大大大大雄
2016-06-01 11:05
<!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 a= document.getElementsByTagName("h1")
for(var i=0;i<a.length;i++){
content.removeChild(a[i])=null;
}
}
</script>
<button onclick="clearText()">清除节点内容</button>
<!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 a= document.getElementsByTagName("h1"); var len=a.length; for(var i=0;i<len;i++){ content.removeChild(a[i]); } } </script> <button onclick="clearText()">清除节点内容</button>
试试for (var i=a.length-1; i>0; i--)
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