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State mode refers to allowing an object to change its behavior when its internal state changes. The object seems to have modified its class. Divide this sentence into two parts by commas. The first part means to encapsulate the state into a separate class and delegate the request to the current state object. When the internal state of the object changes, different behavior changes will be brought about. The second part is from the customer's point of view, the object used has completely different behaviors in different states. The object seems to be instantiated from different classes, but in fact this is the effect of using delegates.　　在经历千辛万苦后，海涛终于和叶子走到了一起，也找到了新的工作，一切都在朝好的方向发展，可叶子对自己的身份仍感介意……《以家人之名》是由丁梓光执导，谭松韵、宋威龙领衔主演，张新成特别出演，涂松岩、孙铱、何瑞贤、安戈等主演，张晞临，杨童舒，友情出演的青春成长治愈剧。If black or white is directly used for mixing, it can produce obvious darkening or brightening effect, but it will not produce pure black or white in the coverage area.只是眼下的形势该如何处理呢？无法确定是敌是友，当真是有些麻烦。本剧讲述了一所国际学校内音乐社和篮球社之间发生的故事。一个由挑剔组长尚桀、专注专业的女法医夏萤、万金油痕迹鉴定员李学凯，天然呆信息分析员宋咪，以及富二代心理侧写师英鸣组成的非常规特案组，集齐了局里各种“不靠谱”的人，通过通力合作，他们相继破获了各种离奇的凶杀案，一出手就抓住了逃窜了三四个城市，以制造意外为杀人手段，穷凶极恶的连环杀手，一战成名，特案组之后又接连破获了南山公园的碎尸案，离奇的灭门惨案以及抓获反侦查意识极强的兄弟杀手。