C#枚举类型

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ConsoleApplication1{    enum Number { one=1,two,three }    class Program    {        static void Main(string[] args)        {            Number num=Number.one;            switch (num)            {                case Number.one:                    Console.WriteLine("one!");                    break;                case Number.two:                    Console.WriteLine("two!");                    break;                case Number.three:                    Console.WriteLine("three!");                    break;                default:                    Console.WriteLine("WRROY!");                    break;                    Console.WriteLine();            }        }    }}