AutoCad2010版DXF组码说明，在用ObjectARX开发AutoCad程序时，可能会用到图元的组码，通过本文档可快速查找实体对应的组码，方便开发。-Version AutoCad2010 DXF group codes described in AutoCad program development time by ObjectARX, may be used primitive group codes, through this document can quickly find t

包含新人入门需要掌握的绝大部分代码，有兴趣的同学不妨下载一看。(There are many codes for green hands.)