摘　要　该文以实例的形式介绍DXF 文件的结构,说明高级语言与CAD 的接口。 关键词　AutoCAD 的接口　DXF 文件-Abstract In this paper, examples of the form in order to introduce the structure of DXF files to illustrate high-level language and CAD interface. Key words AutoCAD interface DXF file