The mechanics of Common Gateway Interface (CGI), as the way to realize the interactive data transferring between Web browser and HTTP server, is studied in this paper.

• WWW（WorldWideWeb）是Internet上广泛应用的超媒体信息查询系统，其用户与服务器之间信息交互访问功能依靠使用公共网关接口CGI（CommonGatewayInterface）程序得以实现。