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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.本片改编自美国作家库柏“皮袜子”系列小说中的第二部。 1757年七年战争期间，英法两军在北美殖民地激战正酣。军官邓肯带队护送长官之女可娜（Madeleine Stowe 饰）前往威廉亨利堡，半路遭法属印第安人埋伏，莫希干族最后的战士——金卡加（Russell Means 饰）、安卡斯父子与白人霍克依（Daniel Day-Lewis 饰）出手相救。但抵达要塞时他们发现这里已陷入战火，要塞长官门罗与邓肯做事强硬，不肯放走民兵自降战力，并将霍克依监禁，可娜这时已同霍克依相恋，但却无力援救。英军战事不利弃堡投降，印第安人马瓜带领族人向英军寻仇，可娜与霍克依失散后被马瓜带走，霍克依、金卡加、安卡斯一Naluo Six Methods: Total damage * (1 +0.2) when casting big handprints.CBS All Access续订《傲骨之战 The Good Fight》第二季。PC players are not human seriesThe result of the attack is similar to that of a normal JOP attack, and a print of the operation log log is added to it.