<html>
<head>
<meta charset="UTF-8">
<title>b</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript">
function change2text(data){
$("body").append("<div id=\"change2text\" style=\"display:none;\">" + data + "</div>")
var result = $("#change2text").text();
$("#change2text").remove();
return result;
}
function ff(){
var html = '<span style="background:red;">这是一段文字</span>';
alert(html);
alert(change2text(html));
}
</script>
</head>
<body>
<input type="button" value="点我" onclick="ff()" />
</body>
</html>