在线自拍东京热一本道

21216. If a QQ service is always dropped at regular intervals (all any services), regional reasons and abnormal login of QQ numbers often lead toIn 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.小葱寻了一处河流较窄的地段，爬上一棵树，从怀里掏出一根绳子，系在树干上，嘱咐秦淼在这边等自己，她则用力向对面荡过去。讲述和影星李英爱的表面有着180度不一样的－李英爱小姐，其家庭、爱情和职场上所发生的故事。77mi.cc此剧为韩国最长命的喜剧。It is strongly recommended that the entertainment circle article "Perfect Relationship"-Xi He Clear, which is super sweet, warm and touching.#c show_style();。