self.buy_break = self.buy_setup + self.break_coef * (self.sell_setup - self.buy_setup)  # 突破买入价
            self.sell_break = self.sell_setup - self.break_coef * (self.sell_setup - self.buy_setup)  # 突破卖出价

这里公式都是错的, 回测结果有意义?