这串代码对吗
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<p id ="intto"> my class</p>
<ul>
<li>Javascript</li>
<li>jquery</li>
<li>java</li>
<li>PHP</li>
</ul>
<script type="text/javascript">
var list=document.getElementsByTagName("li");
var i =list[0].innerHTML
document.write(list.length);
document.write(i)
</script>
</body>
</html>
