此方法選取匹配大於指定索引值的所有元素:角標值從0開始計數
<!DOCTYPE html>
<html lang='zh-cn'>
<head>
<title>Insert you title</title>
<meta http-equiv='description' content='this is my page'>
<meta http-equiv='keywords' content='keyword1,keyword2,keyword3'>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type='text/javascript' src='./js/jquery-1.12.1.min.js'></script>
<script type='text/javascript'> $(function(){ var size = $('#list li:gt(3)').size(); alert(size); }); </script>
</head>
<body>
<ul id='list'>
<li></li>
<li class='eq-selector'></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</body>
</html>