C语言枚举的用法

 

以一周为例，用法如下：

#include <stdio.h>

int main(){
    enum week{ Mon = 1, Tues, Wed, Thurs, Fri, Sat, Sun } day; //day = 1时，为week中下标为1 的定义,下标由第一个元素依次递增
    scanf("%d", &day);
    switch(day){
        case Mon: puts("Monday"); break;
        case Tues: puts("Tuesday"); break;
        case Wed: puts("Wednesday"); break;
        case Thurs: puts("Thursday"); break;
        case Fri: puts("Friday"); break;
        case Sat: puts("Saturday"); break;
        case Sun: puts("Sunday"); break;
        default: puts("Error!");
    }
    return 0;
}