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Uniform Resource Locators (URLs)

Uniform Resource Locators (URLs). Scheme. Port Number. Query. http://www.company.com:81/a/b/c.html?user=Alice&year=2008#p2. Host Name. Hierarchical portion. Fragment. <a> Examples. Full URL: <a href ="http://www.xyz.com/news/2009.html">2009 News</a>

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Uniform Resource Locators (URLs)

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  1. Uniform Resource Locators (URLs) Scheme Port Number Query http://www.company.com:81/a/b/c.html?user=Alice&year=2008#p2 Host Name Hierarchical portion Fragment CS 142 Lecture Notes: URLs and Links

  2. <a> Examples • Full URL:<a href="http://www.xyz.com/news/2009.html">2009 News</a> • Relative location:<a href="2008/March.html">same ashttp://www.xyz.com/news/2008/March.html • Absolute location in same site:<a href="/stock/quote.html">same ashttp://www.xyz.com/stock/quote.html • New location, same page:<a href="#sec3"> • Anchor definition:<a name="sec3">...</a> CS 142 Lecture Notes: URLs and Links

  3. Other Uses of URLs • Images: <imgsrc="icon.gif" /> • Stylesheets: <link rel="stylesheet" type="text/css" href="main.css" /> • Embedded page: <iframesrc="http://www.google.com" /> CS 142 Lecture Notes: URLs and Links

  4. CS 140 Lecture Notes: File Systems

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