IEqualityComparer与EqualityComparer?

问题描述

我已经阅读了此帖子，但它没有回答我的问题.

I've read this post but it doesn't answer my question.

MSDN 说法:

但是，如果我看一下实现，它们都使用通用类型:

but if I look at the implementation, they both use the generic Type:

 public class AAA:IEqualityComparer<Box>
    {
        public bool Equals(Box x, Box y)
        {
        }

        public int GetHashCode(Box obj)
        {
        }
    }

    public class BBB : EqualityComparer<Box>
    {
        public override bool Equals(Box x, Box y)
        {
        }

        public override int GetHashCode(Box obj)
        {
        }
    }

我想念什么?

推荐答案

我认为其他帖子您提到的是说 EqualityComparer< Box> 实现了 IEqualityComparer< Box> 和 IEqualityComparer ，因此您不必同时实现通用和非通用接口，如果您从 EqualityComparer< Box> 派生.

I think the other post you mention is saying that EqualityComparer<Box> implements IEqualityComparer<Box> and IEqualityComparer, so you don't have to implement both the generic and non-generic interfaces if you derive from EqualityComparer<Box>.

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