ch23-12.c

C语言程序设计上机指导与练习 冶金工业出版社 刘怀亮

#include "stdio.h"
void main()
{ 
   enum weekday{sun,mon,tue,wed,thu,fri,sat};
   char name[7][4]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
   enum weekday day1,day2;
   int i;
   day1=fri;
   i=(day1+209)%7;
   printf("\nthe day is:%s", name[i]);
}