Other benefits using object oriented techniques would include re-use of common functionality between multiple versions of classes.

使用面向对象方法的其他好处包括可以重用不同版本类的通用功能。

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For instance, they wanted to maintain multiple versions of a service contract, or handle the incoming XML directly, without it being converted to an object first.

例如，他们想要维护一个Service契约的多个版本，或者直接处理得到的XML，而不用先转化成对象。

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