为什么变量在FOR循环外面是一个一个删除的,到了FOR循环里面就一次两个了?
<!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");//获取div
var date=content.childNodes[i];//变量date为div中第i+1个子节点
for(i=0;i<content.childNodes.length;i++) //for循环,i小于div中子节点的长度
{
content.removeChild(date) //删除diiv中第i+1个子节点
}
}
</script>
<button onclick="clearText()">清除节点内容</button>
</body>
</html>