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龙且禀报道：霸王、当真没想到尹旭会横插一脚进来，救走了英布的妻儿，也不知道他有什么目的。杨长帆说着把钱袋塞给翘儿，你回屋整一下，给我留10贯碎钱在手上零花，其余收好。问题太多了吧？毛海峰又抿了抿嘴，看看你的处境，是你问问题的时候么？死也要死个明白不是？错了，大错特错。说话间，暮色降临，张老太太他们回来了，洗脸换衣裳，准备吃饭。Select can be included in an event, but its result disappears as if it had not been executed.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.After graduating from college, this person changed jobs seven times in three years, because he was too haggle over every ounce, and every unit did not like him. Li Shanglong said: "He is poor, not only in his family conditions, but also in his vision and pattern."