<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
?<link rel="stylesheet" href="css/viewer.css">
?<link rel="stylesheet" href="css/main.css">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
??<!-- <script src="https://fengyuanchen.github.io/js/common.js"></script>-->
?<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.bundle.min.js"></script>
?<script src="js/viewer.js"></script>
?<script src="js/main.js"></script>
</head>
<body>
???<div class="docs-pictures clearfix">
???????<img src="~/Files/KeepImg/333.png" alt="Cuo Na Lake"> ?????
???</div>
</body>
</html>
https://www.cnblogs.com/yi0921/p/7080284.html
JS图片放大2
原文地址：https://www.cnblogs.com/Ly426/p/9768637.html