问答系统是采用Web2.0技术制作出来的更加注重用户“互动” 的应用系统。用户不再像以前一样被动的接收信息，而是成为可以根据自己本身的需要跟网站进行信息传递的交流者。本文使用PHP语言实现了基于B/S模式的紫金问答系统。用户可根据自身的需求发布问题、回答问题、检索答案等。

Question answering system is made by Web2.0 technology, which pays more attention to user’s "interaction". Users no longer receive information as passively as before, but become communicators who can transmit information to website according to their own needs. In this paper, PHP language is used to realize Zijin question answering system with B/S mode. Users can publish questions, answer questions and retrieve answers according to their own needs.