通过datediff()函数综合运用,加入跨天计算时差,得出精确到分钟的时间差

函数模块代码:
''--------------------------------------------------------------
''计算时差函数
''
''例：TimeDiff([开始日期]，[结束日期]，[开始时间]，[结束时间])
''输出:字符串  格式 （hh:nn）
''
''编程:江羽
''--------------------------------------------------------------
Public Function TimeDiff(StarD As Date, EndD As Date, StarT As Date, EndT As Date) As String
Dim myDateDiff As Date
Dim myMinuteDiff As Date

myDateDiff = Datediff("d", StarD, EndD)
myMinuteDiff = Datediff("n", StarT, EndT)

''判断日期是否超过一天
If myDateDiff > 0 Then
    myMinuteDiff = Datediff("n", StarT, EndT) + myDateDiff * 24 * 60
Else
    myMinuteDiff = Datediff("n", StarT, EndT)
End If

TimeDiff = Format(Int(myMinuteDiff / 60), "00") & ":" & Format(myMinuteDiff Mod 60, "00")

End Function

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