[优秀毕业设计精品]基于局域网的聊天软件的设计与实现

A1A0A2A3A4A5A6A7A8A9A5A10A11A12A13A14A15A16毕业设计（论文）题目基于局域网的聊天工具的设计与实现二级学院专业班级学生姓名学号指导教师职称时间A1A0A2A3A4A5A6A7A8A9A5A10A11A12A13A14目录摘要5ABSTRACT61引言111开发背景112课题研究的意义22系统概述221国内外发展现状222系统实现技术3221MFC窗口控件重绘3222WINSOCK编程5223基于UDP的文件传输6224多线程编程7225扩展功能广域网聊天83系统分析931需求分析932可行性分析10321技术可行性10322操作可行性10323经济可行性10324进度可行性1133系统业务流程分析11331会员处理业务流程图1134系统数据流程分析12A1A0A2A3A4A5A6A7A8A9A5A10A11A12A13A14341顶层数据流程图12342第一层数据流程图13343第二层数据流程图1335系统数据模型17351系统ER图17352CDM图19353PDM图204系统详细设计2141系统功能设计21411主要功能模块21412主要功能描述2242重要模块的具体实现24421网络通信的实现24422登陆验证模块30423添加好友和加入群模块33424基于UDP的文件传输模块34425群聊天模块38426网络通信安全模块3943数据设计39431数据库设计39432数据结G75124144G11004G6155G11040G19766设计49441G11004G6155G11040G19766设计G2419G202949442登陆会员G11040G1976653443登陆验证G11040G1976654444G5062登陆G11040G1976655445G1474G6925G1022G1166G17176G7021G11040G1976656446G7609G6226好友G18群的G11040G197665744G26好友聊天G11040G1976657A1A0A2A3A4A5A6A7A8A9A5A10A11A12A13A1444G27群聊天G11040G197665844G28好友信G5699G11040G1976659441G19G12628G8917模G5347G11040G197666045G1207G11733设计615系统实施7851系统实G705778511G17731件开发G5049具的G17885G633378512开发G5191G250078513模G5347G17885G633378514程G5219设计G994G16855G168097952系统G8991G168097953系统G13512G6264816总结82致谢83参考文献84文献综述85A1A0A2A3A4A5A6A7A8A9A5A10A11A12A13A14摘要G3926G1182网络的G20146G17907发展G712网络G1002G11040G17837一G8022G5577G7101G5062G993G1889G19488G10995G712G8503G7171G3252G1038G2375G7114通G16771G17731件的G16818G10995G712网络G1002G11040G6177G15040G2199发展G452G2375G7114通G16771G17731件G13485G1166G1216G6564G1391G1114一G1022G1144流的G5191G2500G712G17837G12193G5191G2500G17892G9188G15905G10995发展G6116G1038一G12193G10317G8542的G12050G2318G712G1306G7171G14085G12175G17837G7691的G12050G2318G4613会G5445G2721G2052G1166G1216的G8503G5132G10995G8975G712G5049作和G4410G1076G452G19555G11540通信G712网络的G6984G2524G712G2375G7114通G16771G17731件G4570进一G8505发展G6116G1038G7044一G1207的通G16771G17731件G712G7389G11540G5052G3835的发展G2081景G452IMG72SSG68G74ING74G4628域网聊天G17731件G8503G7171G1183于G17837G7691的发展背景G1055G991开发G13792G6116G712G2530G13505G4570G6518G13046G7368G1038G1427G6475G712G7368多G1815G2282的聊天模G5347G712G19555G11540G2530G7411的G17892G8505G4448G2904G712G4570会G6564G20652G1166G1216G4410G1076G712G2162公G712G1144流的效率G712G6564G1391G7368G1038直观的聊天方G5347G712开创聊天G17731件的G7044G4628G19766G452关键词聊天G17731件G712G2375G7114通G16771A1A0A2A3A4A5A6A7A8A9A5A10A11A12A13A14ABSTRACTTODAY,WITHTHERAPIDDEVELOPMENTOFTHENETWORK,THENETWORKCONCEPTISNOLONGERNEWTOTHEWORLDBECAUSEOFTHEBIRTHOFINSTANTMESSAGINGSOFTWARE,PRECISELY,THEONLINEWORLDWASBOOMINGINSTANTMESSAGINGSOFTWARETOPROVIDEPEOPLEWITHACOMMUNICATIONPLATFORMTHATGRADUALLYDEVELOPEDINTOASPECIALKINDOFDERIVATIVEOFCOMMUNITY,BUTFROMSUCHACOMMUNITYWILLAFFECTPEOPLESNORMALLIFE,WORKANDSTUDYANDSOONASCOMMUNICATIONS,NETWORKINTEGRATION,INSTANTMESSAGINGSOFTWAREWILLBEFURTHERDEVELOPEDINTOANEWGENERATIONOFCOMMUNICATIONSSOFTWARE,HASGREATPROSPECTSFORDEVELOPMENTIMESSAGINGBETWEENLANCHATSOFTWAREISDEVELOPEDUNDERTHEBACKGROUNDTHATMADETHEDEVELOPMENTOFFOLLOWUPTOEXPLOREMORECONVENIENT,MOREDIVERSIFIEDCHATMODE,WITHTHEGRADUALIMPROVEMENTOFLATE,WILLINCREASEPEOPLETOSTUDY,OFFICE,COMMUNICATIONEFFICIENCYPROVIDEAMOREINTUITIVEWAYTOCHAT,ANDCHATSOFTWAREMUSTBEARRIVEATANEWSITUATIONKEYWORDSINSTANTMESSAGINGA17A18A19A20A21A22A23A24A25A26A22A27A28A29A30A31A17A18A19A20A21A22A23A24A25A26A22A27A28A29A30A3111引言聊天G5049具的出现G712促进G1114网络G12050会的形G6116G712G1166G1216的G10995G8975G1002G11040也G17892G9188的划分G1038真实G1002G11040和虚拟G1002G11040G452G17837里的虚拟G1002G11040G4613G7171指以网络G1038载体的G10995G8975G712G1166G1216通G5132并G993需要知道对方G7171谁G712也G993需要G1114解网络上的G17176源G7171谁G6564G1391的G712G1427可以遨游于G17837G1022虚拟的G1002G11040G712寻G6226属于自己的天空G452虚拟G1002G11040从某G12193程度上促进G1114G12050会各G1022方G19766的发展G712无论从经济上G712文G2282上G712教育上都G7389G11540举足轻重的地位G452G13792作G1038网络G12050会的G1144通G5049具G1055一聊天G5049具扮演G11540极G1038重要的角色G712它促进G1114G1166G1216思想G1144流G712加快G1114信G5699流通的G17907度G712使G17837G1022信G5699G2282的G1002G11040G20652G17907的运转G11540G452在G12050会方G19766G712聊天G5049具G6564G1391G1114一G1022G1144流的G5191G2500G712G4613好比一G1022虚拟的G12050会G712广G3835的使G11004者可以通过G17837G1022G12050会里畅所欲言G712以G10317G8542的方G5347营造出G1114一G12193G12050会属性G452在教育方G19766G712聊天G5049具带G13485我G1216G7044G5347的教G4410体验G712使在线文字G712语音G712视频教G4410G6116G1038G1114可能G712G7368重要的G7171G712G1166G1216可以分享彼此的思想和经验G712促进精神和教育文G2282的发展G452在G5049作方G19766G712G1166G1216利G11004聊天室和聊天群招开G5049作会议G712利G11004聊天G5049具的文件服务实现文件共享和文件传输G712G6564G20652G1114G5049作的效率G452综观聊天G5049具的发展史G712从单一的一对一聊天G712G2052多对多的互动G5347聊天G712聊天G5049具G8503在进行G1114一场G1166类思想G1144流观的革命G452目G2081的主流聊天G5049具G7368G7171G4570G5049作、娱乐、购物G6984G2524在G1114一起G712G17892G9188发展G6116G1114综G2524G2282的聊天G17731件G452G1166G1216对聊天G5049具的开发G994研究G4570G993会懈怠G712反G13792会G7368深入的G6518G13046其意义G452在我看来G712由于互联网的G20146G17907发展G712其必定会G6984G2524通信行业G712G13792聊天G5049具G4570会取G1207电话G712G6116G1038最流行普及的G1144流G5049具G45211开发背景1G28G26G19年G7101G7411G712一G12193G7368G7101的G2375G7114通G16771形G5347G7171柏拉图系统PLAG55G50SG92SG87G72G80G12G452在G17837G1055G2530在1G28G27G19年G712UG49G44G59G18LING88G91的G1144G16860G2375G7114通G16771G15999广G8879的使G11004于G5049程G5084G994G4410术G11040G7121G28G28G19年G2375G7114通G16771G7368G17340G17246G1114网G19481网G17347G1144流G4521G28G286年11G7388G712G44CG52G7171G20330G1022广G8879G15999G19762UG49G44G59G18LING88G