现代图书馆的信息资源可分为传统文献馆藏和虚拟信息馆藏的二重组合。从信息资源建设的角度出发,虚拟信息资源不是一个物理概念,也不是独立存在的实体,而是一个跨国家、跨地区的信息空间。其资源和服务的范围大大超出传统意义上的馆藏,是与国内外乃至全球相连接的信息资源系统。同时,现 Modern library information resources can be divided into the traditional literature collection and virtual information collection of the dual portfolio. From the perspective of information resources construction, virtual information resources are not a physical concept, nor are independent entities, but a cross-national and trans-regional information space. Its scope of resources and services far beyond the collection of the traditional sense of the world is connected with domestic and international information resources and systems. At the same time, now