索引是一种常用的提供线索型的独立检索工具,它能帮助人们迅速查检所需的文献和资料,减少查找的盲目性,并有助于克服记忆的局限性,扩大检索效果,节省时间和精力。索引是一种检索情报源,是满足用户情报检索和情报咨询的手段,也是情报报道的重要方式。索引学不仅是检索文献情报的工具,同时也是控制文献情报的手段,了解科学 Index is a commonly used clues-based independent search tool that can help people to quickly check the required literature and information to reduce the blindness of the search, and help overcome the memory limitations, to expand the search results and save time and energy. Index is a source of information retrieval is to meet the user information retrieval and information consulting means, but also an important way of intelligence reporting. Indexing is not only a tool to retrieve documentary information, but also a means to control documentary information, to understand science