App下載
實(shí)例代碼( Tip: 登錄后體驗(yàn)更佳 )
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool在线教程(w3cschool.cn)</title>
</head>
<body>
<p id="demo">单击按钮获取按钮的第一属性的值。</p>
<button onclick="myFunction()">点我</button>
<script>
function myFunction(){
    var btn=document.getElementsByTagName("BUTTON")[0];
    var x=document.getElementById("demo");
    x.innerHTML=btn.attributes[0].value;
}
</script>
<p><strong>注意:</strong> In Internet Explorer 8 及更早的版本,attributes 属性将返回所有元素属性的集合，并且在这个例子手，显示“onclick”属性的值。</p>
</body>
</html>
 
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