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不过是些庄户人，胡少爷何苦跟他们一般见识。一九五零年，蒋介石集团借美国入侵朝鲜之机，派遣大批特务潜入内地制造混乱。以“血狐狸”钱孝义为头目的特务小组潜入重庆，准备实施一系列破坏活动。获悉情报后，解（河蟹）放军迅速成立了侦破小组并任命侦察科科长雷启明为组长，雷启明设伏八仙庵，但因侦察员的身份暴露而打草惊蛇。为了彻底消灭敌人，雷启明吸取教训，改变策略，利用“血狐狸”与“狼”互不相识且还未接上头的条件，假扮“狼”张为农，进入山中，深入虎穴与敌战斗。凭胆识和机智，雷启明赢得了以叶兰香为首的匪徒的信任，并顺利抓获前来与血狐狸接头的“狼”张为农。而同时也藏在山中的“血狐狸”识破了雷启明的身份。血狐狸在其同伙的帮助下，绑架了雷启明的妻女，雷启明深入虎穴，救出妻女，并全歼了敌特，保卫了和平。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.(1) Two vertical ring lamps, green at the top and white at the bottom, or a number consisting of two cones vertical at the top and bottom and butted at the tip;郑氏见他明白过来，便淡声道：做了就做了，也不必后悔。在巨大利益的诱惑下，沙加路的前辈曾尝试摸一摸狮子的屁股，在狮子眼皮底下的屯门岛划地盘踞，怎奈狮子微微眯眼一记重拳捶来。这一带的山也都是张家的，大多种的是橡树，只路边山坡上种的是各种果树或者竹林。