面向对象设计原则--里氏替换原则(LSP)和依赖倒置原则(DIP)

面向对象设计原则–里氏替换原则(LSP)和依赖倒置原则(DIP) tags:设计模式web LSP–inheritance should ensure that any property proved about supertype objects also hold for subtype objects.编程 DIP–the principle states: A. High-lever mo

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