从人类文明的发展史来看,自有文字以来,书信作为基本的通信方式绵延达数千年之久,除了传送书信的邮政系统日益先进完善之外,信息传播的介质并没有本质的变化。直到贝尔发明了电话以后,此种情况才略有改观。但即使后来又发明了传真,书信在人们的生活中仍处于重要的位置。 然而,如今越来越多的人相信,这一情况在下个世纪肯定将大有改变。从 From the history of the development of human civilization, since the writing has been made, letters and mail have been extended as the basic means of communication for thousands of years. Apart from the increasingly advanced postal system for delivering letters, there has been no fundamental change in the medium for information dissemination. Until Bell invented the phone, this situation only slightly changed. But even if fax was invented later, the letter still occupies an important position in people’s life. However, more and more people are now convinced that this situation will surely change drastically in the next century. From