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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 ~Bring the CA certificate (if not, not), business handling information and expenses (cash only) to Jiangsu CA outlets for handling (see below for details).张杨一派儒雅，曹氏高雅娴静。[1987] Follow "Walk with God" Jiang Dongyuan Frequently Wipes Tears Beside the President,剧集讲述守护着死亡的阴间使者Black，和看得见死亡的女生姜河蓝在一起，而违反了干涉了人类生死天界的规条，所以失去了世上所有的记忆的奇幻爱情故事。说话间，小葱抱着苞谷过来坐下。