C#枚举的定义与用法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data;

namespace 枚举
{
    class Program
    {
        public enum Week
        { 
            sum=0,Mon=1,Tue=2,Wed=3,thr=4,Fri=5,sat=6
        }
       
        static void Main(string[] args)
        {
            //获取代表星期几的返回值；因为今天是星期二所以返回值是2
            int  i= (int)(DateTime.Now.DayOfWeek);
            switch (i)
            { 
                //如果返回的值与枚举元素对应的值相等，就输出今天是星期几
                case (int)Week.sum:
                    Console.WriteLine("星期日");
                    break;
                                             
                case (int)Week.Mon:
                     Console.WriteLine("星期一");
                     break;  
                    
                case (int)Week.Tue:
                     Console.WriteLine("星期二");
                     break;

                case (int)Week.Wed:
                     Console.WriteLine("星期三");
                     break;

                case (int)Week.thr:
                     Console.WriteLine("星期四");
                     break;

                case (int)Week.Fri:
                     Console.WriteLine("星期五");
                     break;

                case (int)Week.sat:
                     Console.WriteLine("星期六");
                     break;
                 
            }

            Console.WriteLine(i);//输出2，因为今天是星期二，所以（int）DateTime.Now.DayOfWeek的返回值是2

            Console.ReadKey();
            
        }
    }
}

C#枚举的定义与用法,布布扣,bubuko.com

C#枚举的定义与用法

原文：http://blog.csdn.net/fanbin168/article/details/24307863