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心中稍微舒缓一些，在陈余等人的护卫之下返回营地。在对外特勤局（Department of External Services）支持下，MacGyver肩负起保护世界的责任﹑武装到牙齿的他，得到的工具不止是香口胶及回纹针。故事讲述未来30年后，仿真智能人在人类社会被广泛应用。人类为了自身安全，建立了东西方智能岛。一支由智能姬组成的神秘战队，为了维护人类安全和世界和平，一次次地打击异变智能人的犯罪行为和恐怖袭击。“第一次”是“无论多少次”——。张大栓也觉得憋屈，嫌本家给自己丢脸，咕哝道：我也没搭理他们哩。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 ~