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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 ~德高望重的老支书被儿子顶下来后，去城里生活了一段时间长了见识，回到家乡搞旅游餐饮业，到街上利用民间艺术吸引观众，在50岁时实现带领乡亲们富起来的夙愿。为难陷害黎章自己又能得到什么好处？老将军若是有个三长两短，他作为西南最高将领，手下有这样的勇将，他只要指挥若定就行了。秦军每往西走出一步，付出的都是鲜血和生命。杨白(温峥嵘饰)是市京剧团有名的大青衣，周自横(张国强饰)的母亲嫌她是戏子，以死相逼阻止儿子娶她为妻。周自横无奈只能顺从母意，但内心一直深爱着对方；而杨白则心灰意冷，在追求者中用抓阄的方式选择丈夫，嫁给了夏博文(陈创饰)，并生了女儿小白(宋轶饰)……小心心 -- 群星