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" xml:lang="en">
3 <head>
4 <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
5 <title></title>
6 </head>
7 <body>
8 <div id="test">
9 <p id="p1"></p>
10 <p id="p3"></p>
11 <p id="p4"></p>
12 </div>
13 <script type="text/javascript">
14 var oTest = document.getElementById('test');
15 var oP1 = document.getElementById('p1');
16 var oP3 = document.getElementById('p3');
17 var oP4 = document.getElementById('p4');
18
19 var oP2 = document.createElement('p');
20 oP2.setAttribute('id','p2');
21 oP2.appendChild(document.createTextNode("Hello world!"));
22
23 //appendChild无法设置想要插入的明确位置
24 //oTest.appendChild(oP2);
25
26 //insertBefore则可以设置
27 //oTest.insertBefore(oP2,null);
28 //oTest.insertBefore(oP2,oP1);
29 //oTest.insertBefore(oP2,oP1.nextSibling);
30 //oTest.insertBefore(oP2,oP3.previousSibling);
31 //oTest.insertBefore(oP2,oTest.childNodes[0]);
32 </script>
33 </body>
34 </html>
