varsql="select Count(0) from RB_ReturnMoney_Batch a where a.GroupId=@gid and DATE_FORMAT(a.CreateDate,'%Y-%m')=@month and a.CommissionType=@type";
varsql=$@"select Count(0) from RB_ReturnMoney_Batch a where a.GroupId={groupId} and DATE_FORMAT(a.CreateDate,'%Y-%m')='{month}' and a.CommissionType={type}";