#include<stdio.h>
int main()
{
Char grade;
Scanf(“%c”,&grade);
Printf(“your score:”);
Switch(grade)
{ case’A’:printf(“85-100\n”);break;
Case’B’:printf(“70-84\n”);break;
Case’C’:printf(“60-69”);break;
Case’D’:printf(“0-60”);break;
Default:printf(“error!”);
}
Return(0)
}

真的好急，，，有好心人帮忙吗