我照网上的例子做个tree但就是实现不了请大哥帮忙看看
<br> Ext.onReady(function(){<br> var root=new Ext.tree.TreeNode({<br> id:'root',<br> text:"我是树根"<br> });</p> <pre><code> var c1=new Ext.tree.TreeNode({ id:'c1', text:'我是大儿子' }); var c2=new Ext.tree.TreeNode({ id:'c2', text:'我是小儿子' }); var c22=new Ext.tree.TreeNode({ id:'c22', text:'我是大孙子' }); root.appendChild(c1); root.appendChild(c2); c1.appendChild(c22); var tree=new Ext.tree.TreePanel({ renderTo:"show", root:root, animate:true, enableDD:false, rootVisible:true }); </code></pre> <p>});</p> <p>