231.88 1343.5 L 233.63 1340 L 231.88 1336.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1300 L 170 1340 L 90 1380 L 10 1340 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: 1340px; margin-left: 11px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                删除数据
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="1344" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    删除数据
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 1510 L 90 1543.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 1548.88 L 86.5 1541.88 L 90 1543.63 L 93.5 1541.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 170 1470 L 233.63 1470" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 1470 L 231.88 1473.5 L 233.63 1470 L 231.88 1466.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1430 L 170 1470 L 90 1510 L 10 1470 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: 1470px; margin-left: 11px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                对数据排序
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="1474" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    对数据排序
+                </text>
+            </switch>
+        </g>
+        <path d="M 165 1590 L 233.63 1590" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 1590 L 231.88 1593.5 L 233.63 1590 L 231.88 1586.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1630 L 90 1660 Q 90 1670 100 1670 L 233.63 1670" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 238.88 1670 L 231.88 1673.5 L 233.63 1670 L 231.88 1666.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1630 L 90 1703.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90 1708.88 L 86.5 1701.88 L 90 1703.63 L 93.5 1701.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1550 L 165 1590 L 90 1630 L 15 1590 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: 1590px; margin-left: 16px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                生成图表报表
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="1594" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    生成图表报表
+                </text>
+            </switch>
+        </g>
+        <path d="M 90 1790 L 90.95 1903.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 90.99 1908.88 L 87.43 1901.91 L 90.95 1903.63 L 94.43 1901.85 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 165 1750 L 450 1750 Q 460 1750 460 1740 L 460 390 Q 460 380 460 370 L 460 270 Q 460 260 450 260 L 96.37 260" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 91.12 260 L 98.12 256.5 L 96.37 260 L 98.12 263.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 90 1710 L 165 1750 L 90 1790 L 15 1750 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: 1750px; margin-left: 16px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                确定退出
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="90" y="1754" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    确定退出
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 550 L 453.63 550" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 550 L 451.88 553.5 L 453.63 550 L 451.88 546.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="520" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 520 L 252 580 M 348 520 L 348 580" fill="none" 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: 94px; height: 1px; padding-top: 550px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                read_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="554" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 680 L 453.63 680" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 680 L 451.88 683.5 L 453.63 680 L 451.88 676.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="650" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 650 L 252 710 M 348 650 L 348 710" fill="none" 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: 94px; height: 1px; padding-top: 680px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                save_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="684" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 820 L 453.63 820" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 820 L 451.88 823.5 L 453.63 820 L 451.88 816.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="790" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 790 L 252 850 M 348 790 L 348 850" fill="none" 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: 94px; height: 1px; padding-top: 820px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                print_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="824" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    print_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 950 L 453.63 950" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 950 L 451.88 953.5 L 453.63 950 L 451.88 946.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="920" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 920 L 252 980 M 348 920 L 348 980" fill="none" 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: 94px; height: 1px; padding-top: 950px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="954" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 1080 L 453.63 1080" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 1080 L 451.88 1083.5 L 453.63 1080 L 451.88 1076.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="1050" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 1050 L 252 1110 M 348 1050 L 348 1110" fill="none" 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: 94px; height: 1px; padding-top: 1080px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                add_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="1084" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    add_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 1210 L 453.63 1210" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 1210 L 451.88 1213.5 L 453.63 1210 L 451.88 1206.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="1180" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 1180 L 252 1240 M 348 1180 L 348 1240" fill="none" 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: 94px; height: 1px; padding-top: 1210px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                update_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="1214" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    update_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 1340 L 453.63 1340" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 1340 L 451.88 1343.5 L 453.63 1340 L 451.88 1336.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="1310" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 1310 L 252 1370 M 348 1310 L 348 1370" fill="none" 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: 94px; height: 1px; padding-top: 1340px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                delete_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="1344" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    delete_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 1470 L 453.63 1470" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 1470 L 451.88 1473.5 L 453.63 1470 L 451.88 1466.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="1440" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 1440 L 252 1500 M 348 1440 L 348 1500" fill="none" 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: 94px; height: 1px; padding-top: 1470px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                sort_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="1474" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    sort_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 1590 L 453.63 1590" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 1590 L 451.88 1593.5 L 453.63 1590 L 451.88 1586.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="1560" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 1560 L 252 1620 M 348 1560 L 348 1620" fill="none" 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: 94px; height: 1px; padding-top: 1590px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                make_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="1594" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_data
