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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.她来干啥？跟葫芦对视一眼，不确定地问：上门找你算账来了？那也不该等到今儿才来，前儿晚上就该来了才对。冒险达人埃德·斯塔福德这次选择和妻子萝拉、2岁的儿子蓝恩一起冒险，他们将在印度尼西亚的一个荒岛上共度一个月，以寻求更健康的家庭生活。Some people ask me, don't I envy my family for celebrating the New Year together? I want to say that people who have not eaten chocolate will never know how delicious it is and will not miss it.永平帝越发觉得不安。女主未婚夫不幸去世，一直单身，人到中年，遇见了男主，两个人渐生情愫，女主还帮助男主照顾他行动不便的母亲，还借钱给男主的吸钱婆姐姐。结果换来的是背地里男主一句“这种类型我会无聊的”，妈妈一句“你想玩就玩，但老婆要娶这样贤惠的”……果不其然，男主又看上了女二。12月30日，无线电视新剧《食脑丧B》在香港将军澳电视城举行演员造型记者会，艺人江嘉敏，何广沛及陈晓华出席为剧集宣传。江嘉敏在剧中饰演红斑狼疮症患者，至于陈晓华饰演KOL，各自跟何广沛都有感情线。何广沛以丧尸造型现身，他称自己暂时是剧中唯一丧尸。