(一 )如同蒸汽机带给人类社会飞跃发展的意义一样 ,高速发展的电子技术又一次对人类社会的各个领域产生了冲击性的影响 ,给人们的生活带来不可言喻的美妙变化。电子通信技术中的电子邮件功能大大扩展了传统邮件的通信功能 ,它通过计算机网络系统不仅可以沟通点到点的联系 ,还可 (1) Just as the steam engine has brought great significance to the rapid development of human society, the rapid development of electronic technology once again has an impact on all fields of human society and has brought unspeakable changes to people’s lives. The e-mail function in electronic communication technology greatly expands the communication function of traditional mail. It can not only communicate the point-to-point connection through the computer network system, but also