The object-oriented solution to such a problem is the factory class.

针对这类问题的一种面向对象式解决方案是使用工厂类。

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And the service-oriented inner class is SERVICE_FORMATTED.

面向服务的内部类是SERVICE_FOR MATTED。

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In object-oriented programming, an object is the product or instance generated by a class.

在面向对象编程中，对象是产物或被类产生的实例。

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Logic class structure is highly important to object-oriented design.

合理的类结构对面向对象设计阶段起着非常重要的作用。

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Logic class structure is highly important to object-oriented design.

合理的类结构对面向对象设计阶段起着非常重要的作用。

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