Vb常用内部函数

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1、Vb常用内部函数Onlyafteralongperiodofhardwork,andlongimmersedinthetask,canbeaccomplished・一HegelVbUSESinternalfunctionsClickthefunctiongrouptoview:ThemathematicalfunctionofthetypeconversionfunctionisthefunctionofthefunctionoftimeandtimeThestringfunctionfileoperatestheforminputandoutputfunctio

2、nClickthefollowingheadlinetoreturnhere:*typeconversionfunctionInt(x):themaximumintegerthatisnotgreaterthanthexvalueoftheindependentvariableFix(x):removethedecimalportionofafloating-pointnumberandkeepitsintegerportionHex$(x):convertadecimalnumbertohexadecimalnumberOct$(x):convertadecim

3、alnumbertoanoctalnumberAsc(x$):returnstheASCIIcharacterofthefirstcharacterinthestringx$CI1R$(x):convertthevalueofxtothecorrespondingASCIIcharacterStr$(x):convertthevalueofxtoastringCint(x):roundingthedecimalpartofxtoanintegerCcur(x):convertthevalueofxintoacurrencytypevalue,withamaximu

4、mof4digitsinthedecimalportionandautomaticallyroundingupthedecimalCDbl(x):convertthexvaluetodoubleprecisionCLng(x):convertthedecimalportionofxtoalongintegerCSng(x):convertthexvaluetoasingleprecisionnumberCvar(x):convertthexvaluetothevarianttypevalueVarPtr(var):thepointertothevariableva

5、r*mathematicalfunctionSineofx:returnsthesineoftheindependentvariablexCosineofx:cosineoftheindependentvariablexTangent(x):returnthetangentoftheindependentvariablexAtn(x):returnthevalueoftheinversevariablexAbs(x):returnstheabsolutevalueoftheindependentvariablex6,Sgn(x):returnthesymbolof

6、theindependentvariablex,whichiswhenxisnegative,returnT;Whenxis0,return0;Whenxispositive,return1Sqr(x):thesquarerootoftheindependentvariablexmustbegreaterthanorequalto0Exp(x):returnsthevalueofetothex,whichisetothex*dateandtimefunctions1,Day(Now):returnthecurrentdateWeekDay(Now):returni

7、ngtothepresentweekMonth(Now):returntothepresentMonthYear(Now):returnthecurrentYearHour(Now):returnhours(0~23)Minute(Now):return(0'59)Second(Now):returnseconds(0~59)*therandomnumberfunctionRnd[(x)]:generatesasingleprecisionrandomnumberbetween0and1Randmize[(x)]:functionallythesame,butbe

8、tter*