一：函数

1：页面中

tree.add(id,pid,name,url,title,target,icon,iconOpen,open);

参数说明：

id         ：节点自身的id

pid       ：节点的父节点的id

name    ：节点显示在页面上的名称

url        ：节点的链接地址

title      ：鼠标放在节点上所出现的提示信息

target   ：节点链接所打开的目标frame（如框架目标mainFrame或是_blank,_self之类）

icon      ：节点关闭时的显示图片的路径

iconOpen：节点打开时的显示图片的路径

open    ：布尔型，节点是否打开（默认为false）

注：open项：顶级节点一般采用true，即pid是－1的节点

2：dtree.js文件中

约87－113行是一些默认图片的路径，注意要指对。

二：页面中的书写

1：默认值的书写规则（从左至右，依次省略）

即 tree.add(id,pid,name,url);后面5个参数可以省略

2：有间隔时的默认值（如存在第6个参数，但第5个参数想用默认值）

即 tree.add(id,pid,name,url,"",target);必须这样写

其他 tree.add(id,pid,name,url,"","","","",true);

3：样式表

（1）：可以将dtree.css中的样式附加到你的应用中的主css中，如a.css

（2）：也可以同时引用dtree.css与a.css两个文件，但前提条件是两个css文件中不能有重复的样式

<link href="/jingjindatabase/pub/css/a.css" rel="stylesheet" type="text/css" />
<link href="/jingjindatabase/pub/css/dtree.css" rel="stylesheet" type="text/css" />

4：页面代码书写的位置是：一般写在表格的td之中

<script type="text/javascript" src="/myMobanGis/pub/js/dtree.js"></script>
<script type="text/javascript">
tree = new dTree('tree');
tree.add("1","-1","京津","","","","","",true);
tree.add("11","1","A","","","","","",true);
 tree.add("110","11","A-1","content.jsp?moduleName=XXX","","mainFrame");
 tree.add("111","11","A-2","javascript:void(0)","","链接在哪里显示");
 tree.add("112","11","A-3","javascript:void(0)","","mainFrame");
 tree.add("113","11","A-4","/.jsp","","mainFrame");
 tree.add("114","11","A-5","/.jsp","","mainFrame");
 tree.add("115","11","A-6","/.jsp","","mainFrame");
 
tree.add("12","1","B","","","","","",true);
 tree.add("121","12","B-1","javascript:调用本页内的js函数","","mainFrame");
 tree.add("122","12","B-2");

tree.add("13","1","C","","","","","",true);
 tree.add("131","13","C-1","javascript:void(0)","","mainFrame");
 tree.add("132","13","C-2","javascript:void(0)","","mainFrame");
 tree.add("133","13","C-3","javascript:void(0)","","mainFrame");

tree.add("14","1","D","","","","","",true);
 tree.add("141","14","D-1","javascript:void(0)","","mainFrame");
document.write(tree);
</script>
说明：这是静态的代码，动态的可用循环加入。 

三：css文件的注解

1:dtree.css

.dtree {//定义目录树节点的字体，字号，颜色
 font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;
 font-size: 12px;
 color: #006600;
 white-space: nowrap;
}
.dtree img {//定义选用节点图标的样式，位置
 border: 0px;
 vertical-align: middle;
}
.dtree a {//
 color: #006600;
 text-decoration: none;
}
.dtree a.node, .dtree a.nodeSel {
 white-space: nowrap;
 padding: 0px 0px 0px 0px;
}
.dtree a.node:hover, .dtree a.nodeSel:hover {
 color: #006600;
 text-decoration: none;
}
.dtree a.nodeSel {
 background-color: #c0d2ec;
}
.dtree .clip {
 overflow: hidden;
}

a = new dTree('a');

a.config.useStatusText=true;

a.config.closeSameLevel=true;

a.config.useCookies=false;

a.add(0,-1,'Tree example','javascript: void(0);');

a.add(1, 0,'Node 1','javascript:void(0);');

a.add(2, 1,'Node 2','javascript:void(0);');

a.add(3, 1,'Node 3','javascript:void(0);');

a.add(4, 0,'Node 4','javascript:void(0);');

a.add(5, 4,'Node 5','javascript:void(0);');

a.add(6, 4,'Node 6','javascript:void(0);');

a.add(7, 2,'Node 7','javascript:void(0);');

a.add(8, 6,'Node 8','javascript:void(0);');

a.add(9, 1,'Node 9','javascript:void(0);');

a.add(10, 2,'Node 10','javascript:void(0);');

a.add(11, 8,'Node 11','javascript:void(0);');

a.add(12, 2,'Node 12','javascript:void(0);');

a.add(13, 9,'Node 13','javascript:void(0);');

a.add(14, 4,'Node 14','javascript:void(0);');

a.add(15, 2,'Node 15','javascript:void(0);');

a.add(16, 1,'Node 16','javascript:void(0);');

a.add(17, 4,'Node 17','javascript:void(0);');

a.add(18, 6,'Node 18','javascript:void(0);');

a.add(19, 7,'Node 19','javascript:void(0);');

document.write(a);