对未成交的调仓进行伪撤单
        :param entrust_no:
        :return:

def cancel_entrust(self, entrust_no):
        """
        对未成交的调仓进行伪撤单
        :param entrust_no:
        :return:
        """
        xq_entrust_list = self._get_xq_history()
        is_have = False
        for xq_entrusts in xq_entrust_list:
            status = xq_entrusts["status"]  # 调仓状态
            for entrust in xq_entrusts["rebalancing_histories"]:
                if entrust["id"] == entrust_no and status == "pending":
                    is_have = True
                    buy_or_sell = (
                        "buy"
                        if entrust["target_weight"] < entrust["weight"]
                        else "sell"
                    )
                    if (
                        entrust["target_weight"] == 0
                        and entrust["weight"] == 0
                    ):
                        raise exceptions.TradeError(u"移除的股票操作无法撤销,建议重新买入")
                    balance = self.get_balance()[0]
                    volume = (
                        abs(entrust["target_weight"] - entrust["weight"])
                        * balance["asset_balance"]
                        / 100
                    )
                    r = self._trade(
                        security=entrust["stock_symbol"],
                        volume=volume,
                        entrust_bs=buy_or_sell,
                    )
                    if len(r) > 0 and "error_info" in r[0]:
                        raise exceptions.TradeError(
                            u"撤销失败!%s" % ("error_info" in r[0])
                        )
        if not is_have:
            raise exceptions.TradeError(u"撤销对象已失效")
        return True