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Month, no zero display, 1-12One 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.　　女高中生真生是石川的万千崇拜者之一，某天她丢失了石川演唱会的门票，为了能看到偶像，真生不惜出卖肉体。这次经历改变了她的一生，她不幸感染上HIV病毒，在援助交际泛滥的高中里，真生无疑成了异类。所有的人都离她而去，在极度绝望之际，她邂逅了石川，两个失意之人的生命从此被紧紧绑在了一起……三个月前，某市发生了一起恶性绑架杀人案。三个月后，凶手与被害人都死于车祸。初出茅庐的女警韩烨找到了案件的幸存者林超凡，向他求证案件发生的经过。但随着调查的深入，韩烨发现林超凡的很多证词都存在漏洞，再三逼问之下，林超凡无奈坦白了另一个版本的故事，但案件真相远没有这么简单，几乎每个人都在说谎，而故事也开始不断反转。一别数年，也不知道他还好吗？同一片月光下，千里之外，同样相思……(未完待续……)s show_style();。因他识字，熟悉律法，从而受到秦始皇赏识，提拔为中车府令。Children. Add (node);