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new Ext.tree.TreePanel({
         id : ‘west-panel’,
         region : ‘west’,
         title : ‘事务管理’,
         iconCls : ‘treeIcon’,
         split : true,
         width : 200,
         minSize : 175,
         maxSize : 400,
         collapsible : true,
         margins : ’0 0 5 5′,
         loader : new Ext.tree.TreeLoader({ url :
         ’treedata.html’, baseParams : { className :
         ’menuTree’ } }),
          
         rootVisible : true,
         lines : true,
         autoScroll : true,
         root : new Ext.tree.AsyncTreeNode({
            text : ‘Manage’,
            expanded : true,
            children : [{
               text : 'Menu Option 1',
               leaf : true
              }, {
               text : 'Menu Option 2',
               leaf : true
              }, {
               text : 'Menu Option 3',
               leaf : true
              }]

           })
        })