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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.翘儿抬手要做才想到，还得用针呢，你没说。主持人邓璐博士高站位，深度对话传说中的12位科技大咖，真实展现新时代科技人的智慧、担当与思考，同时，直面局限与失败的可能。District 1 Qingxin Fuquan Association鲁南，运河岸边，微山湖畔，有一大片秀美如画的石榴园，一部清新欢快的农村轻喜剧正是在这片令人迷醉的石榴园里热闹的开始了。三十集电视连续剧《石榴花开》以中国社会主义新农村建设为宏观背景，将农村群众最为关心的“土地”问题作为核心线索展开情节，讲述了以正直忠厚的石义、聪明能干的香兰、热心却不讨好的村长士元以及心气儿高、歪点子频出的刘三点等人物为核心的农村群众，为追求各自心中勾画的美好生活，在“土地承包”、“爱情婚姻”、“儿女问题”等等一系列不同家庭的矛盾冲突中盘算着自己的小九九，又因剧中人物不同的个性特点、思想观念、机缘巧合等因素，一连串扣人心弦、令人感动或使人啼笑皆非的小故事发生了。在经历了许多波折后，石榴园里的村民们终于找到了属于自己的幸福归宿。才两天时间，首印的五万册《第一次亲密接触》和五万册《白发魔女传·上册》已经销售告罄。When entering the game and receiving the character information, Gu Xixi did not refrain from swearing at that time: "This