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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 ~正是如此。　　故事讲述了北宋年间，八贤王身陷宫女秀珠被杀一案被囚陵宫，为救八贤王包拯等人远赴京城进行调查，抽丝剥茧竟牵扯出一桩尘封已久的宫中迷案“狸猫换太子”。 在包拯的带领下武功高强的展昭，儒雅俊朗的公孙策，柔美飒爽的楚楚，形成了四个性格迥异却各有特色的北宋少年侦探团。(1) at or near the mast top, two vertical ring lights, white at the top and red at the bottom;云影白了一眼闺女，嗔怪道：你都说的什么话？能这么比么？他这么大个男人，骨头都比人重，十斤肉算什么。　　心地善良，正值勇敢的青年教师pin（weir sukollawat kanaros），美丽善良，外柔内刚的河域少女deun(jui warattaya nilkuha),两人在河域下相遇，相知，惺惺相惜，最终深深地相爱。但因为养父养母的收养，deun不得不离开自己生活已久的河域，去曼谷开始新的生活，这预示这她将和自己最爱的pin分开。伴随着伤心和不舍，pin承诺将一直会在这片河域等她回来。本季前期拍摄时，剧中一贯以来的领头人Hotch因为和编剧的冲突被剧组开除，因此只会出现在本季前两集。为了弥补主角的离开，CBS将引入两名新角色，同时把Emily的扮演者Paget Brewster提升为本季常规演员，同时Reid母亲的扮演者Jane Lynch也会在十二季回归。