+                </text>
+            </switch>
+        </g>
+        <rect x="31.25" y="1910" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 43.25 1910 L 43.25 1970 M 139.25 1910 L 139.25 1970" fill="none" 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: 94px; height: 1px; padding-top: 1940px; margin-left: 44px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                quit
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="91" y="1944" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    quit
+                </text>
+            </switch>
+        </g>
+        <path d="M 360 1670 L 453.63 1670" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 458.88 1670 L 451.88 1673.5 L 453.63 1670 L 451.88 1666.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="240" y="1640" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/>
+        <path d="M 252 1640 L 252 1700 M 348 1640 L 348 1700" fill="none" 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: 94px; height: 1px; padding-top: 1670px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                命令错误，重新选择
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="300" y="1674" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    命令错误，重新选择
+                </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>

picture-save.drawio.svg

@@ -0,0 +1,139 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="402px" height="761px" viewBox="-0.5 -0.5 402 761" content="&lt;mxfile&gt;&lt;diagram id=&quot;XqWKmENHy5PHFl644qRj&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;" style="background-color: rgb(255, 255, 255);">
+    <defs>
+        <linearGradient x1="0%" y1="0%" x2="0%" y2="100%" id="mx-gradient-ffffff-1-000000-1-s-0">
+            <stop offset="0%" style="stop-color: rgb(255, 255, 255); stop-opacity: 1;"/>
+            <stop offset="100%" style="stop-color: rgb(0, 0, 0); stop-opacity: 1;"/>
+        </linearGradient>
+    </defs>
+    <g>
+        <path d="M 73 80 L 73 133.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 138.88 L 69.5 131.88 L 73 133.63 L 76.5 131.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="73" cy="40" rx="60" ry="40" fill="url(#mx-gradient-ffffff-1-000000-1-s-0)" 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: 118px; height: 1px; padding-top: 40px; margin-left: 14px;">
+                        <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="73" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 220 L 73 263.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 268.88 L 69.5 261.88 L 73 263.63 L 76.5 261.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 140 L 138 180 L 73 220 L 8 180 Z" fill="url(#mx-gradient-ffffff-1-000000-1-s-0)" 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: 128px; height: 1px; padding-top: 180px; margin-left: 9px;">
+                        <div data-drawio-colors="color: #000000; background-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; background-color: rgb(0, 0, 0); white-space: normal; overflow-wrap: normal;">
+                                <span style="background-color: rgb(255, 255, 255);">
+                                    输入文件名
+                                </span>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="184" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入文件名
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 350 L 73 403.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 408.88 L 69.5 401.88 L 73 403.63 L 76.5 401.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 140.5 310 L 206.63 310" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 211.88 310 L 204.88 313.5 L 206.63 310 L 204.88 306.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 270 L 140.5 310 L 73 350 L 5.5 310 Z" fill="url(#mx-gradient-ffffff-1-000000-1-s-0)" 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: 133px; height: 1px; padding-top: 310px; margin-left: 7px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                打开文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="314" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打开文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 490 L 73 543.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 548.88 L 69.5 541.88 L 73 543.63 L 76.5 541.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 410 L 143 450 L 73 490 L 3 450 Z" fill="url(#mx-gradient-ffffff-1-000000-1-s-0)" 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: 450px; margin-left: 4px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                将所有库存记录写入文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="454" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    将所有库存记录写入文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 630 L 73 673.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 678.88 L 69.5 671.88 L 73 673.63 L 76.5 671.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 550 L 145.5 590 L 73 630 L 0.5 590 Z" fill="url(#mx-gradient-ffffff-1-000000-1-s-0)" 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: 143px; height: 1px; padding-top: 590px; margin-left: 2px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                关闭文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="594" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    关闭文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 333 310 L 383 310 Q 393 310 384.64 315.49 L 78.32 516.51" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73.93 519.39 L 77.87 512.62 L 78.32 516.51 L 81.71 518.47 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="213" y="280" width="120" height="60" fill="url(#mx-gradient-ffffff-1-000000-1-s-0)" 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: 118px; height: 1px; padding-top: 310px; margin-left: 214px;">
+                        <div data-drawio-colors="color: #000000; background-color: #FFFFFF; " 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; background-color: rgb(255, 255, 255); white-space: normal; overflow-wrap: normal;">
+                                提示打开文件失败
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="273" y="314" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    提示打开文件失败
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="73" cy="720" rx="60" ry="40" fill="url(#mx-gradient-ffffff-1-000000-1-s-0)" 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>