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Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:Note: When adding rules, the order of the rules is very important原著小说中，一个仁义，便抹掉了张无忌所有的仇恨，一个善良，便让张无忌智商变成负数。　　就当计划准备实施当天，妻子疑似遭人绑架。对方索要两亿日元赎金，否则将杀掉真理亚。看似老天帮助了幸平，然而接下来的事实却让他惊恐万分可不怕别的，就怕阎王爷勤快，事事亲督，每日还四处走访百姓，七八天来，县衙已有十几位吃了棒子，我这信拖一天再送，怕是我也要挨打了。->-> [reactReconciler.js]->王尚书道：讲来。