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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 ~电视剧《都是一家人》在中国最后一个“原始部落”云南阿佤山翁丁佤寨顺利开机，开机仪式由边疆各族群众自发举办。本剧由林永健 主演，作为首部描写城市民族生活的电视剧作品，该剧讲述了各族同胞为改革开放做出的贡献和为美丽中国增添的时代光彩。Netflix推出的芬兰剧，一位才华洋溢的干探为了能够有更多时间陪伴家人而选择留在小镇工作，然而，他却不其然被卷入一连串令人困扰的谋杀案愚人千虑必有一得何永强一身白袍，头发扎得极是整齐，下车举目四望过后，最后才望向杨长帆，随后露出一副哎呀，好巧啊，你也在这里。你看我这手。