# 读取成交明细。通过订单id获取了系统id,再利用系统id 获取到对应的成交明细
#只有系统编号才是唯一的,订单id 在成交和委托列表中并不一致
def get_trader(orderid):
order = get_orders_id(orderid)
systemid = order.system_id
traders = get_traders(order.order_book_id)
if traders is None:
return None
trade = [od for od in traders if od.system_id==systemid]
if len(trade)==0:
return None
return trade[-1]