如何动态的给panel的items动态的添加数据？急急急

var sysPanel = Ext.create('Ext.panel.Panel',{
title:nodeText,
layout: 'card',
//iconCls: "icon-chart",
tbar:[{

text:'导出',
xtype: 'button',
handler:function (){

var url = "sysInfor.do?method=ExportExcel&&lastdate="+date;

        window.location.href=url;

        }  
       } 
    ],
    defaults: {
         border: false
    },
    bbar: [{
            id: 'move-prev',
            text: 'Back',
            handler: function (btn) {
                        navigate(btn.up("panel"), "prev");
                     },
            disabled: true
           },
            '->', 
           {
            id: 'move-next',
            text: 'Next',
            handler: function (btn) {
               navigate(btn.up("panel"), "next");
                    }
           }
 ],
 items:[]
});

调用add方法添加就行了

 sysPanel.add(Ext.create('Ext.panel.Panel', { title: 'add', html: '动态加的panel' }));
sysPanel.render(document.body);

最后要调用一下组件的doLayout() 重新计算一下显示布局