入二十一世纪，计算机技术迅速向着网络化、集成化方向发展。传统的单机版应用软件正在逐渐退出舞台，取而代之的是支持网络、支持多种数据信息（多媒体）的新一代网络版应用软件，而目前网络版软件中似乎存在着两种不同的趋势，一种是称为客户端——服务器的C/S结构应用系统，这类软件具有结构严谨，运行效率高，服务器端压力小，安全性好等优点，被广泛运用于局域网中。而另一种，也是本毕业设计所采用的，是称为浏览器——服务器的B/S结构应用系统，它的特点是在客户端直接采用了功能强大的浏览器软件作为界面，其优点在于软件开发效率-Into the twenty-first century, computer technology rapidly toward network-based, integrated direction. Traditional stand-alone application software from the stage is gradually replaced by the support network to support a wide range of data and information (multimedia) version of a new generation of network applications, the current online version of the software seems to exist in two different trends, one species is known as a client- server s C/S structure of applications, such software has a well-structured, efficient operation, server-side pressure on small, safe, etc., are widely used in local area network. While another is also used in the graduation project is known as a browser- the server of the B/S structure of the application system, which is characterized by the client directly using a powerful software as a browser interface, and its advantages lies in the efficiency of software development