Question

c语言编程 输入学生的成绩等级abcde,输出相应的成绩范围

Answer 1

#include "stdio.h"
int main(void){
    char a[][7]={"90~100","80~89","70~79","60~69","0~59"},ch;
    printf("Please enter the class code(Error is quit)...\n");
    while(scanf(" %c",&ch)==1)
        if(ch|=0x20,ch>='a' && ch<='e')
            printf("%s\n",a[ch-'a']);
        else{
            printf("Error, exit!\n");
            break;
        }
    return 0;
}

Answer 2

太简单了，