【摘要】 本文对目前图书馆在文献数字化及网络服务中常用的电子文献的格式作了系统地归纳和整理 ,对他们各自的优缺点进行了阐述和对比分析。同时对各种电子读物资料的提取、转存作了一定的探讨 ,对读者提取电子读物中的有用资料有一定的参考借鉴意义。更多还原

【Abstract】 In library’s documents digitization and internet service nowadays, this paper systematically arranges the pattern of usual electronic documents, and also makes a systematic exposition and analysis of their own characteristics. Meanwhile this paper makes a research on the withdrawal and changing storage of those electronic materials, which is used for reference for readers更多还原