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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.待弗朗机反扑之时，我等以逸待劳，方可一战。八月十三日，王家一位姑奶奶，如今是廉郡王妃，见内侄如此争气，就赐了两个女子给他做妾，都是琴艺书画精通的美人，尤其擅长歌舞。　　“魔高一尺，道高一丈”，与此同时，警方已密切注意这股强劲的黑势力，并进行追踪调查，乔云风万万没有想到自己最信任，最亲密的女人却是自己身败名裂的底牌……"I think the battle with these" killer bees "will not end so simply, will it? So did more bitter fighting take place later on at position 149?"Update Time: March 24, 2019, 05:33从婴儿接生到脑部手术，这部纪录片系列带你来到纽约列诺克斯山医院，近距离呈现四名医生平日如何救死扶伤。