用VB打开dxf文件 ...............\5月23日.vbp ...............\5月23日.vbw ...............\Drawing000.dxf ...............\Drawing2k.dxf ...............\DXF.bas ...............\dxf.frm ...............\dxf.frx ...............\MSSCCPRJ.SCC ...............\RNISO3.dxf