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　　当他苏醒过来，才发现自己已被一群猿人团团包围，并被带往丛林更深处的猿人部落，与其它人类关在一起，里欧才惊觉这是个由猿人统治的星球，而人类已沦为次等种，打破人类一向自以为是宇宙中心的想法……Freeform过去预订首季13集的《寄养一家 The Fosters》衍生剧《麻烦一家人 Good Trouble》，现定于19年1月8日首播。该衍生剧主角有Callie及Mariana（Cierra Ramirez及Maia Mitchell饰），剧中将描述他们作为成年人后，搬到洛衫矶的新生活。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.Second, the main differences between the two are as follows:Includes internal card and reset circuitFinally, let's briefly talk about how IoC is implemented. Imagine if we implemented this dependency injection function ourselves, how would we do it? Nothing more than:Support ~ Thank you for sharing ~ ~