为什么引入了jq3.1.1还是报错
<link rel="stylesheet" type="text/css" href="bootstrap-3.3.7-dist/css/bootstrap.min.css"/>
<script src="bootstrap-3.3.7-dist/js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
<script src="https://code.jquery.com/jquery-3.1.1.min.js" type="text/javascript" charset="utf-8"></script>