C/C++中的枚举数据类型

• 关键字：
  Emum 自定义名称{a = 1
  b = 2,
  c = 3,
  d = 4}box;
  定义好之后可以直接通过box关键字调用

ennum bag{book1 = "百年孤独"，
book2 = "时间简史"，
book3 = "简爱"}book；
book1;
book2;
a = book.book1;

语法enum 枚举名{ 枚举值表 }名称;

enum weekday{day1 = 1,day2 = 2,
day3,day4,day5,day6,day7}day;
int main()
{
	a = day1;
	b = day2;
	c = day3;
	print("%d,%d,%d",a,b,c);
	

}