<html>
<body>
<h3>以下实例演示了如何访问 PROGRESS 元素</h3>
下载进度条
<progress id="myProgress" value="75" max="100">
</progress>
<p>点击按钮获取当前进度条值(下载进度) 。</p>
<p id="demo"></p>
<button onclick="myFunction()">点我</button>
<script>
function myFunction()
{
var x = document.getElementById("myProgress").value;
document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>