1引　言进入90年代以来,以美国为代表的发达国家都在加紧国家信息基础设施即信息高速公路建设,并且把图书馆的作用放在非常重要的位置。图书馆作为社会重要的信息资源聚集地,理所应当是国家信息基础设施的资源提供者。由于图书馆面向社会的服务功能早已被人们接受,因此,它在当 1 Introduction Since the 1990s, the developed countries, represented by the United States, are stepping up construction of the national information infrastructure, namely the information superhighway, and have placed the role of libraries in a very important position. Library as a social gathering of important information resources, should be the national information infrastructure resources provider. Since libraries are socially accepted, service functions have long been accepted by people, so it is in the midst of it