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In real life, China's income tax is divided into enterprise income tax, foreign-invested enterprises or foreign-invested enterprises income tax and personal income tax. For these three types of income tax, each is calculated in a different way. Personal income tax has a personal income tax calculation method, while enterprise income tax has its corresponding calculation method. If we do not adopt the policy mode to realize such a requirement, we will define an income tax class, which has an attribute to identify the type of income tax and a CalculateTax () method to calculate the tax. In this method, we need to judge the tax type and calculate the income tax for different tax types through if-else statements. Such an implementation can indeed solve this scenario, but such a design is not conducive to expansion. If the system needs to add an income tax in the later period, it has to go back and modify the CalculateTax method to add an additional judgment statement, which clearly violates the principle of "open-closed". At this time, we can consider using the strategic mode to solve this problem. Since the tax method is the changing part of this scenario, we can naturally think of abstracting the tax method at this time, which is also the essence of the implementation of the strategic mode.男主角sala（por)是一个非常富有的农场主，但是他偏偏爱上了住在附近的一个牧羊姑娘pim（Namfon)，所以他经常偷偷的观察她。而pim却觉得sala总是爱欺负她，殊不知sala只是想多靠近她一些。pim的双亲都已经去世了，只能与叔叔和哥哥相依为命。但是唯一疼她的叔叔也过世了，而她的哥哥却是一个极其自私的人，一心只想着将仅有的土地和她这个妹妹抵押出去。当她的哥哥与sala的妹妹私奔后，sala将所有的错误都归在了pim身上。由于sala的哥哥临走前向Teenamai借了一大笔钱。并以此为借口让pim嫁给他，而这时sala帮助pim还了这笔钱。作为条件sala让pim扮演他的妻子并且照顾她的女儿一年作为条件。结局如何，这对欢喜冤家上演了一幕幕怎样的故事呢？There are two ways to build a pyramid structure. One is to ask yourself "SoWhat?" From bottom to top and based on facts. The other is to ask yourself "Why" from the conclusion from top to bottom.此时正是隆冬腊月，天气寒冷，士兵们连夜作战，着实有些恼火。Summary Table:一个发生在上海的故事：留学归来的李楠风为给跳楼身亡的哥哥报仇，放弃前途，改名换姓混进仇人林知秋公司伺机报复。他一步步铲除了复仇之路上的障碍，却不知不觉地爱上了仇人。在他彷徨之际，一个神秘人物周天成道破了他的秘密，并且以此要胁李南风协助他吞并林知秋的公司。林知秋破产了，此时，李楠风才发现自己陷入了一个更大的阴谋……其实不用说中国和日本，单是徽王府也足以能杀进尚氏王府，只是眼下没有利益罢了，徽王府拥九州、东番两地，不需要那霸作为贸易枢纽。