<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").attributes["value"];
document.write(d.name);
document.write(d.value);
//显示value aaa
</script>
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").getAttribute("value");
document.write(d);
//显示 aaa
</script>
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").setAttribute("good","hello");
alert(document.getElementById("t").innerHTML)
</script>
<head>
<meta charset="UTF-8">
<title></title>
<script>
window.onload = function (){
var oBox = document.getElementById('box');
alert( document.body.innerHTML );
oBox.setAttribute('value','name');
alert( document.body.innerHTML );
attr = document.createAttribute('hallo');
alert( document.body.innerHTML );/*同上*/
attr.nodeValue = 'world';/*对自定义属性进行编辑*/
alert( document.body.innerHTML );/*同上*/
oBox.setAttributeNode(attr);/*对标签插入自定义属性*/
alert( document.body.innerHTML );/*改变*/
};
</script>
</head>
<body>
<ul id="box">
</ul>
</body>
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").removeAttribute("value");
alert(document.getElementById("t").innerHTML)
</script>
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").getAttributeNode("value");
document.write(d.name);
document.write(d.value);
//显示 value aaa
</script>
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.createAttribute("good");
document.getElementById("sss").setAttributeNode(d);
alert(document.getElementById("t").innerHTML);
</script>
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").getAttributeNode("value")
document.getElementById("sss").removeAttributeNode(d);
alert(document.getElementById("t").innerHTML);
</script>
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