This article introduces the extension analysis for theobject-oriented programming technology, discusses the object matter-element's “multi-value",and presents the transformation conditions of the object matter-element and the rules of decomposition and combination.The compatible and non-comaptible problem in computer development is considered by man-machine interface's DVI. At the same time,the concept of “replace prices” is presented.Taking the word processing software for example,extension analysis used in the optimization of object-oriented programming works well.%在计算机面向对象技术中引入可拓分析,探讨了作为对象物元的“多重价值”,提出了这种对象物元的变换条件、对象物元分解和组合的规则,并从人机接口中的DVI来透视计算机发展中“相容与不相容问题”,同时给出了“替代价格”的概念,以字处理软件为例进行分析,说明可拓分析用于面向对象程序设计的优化能产生良好的效果.
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