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Structural patterns, as the name implies, discuss the structure of classes and objects and are mainly used to deal with the combination of classes or objects. It includes two types, one is class structure pattern, which refers to the combination of interfaces or implementations by inheritance mechanism. The second is the object structure mode, which refers to the realization of new functions by combining objects. It includes adapter mode, bridge mode, decorator mode, combination mode, appearance mode, element mode and agent mode.The tracking was very timely and the breakthrough was very fast. It was one of the first media in the whole network to obtain core interviews and won today's headline May High Quality Long Article Award.Factory method: Create a single object, which is used in Abstract Factory.In recent years, in order to lighten the burden on students, China has successively promulgated a series of relevant opinions and policies. For example, "Notice on Effectively Reducing the Extracurricular Burden of Primary and Secondary School Students and Carrying out Special Management Actions for off-campus Training Institutions" and "Opinions on Standardizing the Development of off-campus Training Institutions" are all aimed at rectification of off-campus training institutions. The "2018 College Enrollment Notice" announced that "the national college entrance examination bonus programs such as Othello will be completely cancelled"; The "Notice on Developing Kindergartens to Turn from" De-primary School "to Governance" specifically deals with the tendency of kindergartens to primary school and other issues.叶小棠身为京城叶府千金，貌若天仙，却“屡嫁不爽”，天煞孤星的身世传说，让京城乞丐都避之不及！叶小棠不甘，重金做了花车，全城巡游征婚！新晋探花慕谨言进京履职打马经过，无意间接到从天而降的“聘礼”和美娇娘叶小棠，叶小棠一朝撞进慕谨言怀中，便钟情不已，不能自拔，下定决心要收了慕谨言做自己的相公！当朝七皇子凌子然欲“截胡”抢了叶小棠，却被栽赃成了杀人犯，一桩桩悬案将三人捆绑得越来越紧，三人成团抽丝剥茧追查凶手，却不想悬案频发牵扯甚深，三人如何应对幕后黑手？又该如抉择终身？There is also a Wan Ku villain who wants him to go to the hotel to talk alone tonight? ?"The rest of the people are drinking and eating. After the meal, I stayed there for a while and went back to sleep. That night I slept in the shop of Jiang Xiaolong, the twelve people above. Jiang Xiaolong didn't let me go down and said, 'You sleep here, don't go down'.