枚举类型

enum weekday{
    sun=7,mon=1,tue=2,wed=3,thu=4,fir=5,sta=6
}workday;
int main(int argc, const char * argv[]) {
    enum weekday day;
    scanf("%d",&day);
    if (day==1) {
        printf("今天是星期一\n");
    }
    return 0;
}