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The above is DNF's suspicious strategy for the elderly. I hope you like it. Please pay attention to the website for more content.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.李左车对赵国已经心灰意冷。In addition to saving money, buying a one-day bus ticket has another advantage, that is, you can enjoy special offers in restaurants and tourist attractions in Nagoya City, such as giving drinks or souvenirs for meals, or offering a 10% discount on the ticket price for tourist attractions, etc.民国初年，军阀混战时期，船工子弟陈二娃在机缘巧合下，在重庆较场坝开了一家火锅馆。躲债的富家小姐李若兰、为清剿山匪而潜心卧底的魏天南和一心想讨老婆的大龄青年曾宝玉先后成为馆子的伙计。火锅馆刚开张，各种意想不到的事便接踵而来，先是遭遇同行的恶意竞争，几经周折后走上正轨，却又被山匪觊觎。在陈二娃和同行们的努力下，众人不仅协助城防大队、联合袍哥剿灭了山匪，还让深陷赌局的赌徒重获新生、令不孝的逆子迷途知返、帮助侦探捉拿通缉犯、阻止贫苦女子被卖入青楼、带领水八块小贩们抱团生存。在火锅生意逐渐红火的过程中，陈二娃获得了事业与爱情的双丰收，也让渝商艰苦奋斗的精神得以发扬和传承。不过，我可以告诉你一点，天启先生的身份绝对出乎所有人的意料。