C# enum 添加字符串（中文）标记

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

namespace enumDemo
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine(((int)week.monday).ToString());
Console.WriteLine(week.monday.ToString());
Console.WriteLine(EnumHelper.GetDescription(week.monday));
Console.WriteLine(((int)week.tuesday).ToString());
Console.WriteLine(week.tuesday.ToString());
Console.WriteLine(EnumHelper.GetDescription(week.tuesday));

if (week.优惠券.ToString().Equals("优惠券"))
{
Console.WriteLine("bingo");
}
Console.ReadLine();
}
enum week
{
[EnumDescription("星期一")]
monday,
[EnumDescription("星期二")]
tuesday,
优惠券
}

#region  添加标记方法
[AttributeUsage(AttributeTargets.Field, AllowMultiple = false)]
public sealed class EnumDescriptionAttribute : Attribute
{
private string description;
public string Description
{
get { return this.description; }
}

public EnumDescriptionAttribute(string description)
: base()
{
this.description = description;
}
}

public static class EnumHelper
{
public static string GetDescription(Enum value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
string description = value.ToString();
System.Reflection.FieldInfo fieldinfo = value.GetType().GetField(description);
EnumDescriptionAttribute[] attributes = (EnumDescriptionAttribute[])fieldinfo.GetCustomAttributes(typeof(EnumDescriptionAttribute), false);
if (attributes != null && attributes.Length > 0)
{
description = attributes[0].Description;
}
return description;
}
}

#endregion

        class weekend
        {
            public static readonly weekend monday = new weekend(0);
            public static readonly weekend tuesday = new weekend(1);

            private int _infoType;
            private weekend(int infoType)
            {
                _infoType = infoType;
            }
            public override string ToString()
            {
                switch (_infoType)
                {
                    case 0:
                        return "星期一";
                    case 1:
                        return "星期二";
                    default:
                        throw new Exception("不正确的输入");
                }
                //return base.ToString();
            }
        }

 }
}