91使G11004者G11004于网G17347的G2375G7114通G16771G17731体G452在G44CG52的G1183G13473G1055G2530G712G2528G7114在G16780多地方G7389一定数G18339的G2375G7114通G16771方G5347发展G712G1000各G5347的G2375G7114通G16771A17A18A19A20A21A22A23A24A25A26A22A27A28A29A30A312程G5347G7389G10432G12447的G2339定G712无G8873彼此互通G452G17837G5353G4560G11540使G11004者G2528G7114G6203行G1016G1022以上的G2375G7114通G16771G17731体G712G6122者G1194G1216可以使G11004G6915G6600多G2339定的G13468G12483G17731体G712G3926G42G68IG80、G55G85IG79G79IG68NG6122G45G68G69G69G72G85G452在G1025国G712G52G52G7171目G2081最主流的聊天G17731件G712具G7389G5234G3835的G11004G6155群体G712功能具G7389多G7691G2282G45212课题研究的意义研究G16825课题G712具G7389重G3835意义G712G17837对于G1182G2530研究网络G994通信G15713G2524具G7389指G4560作G11004G452G15441G9994目G2081的聊天G17731件G5062经具G3803G5390G3835多G12193的功能G712并G1000G6915G6357广域网的聊天G712G1306G7171G1194G1216G1185G9994G4396在各G12193各G7691的G19394题G712G3926安全G19394题G452G15441G9994G16825课题G1177G1177G2265G2559G1114G2375G7114通G16771G17731件的G12628单的功能G712G1306对于G2530G13505的研究G994开发G712G7389G17753G2173作G11004G4522系统概述IMG72G68SSG68G74ING74G2375G7114通G16771程G5219G7171基于G90ING71OG90SG991的聊天程G5219G712G18331G11004WINSOCK实现网络通G16771G712其设计G7562G7512G1038G19610G1025G5347的P2PG712G2375服务G3132G1038G1025G5527G712所G7389G11468G1863的G7692G5527数据全G18108G4396G6930在服务G3132上G712G4470G6155G12483G2494能G6365G10043G16280定的方G5347G16847取其数据G452G16825G17731件主要G18331G11004UDPG2339议G712G1306某G1135G10317G8542G5785G1929也G18331G11004G1114G55CPG2339议G452比G3926G712命G1208G9052G5699和聊天G9052G5699G3355基于UDPG2339议G712G13792G14731取G11004G6155G2027G15932G2029G18331G11004的G7171G55CPG2339议G712G1016G12193G2339议的G9163G11004G7368能G1457证G4470G6155G12483G994服务G3132通G16771G7114的效率和G1946G11842性G452IMG72SSG68G74ING74实现G1114在G4628域网G991进行G1022G1166聊天G15群聊天G15文件发G17877G12573的功能G712其G13464G6116G18108G1233G7171G4470G6155G12483和服务G3132G1016G3835G18108分G452其G1025服务G3132G18108分进行对会员G712群数据的G3698添G712G2036G19512G712G4396G1660G712G7609G16822G12573G712并G2375G7114G11468G5224G4470G6155G12483发G17877G13792来的命G1208G712进行G11468G1863的数据G16847G1901G712并G17832G3250G4470G6155G12483G11468G5224的命G1208G9052G5699G452G4470G6155G12483G18108分G2029G7171实现G11004G6155的操作G11040G19766G712实现G11004G6155G19400的聊天G6122者文件发G17877G712以及群聊天G12573功能G45221国内外发展现状G19555G11540G12239动互联网的发展G712互联网G2375G7114通信也在G2533G12239动G2282扩G5364G452目G2081G712G5506G17731、AG50L、G60G68G75OO、UCG54G55ARG12573重要G2375G7114通信G6564G1391G2842都G6564G1391通过G6175G7438G6521入互联网G2375G7114通信的业务G712G11004G6155可以通过G6175G7438G994其G1194G5062经安G16025G1114G11468G5224G4470G6155G12483G17731件的G6175G7438G6122电G14053G6922发G9052G5699G452A32A33A34A35A36A37A38A39A40A41A37A42A43A44A45