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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.不等他反应过来，便送他去黄泉路上父子团聚。卡司还包括Stella Baker、Elliot Fletcher、Xavier Samuel、Chiara Aurelia、Ashley Madekwe等。4、5分钟后的女人说的不错，事实确实如此。为弘扬社会主义先进文化，丰富青少儿的业余文化生活，发现和推出艺术新人，给广大热爱表演的小朋友提供一个学习锻炼以及展示才艺的平民舞台，中央电视台、山东教育电视台、北京天博国际文化传媒有限公司和北京博泰中兴文化传播有限公司联合摄制（推出）了中国首部中小学系列校园课本剧《语文故事》，《语文故事》共104集，是以中小学生校园课本内容为题材，基本遵循课本的原意，以情景再现的形式改编而成的，这样不但增加了孩子们学习的乐趣，而且更能加深学生对课本的理解。　　1453年， 拜占庭首都君士坦丁堡被土耳其侵略者包围。由于帝国的国库逐渐空虚此时的君士坦丁堡只是曾经荣耀的影子，相对而言土耳其帝国却逐渐强大起来。在忍受了拜占庭帝国这么多年后，野心勃勃的苏丹穆罕穆德二世（德夫瑞姆·埃文 Devrim Evin 饰）发起了终结拜占庭帝国的战役。率领骑兵和战舰攻陷拜占庭首都君士坦丁堡，从而结束了东罗马帝国一千多年的统治，以土耳其人的名义征服君士坦丁堡，将奥斯曼帝国建立成一个地跨欧亚的国家，东西方文明在此交汇。