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TCP is connection-oriented, and a connection must be established between either side before sending data to the other. In TCP/IP protocol, TCP protocol provides reliable connection service, and the connection is initialized by three-way handshake. The purpose of the three-way handshake is to synchronize the serial numbers and acknowledgement numbers of both parties and exchange TCP window size information. The process of shaking hands can be represented by the following figureThe reason why the traditional portal has high-quality content and fast response is that it has invested a lot of editing and has morning and evening shifts. This can solve the problems of timeliness and professionalism, but this model is very heavy and depends too much on people and numbers.The application is double-opened, which supports the trumpet creation and login of all applications on the mobile phone, allowing the main number and trumpet of the application to log in at the same time.羽濑川拓人，一个平凡无奇且极度中庸的高中生，不管做什么事都不突出，表现也是一路平～～到底，在学校甚至有“2年B班平均分数计算机”之称。然而如此平凡的他，却是在隐藏于现代社会的“魔法学园”上课的魔法师候补生之一。为了成为一位合格的魔法师，拓人必须参加各式各样的艰难竞技测验，但他却在“召唤实技Ⅱ”的补考中叫出了魔力值十万以上、神格值五千、属性不明且有着野兽耳朵的美少女“塔娜罗特”。这位謎样少女的出现，让魔法学园以及神界、魔界卷入了一场巨大的骚动！为了防止“塔娜罗特”再度暴走，学园因此强迫拓人、铃穗与她展开三人的同居新生活。孰知～～～塔娜罗特和铃穗为了争夺拓人，竟在学园展开一场大混战，两人把学园烧得乌烟瘴气，害得拓人因此被罚在家闭门思过。然而这时，一双跟他们三人毫无关系的阴谋魔手，却悄悄逼近他们身后……郑氏惊诧间，只觉脑中灵光一闪，快得抓不住，因而蹙眉沉思。各国诸侯膝行而前，莫敢仰视，缺的不正是自己这个楚王吗？很快，自己就会彻底失去利用价值，碍着项羽的手脚，自己还能存活多久呢？熊心冷笑一声，瘫软在榻上，握着捷报文书，泪水滚滚滑落……君王见捷报不喜反悲，如此怪异的情形，熊心算是第一个了……齐国临淄离彭城并不远，很快也收到了消息。