Clemens szyperski discusses the distinction between interface and implementation inheritance in his excellent book Clemens szyperski在他的一篇优秀书籍
Because interfaces do not support implementation inheritance , the pattern that applies to classes does not apply to interfaces 由于接口不能支持继承,用于类的模式不能用于接口。
This silence is odd , considering that there is a simple mechanism in xml schema that can be used to provide the same effect as implementation inheritance : the extension mechanism 这种沉默是暂时的,因为xml schema中有一种简单的机制可以用来达到与实现继承同样的目的:扩展机制。