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Each object has its corresponding state, and each state corresponds to some corresponding behaviors. If an object has multiple states, there will be many behaviors. Then the judgment of these states and the behavior completed according to the states will lead to multiple conditional statements, and if a new state is added, the existing code needs to be changed. This kind of design obviously violates the principle of opening and closing, and the state mode is used to solve such problems.Thank you very much for using the People's Network service! In order to further respect and protect the relevant legitimate rights and interests and privacy of users, a new version of the user service agreement has been launched. This agreement contains the specific usage specifications of our platform, the terms of service of the platform and the terms of our collection, storage, protection, use and sharing of your personal information. Please read carefully and fully understand the relevant terms, and the key terms have been marked for you to help you understand the ways to safeguard your relevant rights and obligations and privacy rights. You click "Agree and Continue" to mean that you have read and agreed to our "Common People's Network User Service Agreement". We will do our best to protect your personal information and legitimate rights and interests. Thank you for trusting and using Common People's Network!尤其是走出不远之后，那一阵阵咳嗽声，更让人有些不忍。故事以加藤实秋的小说「Maison De Police」系列为原型，描绘了主人公新进刑警牧野ひより（高畑）来到了只有退休警察居住的共享房屋「Maison De Police」，被一群能力超群知识丰富前警察“大叔”们呼来喝去的同时，解决了一个又一个案件的故事。DNAT: Destination address translation.顾小玉满脸黑线，果然正常人和不正常人之间是很难正常沟通。塔克（汤姆·哈迪 Tom Hardy 饰）和FDR（克里斯·派恩 Chris Pine 饰）是美国中情局的顶尖探员，两人各自身怀绝技，并且是生死与共的最佳拍档，出任务都是屡