<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>无标题文档</title> </head> <body> <ul id="test"> <li>JavaScript</li> <li>HTML</li> </ul> <script type="text/javascript"> var otest = document.getElementById("test"); var li = document.createElement(‘li‘); li.innerHTML = ‘PHP‘; otest.appendChild(li); </script> </body> </html>
原文：http://www.cnblogs.com/gide/p/4616604.html