摘要： 介绍了面向对象设计和设计模式，并以虚拟教室系统中的共享白板为基础讨论 了面向对象软件重构过程中的一些问题。将设计模式和重构贯穿于面向对象的软件开发和演 化过程可以得到更加灵活的、可复用的软件。

关键词: 共享白板, 设计模式, 面向对象, 重构

Abstract: A brief introduction of object-oriented design and design patterns is given in this article. Some issues arising from object-oriented software refa toring are also discussed in terms of sharing whiteboard used in a virtual class room system. Using design patterns and refactoring through the object-oriented s oftware development and evolutionary design, a more flexible and reusable softwa re can be got.

中图分类号: 

• TP393.09