Merge branch '计算每个学生各门课程的总分和平均分' of https://bdgit.educoder.net/p2i3t8vuh/text4

.vscode/c_cpp_properties.json

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+{
+  "configurations": [
+    {
+      "name": "windows-gcc-x64",
+      "includePath": [
+        "${workspaceFolder}/**"
+      ],
+      "compilerPath": "gcc",
+      "cStandard": "${default}",
+      "cppStandard": "${default}",
+      "intelliSenseMode": "windows-gcc-x64",
+      "compilerArgs": [
+        ""
+      ]
+    }
+  ],
+  "version": 4
+}

.vscode/launch.json

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+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "C/C++ Runner: Debug Session",
+      "type": "cppdbg",
+      "request": "launch",
+      "args": [],
+      "stopAtEntry": false,
+      "externalConsole": true,
+      "cwd": "c:/Users/lipei/Desktop/VSCode 2/text4",
+      "program": "c:/Users/lipei/Desktop/VSCode 2/text4/build/Debug/outDebug",
+      "MIMode": "gdb",
+      "miDebuggerPath": "gdb",
+      "setupCommands": [
+        {
+          "description": "Enable pretty-printing for gdb",
+          "text": "-enable-pretty-printing",
+          "ignoreFailures": true
+        }
+      ]
+    }
+  ]
+}

.vscode/settings.json

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+{
+  "C_Cpp_Runner.cCompilerPath": "gcc",
+  "C_Cpp_Runner.cppCompilerPath": "g++",
+  "C_Cpp_Runner.debuggerPath": "gdb",
+  "C_Cpp_Runner.cStandard": "",
+  "C_Cpp_Runner.cppStandard": "",
+  "C_Cpp_Runner.msvcBatchPath": "",
+  "C_Cpp_Runner.useMsvc": false,
+  "C_Cpp_Runner.warnings": [
+    "-Wall",
+    "-Wextra",
+    "-Wpedantic",
+    "-Wshadow",
+    "-Wformat=2",
+    "-Wconversion",
+    "-Wnull-dereference",
+    "-Wsign-conversion"
+  ],
+  "C_Cpp_Runner.enableWarnings": true,
+  "C_Cpp_Runner.warningsAsError": false,
+  "C_Cpp_Runner.compilerArgs": [],
+  "C_Cpp_Runner.linkerArgs": [],
+  "C_Cpp_Runner.includePaths": [],
+  "C_Cpp_Runner.includeSearch": [
+    "*",
+    "**/*"
+  ],
+  "C_Cpp_Runner.excludeSearch": [
+    "**/build",
+    "**/build/**",
+    "**/.*",
+    "**/.*/**",
+    "**/.vscode",
+    "**/.vscode/**"
+  ],
+  "C_Cpp_Runner.useAddressSanitizer": false,
+  "C_Cpp_Runner.showCompilationTime": false
+}

.vscode/tasks.json

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+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: gcc.exe 生成活动文件",
+            "command": "C:\\mingw64\\bin\\gcc.exe",
+            "args": [
+                "-fdiagnostics-color=always",
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}\\${fileBasenameNoExtension}.exe"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "调试器生成的任务。"
+        }
+    ],
+    "version": "2.0.0"
+}

README.md

@@ -1,2 +1,110 @@
-# text4
+# 学生成绩管理系统
 
+2023年4月23日
+ 王振宇 李文菲 武杭凯 李培毅
+
+## 项目简介
+
+本学生成绩管理系统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，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。
+下载地址：https://bdgit.educoder.net/p2i3t8vuh/text4.git
+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 |
+|-----|-----|-----|-----|-----|
+|驱动C1到C3及显示菜单，并读取用户输入 ||||王振宇|
+|显示菜单并获得用户键盘输入的选项||||李文菲|
+|输入n个学生的m门课成绩 ||||武杭凯|
+计算每个学生各门课程的总分和平均分 ||||李培毅|
+
+每个成员的工作量（百分比）：
+
+|王振宇|李文菲|武杭凯|李培毅|
+|------|------|------|------|
+|  30  |  25  |   20 |  25  |
+
+## 关于学生成绩管理系统
+
+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、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
+~~~
+库存管理系统启动
+| 1 录入 | 2 计算 | 0 退出 
+请选择： 
+~~~                 
+
+ #### C2: 显示命令菜单
+
+~~~
+| 1 录入 | 2 计算 | 0 退出 
+请选择：
+~~~
+#### C3: 退出程序
+
+选择菜单命令 0 ，退出程序
+~~~
+请选择：0
+程序退出
+~~~
+#### C4：添加学生成绩
+~~~
+请选择：1
+输入学生序号：1
+输入学科序号：4
+输入成绩：100
+学生1成绩 已添加
+| 1 录入 | 2 计算 | 0 退出 
+
+请选择： 1
+输入学生序号：1
+输入学科序号：4
+学生成绩已存在
+~~~
+#### C5：计算每个学生各门课程的总分和平均分
+~~~
+请选择：2
+输出序号：1
+输出各门课程的总分：4，100
+输出各门课程的平均分：4，100
+~~~
+
+## 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。
+数据处理模块包括数据输入(ReadScore)，数据计算(AverSumofEveryStudent)等模块组成。
+上述各模块通过主程序（main）进行调用，系统模块图如下。
+![](流程图.png)
+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
+![](text.drawio.svg)
+
+
+#####add_data
+Step 1: if 数据库满 then 提示数据库满并结束
+Step 2: 输入零件编号
+Step 3: if 学生成绩已存在 then 提示学生成绩已存在并结束
+Step 4: 输入学生名和学科
+Step 5: 添加新成绩到数据
+Step 6: 提示添加成功
+![](流程图（2）.png)

menu

@@ -0,0 +1,11 @@
+int Menu(void)
+{
+		int itemSelected;
+		printf("Management for Students' scores\n");
+		printf("1.Input record\n");
+		printf("2.Calculate total and average score of every course\n");
+		printf("0.Exit\n");
+		printf("Please Input your choice:");
+		scanf("%d", &itemSelected); 	// 读入用户输入 
+		return itemSelected;
+}

