推荐订阅源

 api学习地址：

https://treejs.cn/v3/api.php

<script type="text/javascript" src="js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="js/jquery.ztree.core-3.5.js"></script>
<script type="text/javascript" src="js/jquery.ztree.excheck-3.5.js"></script>
<script type="text/javascript" src="js/jquery.ztree.exedit-3.5.js"></script>
<link rel="stylesheet" href="css/zTreeStyle/zTreeStyle.css" type="text/css">

引入的js和css

jquery.ztree.core-3.5.js：zTree核心包
jquery.ztree.excheck-3.5.js：复选框功能包
jquery.ztree.exedit-3.5.js：编辑功能包
zTree核心包是必须引入的

    var zTreeObj;
    var setting = {};
    var zNodes = [{
        name: "test1",
        open: true,
        children: [{
            name: "test1_1"
        }, {
            name: "test1_2"
        }]
    }, {
        name: "test2",
        open: true,
        children: [{
            name: "test2_1"
        }, {
            name: "test2_2"
        }]
    }];
    $(document).ready(function() {
        zTreeObj = $.fn.zTree.init($("#treeDemo"), setting, zNodes);
    });

js

<div id="treeDemo"  class="ztree"></div> 
或者
<div>
   <ul id="treeDemo" class="ztree"></ul>
</div> 

html容器声明

效果图：