成绩

#include <stdio.h>
#include <stdlib.h>

int main()//百分制成绩转换为五分制成绩
{
int score;
printf("输入学生成绩：");
scanf("%d",&score);
score/=10;

if(score>100||score<0)
printf("输出错误 请重新输入：");

else
switch(score)
{
case 10:
printf("A\n");
break;
case 9:
printf("A\n");
break;
case 8:
printf("B\n");
break;
case 7:
printf("C\n");
break;
case 6:
printf("D\n");
break;
default:
printf("E\n");
}

}