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For example, if we want to implement a JS function, Such as form validation, Then if we don't use the policy pattern in javascript described in the previous chapter to solve the form validation encapsulation code, It is a temporary form validation function written by itself. Certainly without any encapsulation, Then at this time, we will pop up a prompt to the user for whether the two values are equal. If there is a form verification on another page, their judgment method and business logic are basically the same, but the comparison parameters are different. Should we consider writing a form verification code again? So now we can consider using the template method pattern to solve this problem. Common methods are extracted, and different methods are implemented by specific subclasses. This design code also has the advantages of stronger scalability and better code ~《乡里彩虹城里雨》是一部反映现实题材的电视连续剧。该剧以改革开放涌现的“打工潮”为历史背景，全方位描述青年男女外出务工及其留守在家的孩子、老人的生活，展现当前农村劳动力向城市转移出现的矛盾，揭示新农村建设的紧迫性，也塑造了一群可亲可爱的当代农民群像连番的四面作战，若只有八千人哪里能做到？城墙损毁的十分严重，在这样下去，破城是迟早的事，若是被人包围了就大大的不妙了。10. The one-dollar hot pot only takes 2 minutes from ordering to dining, paying more attention to the concept of time and making it more convenient.泰德（凯瑞·莎勒 Kerry Shale 配音）从小就梦想成为一位伟大的考古探险家，并一直为此而努力着。长大后，虽然他只是一个普通的建筑工人，日子穷困潦倒，并且遭遇了各种挫折打击，却一直坚持在追梦的路上。机缘巧合之下，第七次失去工作的泰德代替生病的考古教授前往秘鲁，寻 找传说中的印加黄金城。隐藏了真实身份的泰德与教授的女儿（菲奥娜·格拉斯科特 Fiona Glascott 配音）一道，带着打开失落之城的钥匙，来到美丽神秘的热带沙漠与丛林，共同踏上了一段的探险之旅。After we have modified the rule, if we want the modification to take effect permanently, we must use service iptables save to save the rule. Of course, if you misoperate the rule but do not save it, then after restarting iptables with the service iptables restart command, the rule will return to the same appearance as it was when the/etc/sysconfig/iptables file was last saved.这是一部针对3到6岁学龄前儿童的动画片。这部动画片以独特的儿童视角，对儿童社交理念的倡导，对低幼市场的精准把握，以及产业化的IP运营策略，均体现出不俗的品质和市场潜力，成为2018年低幼动画市场的黑马。