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Due to this similarity, JavaScript programs can use the built-in eval () function to generate native JavaScript objects with JSON data without a parser.是啊，张翠山、殷素素死了七年，倚天剑也放在武当大殿七年了。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.蒯彻不好知直接点明，只是说道：齐王可闻假道伐虢之典故？春秋时期，晋国想吞并邻近的两个小国：虞和虢，两国关系不错。北方某个大城市里，有一个按照国家相关法规设置的一个“CDC行动组”。我们着重表现的这个小组主要人物大概有五、六个，小的二十几岁、刚毕业的学医的大学生；最大的组长三十七八岁，国内读医学本科，留学博士，在世界著名实验室培训过。组里几个人是按照公共卫生各项需要专业配备的，每个人都是该方面的专家。《绿箭侠》续订第7季。苏志燮确定出演MBC新剧《Dr.Lawyer》男主，时隔4年出演韩剧。