code: def on_bar_min1(self, tiny_quote):
          
          """收盘前五分钟，调用"""
          data = tiny_quote
          symbol = data.symbol
          price = data.open
          #print(price)
  
          now = datetime.datetime.now()
          work_time = now.replace(hour=15, minute=55, second=0)
  
          if now >= work_time:
              ma_20 = self.get_sma(20, symbol)
              ma_60 = self.get_sma(60, symbol)
              if ma_20 >= ma_60 and self.flag==0:
                  #金叉买入
                  self.do_trade(symbol, price, "buy")
                  self.flag = 1
              elif ma_20 < ma_60 and self.flag==1:
                  #死叉卖出
                  self.do_trade(symbol, price, "sell")
                  self.flag = 0
docs: 每一分钟触发一次回调