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# echo 1/proc/sys/net/ipv4/tcp_syncookiesThe 0 delegate DoSth defines the parameters and return types of the method郑氏见婆婆气狠了，也上前哄劝。The above is only a model of "Long En" bicycle, If you need to generate other types of bicycles, Other subclasses can be written. The most important advantage of factory mode is that some of the same methods can be implemented. We can write code in the parent class for these same methods. If we need to implement specific business logic, we can rewrite the parent class's methods in the subclass to implement our own business logic. In terms of professional terms, there are two points: First, weaken the coupling between objects and prevent code duplication. Instantiating a class in a method eliminates repetitive code. Second: Repetitive code can be written in the parent class. Subclasses inherit all member attributes and methods of the parent class. Subclasses only focus on implementing their own business logic.司马欣道：并非是汉王给了我什么好处，而是识时务者为俊杰，现在只不过是混个活路罢了。尹旭点头道：说的不错，天气放晴，洛水水位也回复正常，这个时候是我们出兵的最好时机。世代相传的诅咒，他注定孤独一生，可却偏偏遇上了苏流安那个闯进人心的妖孽，开始了漫长追妻路。“主上，有人要推主母下水！”不急，扔井里泡六个时辰去。“主上，有人公然对主母不敬！”“不急，到最热闹的街上给剁碎了去。”“主上，主母又溜了。”“不急……等等，哪个方向？！”他是权倾朝野的缪王、富可敌国的商家家主，他一人之下，呼风唤雨，只手遮天，却在追妻路上掉了节操。