code: def _OnRtnNotice(self, pTradingNoticeInfo: CThostFtdcTradingNoticeInfoField):
          '''交易提醒'''
          msg = pTradingNoticeInfo.getFieldContent()
          if len(msg) > 0:
              threading.Thread(target=self.OnRtnNotice, args=(self, pTradingNoticeInfo.getSendTime(), msg)).start(f _OnRtnNotice(self, pTradingNoticeInfo: CThostFtdcTradingNoticeInfoField):
          '''交易提醒'''
          msg = pTradingNoticeInfo.getFieldContent()
          if len(msg) > 0:
              threading.Thread(target=self.OnRtnNotice, args=(self, pTradingNoticeInfo.getSendTime(), msg)).start()
docs: 交易提醒