问VBA复制错误，将多个工作表导入中央工作簿数据库

EN

rngSrcCountry.Copy Destination:=rngDstDatabase

Sub InsertDatabase()

Dim FileNames As Variant 'Group of files to be looped through
Dim FileName As Variant 'Country of focus (file open)
Dim ActiveCountryWB As Workbook 'Active workbook of country
Dim wksSrcCountry As Worksheet 'Import worksheet in country
Dim wksDstDatabase As Worksheet 'Data worksheet in database
Dim rngSrcCountry As Range 'Range of data in import worksheet
Dim rngDstDatabase As Range 'Range of data in data worksheet in database
Dim lngSrcLastRow As Long
Dim lngDstLastRow As Long

'Set destination reference
Set wksDstDatabase = ThisWorkbook.Worksheets("Data")

MsgBox "In the following browser, please choose the Excel file(s) you want     
to copy data from"
FileNames = Application.GetOpenFilename _
(Title:="Please choose the files you want to copy data FROM", _
FileFilter:="All Files (*.*),*.*", _
MultiSelect:=True)

If VarType(CountriesGroup) = vbBoolean Then
    If Not CountriesGroup Then Exit Sub
End If

'Set initial destination range
Set rngDstDatabase = wksDstDatabase.Cells(lngDstLastRow + 1, 1)

'Loop over all files selected by user, and import the desired "Import" sheet
For Each FileName In FileNames

'Set country workbook references
Set ActiveCountryWB = Workbooks.Open(FileName)
Set wksSrcCountry = ActiveCountryWB.Sheets("Import")

'Identify last occupied row on import sheet
lngSrcLastRow = LastOccupiedRowNum(wksSrcCountry)

'Store source data
With wksSrcCountry
    Set rngSrcCountry = .Range(.Cells(1, 1), .Cells(lngSrcLastRow, 20))
    rngSrcCountry.Copy Destination:=rngDstDatabase
End With

'Redefine destination range now that new data has been added
lngDstLastRow = LastOccupiedRowNum(wksDstDatabase)
Set rngDstDatabase = wksDstDatabase.Cells(lngDstLawRow + 1, 3)

Next FileName

End Sub

Public Function LastOccupiedRowNum(Sheet As Worksheet) As Long
Dim lng As Long

If Application.WorksheetFunction.CountA(Sheet.Cells) <> 0 Then
    With Sheet

       lng = .Cells.Find(What:="*", _
                          After:=.Range("A1"), _
                          Lookat:=xlPart, _
                          LookIn:=xlValues, _
                          SearchOrder:=xlByRows, _
                          SearchDirection:=xlPrevious, _
                          MatchCase:=False).Row
    End With
Else
    lng = 1
End If
LastOccupiedRowNum = lng
End Function