Extjs textarea内容

Ext.onReady(function(){
	Ext.QuickTips.init();
	var testForm = new Ext.form.Panel({
		title:‘Ext.form.field.TextArea示例‘,
		bodyStyle:‘padding:5 5 5 5‘,
		frame:true,
		height:150,
		width:250,
		renderTo:‘form‘,
		items:[{
			xtype:‘textarea‘,
			fieldLabel:‘提示‘,
			id:‘memo‘,
			labelSeparator:‘:‘,
			labelWidth:60,
			width:200
		}],
		buttons:[{
			text:‘确定‘,
			handler:showValue
		}]
	});
	//获得form组件中的内容
	function showValue(){
		var meo = testForm.getForm().findField("memo");
		alert(meo.getValue());
	}
});