1、234行：（修改最低价计算，需往前回溯一根bar）
if len(self.am_1min.low_array) >= self.length:
            self.lowest_price = self.am_1min.low_array[-self.length-1:-1].min()
            self.highest_price = self.am_1min.high_array[-self.length-1:-1].max()

2、288行：（多空背离条件互斥，加约束避免同时出现多空背离条件）
if (self.signal_active and self.k_signal_active):
                    self.signal_active = False
                    self.k_signal_active = False


