code: def B1(self):
      ''' 量大收紅 '''
      return self.a.stock_vol[-1] > self.a.stock_vol[-2] and self.a.PUPTf B1(self):
      ''' 量大收紅 '''
      return self.a.stock_vol[-1] > self.a.stock_vol[-2] and self.a.PUPTY
docs: 量大收紅