DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="jquery-3.4.1.min.js">script>
<title>Documenttitle>
head>
<body>
<ul>
<li id="bj" name="beijing" xxx="yyy">北京li>
<li id="tj" name="tianjin" >天津li>
ul>
<input type="checkbox" id="hobby" checked="checked">
body>
<script>
//获取北京节点的name的属性值
alert($("#bj").attr("name"));
//设置北京节点的name属性值为dabeijing
$("#bj").attr("name","dabeijing");
alert($("#bj").attr("name"));
$("#bj").attr("discription","didu");
alert($("#bj").attr("discription"));
//删除北京节点的name属性并检验name属性的存在
$("#bj").removeAttr("name");
alert($("#bj").attr("name"));
//获取hobby的选中状态
alert($("#hobby").attr("checked"));
/**
* jQuery新增函数
* prop property
* prop函数适用于固有属性：
* checked = checked selected=selected
* attr函数适用于其他的属性
*/
script>
html>