<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<!--在jsp页面上引用js插件和css插件的写法-->
<script src="../js/jquery-3.3.1.min.js"></script>
<link href="../css/css.css" rel="stylesheet">
</head>
<body>注： ../ 为上一级目录 ./为根目录