获取系统临时目录

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Private Declare Function GetTempPath Lib "kernel32" Alias "GetTempPathA" (ByVal nBufferLength As Long, ByVal lpBuffer As String) As Long

Private Function GetTmpPath() As String
    Dim tmpBuffer As String
    tmpBuffer = String(255, Chr(0))
    GetTempPath 256, tmpBuffer
    GetTmpPath = Trim(Left(tmpBuffer, InStr(1, tmpBuffer, Chr(0)) - 1))
End Function