摘要： 设计模式是人们在实践过程中总结出来的成功设计范例，它的正确选择和使用是发挥模式作用的关键。该文从模式的基本概念入手，详细讨论了选择设计模式的正确方法，并结合实例讨论了模式选择方法在计划追踪系统中的具体实现。

关键词: 设计模式, 模式选择, 计划追踪系统

Abstract: Design patterns are successful design examples which people summarized in practice. How to correctly select and use these patterns is important to bring them into play. This paper, beginning with basic conception of mode, discusses in detail how to correctly select method to design pattern . It also discusses the implementation of pattern selecting in the plan-track system as an example.

中图分类号: 

• TP311