<!DOCTYPE
HTML
PUBLIC
"-//W3C//DTD
HTML
4.01
Transitional//EN">
<html>
<head>
<meta
http-equiv="Content-Type"
content="text/html;
charset=gb2312"
/>
<title>jquery
单选选中设定</title>
<script
type="text/javascript"
src="jquery-1.3.2.js"></script>
</head>
<body>
<p>1</p><p>2</p><p>3</p>
<input
type=button
onclick="labelCount();"
value="test">
<script>
function
labelCount(){
var
all
=
document.getElementsByTagName('p');
alert(all.length);
}
</script>
</body>
</html>
如果对您有帮助,请记得采纳为满意答案,谢谢!祝您生活愉快!
vaela
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