Widget _horizontalScrollTable(BuildContext context) {
    return TDTable(
      columns: [
        TDTableCol(title: '标题', colKey: 'title1', width: 160),
        TDTableCol(title: '标题', colKey: 'title2', width: 160),
        TDTableCol(title: '标题', colKey: 'title3', width: 160),
      ],
      data: _getData2(),
    );
  }