现代网络和通信技术的发展使“地球村”的交易方式发生了巨大变化。人们不再局限于本地区之间的面对面交易,而是向往更为广阔的全球市场。电子商务使处在地球两端的两个人不用见面也能交易。其时间和空间的跨度都相当大,并且降低的商品流通和交易的成本。电子签名相当于电子印章,它实现了电子商务中电子合同的签定。 The development of modern networks and communications technologies has brought about tremendous changes in the way transactions are conducted in the “global village.” Instead of confronting face-to-face deals between the regions, people aspire to a much broader global market. E-commerce allows two people at both ends of the globe to trade without having to meet. The span of time and space are quite large, and reduce the cost of commodity circulation and transaction. Electronic signature is equivalent to electronic seal, which realizes the electronic contract in electronic commerce.