搜索引擎是人们在互联网上最常用到的工具。为了提高搜索的效率和准确度,更好地满足用户的信息检索需求,搜索引擎从最早的目录主题型的搜索引擎发展到检索型的搜索引擎、元搜索引擎、分布式搜索引擎,乃至现在的智能搜索引擎。一、搜索引擎的分类搜索引擎一词在国内外互联网领域 Search engines are the most commonly used tools on the Internet. In order to improve the efficiency and accuracy of search, and to better meet the user’s information retrieval needs, search engines from the earliest catalog theme search engine to search engine, meta search engine, distributed search engine, and now Intelligent search engine. First, the search engine classification Search engine in the Internet field at home and abroad