In this article, you have seen how to create schemas that use inheritance, encapsulation and polymorphism, and even had a glimpse of emerging design patterns in XML schema design.

在本文中，您已经看到如何创建使用继承、封装和多态性的模式，并且还大致了解了XML模式设计中新兴的设计模式。

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You can use inheritance by defining a skeleton, or base, document with block tags.

我们可以通过使用块标记定义骨干文档或基础文档来使用继承。

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We can also use encapsulation and inheritance to add new behavior to existing pages and components.

我们还可以使用封装和继承给现有页面和组件添加新的行为。

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He had to dip into other savings and use up an inheritance to pay the mortgage.

WSJ: Boomers Find 401(k) Plans Come Up Short

They can also use his upcoming bonus and a small inheritance to pay off their credit card debt in 3 years.

FORBES: 5 Steps to Take Back Control Over Your Money

Those who control the estates of authors, artists and collectors have been able to use their cultural and historical artefacts to pay inheritance tax since 1910.

BBC: Art gems donated to pay ?25m tax