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２０６５年陈安娜挚爱的丈夫孟马去世，她穿越时空来到２０１５年，找到丈夫年轻的时候，告诉孟马一个秘密：你今年３０岁，你的未来的老婆和你相差了１３岁，她今年只有１７岁，现在就去找她吧！孟马找到１７岁的陈安娜，发现她竟然是个小太妹，而且还有一个不怀好意的同龄男朋友。孟马决定，要实时保护自己未来的老婆，不能在结婚前让他人提前下手！We know that for the above code, Xiao Hong subscribes to shoeObj, an object that buys shoes, but if we need to subscribe to buying houses or other objects in the future, we need to copy the above code and change the object code inside again. For this reason, we need to encapsulate the code.We know that IPTables acts according to rules. Let's talk about rules. Rules are actually predefined conditions for network administrators. Rules are generally defined as "if the packet header meets such conditions, this packet will be processed in this way". The rules are stored in the packet filtering table in kernel space, specifying the source address, destination address, transport protocol (such as TCP, UDP, ICMP), service type (such as HTTP, FTP, and SMTP), and so on. When packets match the rule, iptables processes these packets according to the methods defined by the rule, such as accept, reject and drop. The main task of configuring a firewall is to add, modify, and delete these rules.舞蹈演员李蓉马上要迎来自己的首场演出，跟男朋友曲折也情投意合，准备结婚。在她的事业和人生都要掀开华彩乐章的时候，打击随之而来——就在演出即将开幕之际，双方碰面才知他们竟然是旧识，而李蓉的母亲徐青大失常态，坚决反对他们的婚事。李蓉和曲折拼命抗争，因此，那一段真实的历史被逐渐翻开……邗沟联通了大江和淮水，将来对越国北上至关重要，此事越国早有讨论，章邯征调事情轻重，当即答应。灌婴率领一千五百轻骑兵，马不停蹄地前去追赶。郑老太太听了得意万分，笑得满脸开花，道：可不是么。