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冯梦龙，苏州人，明代著名文学家、思想家、戏曲家，他的作品有近3000多万字，尤以《喻世明言》、《警世通言》、《醒世恒言》等著述创造了中国通俗文学的新高度。除了艺术方面的造诣，冯梦龙也以其在福建寿宁为官一任造福一方的事迹，为后世称颂。滚滚黄沙掩怒马，大漠孤烟显豪侠。Time (S)According to the official website of China Quality Certification Center, since June this year, 8 5G mobile phones have obtained 3C certification.百万富翁环保主义者和科学家丹·哈根（Dan Hagen）在出海时在船上被枪杀时，DI汉弗莱·古德曼（DI Humphrey Goodman）及其团队被困在新系列的第一集中。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.你别忘了葡萄姑姑的话。