Private Const VID As Short = &H3689S

    Private Const PID As Short = &H8762S

    Private Const VID_NEW As Short = &H3689S

    Private Const PID_NEW As Short = &H2020S

    Private Const VID_NEW_2 As Short = &H2020S

    Private Const PID_NEW_2 As Short = &H2020S

    Private Const DIGCF_PRESENT As Short = &H2S

    Private Const DIGCF_DEVICEINTERFACE As Short = &H10S

    Private Const INVALID_HANDLE_VALUE As Short = (-1)

    Private Const ERROR_NO_MORE_ITEMS As Short = 259

 …………

end module

其中，module 是啥啊？这段要在哪里定义？