21世纪，人类已经步入一个新的经济时代，这是一个从各个方面都重新整合和飞速运转的时代。在我国，先是由于产业结构调整、城乡人口与经济互动等原因，出现了产业工人的“下岗”和“再就业”问题；继而又由于二十多年中国高等教育的积累与普及、政治体制和科技体制改革，知识 In the 21st century, mankind has entered a new era of economy. It is an era of reintegration and rapid operation in all aspects. In our country, firstly, the problem of “layoffs” and “reemployment” of industrial workers has emerged due to such factors as the adjustment of industrial structure, the interaction between urban and rural population and economy, and then, due to the accumulation and popularization of China’s higher education over the past 20 years, the political system and Science and technology system reform, knowledge