为什么System.Net.Http.HttpMethod是类而不是枚举?

问题描述：

HttpStatusCode被实现为enum，每个可能的值都分配给其相应的HTTP状态代码(例如(int)HttpStatusCode.Ok == 200).

HttpStatusCode is implemented as an enum, with each possible value assigned to its corresponding HTTP status code (e.g. (int)HttpStatusCode.Ok == 200).

但是，HttpMethod是

However, HttpMethod is implemented as a class, with static properties to get instances for the various HTTP verbs (HttpStatus.GET, HttpStatus.PUT etc). What is the rationale behind not implementing HttpMethod as an enum?

答

来自

备注

HttpMethod的最常见用法是在此类上使用静态属性之一. 但是，如果应用程序需要不同的HTTP方法值，则HttpMethod构造函数会使用应用程序指定的HTTP方法来初始化HttpMethod的新实例.

The most common usage of HttpMethod is to use one of the static properties on this class. However, if an app needs a different value for the HTTP method, the HttpMethod constructor initializes a new instance of the HttpMethod with an HTTP method that the app specifies.

用枚举当然是不可能的.

Which is of course not possible with an enum.

请参见其构造器和方法属性.

为什么System.Net.Http.HttpMethod是类而不是枚举?

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