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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.This paper summarizes the working principle, structure, specifications and models of time, and other related knowledge to help you understand the relevant contents of time relay more comprehensively.1949年10月，新中国刚成立不久，百废待兴，各行各业急需人才建设。为了更好发展国家建设，中国高层特别派出一批专家搭乘专列前往苏联学习。今非昔比，国力军力，早不是洪武永乐时代退可坚守，进可远征的程度。小说改编的剧，男主Kimhan跟女主Mookkarin曾经两情相悦，并且有婚约，但是一个突如其来的悲剧，让爱情变成了仇恨。Mon，男主的姐姐死了，她的丈夫Tada被指责杀死了自己的妻子，Tada是女主的哥哥。最后法院宣判Tada无罪释放，因为女主为 哥哥做了不在场证明，Mon的死被认定是自杀。
　　男主不相信判决，决定如果法律不能惩罚Tada，那就由他自己来。他誓言要为姐姐报仇。（中间男主应该是离开了）
　　为了回到女主身边（报复），男主跟女主的一个朋友，名叫Phaktra的妹子结了婚。多年后他重回女主的生活中，只为报复女主和他的哥哥。男主假装依然爱着女主，因为女主任然爱着他，让女主心甘情愿成了他的情人。但是当女主怀孕了，他就露出了本意，决绝负责。被癌症折磨的女主的哥哥Tada祈求楠竹对自己妹妹负责，他愿意付出所有，甚至提出了自杀交易，以满足男主渴望复仇的心。即便是寡人真的大梁永远保留他梁国之地，他也未必相信。