【摘要】 从开发web应用程序的角度, 对二层结构的客户端/服务器模式(C/S模式)和基于COM组件的三层结构模式进行了比较. 阐述了COM组件的涵义, 并基于COM组件, 设计和实现了电子邮局的三层结构模式. 此电子邮局无论应用于Internet还是应用于企业内部都具有重要意义.更多还原

【Abstract】 The comparison between the Client/Server software architecture and the three-level model is made inview of the development of web application program, and some knowledge on the component and componentobject model is illustrated. The three-level model of a email project based on COM is designed and completed,which will be very useful in internet or in company interior.更多还原