vb各章节总结

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1、VB各章节总结Chapter1VBprogramdevelopmentenvironment1)definitionofVB:VBisavisual,object-oriented,andeventdrivenstructuredhigh-levelprogramminglanguagethatcanbeusedtodevelopvariousapplicationsinWindowsenvironments・Two)characteristicsofVB:VisualprogrammingObject-o

2、rientedprogrammingEventdrivenprogrammingmechanismStructuredprogramminglanguageAccessdatabaseThree)titlebar(threestages)Designmode>runmode>interruptmodeFour)the6typesoffilesandextensionsintheProjectExplorerwindow1)formfile(・Frm)2)modulefile(・Bas)3)classmodu

3、lefile(・Cis)4)engineeringdocument(・Vbp)5)engineeringgroupfile(・Vbg)6)resourcefile(・Res)ThesecondchapteristheobjectanditsoperationObject)anentitythathasspecialattributes(data)andwaysofdoingthings・Two)attributes:thecharacteristicsofanobject,differentobjectsh

4、avedifferentattributes・Three)event:VBispre-set,andcanberecognizedbytheobjectaction.Four)methods:arespecialobjectsandfunctions・Propertysettingmethod:Propertywindowsettings,typedirectly;Selectinput;UsedialogboxSetthe・〈attributename>=

5、ue>programstatementsEventproceduregeneralformat:PrivateSub_([])EndSubCases:Private,Sub,Commandl_Click()Form1.BackColor二vbRedEndSubMethodcallformat:Theobjectname>・]〈method[[]Thethirdch

6、apter,simpleprogramdesign1)statementsinVBStatementsin1.VBareinstructionstoperformspecificactions,eachstatementwithareturnkey;2.,intheinputstatement,thecommandword,function,andsoon,youcannotdistinguishcase・Forexample,whenyoutypePrint,enterPrint,print,orPRIN

7、T,andpressentertochangetoPrint・3.ingeneral,whenyouenteraprogram,youneedoneline,onesentence,oneline.Whenseveralstatementsareplacedinarow,thestatementsareseparatedbycolons・3.thelengthofastatementlinemustnotexceed1023characters・Whenastatementcannotbewrittenin

8、oneline,thecontinuationcharacter(underscore)isusedtoconnect・Note:thereshouldbeatleastonespacebetweenthecontinuationcharacterandthecharactersinfrontofit.Two)threestatements1,assignmentstatement2,coimnentstatem