C#中枚举内部的方法 [英] Methods inside enum in C#

问题描述

在 Java 中，可以在枚举中包含方法.

In Java, it's possible to have methods inside an enum.

在 C# 中是否有这种可能性，或者它只是一个字符串集合，仅此而已?

Is there such possibility in C# or is it just a string collection and that's it?

我试图覆盖 ToString() 但它没有编译.有人有简单的代码示例吗?

I tried to override ToString() but it does not compile. Does someone have a simple code sample?

推荐答案

您可以编写 扩展方法用于枚举类型:

You can write extension methods for enum types:

enum Stuff
{
    Thing1,
    Thing2
}

static class StuffMethods
{

    public static String GetString(this Stuff s1)
    {
        switch (s1)
        {
            case Stuff.Thing1:
                return "Yeah!";
            case Stuff.Thing2:
                return "Okay!";
            default:
                return "What?!";
        }
    }
}

class Program
{


    static void Main(string[] args)
    {
        Stuff thing = Stuff.Thing1;
        String str = thing.GetString();
    }
}

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