#include <stdio.h>
#include <stdlib.h>
int main()
{
int score,level;
printf(" 請輸入您的分數:");
scanf("%d",&score);
level= (int) score/10;
switch(level)
{
case 9:
puts("A級別");
break;
case 8:
puts("B級別");
break;
case 7:
puts("C級別");
break;
case 6:
puts("D級別");
break;
default:
printf("選項錯誤\n");
}
printf("===========================\n");
system("pause");
return 0;
}