Question

尝试创建一个函数来比较VBA中的两个日期（需要日期和订单日期），如果要求的日期早于订单日期，那么这应该会产生错误。

Answer 1

继我的第一个评论之后，这里有四个日期比较的例子

'~~> Direct Date Comparision
Sub Sample1()
    Dim dt1 As Date, dt2 As Date

    dt1 = #12/12/2014#
    dt2 = #12/12/2013#

    Debug.Print IsGreater(dt1, dt2)
End Sub

'~~> Converting string to date and directly comparing
Sub Sample2()
    Dim dt1 As String, dt2 As String

    dt1 = "12/12/2014"
    dt2 = "12/12/2013"

    Debug.Print IsGreater(CDate(dt1), CDate(dt2))
End Sub

'~~> Using DateDiff with direct date comparision
Sub Sample3()
    Dim dt1 As Date, dt2 As Date

    dt1 = #12/12/2014#
    dt2 = #12/12/2013#

    If DateDiff("d", dt2, dt1) > 0 Then
        MsgBox "Greater"
    Else
        MsgBox "Smaller or Equal"
    End If
End Sub

'~~> Using DateDiff with converting string to date and directly comparing
Sub Sample4()
    Dim dt1 As Date, dt2 As Date

    dt1 = "12/12/2014"
    dt2 = "12/12/2013"

    If DateDiff("d", CDate(dt2), CDate(dt1)) > 0 Then
        MsgBox "Greater"
    Else
        MsgBox "Smaller or Equal"
    End If
End Sub

Function IsGreater(d1 As Date, d2 As Date) As Boolean
    IsGreater = d1 > d2
End Function

Answer 2

试试这个

If dateRequired < orderDate Then
    Debug.Print "this should generate an error."
End If

Answer 3

Dim orderdate As Date

Dim earlydate As Date

orderdate = InputBox（“输入orderdate”）

earlydate =“12/12/2011”

如果orderdate＆gt;提前日期

  MsgBox "Error"

结束如果

日期功能VBA

3 个答案: