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Imagine a scene where there is an electric lamp with only one switch on it. When the light is on, press the switch at this time and the light will switch to the off state. Press the switch again and the light will be turned on again. The behavior of the same switch button is different in different states.The template method pattern consists of two parts, The first part is the abstract parent class, The second part is the subclass of concrete implementation. Generally, the abstract parent class encapsulates the algorithm framework of the subclass, including implementing some common methods and encapsulating the execution sequence of all methods in the subclass. The subclass can inherit the parent class and rewrite the methods of the parent class in the subclass, thus realizing its own business logic.花样爷爷第1季欧洲&中国台湾篇If you can play doubles, you will be prompted on the interface.Add a method called increment_number_served (), which allows you to increase the number of people eating. Call this method and pass it a value such as the number of diners you think this restaurant may receive every day.你……我如此宠爱于你，你竟然如此狼心狗肺……范文轩看到如雪的时候，愤怒不已，怒目圆睁地伸手喝骂。CommonJS was originally a project started by Mozilla engineers in 2009. Its aim is to enable JavaScript outside the browser (such as server-side or desktop-side) to be developed and collaborated in a modular way.