Excel轮换用VBA

Sub Replace(ByVal oldDate As Date, ByVal newDate As Date)

  
    Dim lngYLine As Long
    Dim intXLine As Integer
    Dim objFind As Object
    Dim strAddress As String
 
    Set objFind = Cells.Find(oldDate)
    If Not objFind Is Nothing Then
        strAddress = objFind.Address
        Do While Not objFind Is Nothing
            lngYLine = objFind.Cells.Row
            intXLine = objFind.Cells.Column
            Cells(lngYLine, intXLine).Value = newDate
            
            Set objFind = Cells.FindNext(objFind)
            If objFind Is Nothing Then
                Exit Do
            End If
        Loop
    Else
        MsgBox CStr(oldDate) + "  見つかりませんでした"
    End If
End Sub