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大苞谷忙上去搀着娘。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.叶卡捷琳娜正在进行激烈的权力斗争，宣布战争，镇压叛乱……在她的肩上-一个沉重的负担的权力。俄罗斯的命运掌握在她的手中。春桃是一个美丽而善良的女子,在上世纪30年代那个战火纷飞的年代,她的命运跌宕起伏，经历了一段催人泪下的传奇故事。　　二妹小玉（万绮雯饰）刁钻俏皮，常与海珠对立。她遇到了性格浪漫的小学同学李超荣（又名“超人”，彭文坚饰），两人情投意合，并闪电结婚，小玉的家庭生活不如意，幸得海珠多番开解，兄妹终冰释前嫌。2. 5. Artistic Performance徐阶告退，一路牙齿咯咯作响。