里面枚举的方法在C＃ [英] Methods inside enum in C#

问题描述

在Java中写枚举一个选项，功能，可用于枚举对象内部

In Java there is an option to write enum, and functions inside the enum object that can be used.

有在C＃这种可能性，或只是一个字符串集合，这就是它？

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

我想覆盖的ToString（）功能，它不能编译。 ？是否有人有一个简单的代码示例

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

推荐答案

您可以编写扩展方法为枚举类型：

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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