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习惯就好。The following demo is what I saw in the book, but it doesn't matter. We just understand the use of the strategy model. We can use the strategy model to calculate the bonus.这个是一个讲述霸道总裁肖潇在与小舅子梅若彬的相处中琐碎故事，却在越来越不稳定的精神状况和越来越复杂的人际关系里发现自己生活在一个谎言世界里的故事。她转头向白果三人笑道，鲁三叔他们其实都是好人，谁也不想生下来就当山匪不是。A little first and a little more tomorrow nightThe execution results are consistent with the previous code, but the benefits of using the state mode are obvious. It can localize the relationship between each state and its corresponding behaviors, which are scattered and encapsulated in their corresponding state classes, making it easy to read and manage the code. In addition, the switching between states is distributed within the state class, which makes it unnecessary to write too many if, else conditional branch languages to control the switching between states.