ztree的官方网站：http://www.treejs.cn
码云： https://gitee.com/zTree/zTree_v3
如图所示：
第一步：基本结构
<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE> ZTREE DEMO - Simple Data</TITLE>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="http://www.treejs.cn/v3/css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="http://www.treejs.cn/v3/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="http://www.treejs.cn/v3/js/jquery.ztree.core.js"></script>
</HEAD>
<BODY>
<h1>最简单的树 -- 简单 JSON 数据</h1>
<div class="zTreeDemoBackground">
<ul id="treeDemo" class="ztree"></ul>
</div>
</BODY>
</HTML>
第二步：增加JSON数据
<SCRIPT type="text/javascript">
var setting = {
data: {
simpleData: {
enable: true
}
}
};
var zNodes =[
{ id:1, pId:0, name:"父节点1 - 展开", open:true},
{ id:11, pId:1, name:"父节点11 - 折叠"},
{ id:111, pId:11, name:"叶子节点111"},
{ id:112, pId:11, name:"叶子节点112"},
{ id:113, pId:11, name:"叶子节点113"},
{ id:114, pId:11, name:"叶子节点114"},
{ id:12, pId:1, name:"父节点12 - 折叠"},
{ id:121, pId:12, name:"叶子节点121"},
{ id:122, pId:12, name:"叶子节点122"},
{ id:123, pId:12, name:"叶子节点123"},
{ id:124, pId:12, name:"叶子节点124"},
{ id:13, pId:1, name:"父节点13 - 没有子节点", isParent:true},
{ id:2, pId:0, name:"父节点2 - 折叠"},
{ id:21, pId:2, name:"父节点21 - 展开", open:true},
{ id:211, pId:21, name:"叶子节点211"},
{ id:212, pId:21, name:"叶子节点212"},
{ id:213, pId:21, name:"叶子节点213"},
{ id:214, pId:21, name:"叶子节点214"},
{ id:22, pId:2, name:"父节点22 - 折叠"},
{ id:221, pId:22, name:"叶子节点221"},
{ id:222, pId:22, name:"叶子节点222"},
{ id:223, pId:22, name:"叶子节点223"},
{ id:224, pId:22, name:"叶子节点224"},
{ id:23, pId:2, name:"父节点23 - 折叠"},
{ id:231, pId:23, name:"叶子节点231"},
{ id:232, pId:23, name:"叶子节点232"},
{ id:233, pId:23, name:"叶子节点233"},
{ id:234, pId:23, name:"叶子节点234"},
{ id:3, pId:0, name:"父节点3 - 没有子节点", isParent:true}
];
</SCRIPT>
第三步：ztree的初始化
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
});