A463G2375G7114聊天G17731件最G7101的创G3999G1166G7171G989G1022以色G2027G19750年G712G7171G1194G1216在1G28G286年做出来的G712取名叫G44CG52G4521G28G28G27年当G44CG52注册G11004G6155数达G205212G19G19万G7114G712G15999AG50L看G1025G712以2G27G26亿美G1815的天价买走G452目G2081G44CG52G73891亿多G11004G6155G712主要市场在美洲和欧洲G712G5062G6116G1038G1002G11040上最G3835的G2375G7114通信系统G452现在国内的G2375G7114通信G5049具G6365G10043使G11004对象分G1038G1016类一类G7171G1022G1166G44MG712G3926G52G52G712百度G75IG712网易泡泡G712盛G3835圈圈G712淘宝旺旺G12573G12573G452G52G52的G2081身G50G44CG52在1G28G28G28年2G7388第一次推出G712目G2081几乎G6521近垄断G1025国在线G2375G7114通G16771G17731件市场G452百度HI具G3803文字G9052G5699、音视频通话、文件传输G12573功能G712您可通过它G6226G2052志G2528道G2524的朋友G712并G19555G7114G994好友联络感G5785；另一类G7171企业G11004G44MG712G12628称EG44MG712G3926E话通G712UCG712EC企业G2375G7114通信G17731件G712UCG54G55AR、G2842务通G12573G452G2375G7114通信最初G7171由AG50L、G5506G17731、雅虎、腾G16771G12573G10432G12447于电信运营G2842的G2375G7114通信服务G2842G6564G1391的G452G1306G19555G11540其功能日益丰富、G5224G11004日益广G8879G712G10317别G7171G2375G7114通信G3698G5390G17731件的某G1135功能G3926G44P电话G12573G712G5062经在分流和替G1207传统的电信业务G712使得电信运营G2842G993得G993G18331取措G7057G5224对G17837G12193挑战G4522G19G196年6G7388G712G1025国G12239动G5062经推出G1114自己的G2375G7114通信G5049具FG72G87IONG712G1025国联通也G4570推出G2375G7114通G16771G5049具“超信”G712G1306由于进入市场较晚G712其G11004G6155G16280模和品牌知名度还比G993上G2419G7389的G2375G7114通信服务G6564G1391G2842G45222系统实现技术221MFC窗口控件重绘MFCMICG85OSOFG87FOG88NG71G68G87IONCG79G68SSG72SG12G712G7171一G1022G5506G17731公司G6564G1391的类库（CG79G68SSG79IG69G85G68G85IG72S）G712以C类的形G5347封G16025G1114WING71OG90S的APG44G712并G1000G2265G2559一G1022G5224G11004程G5219框G7562G712以减少G5224G11004程G5219开发G1166员的G5049作G18339G452其G1025G2265G2559的类G2265G2559G3835G18339WING71OG90S句柄封G16025类和很多WING71OG90S的内建控件和G13464件的封G16025类G452的G11842G712MFCG13485我G1216G6564G1391G1114很G1427G6475的编程方G5347G712我G1216几乎可以G993需要G1901任何G1207G11733G4613能G10995G6116一G1022带G7389菜单G712G5049具栏和视图的窗口G712MFC也G6564G1391G1114丰富的控件类G712在设计对话框的G7114候G712我G1216也G2494需要直G6521G4570控件拖进对话框里G712G13792G993G11004G1901任何G1207G11733G452IMG72SSG68G74ING74G4613G7171典型的G5224G11004程G5219G712G18331G11004G1114对话框设计框G7562G712G1306G7171G1038G1114设计一G1022友好美观的操作G11040G19766G712G1177G11004G5506G17731G6564G1391的控件类库达G993G2052预G7411的A32A33A34A35A36A37A38A39A40A41A37A42A43A44A45A464效果G712G3252此G712G4613必须重G7044绘制其对话框和控件的G11040G19766G452G13792G8503由于G5506G17731G4570G17837G1135控件封G16025得很好G712对于要G1474G6925它的属性G712派G10995一G1135美观的子控件难度G4613显得比较G3835G452一般来说G712实现对控件的重绘技术主要G7389子类G2282G712自绘和重绘技术G712由于框G7562太过于标G1946G2282G712G3252此实现G17837G1135技术也G7171G7389一定的难度G712G17837必须要对框G7562的结G7512G7389一定的G1114解G452IMG72SSG68G74ING74G18331G11