Extjs radiogroup

{name:'testRadioGroup', xtype: 'radiogroup',fieldLabel: '',labelWidth: 5, 
	items: [
		{boxLabel: '苹果', name: 'fruit', inputValue: "苹果", id:'chooseFruit'},
		{boxLabel: '香蕉', name: 'fruit', inputValue: "香蕉"}, 
		{boxLabel: '桃子', name: 'fruit', inputValue: "桃子", checked: true}
]}

页面显示

控制台显示：

注：第一项要指定id属性！