vba写txt文件
用vba往txt文件中写东西，怎么样能从空白行开始写？不覆盖原来txt文件中存在的东西 vba
[解决办法]

Sub test1111()
    Dim fso, sFile
    Dim str, filepath, filename As String
    Dim linecount As Integer
    filepath = "d:\"
    filename = "1.txt"
    Const ForReading = 1, ForWriting = 2, ForAppending = 8, TristateFalse = 0 'ForAppending从文件末尾追加
    Set fso = CreateObject("Scripting.FileSystemObject")
    If fso.FileExists(filepath & filename) = True Then
        Set sFile = fso.OpenTextFile(filepath & filename, ForAppending, TristateFalse)
        sFile.Write ("Hello world!")
        'sFile.Writeline ("Hello world!")
        sFile.Close
    End If
    Set fso = Nothing
    Set sFile = Nothing
End Sub