004G1114的窗体背景重绘G712G79ISG87CG87G85G79自绘G712G6365钮贴图G12573方G5347实现G1114操作G11040G19766的美观G452主要G7692G5527技术G7171双缓冲绘图G452双缓冲绘图G4613G7171G4570待绘制的图片G1457G4396G2052内G4396里G712当需要绘制G2052屏幕上G7114G712G1889一次性投递G2052设G3803描述G15932里G712G17837G7691既避免G1114窗口重绘G7114的闪烁G712又G6564G20652G1114绘制的G17907度和效率G452BG50G50LCDCCG85G72G68G87IG72COG80PG68G87IG69G79G72DCCDCPDCG12函数G11004来创建一G1022兼容DCG15G2375在内G4396里创建一G1022DCG712以G2530的任何绘图所需的操作G712G3926G17885G11004何G12193画G12520G712画G2059G712字体G12573G712都G4570在内G4396G1025进行G712G13792G993G7171在真实设G3803上G991文里G452G19555G2530可以创建一G5364兼容位图G712需要绘制的图G1699G4570G712函数G2419型G3926G991BG50G50LCBIG87G80G68PCG85G72G68G87G72CIOG80PG68G87IG69G79G72BIG87G80G68PCDCPDCG15ING87NWIG71G87G75G15ING87NHG72IG74G75G87G12G452最G2530需要G4570兼容DC里的G1008G16211投G4568G2052真实的DC里G712BG50G50LBIG87BG79G87HDCG75G71CDG72SG87G15ING87NG59DG72SG87G15ING87NG60DG72SG87G15ING87NWIG71G87G75G15ING87NHG72IG74G75G87G15HDCG75G71CG54G85CG15ING87NG59G54G85CG15ING87NG60G54G85CG15DWG50RDG71G90ROPG12函数可以实现G16825功能G712具体G11004G8873可G2454G13783MG54DG49G452对话框的绘制比较容易G712MFCG1038对话框G6564G1391G1114G50NPG68ING87G9052G5699G11468G5224函数G712G1306G7171在G16825函数G991绘制并G993能从G7693G7424上重绘对话框G712G3252G1038G16825函数还会G16855G11004CDIG68G79OG74G50NPG68ING87函数G712在内G18108还会G1889G2447重绘背景G712G3252此要实现G4448全意义上的重绘背景G712G4613必须G2721G5224WMG66ERAG54EBG46G42G49DG9052G5699G712在G9052G5699G2721G5224函数里实现我G1216自己的绘制方G8873G712G9994G2530直G6521G17832G3250G55RUEG712G993G1889G16855G11004CDIG68G79OG74G50NEG85G68SG72BKG74NG71G12函数G452G1038G1114实现G1699G52G52G18039G7691的G11040G19766G712必须G4570对话框的属性设G13634G1038G49ONG72属性G712G2375G8821G7389标题栏G712G3252此G2494G7389自己G2447实现标题栏的功能G452CLISG87CG87G85G79重绘的方G8873G7389G1016G12193G15一G12193G7171G18331G11004G5506G17731G6564G1391的G50WG49ERDRAW属性G15通过重载DG85G68G90G44G87G72G80虚函数来进行重绘G452另外一G12193G4613G7171CG88SG87OG80G71G85G68G90属性G712通过定义自绘G9052G5699G2721G5224函数来进行重绘G452G1016G12193方G5347G7389G993G2528G1055处G712G2081者需要对G6984G1022LISG87CG87G85G79绘制G712必须G13783G15397G2052G8611一G1022IG87G72G80G20045的绘制G5785G1929G452G13792G2530者G11468对比较G12628G1427G712系统会在G3247G1022状G5589的G7114候通知重绘G712G17837G3247G1022状G5589分别G7171绘制G2081G712绘制G2530G712G6842G19512G2081G712G6842G19512G2530G712我G1216G4613可以G6365G10043自己的需要G2447绘制G712并G1000我G1216G2494G11004G13783G15397其G1025一G20045IG87G72G80的绘制方A32A33A34A35A36A37A38A39A40A41A37A42A43A44A45A465G8873G712G4613可以G5224G11004于所G7389G20045G452IMG72SSG68G74ING74G18331G11004G1114G2530者进行对G2027G15932控件的重绘G712实现G1114好友G2027G15932控件G712群G2027G15932控件类G452对于G57C6开发G10627G3671G712G5506G17731G6564G1391的通G11004G69G88G87G87ON控件的外观从现在看来的G11842