varsql=$"select Count(id) id,sum(amount_sales*seller_order_exchange_rate) amount_sales,sum(profit_total) profit_total,sum(profit_total)/sum(amount_sales*seller_order_exchange_rate) as profit_rate from dc_base_oms_order where create_time>='{start.ToString("yyyy-MM-dd HH:mm:ss")}' and create_time<'{end.ToString("yyyy-MM-dd HH:mm:ss")}'";