3/26 c++作業一

#include <stdio.h>
#include <stdlib.h>
int main(void)
{
int s;
int t;
printf("請輸入分數:\n");
scanf("%d",&s);
printf("============================\n");
t=s/10;

if (s>100||s<0)
{
         printf("輸入錯誤\n");
}
else
{

switch (t)
{
     case 10:printf("成績A\n");
     break;

     case 9:printf("成績A\n");
     break;

     case 8:printf("成績B\n");
     break;

     case 7:printf("成績C\n");
     break;

     case 6:printf("成績D\n");
     break;

     case 5:printf("不及格\n");
     break;

     case 4:printf("不及格\n");
     break;

     case 3:printf("不及格\n");
     break;

     case 2:printf("不及格D\n");
     break;

     case 1:printf("不及格\n");
     break;

     case 0:printf("不及格\n");
     break;

     default :printf("輸入錯誤\n");
     break;

}
}
printf("============================\n");


    system("pause");
    return 0;
}