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Public class Original {Console.log (application.B ()); //aaOne problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.好在书院肯定会赶他走，这就是万幸了，总算替清南村送走一个祸害。Sexual Assault Bannell1953年，新中国开始了第一个五年计划。林然以省委书记的身份回到盘龙市，领导大规模的建设工作，并完成中央布置的建立国防工业基地的重要任务。他的两个养子——烈士遗孤云海东和国民党将领遗孤石明挥，这时已分别担任了大型钢铁厂的公方副厂长和苏联专家组俄语翻译。更让林然惊喜的是，回到盘龙市的第一天，他就见到了失踪20年的女儿林想——国家安全部门的一名侦察员……《生死蜕变》反映新时期打黑过程中遇到新问题讲述了一些曾经黑社会干过后又转入正当行业“洗白”人们因为以前案子被查出来被公安机关一网打尽故事由申军谊饰演省厅特派侦察员钟捍参加抓捕犯罪嫌疑人杜玉明时与刑警队队长郑金（张潮饰）发生了矛盾面对杜玉明突然失踪众人心忧如焚而就此时刑警队队长郑金妻子丁然一却从饭店里打来电话称自己准备服毒自杀……