<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>常见可见性过滤选择器</title>
<script src="scripts/jquery-3.1.1.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
//hidden 不可见的
alert($("li:hidden").text());
//visible 可见的
alert($("li:visible").length);
alert($("li:visible").text());
});
</script>
</head>
<body>
<div>
<div id="div1">
<h3>手机品牌</h3>
<ul>
<li class="one">苹果</li>
<li>华为</li>
<li class="one">vivo</li>
</ul>
<h3>电脑品牌</h3>
<ul>
<li>苹果</li>
<li>联想</li>
<li hidden="true">戴尔</li>
<li hidden="true">东芝</li>
</ul>
</div>
<div>
<h3>销量排行</h3>
<ol>
<li>vivo</li>
<li>苹果</li>
<li>华为</li>
</ol>
</div>
</div>
</body>
</html>