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CPS1/2/3 substrate Neogeo substrate, other substrate simulator test installation.Calculation Method of Panel Damage:华夏影视三大巨头之一，同时也是世界电影业五大巨头之一的青龙影视打算升级产业链，在国内外大规模投资布局，武界出版社正是青龙影视斥资创建的。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.(未完待续……) show_style();。Event is a procedural database object called by MySQL at the corresponding time. An event can be called once or started periodically. It is managed by a specific thread, which is also called "event scheduler".