张兴华:
1、右键CAD文件,打开方式选择记事本打开,用记事本打开后,开头会有个比如“ac1018”,这是标明版本号的。具体对应如下ac1015-DWgfromAutoCAD2000/2000i/2002(orlt,maporrelativedesktopversion)ac1018-DWgfromAutoCAD2004/2005/2006(orotherProductinthe"2004","2005"or"2006"family)ac1021-DWgfromAutoCAD2007/2008/2009(....