开闭原则-The Open-Closed Principle (OCP) } 则对应于扩展类Square，在调用既有业务逻辑时： Rectangle square = new Square(); .
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开闭原则 Open/Closed Principle ; Open Close Principle ; OCP ; the open closed principle
开-闭原则 Open-Closed Principle
的开闭原则 Open-Closed Principle ; OCP
设计的开闭原则 The Open-Closed Principle - OO
开发封闭原则 OOCP, Open Closed Principle ; OCP ; Open Closed Principle
开发-封闭原则 OCP
打开、关闭原则 Open-Closed Principle,OCP
开放封闭原则 the open closed principle
那么，这个解决方案遵守了开闭原则么？
如果在某一部分中，一个抽象了的类必须向下转换为特定的子类，那么你就没有遵循开闭原则。
If a class that uses an abstraction has to downcast to a specific subclass in one section, you're not following the Open Closed Principle.
我建议你将开闭原则作为一个设计方向而非一个完全的目标。
I would recommend that you treat the Open Closed Principle as a design vector rather than an outright goal.
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