2020国产在线视频不卡一区

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."Lack" of Natural Talent//273On a tireless quest to find his missing daughter Jody, Nelly will go to any length to uncover the truth and he'll discover more about himself and those around him than he could have ever imagined.男校风云　　天兵一号赖虎(林道远饰演)，虽然外形壮硕，名字罢气十足，但却是个本性懦弱、胆小如鼠的纸老虎。他被黑社会教父老爸把他送入军中改造，是否能脱胎换骨，蜕变为铁铮铮的男子汉？张大栓两口子见儿子媳妇把孙子孙女鼓动得这样，也不好意思颓废了。