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#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
int select;
int i, j;
int score[5][7];
int average = 0;
int sum = 0;
do{
printf("本程序有4项功能：\n");
printf(" 1. 根据学号查询学生成绩\n");
printf(" 2. 根据考试号统计成绩\n") ;
printf(" 3. 根据考试号和学号查询成绩\n");
printf(" 4. 成绩录入\n");
printf(" 0. 退出\n");
printf(" 请输入选择(0 - 4): ");
scanf("%d", &select);
switch(select)
{
case 0:
printf("OK\n");
exit(0);
break;
case 1:
printf("输入学号：");
scanf("%d\n", &i);
for(j=1; j<7; j++)
{
printf("第%d科成绩是%d\n", j, score[i][j]);
sum += score[i][j];
}
average = sum/6;
printf("学生的平均成绩是%d\n", average);
break;
case 2:
printf("输入考试号：");
scanf("%d\n", &j);
for(i=1; i<5; i++)
{
printf("第%d号学生本科成绩是%d\n", i, score[i][j]);
sum += score[i][j];
}
average = sum/4;
printf("本科平均成绩是%d\n", average);
break;
case 3:
printf("输入学号和考试号：");
scanf("%d %d\n",&i, &j);
printf("第%d号学生的第%d科考试成绩是%d\n", i, j, score[i][j]);
break;
case 4:
printf("请输入成绩\n");
for(i = 1; i < 5; j ++)
for(j = 1; j < 7; j++)
scanf("%d\n", &score[i][j]);
break;
default:
break;
}
}while(1);
a
system("pause");
return 0;
}
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