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清晨，护林员吴忧和强叔一起在巡山过程中发现一具由熊刨出来的尸体，死者是吴忧的初恋覃洁。因为吴忧和覃洁两人在死前见过面，他害怕被当成嫌疑人，从而走上了漫漫逃亡和寻找真凶之路……侨居法国的华藉私家侦探马力某次受富商卓越的委托替其找回流落上海多年的女儿卓宁，越交给力唯一的线索只是宁的一个电邮地址和透露宁曾表示要到上海，解开母亲临终时所说的一句找寻“海角红楼”的秘密，但是并没有人知道“海角红楼”是什么。Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.杨长帆完全处于木讷之中，自己还有好多事要处理呢，对付倭寇是你们的事情，叫上我做什么？黄胖子反应快些，踏上一步扶起杨长帆，小声道：兄弟，你安心去吧，货的事不急。LINUX: Linux uses the variable tcp_max_syn_backlog to define the maximum half number of connections that the backlog queue can hold. In Redhat 7.3, the value of this variable defaults to 256, which is far from enough. A low-intensity SYN attack can fill up the half-connection queue. We can modify the value of this variable with the following command:The death toll from World War II in China has been unclear because the statistics are unclear. Scholars estimate that there are 12-18 million people. However, after the 1990s, the data gradually became clear: about 18 million. Among them, the death toll of soldiers is about 1.48 million, of which 1.35 million are from the national army, more than 100,000 to 120,000 are from the communist army (including guerrillas), and the rest are civilians.