jquery遍历html所有对象

1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5 <title>jquery</title>
6 <script type="text/javascript" src="jquery-1.4.2.min.js"></script>
7 <script type="text/javascript">
8 $(function(){
9     $("body *").each(function(){
10         alert($(this).html());
11     });
12 });
13 </script>
14 </head>
15
16 <body>
17 <div class="a1">Node 1</div>
18 <div>Node 2</div>
19 <div class="a2">Node 3</div>
20 <div>Node 4</div>
21 <div>Node 5</div>
22 <div>Node 6</div>
23 <div>
24 Node 7
25 <div>Child node</div>
26 </div>
27 </body>
28 </html>