亚洲区色欧美另类图片小说区导航

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.几年前父母因车祸意外离世后，“饿不死活下去”就成了她奋斗目标，她白天上学，晚上在便利店打工来维持生计。可能是父母的离开对当时年幼的她刺激过大，自那时起杨绵绵的性格发生剧变，原本热情开朗的她变得孤僻冷漠，仿佛世界毁灭也和她无关，医生说这是精神疾病中的一种，属于精神上的高度自我保护。而这种对于智商情商双高的杨绵绵来说，并不是什么雪上加霜的事——因为，她发现了另外一个奇妙的世界：她可以和身边的万事万物对话交谈！记恨项羽自然也就不想帮他办事，比如对付尹旭的部曲，虽然心中怒火滔天，恨意浓重。两个女人从“面和心不和” 到相互理解，不管未来再多风雨，也会扛着这个家，一起面对。