G993太美观G712无G8873实现动G5589状G5589的效果G452G18039G1052G3252此G4613必须重G7044创建一G1022派G10995于CBG88G87G87ON的G6365钮类G712由于G16825类G4570G5224G11004于G7424G17731件的所G7389G6365钮控件G712G3252此做G6116可贴状G5589图的G6365钮控件最G1038G2524G17878G452状G5589分G1038G12239出G6365钮G712G5760G9026G6365钮G712G6365G991G6365钮G712G12117G11004G6365钮G3247G12193状G5589G712我G1216G2494需要G6564G1391G11468G5224的状G5589的BIG87G80G68PG4613可以G452具体重绘方G8873G4613G7171G18331G11004G2081G19766G6564G2052的G50WG49ERDRAW属性G712重载虚函数DG85G68G90G44G87G72G80G452G13792G6441G14731G21748标的G12239入G12239出G9052G5699可以使G11004G66G55G85G68CKMOG88SG72EG89G72NG87函数G712通过设G13634G55RACEMG50UG54EEG57EG49G55结G7512体的G1552来G6441G6429G16825G9052G5699G452其G12239出G9052G5699对G5224的G7171WMG66MG50UG54ELEAG57EG712G12239入G6365钮G9052G5699G7171WMG66MG50UG54EHG50G57ERG712分别定义其G9052G5699G11468G5224函数G712G17837G7691G4613能实现状G5589的G7368替G712G1889进行G11468G5224的绘制G452222WINSOCK编程WING71OG90SG991网络编程的G16280G14551G713WING71OG90SG54OCKG72G87SG7171WING71OG90SG991得G2052广G8879G5224G11004的、开G6930的、G6915G6357多G12193G2339议的网络编程G6521口G452它实现G1114标G1946SOCKG72G87编G6116的函数G712G6564G1391G1114一G3883属于G90ING71OG90SG991的G3883G6521子APG44G452其通信的基G11796G7171G3883G6521字（G54OCKG72G87）G712一G1022G3883G6521字G7171通G16771的一G12483G452在G17837一G12483上G1332可以G6226G2052G994其对G5224的一G1022名字G452一G1022G8503在G15999使G11004的G3883G6521字都G7389它的类型和G994其G11468G1863的进程G452G3883G6521字G4396在于通G16771域G1025G452通G16771域G7171G1038G1114处理一般的线程通过G3883G6521字通G16771G13792G5353进的一G12193G6289象G8022G5577G452G3883G6521字通G5132和G2528一G1022域G1025的G3883G6521字G1144G6454数据（数据G1144G6454也可能G12371G17246域的G11040G19492G712G1306G17837G7114一定要G6203行某G12193解G18334程G5219）G452WING71OG90SG54OCKG72G87SG16280G14551G6915G6357单一的通G16771域G712G2375G44NG87G72G85NG72G87域G452各G12193进程使G11004G17837G1022域互G11468G1055G19400G11004G44NG87G72G85NG72G87G2339议G7075来进行通G16771（WING71OG90SG54OCKG72G87S11以上的G10268G7424G6915G6357其G1194的域G712G1375G3926WING71OG90SG54OCKG72G87S2）G452G3883G6521字可以G7693据通G16771性G17148分类；G17837G12193性G17148对于G11004G6155G7171可G16277的G452G5224G11004程G5219一般G1177在G2528一类的G3883G6521字G19400通G16771G452G993过G2494要G5225层的通G16771G2339议G1813G16780G712G993G2528类型的G3883G6521字G19400也G10043G7691可以通G16771G452G11004G6155目G2081可以使G11004G1016G12193G3883G6521字G712G2375流G3883G6521字和数据G6265G3883G6521字G452流G3883G6521字G6564G1391G1114双G2533的G712G7389G5219的G712无重G3809并G1000无G16772G5417G17805G11040的数据流服务G452数据G6265G3883G6521字G6915G6357双G2533的数据流G712A32A33A34A35A36A37A38A39A40A41A37A42A43A44A45A466G1306并G993G1457证G7171可G19764G712G7389G5219G712无重G3809的G452也G4613G7171说G712一G1022从数据G6265G3883G6521字G6521G6922信G5699的进程G7389可能发现信