Internet是本世纪末兴起的以提供信息为主的计算机互联网络，它把计算机技术、通信技术和多媒体技术融为一体。CHINANET是邮电部门经营的中国公用Internet，是中国的Internet骨干网，向国内所有用户提供Internet接入服务。目前CHINANET在北京、上海、广州等31个城市设立了网络 The Internet is a computer-based network that has emerged from the end of this century to provide information. It combines computer technology, communication technology and multimedia technology. CHINANET is a Chinese public Internet operated by the post and telecommunications department. It is China’s Internet backbone and provides Internet access services to all domestic users. Currently CHINANET in Beijing, Shanghai, Guangzhou and other 31 cities set up a network