VBA：保存而不覆盖现有文件

Question

如何确保我的 VBA 代码在保存时不会覆盖现有文件？

示例：我将每张工作表保存为新工作簿，并希望拥有 v1、v2、v3 等。使用下面的代码，我总是覆盖现有文件，就像每个文件一样我保存的文件名相同，以“_V1”结尾...

    NewWbName = Left(wbSource.Name, InStr(wbSource.Name, ".") - 1)

For i = 1 To 9
    'check for existence of proposed filename
    If Len(Dir(wbSource.Path & Application.PathSeparator & NewWbName & "_V" & i & ".xlsx")) = 0 Then
        wbTemplate.SaveAs wbSource.Path & Application.PathSeparator & NewWbName & "_V" & i & ".xlsx"
        Exit For
    End If
Next i

If i > 9 Then
    '_V1.xlsx through _V9.xlsx already used; deal with this situation
    MsgBox "out of options"

      wbTemplate.Close False 'close template
    Next wsSource

    wbSource.Close False 'close source


End If
End Sub

Answer 1

建议对这么多版本使用日期和时间戳。

“V”和格式（日期，“yyyymmdd”）和格式（时间，“hhmmss”）和“.xlsx”

是的，您可能仍想检查现有文件，但用户很少会在不到一秒的时间内提交输入

Answer 2

遍历各种 _Vn.xlsx 变体，直到找到不存在的变体。

dim i as long, NewWbName as string

NewWbName = Left(wbSource.Name, InStr(wbSource.Name, ".") - 1)

for i=1 to 9
    'check for existence of proposed filename
    if len(dir(wbSource.Path & Application.PathSeparator & NewWbName & "_V" & i & ".xlsx")) = 0 then
        wbTemplate.SaveAs wbSource.Path & Application.PathSeparator & NewWbName & "_V" & i & ".xlsx"
        exit for
    end if
next i

if i>9 then
    '_V1.xlsx through _V9.xlsx already used; deal with this situation
    msgbox "out of options"
end if

如果您要将循环提高到两位数，也许... & "_V" & Format(i, "00") & ".xlsx 会更好，以便按名称排序的文件夹将它们按正确的顺序排列。