G5699重G3809G1114G712G6122者和发出G7114的G20046G5219G993G2528G452数据G6265G3883G6521字的一G1022重要G10317G9869G7171它G1457G11053G1114G16772G5417G17805G11040G452对于G17837一G10317G9869G712数据G6265G3883G6521字G18331G11004G1114G994现在G16780多G2265G1144G6454网络（G1375G3926以太网）G19762G5132类G1296的模型G452其G1025G55CPG2339议G4613G7171基于流G3883G6521字G712G13792UDPG2339议基于数据G6265G3883G6521字G712IMG72SSG68ING74聊天程G5219主要基于UDPG2339议G712G13792在G10317G8542操作G991又G18331G11004G55CPG2339议G1457证其数据的可G19764性G452在设计G19466G8585G712需分析G16825G17731件G17878G11004于G1172G1052G7691的地G2339议进行通G16771G712还必须分析G16825系统G5224G16825G17878G2524于何G12193G3883G6521字G44G50操作G452目G2081G712G90ING71OG90SG6564G1391G1114多G12193G3883G6521字G44G50模型G712G3926G19471G3634G5347G44G50G712G19762G19471G3634G5347G44G50G712G1119件G44G50G712重G2484G44G50（可G6564G18278G44G50）G712G4448G6116G12483口G12573G712G8611一G12193G44G50模型都具G7389自身的G1260G2195和G13582G19531G712其G1025G4448G6116G12483口可以达G2052目G2081G90ING71OG90SG5191G2500G991最G20652G44G50性能G452由于G7171基于UDPG2339议G712并G1000G13783G15397G2052在G2528一G7114G19400处理得命G1208并G993会很G3835的G5785G1929G712服务G3132和G4470G6155G12483G3355G18331G11004基于G19762G19471G5589的G44G50模型实现命G1208的传输G452G90ING71OG90SG6564G1391G1114一G1022CAG92SNCG54OCKG72G5334G8505G3883G6521字类G712它G7171基于G19762G19471G3634模型G712对G54OCKG72G87函数进行G1114G14403好的封G16025G712CASG92NCG54OCKG72G87CG85G72G68G87G72G12G7389一G1022G2454数指G7138G1114G1332想要处理G2750G1135G54OCKG72G87G1119件G712G1332G1863G5527的G1119件G15999指定以G2530G712G17837G1022G54OCKG72G87G21676G16760G4613G15999G11004作G1114G5334G8505方G5347G452CASG92NCG54OCKG72G87的CG85G72G68G87G72G12函数G712G19512G1114创建G1114一G1022G54G50CG46EG55以外G712还创建G1114G1022CG54OCKG72G87WNG71窗口对象G712并使G11004WG54AASG92NCG54G72G79G72CG87G12G4570G17837G1022G54G50CG46EG55G994G16825窗口对象G1863联G712以G16765G16825窗口对象处理来自G54OCKG72G87的G1119件G9052G5699G12G712G9994G13792CG54OCKG72G87WNG71G6922G2052G54OCKG72G87G1119件G1055G2530G712G2494G7171G12628单地G3250G16855CASG92NCG54OCKG72G87G50NRG72CG72IG89G72G12G12573虚函数G452所以CASG92NCG54OCKG72G87的派G10995类G712G2494需要在G17837G1135虚函数里添加发G17877和G6521G6922的G1207G11733G452G3252此G1183于G5506G17731G6564G1391的G5390G3835类方G8873G712G4613很容易实现数据的通信G452223基于UDP的文件传输要实现文件传输的方G5347G7389很多G12193G712G5132G11004的方G5347G4613G7171G1699MG54G49G18039G7691基于G55CP的文件传输G712G17837G7691的传输很G12295定G712可G19764G712容易实现G712G1306传输的G17907度和效率会比较G5942G452G1038G1114G6564G20652传输G17907度G712我G1216可以G18331G11004UDPG2339议来传输文件G712由于UDPG2339议传输的数据G993具G7389可G19764性G712在网络G10627G3671G5058的地方很容易出现G1014G2265G712G1093G5219G12573现象G712直G6521G18331G11004A32A33A34A35A36A37A38A39A40A41A37A42A43A44A45A467UDP来传输文件G7171G993行的G7