导入

@@ -11,6 +11,7 @@ use PhpOffice\PhpSpreadsheet\Reader\Xls;
 use PhpOffice\PhpSpreadsheet\Reader\Csv;
 use think\exception\PDOException;
 use app\admin\library\Auth;
+use PhpOffice\PhpSpreadsheet\Cell\DataType;
 /**
  * 免费预约管理
  *