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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 ~一个黑道老大，生了一对双胞胎儿子，为了让他一个儿子将来有出息，不要在黑道上打打杀杀，就把他送给了一对夫妻，这对夫妻把他培养成了一个警察，他们之间互相的明争暗斗。此剧为网络剧《恋爱播放列表 第四季》的延伸剧，首次在电视萤幕上播出。此剧将延伸网络剧《恋爱播放列表》系列的世界观，由在玹、朴慧秀及过往已参演上一季的裴贤圣等人主演。The puppy was killed and abandoned in a corner of the yard.讲的是前世今生的鬼故事，男主前世是个皮影戏艺人，今生是大明星，他老屋有只鬼一直缠着他不放，要杀掉和他在一起的所有女人今年是KinKi Kids出道20周年。为了纪念这一点，意外地在电视剧的最后一集里，说着“20年后，再在这个地方见面吧”而分手的他们，在今年夏天Rules for OUTPUT can exist in: raw table, mangle table, nat table, filter table.