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<!DOCTYPE html> <html> <body> <h1>演示如何访问 AREA 元素</h1> <img src="/i/html/planets.jpg" border="0" usemap="#planetmap" /> <map name="planetmap" id="planetmap"> <area id="myArea" shape="circle" coords="180,139,14" href ="/demo/tags/venus.html" target ="_blank" alt="Venus" /> </map> <p>单击按钮可获取该区域的 URL。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myArea").href; document.getElementById("demo").innerHTML = x; } </script> </body> </html>