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TCB (TCP? Transport Control Block is a transport protocol data structure that contains all the information of the connection (in fact, in many operating systems, it is a queue used to process inbound connection requests. The queue holds TCP connection items that are in a half-open state and items that have established a full connection but have not yet been extracted by the application through an accept () call). The amount of memory occupied by a single TCB depends on the implementation of TCP options and other functions used in the connection. Usually a TCB has at least 280 bytes, which in some operating systems has exceeded 1300 bytes. The SYN-RECEIVED state of TCP is used to indicate that the connection is only half open, and the legality of the request is still questioned. An important aspect worth noting here is that the size of TCB allocation space depends on the SYN packets received-before the connection is fully established or the return reachability of the connection initiator is verified.大苞谷被她一语道中，无话可说。Est (2, true, 500); This method does not match from the first node order500 in the chain, returns the success string, and then this.success & & this.successor.passRequest.apply (this.success, arguments); Execute this code; As we said above, the attribute this.Successor refers to two methods, order200 and orderNormal, so the method order200 is called, so the value is returned, and so on. Then if we want to recharge 300 yuan's red envelopes in the future, we can write the function Order300, then list the chain chain and package it, and specify the order in the responsibility chain. The business logic inside does not need to be processed.真玉米当年逃脱后，白大人若想在短短两日工夫内，找一个长相跟他十分相像，又恰好失去记忆之人，绝非易事。　　华莉丝在街头邂逅了收留自己的玛丽莲，跟着又在打工的餐厅里遇到伯乐，最终被发掘成为世界名模，并投身于妇女解放事业。一位年轻的护士在一家老城医院开始轮班。在一次奇怪的幻影后，一位年纪最大的护士告诉她，一位名叫摩尔的病人几年前进了医院。他的尸体在一场火灾后被完全烧焦了。医生给摩尔先生紧急做了手术。但没有人愿意帮助他。疼痛和药物让他发疯——一天晚上，一个护士去了他的房间，但他的床空着。再也没有他的消息了。铃声打断了故事。电话来自摩尔先生的房间。