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1、外文文獻原文：ReadytoupgradeVisualBasic6.0applicationstoVisualBasic.NETOutlineThisdocumentistouseMicrosoft?VisualBasic?developerstoprovidetheapplicationtoupgradetoMicrosoftVisualBasic.NETrecommendations.VisualBasic.NETcanopentheVisualBasic6.0projectstoVisualBasic.NETupgradeitstech
2、nology.However,inmostcases,theprojecttoupgradetoVisualBasic.NET,youneedtomakesomechangestotheproject.ThepurposeofthisdocumentisonthedesignandimplementationofthecurrentVisualBasicprojecttoproviderecommendationstoupgradetoVisualBasic.NETonlyafteraminimumofchanges.Whereappropr
3、iate,wewillusethenewlanguagestructure;However,thisdocumentisnotalanguagereferenceforVisualBasic.NET.WhatisVisualBasic.NET?VisualBasic.NETisthenextversionofVisualBasic.Microsoftre-designedtheproduct,ratherthansimplyasVisualBasic6.0addsomenewfeatures.Thenewversioneasierthanpr
4、eviousversionsofthepreparationofdistributedapplications,suchasWebandenterprisen-tiersystem.VisualBasic.NETwithtwonewformspackages(WindowsFormsandWebForms);usedtoaccessthedisconnectedADOdatasourceforthenewversion;thelatestmodelofthelanguage,removethetraditionalkeyword,improv
5、edtypesecurityandadvanceddevelopersneedtoopenalow-levelstructure.ThesenewfeaturesfortheVisualBasicdeveloperopenedanewdoor:UsetheWebFormsandADO.NET,torapidlydevelopscalableWebsites;throughtheinheritance,thelanguagecanbearealobject-orientedprogrammingsupport;Windowswindowbody
6、itselftosupportaccessandvisualinheritance;nowdeployyourapplicationastheexecutablefilesandcomponentsfromonedirectorytoanotherdirectorysosimple.VisualBasic.NETisnowavailableinotherlanguagesfullyintegratedwithMicrosoftVisualStudio.NET.Youcannotonlyusedifferentprogramminglangua
7、getodevelopapplicationcomponents,andyourclasscannowcross-languageinheritancetoinheritclasseswrittenindifferentlanguages.Usingtheunifieddebuggercannowdebugmultiplelanguageapplications,regardlessofwhethertheyarerunlocallyoronaremotecomputer.Finally,nomatterwhatlanguageyouuse,
8、Microsoft.NETFrameworkistheMicrosoftWindows?andInternetprovidesarichAPI.Whynot100p
