摘要： 文中通过分析图式语言及其图式程序的特征和它们内部表示的特殊要求．提出了一种特殊的村结构来体现和管理图式程序的层次结构，采用结为树与正文相结合的方法来解决图式程序内部表示由于频繁的插入、移动、定位等操作所带来的一系列问题，同时给出这种方法具体的设计和实现。

关键词: 图式语言, 图式程序, 结构树

Abstract: By analysing features of the graphical programming languag and their specral requests to the internal representation.this paper proposes a special structure tree that manages the level structure of a graphical program. combining structure tree with text part. this inethod effectively solves a lot of problems caused by frequently inserting. moving. locating and other operations components of graphical programs. We also shows how to design and implement to this method.

中图分类号: 

• TP311