摘要： 本文着重介绍了不同CAD系统之间数据交换标准IGES和DXF的交换方法,讨论了它们的特点、交换技术、文件结构以及数据交换中存在的问题和对策。

关键词: CAD, 数据交换

Abstract: Exchange standards IGES and DXF, and exchange methods are introduced. Emphasis is placed on the features, exchange technology, and file structures of both standards, including the policies adopted to solve problems existing in data exchange.