Ext Treepanel 得到选中的节点

var tree = Ext.getCmp('getSharedFromOthersTree');var sm = tree.getSelectionModel();var node = sm.getSelectedNode() ;alert(node.attributes.text);sm.clearSelections() ;//清空选择区，并返回选择区中的节点//参考 Ext.tree.DefaultSelectionModel 

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