#include/* 定义方法1:只定义枚举类型,不定义变量enum week{ SUN, // SUN = 0 MON, // MON = 1; TUE, WEN, THU, FRI, SAT,};*//*定义方法2:同时定义枚举类型和变量enum week{ SUN, // SUN = 0 MON, // MON = 1; TUE, WEN, THU, FRI, SAT,}today;*//*定义方法3:同时定义枚举类型和变量enum week{ SUN, // SUN = 0 MON, // MON = 1; TUE, WEN, THU, FRI, SAT,}today,yestaday;*//*定义方法4:typedef enum week{ SUN, // SUN = 0 MON, // MON = 1; TUE, WEN, THU, FRI, SAT,}week;*/typedef enum { SUN, // SUN = 0 MON, // MON = 1; TUE, WEN, THU, FRI, SAT,}week;int main(void){/* 测试定义方法1 enum week today; today = SUN; printf("today is %dth \n",today);*//*测试定义方法2 3 today = SUN; yestaday = SAT; printf("today is %dth \n",today); printf("yestaday is %dth \n",yestaday);*//*测试定义方法4 5 week yestaday; yestaday = SAT; printf("yestaday is %dth \n",yestaday);*/ return 0;}