首先导入ztree
ztree是建立在jquery的基础上的
<link href="/go.html?url=js/zTree_v3-master/css/zTreeStyle/zTreeStyle.css" type="text/css" rel="stylesheet">
<script src="js/jquery.min.js" type="application/javascript"></script>
<script src="js/zTree_v3-master/js/jquery.ztree.all.min.js"></script>
<link href="/go.html
