国产高清一级A片在线视频

但是——。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.Updated December 25----0.955江南某城津海市，电视台漂亮的女一号主持人陶珊，在“国际周晚会”进入转播的前一刻突然神秘死亡。此案一发，不单在整个电视台内引起一片混乱、同时也把随之跟进调查、破案的市公安局刑警大队，搅进一团难缠的绯案迷雾当中……他觉得不够，夏正的本事不够，虽然他已经很出色了，但还是不够。