<![CDATA[<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<p id="p1">Hello world!</p>
<script>
function ChangeText()
{
document.getElementById("p1").innerHTML="Hello Runoob!";
}
</script>
<input type="button" onclick="ChangeText()" value="修改文本" />
</body>
</html>]]>