Question

我一直在使用ADODB.Stream在我的VBA应用程序中读取和编写utf-8文件并取得了一些成功。唯一真正的问题是ADODB.Stream与本机VBA文件读取相比相当慢。通常，我会使用库存VBA Open，Input，Print，Close等功能，这些功能足够快。我没有尝试过任何Windows API或DLL解决方案，因为正确或错误的趋势是禁用API调用，DLL等。

我使用它来编辑一组文档的Open Office XML文件，然后将它们合并在一起。

这是我对utf-8文件的读写函数。这些是从互联网上复制的。

Public Function readUtf8(fn As String) As String
    Dim stream As ADODB.stream: Set stream = New ADODB.stream
    stream.Charset = "utf-8"
    stream.Open
    On Error GoTo nofile
    stream.LoadFromFile fn
    readUtf8 = stream.ReadText() & ""
    stream.Close
    Set stream = Nothing
    Exit Function

nofile:
    stream.Close
    Set stream = Nothing
    readUtf8 = ""
End Function

反向写入函数或多或少是相同的。

Public Function writeUtf8(fn As String, txt As String) As Integer
    Dim stream As ADODB.stream: Set stream = New ADODB.stream
    stream.Charset = "utf-8"
    stream.Open
    stream.WriteText txt
    stream.SaveToFile fn
    stream.Close
    Set stream = Nothing
    writeUtf8 = 0

End Function

是否有更快的替代ADODB.Stream？

是否存在更快的ADODB.Stream替代方案？

0 个答案: