#include<stdio.h>
enum weekdays{MON=1,TUE,WED,THU,FRI,SAT,SUN};
main()
{
enum weekdays day; /*定义枚举变量*/
char*dayname[]={"","星期一","星期二","星期三","星期四",
"星期五","星期六","星期日"};
for(day=MON;day<=SUN; day=(enum weekdays)(day+1))
printf("第%2d天%10s\n",day,dayname[day]);
}