<th data-options="field: 'picUrl', title: '图片',width: 200, formatter: function(value, row, index) {
return '<img src=\'row.picUrl \'/>'
}"></th>这样拼接会报错！错误提示：row.picUrl:1 GET http://localhost/bonade-localLife/banner/row.picUrl 404 (Not Found)