TCPIP入门介绍-毕业设计(论文)外文翻译

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1、IntroductiontoTCP/IP–IntroductionAuthorCatalystDevelopmentCatalystDevelopmentisarecognizedleaderinInternetcomponentsoftwarewhoseaward-winningproductsareusedbythousandsofcorporate,governmentandindependentdevelopersaroundtheworld.IntroductionWiththeacceptanceofTCP/IPasa

2、standardplatform-independentnetworkprotocol,andtheexplosivegrowthoftheInternet,theWindowsSocketsAPI(applicationprograminterface)hasemergedasthestandardfornetworkprogrammingintheWindowsenvironment.ThisdocumentwillintroducethebasicconceptsbehindWindowsSocketsprogramming

3、andgetyoustartedwithyourfirstapplicationcreatedwithSocketWrench.SocketWrenchispartofapackagedevelopedbyCatalystcalledtheSocketToolsVisualEdition.SocketToolsincludescomponentsandlibrariesformanyofthepopularInternetapplicationprotocols,suchasFTP,POP3,SMTPandHTTP.Formore

4、informationaboutthecompleteSocketToolspackage,visittheCatalystwebsiteatwww.catalyst.com.ItisassumedthatthereaderisfamiliarwithVisualBasicandhasinstalledtheSocketWrenchcontrol.Ifyou'realreadyfamiliarwithsocketsprogramming,feelfreetoskipthissection.Therearetwogeneralapp

5、roachesthatyoucantakewhencreatingaprogramthatusesWindowsSockets.OneistocodedirectlyagainsttheAPI.Theotheristouseacomponentwhichprovidesahigher-levelinterfacetothelibrarybysettingpropertiesandrespondingtoevents.Thiscanprovideamore"natural"programminginterface,anditallo

6、wsyoutoavoidmuchoftheerror-pronedrudgerycommonlyassociatedwithsocketsprogramming.Byincludingthecontrolinaproject,settingsomepropertiesandrespondingtoevents,youcanquicklyandeasilywriteanInternet-enabledapplication.SocketWrenchprovidesacomprehensiveinterfacetotheWindows

7、Socketslibraryandwillbeusedtobuildasimpleclient-serverapplicationinthenextsectionofthisdocument.Beforewegetstartedwiththecontrol,however,we'llcoverthebasicterminologyandconceptsbehindsocketsprogrammingingeneral.TransmissionControlProtocol(TCP)Whentwocomputerswishtoexc

8、hangeinformationoveranetwork,thereareseveralcomponentsthatmustbeinplacebeforethedatacanactuallybesentandreceived.Ofcourse,th