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Lins Concubine 07她要是能下得了这个狠心，母猪也能上树了。就不劳这些人了——谁知他们出去会干出什么事——衙门有的是人。故事发生在室江高中，身为剑道部的顾问，石田虎侍（小西克幸 配音）每一天都过着浑水摸鱼的懒散日子，剑道这项本该令人热血沸腾的运动在他看来，不过是一群小孩子的小打小闹而已。一个契机的到来改变了石田的生活，为了赢得赌注中的一年份免费寿司，石田决定打起精神，为了赢得剑道部的大赛而奋发努力。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.Once upon a time, female journalists were all dressed in neutral clothes and even asked by leaders not to wear skirts during their work. Because when you enter the reporter's office, you carry machines and make floor coverings. In order to interview, there is no difference between women and men.The above configuration process takes only one time, and then you can happily use the service iptables save command to save iptables rules in centos7.