枚举扩展方法获取枚举Description

public enum WeekDay
{
[Description("星期一")]
one=1,
[Description("星期二")]
two =2,
three=3,
four=4,
five=5,
six=6,
seven=7

}

//枚举测试
WeekDay w1 = WeekDay.one;
string strw1 = w1.GetDescription();// strw1= “星期一”

WeekDay w3 = WeekDay.three;
string strw2 = w3.GetDescription();// strw3=“three”