Method buy

quantdigger/kernel/engine/strategy.py:204–222

开仓。 :param str/int direction: 下单方向。多头 - 'long' / 1 ；空头 - 'short' / 2 :param float price: 价格。 :param int quantity: 数量。 :param str/int price_type: 下单价格类型。限价单 - 'lmt' / 1；市价单 - 'mkt' / 2

(self, direction, price, quantity, price_type='LMT', contract=None)

        self._orders = []

    def buy(self, direction, price, quantity, price_type='LMT', contract=None):
        """ 开仓。
        
           :param str/int direction: 下单方向。多头 - 'long' / 1 ；空头 - 'short'  / 2
           :param float price: 价格。
           :param int quantity: 数量。
           :param str/int price_type: 下单价格类型。限价单 - 'lmt' / 1；市价单 - 'mkt' / 2
        """
        contract = None
        con = Contract(contract) if contract else self._main_contract
        self._orders.append(Order(
                self.datetime,
                con,
                PriceType.arg_to_type(price_type),
                TradeSide.KAI,
                Direction.arg_to_type(direction),
                float(price),
                quantity
        ))

    def sell(self, direction, price, quantity, price_type='MKT', contract=None):
        """ 平仓。