【摘要】 本文在阐述Ｏ－Ｏ技术的基本原理──抽象性、封装性和继承性之后，从Ｏ－ＯＡ、Ｏ－ＯＤ的角度对尺寸驱动的二维参数化设计系统进行了剖析．在对图形和尺寸这两大基本模块的数据、操作和功能进行了分析之后，又进行了数据抽象和过程抽象并将数据和过程适当地封装于不同层次的类（ｃｌａｓｓ）上，从而实现了系统各个环节的有机结合．最后，用Ｏ－ＯＰ语言Ｃ＋＋例举了其实现过程．更多还原

【Abstract】 After introducing abstraction, encapsulation and inheritance of Object-Oriented technology, the article illustrates a dimension driven parametric design system in the view of O-OA and O-OD. Based on analysis of data, operations and functions in figure & dimension modules, data abstract & procedure abstract have been accomplished and encapsulated at different levels of classes. Thus the organic connection between various system links are formed. At last, the paper provides the implementatioll of C++ language.更多还原