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戚继光也同样难受，他虽然精明一些，但也没法精明到胡宗宪这种地步。虽然不知道他们是怎么跟上杨长帆的，总之狼兵真的可以平倭。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:Updated March 28《永乐英雄儿女》，讲述了明朝开国皇帝朱元璋驾崩，皇位不传子而传孙，由皇孙朱允即位，称建文帝。燕王朱棣不甘自绝，攻陷京都，改年号为永乐。永乐雄才大略，文武双全，史称永乐大帝。而建文帝带几名近臣出逃，一直下落不明，成为明朝宫廷一大秘史。于是永乐背负“篡位”骂名，外有阿鲁台觊觎国土，内有建文旧臣图谋复位，家中还有一个让他头痛的公主蛮儿不停地惹是生非。《永乐英雄》的故事自此拉开帷幕。而这故事，又因了一个乡间小子冯天赐的介入，而变得格外扑朔离奇。永乐江山，英雄多情。永乐英雄儿女纷纷出场，演一段千古帝王梦，痴心儿女情。为了安全起见，只能是沿河对峙，请求援助，再做其他打算，反正身后敖仓无数的存粮。