自从托夫勒预测人类将进入后工业时代或信息时代以来，发达国家社会已基本信息化，我国也在信息化方面取得明显的进展。物质、能量和信息被列为人类的三大资源。农业社会以物质生产为主，可满足人类的基本生活需要；工业社会以生产能量为主，这扩展了人的体力，因而同时也极大 Since Toffler predicted that mankind will enter the post-industrial era or the information age, the society in developed countries has been basically informatized, and China has made remarkable progress in informationization. Material, energy and information are listed as the three major human resources. In agricultural society, the material production mainly meets the basic needs of humankind. The industrial society mainly produces energy, which expands the man’s physical strength and therefore also greatly