昨天我問過這個問題,不過沒人回答到點上,今天搞定了.貼出來給覺得有用的朋友,希望其他朋友不用走彎路.

'文件內容讀取.
Function LoadFile(ByVal File)
    Dim objStream
    On Error Resume Next
    Set objStream = Server.CreateObject("ADODB.Stream")
    If Err.Number=-2147221005 Then
        Response.Write "<div align='center'>非常遺憾,您的主機不支持ADODB.Stream,不能使用本程序</div>"
        Err.Clear
        Response.End
    End If
    With objStream
        .Type = 2
        .Mode = 3
        .Open
        .LoadFromFile Server.MapPath(File)
        If Err.Number<>0 Then
    Response.Write "<div align='center'>文件<font color='#ff0000'>"&File&"</font>無法被打開，請檢查是否存在!</font></div>"
    Err.Clear
    Response.End
        End If
        .Charset = "GB2312"
        .Position = 2
        LoadFile = .ReadText
        .Close
    End With
    Set objStream = Nothing
End Function

'存儲內容到文件
Sub SaveToFile(ByVal strBody,ByVal File)
    Dim objStream
    On Error Resume Next
    Set objStream = Server.CreateObject("ADODB.Stream")
    If Err.Number=-2147221005 Then
        Response.Write "<div align='center'>非常遺憾,您的主機不支持ADODB.Stream,不能使用本程序</div>"
        Err.Clear
        Response.End
    End If
    With objStream
        .Type = 2
        .Open
        .Charset = "GB2312"
        .Position = objStream.Size
        .WriteText = strBody
        .SaveToFile Server.MapPath(File),2
        .Close
    End With
    Set objStream = Nothing
End Sub