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——初衷很多人认为《回家》是跟风之作，看着文豪流、作家流还有潜力，想要趁机捞一笔，但真不是这样。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.我以为，出家在家一样，在朝在野也一样，这日子是我喜欢的，就够了。本剧把镜头对准二十世纪八十年代初的一对姐妹，由于对爱情和幸福的理解不同，两人也因此踏上了截然不同的命运旅程。在对理想、爱情的追寻中，齐豫的《橄榄树》的歌声紧紧伴随着我们的主人公，诠释着那个美好纯真的年代。 穆杉和穆桐是生活在普通人家的两个女儿。姐姐穆杉是个像水杉一样漂亮、文静的姑娘，她在医院当护士，爱好文学，向往着美好浪漫的爱情；妹妹聪明漂亮、性格外向，高考屡屡落榜，却希望能够主宰自己的命运。妹妹羡慕姐姐有个清闲、干净的工作，还有一个英俊能干的在部队当连长未婚夫——秦川。幸福似乎早就准备好了在穆杉的前方招手，然而，国栋的闯入改变了她的生活轨迹...I like what Sister Ping said: "I like to do one thing instead of insisting on doing one thing." Many people say that one must stick to it. If it grows in your blood and is as natural as eating and sleeping, it does not need to "stick to it" and just do it. Saying "stick to" is because you don't love enough, so you need to remind yourself all the time.