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Source: Brother Guo葫芦就是为了咱们活着回来的。不过你放心好了，本少爷一定会照顾香儿的。3 家第三刑侦小组由三名警官组成。他们是复转军人靳德祥、刘刚，警校毕业生李小奇。这个小组的职责是侦破、打击形形色色车匪路霸的犯罪活动。大学舞蹈系学生柳芸儿，宏大公司业务部经理虞小娟，丽都酒店经理郭薇，三位年轻、漂亮、事业有成的现代女性，向人们诉说着一段段传统的爱情故事。从老山前线转业现任宏大公司总裁徐鹏、失学流浪儿小四川及杨小莉、刘荣荣等，从不同的矛盾当中体会他们对这个刑侦小组的情与敬。The reason why the logic for creating an object is put into a separate class is that it can be used by multiple clients. And separates the creation and use of objects. However, this design also has many defects. First of all, SimpleFactory is a specific class, so we must program for the implementation, making the system lose its flexibility in this respect. Second, if we add new products, we have to modify the code in SimpleFactory, which violates the opening and closing principle. The above model is also called simple factory. He does not appear in GOF mode, it is more like a programming habit.