计算两个时间差的函数

计算两个时间差的函数    '******************************
    '||Function TimeDiff(sBegin, sEnd)
    '||本函数计算两个时间的差,可以不用更改直接使用
    '||作者:machinecat 2001/10/26
    '******************************
    '******************************
    '注:首先需要判断用户输入的sBegin与sEnd之间的大小
    '可以通过DataDiff函数获得两者之间的时间差,不需要进行复杂的时间换算
    '******************************
    Function TimeDiff(sBegin, sEnd)
    Dim iHourB, iMinuteB, iSecondB, iMiniSecondB
    Dim iHourE, iMinuteE, iSecondE, iMiniSecondE
    Dim dTimeB, dTimeE, dTimeDiff
    Dim iHour, iMinute, iSecond, iMiniSecond
    iHourB = clng(Left(sBegin, 2))
    iMinuteB = clng(Mid(sBegin, 4, 2))
    iSecondB = clng(Mid(sBegin, 7, 2))
    iMiniSecondB = clng(Mid(sBegin, 10, 4))
    iHourE = clng(Left(sEnd, 2))
    iMinuteE = clng(Mid(sEnd, 4, 2))
    iSecondE = clng(Mid(sEnd, 7, 2))
    iMiniSecondE = clng(Mid(sEnd, 10, 4))
    dTimeB = iHourB * 3600 + iMinuteB * 60 + iSecondB + iMiniSecondB / 1000
    dTimeE = iHourE * 3600 + iMinuteE * 60 + iSecondE + iMiniSecondE / 1000
    dTimeDiff = dTimeE - dTimeB
    iHour = Int(dTimeDiff / 3600)
    dTimeDiff = dTimeDiff - iHour * 3600
    iMinute = Int(dTimeDiff / 60)
    dTimeDiff = dTimeDiff - iMinute * 60
    iSecond = Int(dTimeDiff)
    dTimeDiff = dTimeDiff - Int(dTimeDiff)
    iMiniSecond = dTimeDiff
    TimeDiff = iHour & "小时" & iMinute & "分钟" & iSecond & FormatNumber(iMiniSecond, 3) & "秒"
    End Function

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