例如:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>title</title>
</head>
<body>
<a href="aaa.asp?id=1"> I want to get this text </a>
<div>
<h1>this is my want!!</h1>
<b>this is my want!!!</b>
</div>
</body>
</html>
结果是:
I want to get this text
this is my want!!
this is my want!!!