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ID:9369725
大小:62.50 KB
页数:34页
时间:2018-04-29
《vb sql command(vb sql命令)》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、VB+SQLcommand(VB+SQL命令)VBSQLcommandsallAAbsforabsolutevaluesActiveControlgetsthefocusoftheobjectActiveFormgetsthefocusoftheformArrayspecifiesthearrayAppknowstheprograminformationAppActivateactivatestheapplicationinexecutionFindthecharacteroftheAsccodeAscBforcharacterASCIIAscWforcharacterUn
2、iCodeAtnasksTan-1BBeepsendsapresetwarningsoundCCallcallsubroutineCalendarselectcalendarChoosetakesavaluefromacolumnofvaluesCBoolvaluesconvertedtoBooleannumbersTheCBytevalueisconvertedintobitformatTheCCurvalueisconvertedintocurrencyformatCDatedataconversiontimeCDblnumerictodoubleprecisionfl
3、oatingpointnumbersCDecdataintoadecimalnumberChDirchangesthecurrentpathtoslowchargingpathsChDrivechangesthecurrentdiskcachediskBytheChrcodetoobtainacharacterChrBgetsacharacterbyASCIIChrWgetsacharacterbyUniCodeTheCIntdataisconvertedtoIntegerTheCLngdataisconvertedtoLongCommandreadprogramparam
4、etersConstdefinitionconstantCos,COS,CSngvaluesconvertedtosingleprecisionfloatingpointnumbersCurDirlearnsthatthecurrentpathisslowtofillthepathCVarvaluesareconvertedintovariablevariablesDDategetsthecurrentcomputertimeDate$getsthecurrentcomputertimestringDateAdddateaddedtodateDateDiffdatesubt
5、ractedvalueDatePartdatepartinformationDateSerialstringtodateDateValuedigitaltransferdateDayknowswhatdatevariableisinthedateDDBdepreciationcalculationDeleteSettingdeletesdatafromthesystemloginDirknowsthenameofthefileinthecurrentpathDoEventsidlefunctionEEndendprogramEnvirongetsthedataforthee
6、nvironmentvariableEOFdoesafilebufferindexgototheendofthefile?EraseinitializesthearrayagainErrerrorinformation,ErrorerrorcodeinformationExpgetsthenaturallogarithmFFixremovesdecimalsFileCopyTocopyfilesFileAttrfileopenmodeFileDateTimefilearchivingdateFileLenfilelengthFilterfilterarrayFormatda
7、taformatoutputFreeFileemptyfilenumberFVobtainsthevalueofanannuitywithregular,fixedpaymentsandfixedinterestratesGGetAllSettinggetsallsystemlogininformationGetAttrknowsthefilepropertiesGetSettinggetsinformationaboutsystemloginHHextransformsavalueintoastringrepre
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