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+                                c=
+                                <span style="border-color: var(--border-color); background-color: rgb(255, 255, 255); font-family: Consolas, &quot;Courier New&quot;, monospace; font-size: 14px;">
+                                    ReadScore
+                                </span>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
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+                    c=ReadScore
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+        <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: 645px; 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=
+                                <span style="border-color: var(--border-color); background-color: rgb(255, 255, 255); font-family: Consolas, &quot;Courier New&quot;, monospace; font-size: 14px;">
+                                    AverSumofEveryStudent
+                                </span>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="100" y="649" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
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+                </text>
+            </switch>
+        </g>
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+                        <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;">
+                                <br/>
+                                <span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: center; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(251, 251, 251); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">
+                                    c=CMD_QUIT
+                                </span>
+                                <div>
+                                    <br/>
+                                </div>
+                                <div>
+                                    <br/>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="100" y="784" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c=CMD_QUIT...
+                </text>
+            </switch>
+        </g>
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+        <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: 490px; margin-left: 287px;">
+                        <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="334" y="494" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 500 645 L 573.63 645" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
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+        <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: 190px; height: 1px; padding-top: 645px; margin-left: 285px;">
+                        <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;">
+                                aversumofeverystudent_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="380" y="649" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    aversumofeverystudent_data
+                </text>
+            </switch>
+        </g>
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+        <rect x="570" y="635" width="20" height="20" fill="none" stroke="none" 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>

void

@@ -0,0 +1,14 @@
+// 函数功能：输入n个学生的m门课成绩 
+void ReadScore(STU stu[], int n, int m)
+{
+ int i, j;
+ printf("Input student's ID, name and score:\n");
+    /* ---------- begain ---------- */
+    for(i=0;i<n;i++)
+    {scanf("%ld%s",&stu[i].num,stu[i].name);
+     for (j=0; j<m; j++)
+     scanf("%f",&stu[i].score[j]);
+    }
+
+    /* ----------- end ----------- */
+}

学生成绩管理系统代码.c

@@ -0,0 +1,83 @@
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <string.h>
+#define   MAX_LEN  10                    	// 字符串最大长度 
+#define   STU_NUM 30                       // 最多的学生人数 
+#define   COURSE_NUM 6                     // 最多的考试科目数 
+typedef struct student
+{
+		long num;						// 每个学生的学号 
+		char name[MAX_LEN];            	// 每个学生的姓名 
+		float score[COURSE_NUM];		// 每个学生COURSE_NUM门功课的成绩 
+		float sum;                   	     // 每个学生的总成绩 
+		float aver;               	     // 每个学生的平均成绩 
+}STU;
+int   Menu(void);
+void  ReadScore(STU stu[], int n, int m);
+void  AverSumofEveryStudent(STU stu[], int n, int m);
+int main(void)
+{
+	char  ch;
+	int   n = 0, m = 0;
+	STU   stu[STU_NUM];	
+printf("Input student number(n<%d):", STU_NUM);
+	scanf("%d", &n);
+printf("Input course number(m<=%d):",COURSE_NUM);
+	scanf("%d", &m);
+	while (1)
+	{
+		ch = Menu();					    // 显示菜单，并读取用户输入 		
+		switch (ch)
+		{
+			case 1:ReadScore(stu, n, m);
+					break;
+			case 2: AverSumofEveryStudent(stu, n, m);                    
+					break;
+			case 0: printf("End of program!");
+			       	exit(0);
+			default:printf("Input error!");
+		}
+	}
+	return 0;}
+//  函数功能：显示菜单并获得用户键盘输入的选项 
+int Menu(void)
+{
+		int itemSelected;
+		printf("Management for Students' scores\n");
+		printf("1.Input record\n");
+		printf("2.Calculate total and average score of every course\n");
+		printf("0.Exit\n");
+		printf("Please Input your choice:");
+		scanf("%d", &itemSelected); 	// 读入用户输入 
+		return itemSelected;
+}
+// 函数功能：输入n个学生的m门课成绩 
+void ReadScore(STU stu[], int n, int m)
+{
+	int i, j;
+	printf("Input student's ID, name and score:\n");
+    /* ---------- begain ---------- */
+    for(i=0;i<n;i++)
+    {scanf("%ld%s",&stu[i].num,stu[i].name);
+     for (j=0; j<m; j++)
+     scanf("%f",&stu[i].score[j]);
+    }
+
+    /* ----------- end ----------- */
+}
+// 函数功能：计算每个学生各门课程的总分和平均分 
+void AverSumofEveryStudent(STU stu[], int n, int m)
+{
+	int i, j;
+	for (i=0; i<n; i++)
+	{
+	    stu[i].sum = 0;
+	    for (j=0; j<m; j++)
+	    {
+            stu[i].sum = stu[i].sum + stu[i].score[j];
+	    }
+	    stu[i].aver = m>0 ? stu[i].sum / m : -1;
+	    printf("student %d: sum = %.0f, aver = %.0f\n", 
+i+1, stu[i].sum, stu[i].aver);
+	}	
+}