<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<body>
<div id="content">
<h1>html</h1>
<h1>php</h1>
<h1>javascript</h1>
<h1>jquery</h1>
<h1>java</h1>
</div>
<script type="text/javascript">
function clearText(){
var content=document.getElementById("content");
var conCl=content.childNodes;
if(conCl[0]!=1)
{
content.removeChild(conCl[0]);
}
var x=content.removeChild(conCl[0]);
var newh1=document.createElement("h1");
newh1.innerHTML=x.innerHTML;
content.appendChild(newh1);
}
</script>
<button onclick="clearText()">清除节点内容</button>
</body>
</html>
stone310
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