面向对象设计原则在改善程序结构中的应用  

Application of Object-oriented Design Principles on Improving the Program Structure

作　　者：邬昌兴[1] 佘学兵[1] 

机构地区：[1]江西蓝天学院计算机系,江西南昌330029

出　　处：《科技广场》2010年第8期57-60,共4页Science Mosaic

摘　　要：面向对象的设计原则用于指导系统的设计和开发,较好的设计只需很少的改变就可以应对需求的变化。本文从一个常见的错误处理程序出发,在充分分析可能出现的需要改变的基础上,应用开放闭合、单一职责等设计原则和访问者设计模式对现有代码进行重构,使其更富有弹性、更容易维护,并能够适应需求的不断变化。Object-oriented design principles is often used to guide the system design and development, better design can respond to changes in demand by little change. In this paper, starting with a common error handler, it refactors the existing code guiding by Open-Closed principle, Single-Responsibility principle and visitor design pattern through the full analysis of the possible changes in demand. The refactoring makes the code more flexible, easier to maintain and able to adapt to the changing needs.

关 键 词：程序结构 设计原则 面向对象 设计模式 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]