成绩等级转换 （C语言代码）

解题思路:

注意事项:

参考代码:

#include <stdio.h>

int main(){

   int a;

   while(~scanf("%d", &a)){

      switch(a/10){

         case 10:

         case 9: printf("A\n");break;

         case 8: printf("B\n");break;

         case 7: printf("C\n");break;

         case 6: printf("D\n");break;

         case 5: case 4: case 3: case 2: case 1: case 0: printf("E\n");break;

         default: printf("Score is error!\n");break;

      }

   }

   return 0;

}