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艾瑞克（John White 饰）算得上是一个标准的失意青年了，连在家中打个手统也造成祖母受惊去世的恶果。艾瑞克与女友翠西交往两年，但一直未能上垒，现在已是全校最后的处男、公认的笑柄，这些还不算，他是大名鼎鼎的“硬条”家族的一员，堂兄德维特等人名满江湖，给他巨大的心理压力。翠西终于同意与艾瑞克共赴巫山，岂料两人时运不济最后又发展成一场屎尿屁笑话，幸好德维特的学校要举办考后大裸奔活动，艾瑞克与死党匆匆投奔堂兄希望用狂欢宽慰心怀……吸血鬼确实存在，就在此，在我们之中。 今时今日在巴黎，玛莎·拉德斯库（苏珊·克莱门特 饰）的家人住在地下。 但是，当16岁的多娜转变成一种新型的吸血鬼时，他们脆弱的平衡便开始破裂。 半人半吸血鬼，多娜学着应对她的双重本性。 日间，她对于朋友们是个危险的存在。 夜间，她独特的魅力又被吸血鬼群体垂涎。以日本法医学研究院所为舞台，真实呈现犯罪调查过程和法医们的调查，根据尸体上留下来的微小细节解开各种案件的真相。本片根据已故作家陈忠实的同名小说改编。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.The landlord refuels