摘要
对比阐述了基于ＡｕｔｏＣＡＤ平台进行二次开发的方法，比较了它们的优缺点，对ＯｂｊｅｃｔＡＲＸ开发ＣＡＤ系统进行了详细的叙述。
The methods of secondary development in AutoCAD desktop are comparatively discussed. Their merits and shortcomings are compared,The methods of ObjectARX secondary development are described in detail.
