国产精品日韩欧美在线第3页

2018-03-09 10:33:30In 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.What's wrong outside? I didn't see it at all, because there was a curtain on the door and a big quilt was hanging. Because there was air conditioning, it was hot at that time, and the sound of "ah" and "splash" was heard. After that, it was also called Qiu Ronghua, and so was it.From this point, we can draw a conclusion: the Vietnamese army has not only planned for a long time to use "living biological weapons", but also conducted a lot of research and drills, even live ammunition tests, before using them. According to the obtained data, it has formulated corresponding usage methods and tactics, and may even form relevant written regulations and regulations.翘儿只笑了他几句，待洗漱完毕，把东西都安置好了，这才吹了灯。苏樱最后会和小鱼儿在一起吗？啧啧，我还没有看过这样叼炸天的女主角……新来的同事李万河说道。朱师傅他们也照应不过来，容易出事。