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591论文网的文字聊天传输模块的设计摘要当前中国的互联网技术已经进入了一个飞速发展的时期，即时通讯工具作为当今网络应用的主流，越来越受到了人们的青睐，使人们的网上生活更加丰富多彩。当今使用最为广泛的即时通信工具——聊天软件，可以方便人们随时随地进行在线交流，比如腾讯公司的QQ聊天软件。本毕业设计就是模拟QQ聊天软件，开发一个包括文字聊天、文件传输、语音及视频交流等功能的聊天软件。本设计的开发采用C/S结构，在基于.NET开发环境下，使用C#编程语言进行开发。本文首先论述国内外聊天工具的发展情况和现今的发展方向，并对开发环境和开发语言进行了简单介绍；对本设计所要开发的多功能聊天软件作了较为全面的需求分析，并给出了多功能聊天软件的设计方案，主要功能包括文字聊天、文件传输、语音聊天及视频聊天等；本毕业设计主要实现的是多功能聊天软件的部分功能，即文字聊天、文件传输等功能，主要完成的任务包括服务器模块的设计、数据库的设计、添加好友、文字聊天和文件传输等功能。与另一位同学开发实现的语音聊天与视频聊天模块集成在一起，构成一个实用的、功能完善的聊天软件，达到预期目标；通过运行、测试与分析，该多功能聊天软件运行稳定、可靠，具有一定的实用价值。关键词：聊天软件；文字聊天；文件传输；C/S结构；QQ聊天软件591论文网——Writing/FileTransferringModuleAbstractNowadays，China'sInternettechnologyhasalreadyenteredarapiddevelopmenttimes,theinstantmessengertakesnowthemainstreamofnetworkapplication,whichcausespeople'sonlinelifetobemorerichlycolorful,andhasalsoreceivedpeople'sfavorssimultaneously.Atpresent,themostwidespreadinstantmessenger—chatsoftware,mayfacilitatethepeopletocarryontheonlineinformationexchangeatanytimeandanywhere,forinstancetheQQchatsoftwareofTencentcompany.ThisgraduationprojectsimulatesQQchatsoftware,anddevelopsachatsoftwarethatincludesthewriting,filetransfer,audiochat,videochatandsoon.ThisdesigndevelopmentusestheC/Sstructure,usestheC#programminglanguagetocarryondevelopingthissoftwarebasedon.NETenvironment.Thispaperfirstelaboratesthedevelopmentsituationofdomesticandforeignchatstoolandthedevelopmentdirectionnowadays,andhascarriedonthesimpleintroductiontothedevelopmentenvironmentandthedevelopmentlanguage.Thedemandofmulti-functionchatsoftwareisanalyzedindetail,anditsplanisprovided.It’smainfunctionsincludethewriting,filetransfer,audioandvideochatandetc.Thisgraduationprojectmainlyrealizesthepartialfunctionsofmulti-functionchatsoftware,namelythewritingchat,thefiletransferandsoon,whichmainlyrealizesthedesignofservermodule,thedesignofdatabase,addingofgoodfriend,writingchat,filetransferandsoon.Finally,thisdesignintegratesthefunctionsthatanotherschoolmatedesignsthewritingandfiletransfer,whichformschatsoftwareofpracticalandfullfunctions.Thissoftwareachievestheanticipatedtarget.Byrunning,testingandanalyzing,itshowsthatthismulti-functionchatsoftwareisstable,reliable,andhassomepracticalvalues.Keywords:ChatSoftware;WritingChat;FileTransfer;C/SStructure;QQChatSoftware591论文网目录论文总页数：24页1引言...............................................................................................................................................11.1课题背景................................................................................................................................11.2国内的发展现状....................................................................................................................11.3本课题研究的意义................................................................................................................21.4本文的主要工作....................................................................................................................22系统需求分析...............................................................................................................................23开发环境及开发工具...................................................................................................................33.1开发环境的概述....................................................................................................................33.2C#语言的概述........................................................................................................................53.3SQL数据库的介绍................................................................................................................54多功能聊天软件的设计方案.......................................................................................................64.1聊天系统流程的分析与设计................................................................................................64.2数据库模块的分析与设计....................................................................................................74.3添加好友模块的分析与设计................................................................................................84.4服务器模块的分析与设计....................................................................................................95文字聊天、文件传输模块的设计与分析...................................................................................95.1文字聊天模块的分析............................................................................................................95.2文字聊天模块功能具体实现................................................................................................95.3文件传输模块的分析..........................................................................................................125.4文件传输模块功能具体实现..............................................................................................136添加好友、服务器以及其它特殊功能模块实现分析.............................................................156.1添加好友模块功能具体实现..............................................................................................156.2服务器模块功能具体实现...