枚举

#include <stdio.h>

enum week                        /* 定义一个枚举类型 */
{
  SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY
};

int main()
{
  enum week a, b;                 /* 定义一个枚举变量 */
  a=TUESDAY;                    /* 枚举常量TUESDAY的值为2 */
  b=THURSDAY;                     /* 枚举常量THURSDAY的值为4 */
  int c=6;
  printf ("a = %d\nb = %d\nc = %d\n",a,b,c);        /* 输出枚举变量和整型变量的值 */
  return 0;
}