code: def QA_util_make_hour_index(day, type_='1h'):
      
  
      if QA_util_if_trade(day) is True:
          return pd.date_range(
              str(day) + ' 09:30:00',
              str(day) + ' 11:30:00',
              freq=type_,
              closed='right'
          ).append(
              pd.date_range(
                  str(day) + ' 13:00:00',
                  str(day) + ' 15:00:00',
                  freq=type_,
                  closed='right'
              )
          )
      else:
          return pd.DataFrame(['No trade'])
docs: 创建股票的小时线的index
  
      Arguments:
          day {[type]} -- [description]
  
      Returns:
          [type] -- [description]