jQuery基础语法
<!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>jquery基础语法</title>
<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
</head>
<body>
<script>
// $(选择器).操作方法()
$(document).ready(function(){
//隐藏div
$('div').hide();
// 点击按钮显示div
$('button').click(function(){
$('div').show();
})
})
</script>
<button>点击显示</button>
<div style="width: 150px;height: 100px;background: aquamarine;">
</div>
</body>
</html>
