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茫茫网海之中,怎样找到自己需要的信息或网站呢?初上网者往往感到漫无边际,上网很长时间的用户,常常也受到很多的困扰。其实很简单,就象电信局有114查号台一样,网上也有许多提供信息查询、搜索的站点,通过这些站点,很容易找到自己需要的东西。这些“查号台”,网上称做搜索引擎、搜寻引擎(Search En-gine)或导航站点,由于它像一扇引导人们进入互联网的大门,所以又被称为入门网站(portal)。 一、搜索引擎的分类 搜索引擎有两种基本类型: (一)以分类目录为主的搜索引擎 这类搜索引擎提供了一份按类别编排的国际互联网网站目录,各类下边,排列着属于这一类别的网站的
How to find the information or websites you need? The Internet users often feel boundless, users who surf the Internet for a long time often get a lot of trouble. In fact, it is very simple. Just as the Bureau of Telecommunications has 114 check-in stations, there are many websites that provide information inquiry and search on the Internet. Through these sites, it is easy to find what they need. These “search engines”, online called search engines, search engines (search engines) or navigation sites, are also known as portals because they act like gateways that lead people into the Internet. First, the classification of search engines There are two basic types of search engines: (a) to the directory-based search engine This type of search engine provides a list of categories organized by the Internet site, all kinds of below, lined with this A category of websites