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大殿之上，尸位素餐的人还真不在少数。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 ~这一刹那，萧月婷猛地推开了丁洋，谁也不知道她小小的身躯里竟然藏着这么大的力气。他心下稍微一算，上火绳点引信的时间，已足够冲至阵前。但是原来是好朋友。为了不破坏这种关系，必须尽快打倒魔王恢复原来的样子。《绝代双骄》原著的人气并不比《笑傲江湖》小，而且双主角也挺适合拍电视剧，导演还是一线知名导演赵守正。