<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
li {
height: 60px;
}
</style>
</head>
<body>
<ul>
<li>1111</li>
<li class="demo"><p>1234</p></li>
<li>3333</li>
</ul>
<p>1222222</p>
<div>
<p></p>
<div>333333</div>
</div>
<script src="./jquery-1.12.1.min.js"></script>
<script>
$('li:eq(0)').css('background','pink');
$('p:eq(0)').css('background','green');
$('div p').html('这里是我的值');
$('div').children('p').html('哈哈哈')
console.log($('li:eq(0)').siblings('.demo'));
$('ul').find('.demo').css('background','blue');
// parents()找到的是包含body在内的所有祖先元素
console.log($('p').parent());
$('li').click(function(){
console.log($(this).html())
console.log(this.innerText)
})
</script>
</body>
</html>
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