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里氏替换原则是面向对象编程中的一个基本概念,它指出子类的对象应该能够替换超类的对象而不影响程序的正确性。
The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.
我总是相信,如果你陷入困境,也许事情并不顺利,你会变得更强大。
The world is full of people who have never, since childhood, met an open doorway with an open mind.