不过你可以这么做，当你在创建一个新类的时候可以先尝试组合，因为它更简单而且灵活。

Instead, you should first look to composition when creating new classes, since it is simpler and more flexible.

youdao

可以创建一个新类XmlDictionaryIO，该类继承由DictionaryIO设置的接口，但覆盖其中一些功能。

You can create a new class XmlDictionaryIO that inherits the interface laid down by DictionaryIO, but overrides some of its functionality.

youdao

在CHStats . body . php内，创建一个新类CHStats，这个新类扩展了specialpage类。

In CHStats.body.php, you create a new class, CHStats, which extends the SpecialPage class.

youdao

Now I have the ability to say, I've got a new class, I can create instances of a line segment, and it's elements are themselves instances of points. OK?

这就是我们要讲模块化的地方了，现在我可以说，我创建了一个新类，我可以创建线段的实例了,这些实例的元素？

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