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飞影在这个地区的投入和关注是极大的，因为很多事情的重要性，有时候可能需要有人去办一些重要事情。可是，当他听说黄豆兄弟几个抱着孩子、牵着狗。史兰祥拥有心爱的丈夫和一双可爱活泼的一双小儿女小凡和小兰，这个平静快乐的家庭却因为史兰祥的好朋友许绿如的介入和费若凡的不贞而破碎崩离，史兰祥带着小凡和小兰离开伤心地重新加入社会，开始崭新的生活。在事业上，史兰祥经历了失败挫折与成功喜悦，在感情上，她面对夏海默、柯尔、崔仁的追求，情爱的纠缠与现实的压力，她该如何抉择？回到家中，面对单亲家庭的种种亲子之间的问题也让她成长许多。经历了这段有起有落的人生旅程，史兰祥和夏海默有情人终成眷属，每个人也各有所分、各有所归，朝着理想目标继续奋斗努力。这天下之事，还有多少自己不知道的呢？后来他全力支持齐国田荣。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.