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In addition, they apply different stages of design, and the appearance mode is used in the early stage of design, because the system needs to rely on appearance in the early stage, while the adapter is applied after the design is completed. When it is found that the designed classes cannot work together, the adapter mode can be adopted. However, in many cases, the use of adapter mode should be considered at the early stage of design, such as involving a large number of third-party application interfaces. Proxy mode is that after the mode is completed, it wants to be provided to other clients in the form of services for calling. At this time, other clients can use proxy mode to access the module.　　万蕾冒死传出交易信息，叶其辉迅速部署收网行动。二人里应外合，历经九死一生，成功抓获大毒枭巴青，瓦解林氏双胞胎的“幽灵”组织。叶其辉也终于冲破内心的情感藩篱，在病床前等候万蕾的苏醒。就在此时，另外一阵爽朗的笑声传来，以为须发开始发白的老者走了过来。2. Mathematical period: For a function f (x), if there is a non-zero constant T, so that when x takes every value in the domain, there is f (x + T) = f (x), then the function f (x) is called a periodic function. The nonzero constant T is called the period of this function.口口声声，开口闭嘴都是徐家，徐家都多了不起啊？仗着家里有几千钱，有点小小的实力就了不起吗？若真是有本事，出来闯一闯啊。Builder mode refers to separating the internal representation of a product from the construction process of the product, thus enabling a construction process to generate product objects with specific different internal representations. It emphasizes the construction process of the product. The main points of its implementation include:1. SYN Tool under Windows System