tryjsref_map_name2 在线代码实例

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<!DOCTYPE html>
<html>
<body>
<img src="planets.gif" width="145" height="126" alt="Planets" usemap="#planetmap">
<map id="planetmap" name="planetmap">
  <area shape="rect" coords="0,0,82,126" alt="Sun" href="sun.htm">
  <area shape="circle" coords="90,58,3" alt="Mercury" href="mercur.htm">
  <area shape="circle" coords="124,58,8" alt="Venus" href="venus.htm">
</map>
<p>点击按钮修改图像地图的名称。</p>
<p id="demo"></p>
<button onclick="myFunction()">点我</button>
<script>
function myFunction()
{
document.getElementById("planetmap").name = "newMapName";
document.getElementById("demo").innerHTML = "name 属性的值从 'planetmap' 改为 'newMapName'.";
}
</script>
</body>
</html>
 
 
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运行结果
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