<%--
Created by IntelliJ IDEA.
User: lenovo
Date: 2020/7/3
Time: 9:27
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>jquery的筛选</title>
<script type="text/javascript" src="../js/jquery-3.2.1.js"></script>
<script type="text/javascript">
$(function () {
$('#btn').click(function () {
$('li:eq(3)').siblings().css('background-color','yellow');
})
});
</script>
</head>
<body>
<ul>
<li>Java入门到精通1</li>
<li>Java入门到精通2</li>
<li id="ww">Java入门到精通3</li>
<li>Java入门到精通4</li>
</ul>
<button id="btn">点击</button>
</body>
</html>
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