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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>JS的document.links函数使用示例</title> </head> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap" /> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm" /> </map> Number of links in this document: <script type="text/javascript"> document.write(document.links.length); document.write(document.links[0].id); </script> </body> </html>
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原文：http://www.cnblogs.com/tanxiang6690/p/6844923.html