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Mediator pattern defines a mediation object to encapsulate the interaction between a series of objects. Intermediaries do not need to explicitly refer to each other between objects, thus reducing coupling and independently changing their interaction behavior. The specific structure diagram is as follows:在时代、民族、国家和政治的洪流中，孩子们的人生留下了最初却永远不会褪去的伤痕……《大君》讲述了一个女子与她身边两位王子的血色浪漫故事为求适应社会发展，神界举办第一届东西方交流大会，传统印象中以须发皆白老人形象出现的月老，和一直以光屁股孩童形象出现的丘比特，这次都以美青年的姿态华丽登场（作为颜控根本把持不住），也给人耳目一新之感。作为东方爱神的月老与西方爱神丘比特因缘际会，让人不禁期待究竟两人会擦出怎样的火花刚刚走出大学校门的本恩对前途十分茫然，偏偏在这时遇上了风流的鲁滨逊太太。虽然不再年轻，但鲁滨逊太太却一再勾引本恩，二人发生了关系。他们在约会过程中，本恩遇上了太太的女儿伊莱恩，被她的纯真青春深深吸引。本恩吐露了爱意，与伊莱恩开始了正常的恋爱关系，却遭到了鲁滨逊太太的剧烈反对。母亲的震怒使伊莱恩觉察到了一些内情。伊莱恩非常伤心，仓促同意了另一个人的求婚。本恩冲向伊莱恩结婚的教堂，他要力挽狂澜……特工编号C9的余小娇（高海宁饰）隶属的特工组织香港分部无故爆炸，小娇自此与总部失去联络。及后小娇下嫁忠厚老实的卖菜佬高大劲（马国明饰），每天忙着照顾大劲一班麻烦多多却温暖无比的家人，过了四年平凡幸福的师奶生活。没料到昔日的特工拍档B3（黎诺懿饰）突然现身，邀请小娇调查特工分部爆炸原因，以及找回分部被炸毁后失踪的VT神经毒剂。从此，小娇开始过着师奶及特工的双重生活。大劲无意中得悉小娇的特工身份，一时未能接受。冷战期间，大劲认清对小娇的感情，真心接纳小娇。未几，小娇发现B3竟是炸毁特工分部的叛徒，并利用小娇夺取VT神经毒剂谋利。小娇与毫无特工技能的大劲夫妻同心，携手对付B3，力保世界和平！Penglai Mountain, located in the northwest of Anxi County, was founded in the Northern Song Dynasty and has been serving as one of China's 100 immortals, Qingshui Patriarch for more than 950 years. It is a national 4A scenic spot and a well-known pilgrimage destination at home and abroad. Qingshui Rock is the only rock temple in the country with a "emperor" shaped structure. The pavilions and halls in the scenic spot are majestic and magnificent, the water and mountains are beautiful and magical, and cultural relics and historic sites are scattered all over the country. Among the existing cultural relics and historic sites, there are 29 in the Song Dynasty, 1 in the Yuan Dynasty, 8 in the Ming Dynasty, 5 in the Qing Dynasty and 23 in modern times. Together with the natural landscape created by heaven, it constitutes a fascinating "Penglai Wonderland". Qingshui Rock Inscriptions and Cliff Inscriptions involve Song, Yuan, Ming, Qing and even modern times. Among them, the "Rock Map" tablet in Song Dynasty is the most precious and is a provincial protected cultural relic.