摘要
介绍了应用系统开发工具ＰｏｗｅｒＢｕｉｌｄｅｒ的特点、面向对象的程序设计技术及 ＰｏｗｅｒＢｕｉｌｄｅｒ在市话计费系统开发中的应用。
This paper describes properties of the application system developping tool -- PowerBuilder, the object--oriented programming and application with PowerBuilder in the Beijing Local Telephone's Billing Syetem.
