编辑代码

#include <stdio.h>
int main () {
    int x;
    printf("请输入分数：");
    scanf("%d",&x);
    x=x/10;
    switch(x){
        case 10:
        case 9:
            printf("A");
            break;
        case 8:
            printf("B");
            break;
        case 7:
            printf("C");
            break;
        case 6:
            printf("D");
            break;
        case 5:
        case 4:
        case 3:
        case 2:
        case 1:
        case 0:
            printf("E");
            break;
    }

    return 0;
}