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