<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http:///TR/xhtml1/DTD/">
<html xmlns="http:///1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>The parent node in jQuery obtains the child node string</title>
<script type="text/javascript" src="jquery-2.1."></script>
<script type="text/javascript">
$(function(){
$("#btn").click(function(){
var str = $("#div_child").html();
alert(str);
});
});
</script>
</head>
<body>
<div >
<table>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>
<th></th>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
<input type="button" value="get value"/>
</div>
</body>
</html>