Widget _operationIconTable(BuildContext context) {
    return TDTable(
      columns: [
        TDTableCol(title: '标题', colKey: 'title1', ellipsis: true),
        TDTableCol(title: '标题', colKey: 'title2'),
        TDTableCol(title: '标题', colKey: 'title3'),
        TDTableCol(
          title: '标题',
          colKey: 'title4',
          cellBuilder: (BuildContext context) {
            return Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                Icon(TDIcons.upload, color: TDTheme.of(context).brandNormalColor, size: 16),
                Icon(TDIcons.delete, color: TDTheme.of(context).brandNormalColor, size: 16),
              ],
            );
          },
        )
      ],
      data: _getData(9),
    );
  }