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.vscode/tasks.json

@@ -0,0 +1,28 @@
+{
+    "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"
+}

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);
+	}	
+}