ext怎么在panel里面增加一棵树?Ext.onReady(function(){newExt.Panel({renderTo:quot;helloquot;,title:quot;quot;,//面板头部headerwidth:300,height:500,border:false,layout:quot;borderquot;,items:[{region:quot;southquot;,h
<p>问题：ext怎么在panel里面增加一棵树?Ext.onReady(function(){newExt.Panel({renderTo:quot;helloquot;,title:quot;quot;,//面板头部headerwidth:300,height:500,border:false,layout:quot;borderquot;,items:[{region:quot;southquot;,height:400,width:100,id:#39;panel_hello#39;,title:quot;t1quot;,b<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">黄珍生的回答：<div class="content-b">网友采纳 Ext.onReady(function(){vartree=newExt.tree.TreePanel({title:"test",width:300,height:450,useArrows:true,//是否使用箭头样式autoScroll:true,//滚动条animate:true,//展开,收缩动画rootVisible:...
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