Teigha对应cad版本

AC1009 - DWG Release 11/12 (LT R1/R2)
AC1012 - DWG Release 13 (LT95)
AC1014 - DWG Release 14, 14.01 (LT97/LT98)
AC1015 - DWG AutoCAD 2000/2000i/2002
AC1018 - DWG AutoCAD 2004/2005/2006
AC1021 - DWG AutoCAD 2007/2008/2009
AC1024 - DWG AutoCAD 2010/2011/2012
AC1027 - DWG AutoCAD 2013/2014/2015/2016/2017
AC1032 - DWG AutoCAD 2018

Teigha对应cad版本

原文：https://www.cnblogs.com/sinceret/p/12218330.html