作业3（5）

#include<stdio.h>
int main(void)
{
    char ch;
    printf("Enter the level(A B C D E):");/*输出*/
    ch=getchar();
    switch(ch){
    case'A':printf("The level is 90~100\n");break;
    case'B':printf("The level is 80~89\n");break;
    case'C':printf("The level is 70~79\n");break;
    case'D':printf("The level is 60~69\n");break;
    case'E':printf("The level is 0~59\n");break;
    }
    return 0;
}