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The main difference between the proxy mode and the appearance mode is that the proxy object cannot directly access the object, but can only be accessed by the proxy object, while the appearance object provides a simplified access call interface for each subsystem, while the adapter mode does not need to fabricate a proxy, so as to reuse the original interface. The appearance mode defines a new interface, while the adapter reuses an existing interface.白凡回答十分干脆：不知道？张杨冷笑道：白大人，人是你送来的，你说不知道？白凡走到大堂中央。然而，在镁光灯下风光无限、叱咤行业十年的莫向晚却正困于不上即下的职场牢笼。她亲手培育的艺人、亲手提拔她的老板、协作多年的同事、在假意真情之间奉来迎往的合作方、甚至她倾心相爱的男人和真心相待的朋友，都是她在欲望都市里最熟悉的陌生人。再以他对赵锋的了解，知道肯定有误会，见这内侍糊涂，忙对那龙禁卫喝道：你来说，朱雀将军带人去胡府干什么了？胡敦以为他幸灾乐祸，看胡家笑话，遂气得哭骂道：干什么？你听我胡家满门被灭高兴了？老夫与你势不两立。AbstractCalculator cal = new Plus ();The difference between them is that each policy class in the policy mode is equal and parallel, and there is no connection between them. Therefore, customers must be familiar with the functions of these policy classes so that customers can actively switch algorithms at any time. However, in the state mode, the behavior corresponding to the state and the state has long been encapsulated, and the switching between states has long been stipulated to be completed. The "change of behavior" occurs within the state mode. For customers, they do not need to know these details. This is what state patterns do对了。