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庞取义这才松了口气，这位将军果然明事理，不至于在这方面挑刺儿。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.《新青年》横跨1907年至1927年20年中国历史，讲述江流（朱亚文 饰）、魏国（蒋恺 饰）、王应（齐奎 饰）、周鲁（刘向京 饰）等一群自强不息、敢于担当的新青年，为人民谋求福祉、为国家探索理想、为民族找寻出路而矢志不渝、百折不回的曲折历程。靳子谦暗中爱慕着游加勒，但游加勒的芳心早已经属于雷建冲（郭政鸿 饰）。雷建冲是父亲最强劲的对手，他为人阴险狡诈，为了谋取利益不择手段。在雷建冲的挑拨之下，游一桥和靳子谦之前产生了误会爆发了矛盾，他们决定靠桌球来一决胜负。《下女们》讲述了不惧身份和阶级制度，和坐过山车一般激烈起伏的命运勇敢抗争的下人们，展开罗曼史的浪漫史剧。在这部古装剧中可以看到，闺阁小姐、风流公子、型男奴隶等人物的热闹登场。1899年的圣诞节节期,浓郁的假日气氛笼罩着首都大城彼得堡,纷纷扬扬的大雪和结冰的河道似乎也被世纪末的狂欢点燃。命运的安排下,掌灯人之子马特维（ФедорФедотов饰）和高官女儿阿丽萨（СофьяПрисс饰）在节日的街头相逢。马特维唯一的财富就是他的银色溜冰鞋,阿丽萨则梦想研习科学,摆脱父亲和未婚夫阿尔卡季（КириллЗайцев饰）的控制。两个世界的交错究竟会带来怎样的冰上奇缘？南宋宫中两大阵营，皇后之子大王子赵贵诚（敖嘉年 饰）、及慧妃之子二王子赵贵和（黎诺懿 饰）皆觊觎帝位。负责献计的左右丞相余靖（黎耀祥 饰）和董昭（郑则士 饰）本为世交，亦师亦友，共同辅助贵诚。但余靖父亲余博文（张国强 饰）因功高盖主失言而招来抄家之祸，与弟余清（邓健泓 饰）及妹余晴（唐诗咏 饰）从此失散，弟弟被骗入宫做太监受尽凌辱，妹妹失忆幸得漕帮帮主之女严三娘（田蕊妮 饰）收养，余靖更误以为董昭为一己私利出卖父亲，与董昭反目成仇，不惜投靠大奸臣杨次山（李国麟 饰），杨家辅助贵和，两派势成水火，恶斗不休，展开连番明争暗斗。一场造王之战，连场朝廷杀戮、尔虞我诈、幕幕触目惊心……