日期:2014-05-16 浏览次数:20622 次
var oMain = $("main");
while(oMain.childNodes.length){
    oMain.removeChild(oMain.firstChild);
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<ul>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
</ul>
<input type="button" value="sdf" id='t' />
<script type="text/javascript">
    document.getElementById('t').onclick= function() {
        var s = document.getElementsByTagName('ul')[0];
        while(s.childNodes.length) {
            s.removeChild(s.firstChild);
        }
    }
</script>
</body>
</html>