基于Delphi的即时通讯系统的设计

被称为信息时代的今天,互联网应用于各个领域。人们交流的需求和网络的发展互为推动力,很多开发技术成熟的广域网上的即时通讯工具,如MSN、QQ等被大家所熟悉并广泛应用,但这些产品的实现属于商业机密,具体细节不可得之。文章论述了基于局域网的即时通讯系统的设计方法,以期借此理解网络协议以及网络通信工具的实现原理和方法。

Design of instant communication system based on Delphi

Internet applies to various fields in this imformation era. People＇s demand for communication and the development of Internet promot each other. Some communication tools with the developed technologies, such as MSN and QQ are all familiar and widely used, but the implementation of these products are trade secret, so the details is not available. A simple design method of LAN-based instant communication system is discussed, in order to know the network protocols, as well as the principle of network communication tools.