C#中正确使用enum累做Key的姿势

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

namespace ConsoleApplication1
{
    enum ClothType
    {
        Hair,
        Coat,
        Shoes,
    }

    class Cloth
    {
 
    }

    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<ClothType, Cloth> dicCloth = new Dictionary<ClothType, Cloth>();
            dicCloth.Add(ClothType.Coat, new Cloth());
            Console.ReadKey();
        }
    }
}

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

namespace ConsoleApplication1
{
    enum ClothType
    {
        Hair,
        Coat,
        Shoes,
    }

    //新加比较器类
    class ClothTypeEnumComparer : IEqualityComparer<ClothType>
    {
        public bool Equals(ClothType x, ClothType y)
        {
            return x == y;          //x.Equals(y);  注意这里不要使用Equals方法，因为也会造成封箱操作
        }

        public int GetHashCode(ClothType x)
        {
            return (int)x;
        }
    }

    class Cloth
    {
 
    }

    class Program
    {
        static void Main(string[] args)
        {
            ClothTypeEnumComparer myEnumComparer = new ClothTypeEnumComparer();         //在实际项目中，比较器可以保存一份，方便服用，测试暂且如此
            Dictionary<ClothType, Cloth> dicCloth = new Dictionary<ClothType, Cloth>(myEnumComparer);
            dicCloth.Add(ClothType.Coat, new Cloth());
            Console.ReadKey();
        }
    }
}