21世纪是信息经济时代，信息产业将成为支柱产业。以美国为例，在1995～1998年期间信息产业占美国GDP的8%，但它对美国实际的经济增长贡献率则达到35%，据称到2006年全美将有近半数劳动力资源被信息产业所雇用。而信息产业的发展却与光电子技术的发展有着紧密的联系。如果说微 The 21st century is an era of information economy, and the information industry will become a pillar industry. In the United States, for example, the information industry accounted for 8% of the US GDP during the period 1995-1998, but its contribution to the actual economic growth of the United States reached 35%. It is said that by 2006, nearly half of the labor resources in the United States will be used by the information industry. Hired. The development of the information industry has a close relationship with the development of optoelectronic technology. If you say micro