说明：  本实验基于Telnet协议，使用Socket套接口，用java语言，实现Telnet服务。目的使学生了解Telnet协议、掌握在java编程中对telnet协议的使用、和使用Socket的编程技术及其远程登录网络访问服务的技术。
(Telnet protocol based on this study, the use of Socket socket, using java language, to achieve Telnet service. Telnet protocol aims to make students understand and master programming in java telnet protocol on the use of, and the use of Socket programming techniques and network access services, remote access technology.)