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《普通高中信息技术课程标准》中“信息采集与加工”模块是信息处理的起点。其中,通过计算机和网络进行信息的搜索是信息采集的重要途径。为了帮助人们在浩瀚的因特网中快捷、有效地搜索到所需信息,计算机技术专员研发了搜索引擎及相关技术,主要是针对Web页面的文本检索工具,能够迅速、准确地检索到用户需要的信息。在此,将重点研究全文搜索引擎的基本工作原理、提炼关键词的技巧及搜索引擎的灵活运用。
Information Technology Course Standard for Senior High School “,” Information Collection and Processing "module is the starting point for information processing. Among them, the computer and network information search is an important way to collect information. To help people quickly and effectively search for the information they need on the vast Internet, computer technologists have developed search engines and related technologies, primarily text retrieval tools for Web pages that retrieve information users need quickly and accurately . Here, we will focus on the basic working principle of the full-text search engine, the techniques of refining keywords and the flexible use of search engines.