#include<stdio.h>/*定义方法1：只定义枚举类型，不定义变量enumweek{SUN,//SUN=0MON,//MON=1;TUE,WEN,THU,FRI,SAT,};*//*定义方法2：同时定义枚举类型和变量enumweek{SUN,//SUN=0MON,//MON=1;TUE,WEN,THU,FRI,SAT,}today;*//*定义方法3：同时定义枚举类型和变量enumweek{SUN,//SUN=0MON,//MON=1;TUE,WEN,THU,FRI,SAT,}today,yestaday;*//*定义方法4：typedefenumweek{SUN,//SUN=0MON,//MON=1;TUE,WEN,THU,FRI,SAT,}week;*/typedefenum{SUN,//SUN=0MON,//MON=1;TUE,WEN,THU,FRI,SAT,}week;intmain(void){/*测试定义方法1enumweektoday;today=SUN;printf("todayis%dth\n",today);*//*测试定义方法23today=SUN;yestaday=SAT;printf("todayis%dth\n",today);printf("yestadayis%dth\n",yestaday);*//*测试定义方法45weekyestaday;yestaday=SAT;printf("yestadayis%dth\n",yestaday);*/return0;}