Why is the reference to layui file invalid? Code:
<link rel="stylesheet" type="text/css" href="static/layui/css/layui.css"> <script type="text/javascript" src= "static/layui/layui.js"></script>
<link rel="stylesheet" type="text/css" href="/static/layui/css/layui.css">
static is missing "/"
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
<link rel="stylesheet" type="text/css" href="/static/layui/css/layui.css">
static is missing "/"