宋柏霖的第十二个作业
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JQUERY基础语法</title>
<script type="text/javascript" src="jquery-3.3.1.js"></script>
</head>
<script type="text/javascript">
$(document).ready(function(){$("div").hide()
$("button").click(function () {
$("div").show()
})
})
</script>
<div style="height: 100px;width: 100px;background: pink;"></div>
<button>显示</button>
</body>
</html>