当我们步入新世纪的时候,人类社会正开始由工业经济向知识型经济转变。具体地说,经济中信息的应用主要是反映在通讯的网络化,也就是所谓的网络经济。该网络就是指由卫星、光纤、电缆和电话线路将世界 As we enter the new century, human society is beginning to shift from an industrial economy to a knowledge-based economy. Specifically, the application of information in the economy is mainly reflected in the networking of communications, which is the so-called network economy. The network means that the world will be made up of satellites, optical fibers, cables and telephone lines.