面向对象要求找到相关的对象，以适当的粒度将它们归类，再定义类的接口和继承层次，建立对象之间的基本关系。

Object-oriented should find pertinent objects, factor them into classes at the right granularity, define class interfaces and inheritance hierarchies, and establish key relationships among them.

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面向对象要求找到相关的对象，以适当的粒度将它们归类，再定义类的接口和继承层次，建立对象之间的基本关系。

Object-oriented should find pertinent objects, factor them into classes at the right granularity, define class interfaces and inheritance hierarchies, and establish key relationships among them.

youdao