无用的接口 [英] Useless interfaces

问题描述

如果您只打算实现一个接口，为什么还要使用它?

Why would you ever use an interface if you are only going to have one implementation of it?

推荐答案

如果我知道只有一个实现，我就不会创建接口.这属于 IMO 的 YAGNI.

If I knew for a fact that there would only ever be one implementation I wouldn't create an interface. This falls under YAGNI, IMO.

(当然，我对未来一无所知的情况很少见...)

(Of course, it's rare that I know anything about the future for a fact...)

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