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张槐问他为何不上去跟他们闹。把头就探向窗外。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 ~上个世纪二三十年代，上海滩出现了无线电台，一时间，上海居民耳目一新，一些私人电台蜂拥而起，不仅播放文娱节目，还负责传递商业业务。阮清恬在学校里学过无线电知识，她因为帮助任浩铭建立电台，从而和任浩铭相识了。任浩铭由于一个误会，迁怒于阮清恬，他将阮清恬最重要的传家宝流苏耳环拿走了。阮清恬必须要拿回耳环。在这过程中，阮清恬凭借她的善良和聪慧，赢得了任浩铭的好感与尊重。最终，阮清恬和任浩铭因为爱情而接受彼此，那对象征着幸福如意的流苏耳环，被任浩铭戴在了阮清恬的耳朵上，他希望幸福和如意永远伴随着这个善良的女人。这一对有情人终成眷属。正是焚书坑儒，才抹灭了穿越者项少龙的所有痕迹。Chang is good. "Zhang Xiaobo said.