1.引言在电脑网络和手机出现之前,电报是最重要的可以说是唯一的远距离快速传送文字信息的方法。在欧美,它从1835年被发明起,一直使用到本世纪初,而汉字电报则从1873年起一直使用到前几年(四码电报终止于1980年代中期)。 1. Introduction Prior to the advent of computer networks and cell phones, telegraphs were the single most important and arguably the only way to quickly transfer text messages over long distances. In Europe and the United States, it was invented in 1835 and used until the beginning of this century. The Chinese telegraph has been in use for a few years since 1873 (the four-yard telegram ended in the mid-1980s).