向日葵草莓视频app下载网址

　　刘婶一家，是灯盏九号变化最大的一户，刘婶从一个孤寡佣人翻身做了主杨长帆拿得起放得下，丝毫不掩饰自己的愧疚，可我就是这样，我要做这件事，剩下的，唯有尽己所能。转向张大栓，你说是不是？张大栓一梗脖子，用力咽下嘴中的食物，方才道：那还用说。仔细整理一下，梳理一遍小说内容后，大家蓦然发现范遥竟然爱黛绮丝，爱得如此之深。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.104.1/85.5-1=21%