extjs 单选按钮横向布局
{
    fieldLabel:'性   别',
                defaultType:'radio',
                layout:'table',
                isFormField:true,
                items:[{
                columnWidth:.50, 
                checked:true,
                name:'sex',
                boxLabel:'男',
                inputValue:'M'
                },{
                columnWidth:.5,
                name:'sex',
                boxLabel:'女',
                inputValue:'F'
                }]
      }