docs: def Cmd_display(self):
      """ For Task overall stock display
          一行顯示資訊，用於終端機顯示樣式。
      """
      re = "%(stock_no)s %(stock_name)s %(stock_date)s %(stock_price)s %(stock_range)s %(stock_range_per).2f%% %(RABC)s %(stock_vol)s" % {
          'stock_name': unicode(self.stock_name),
          'stock_no': unicode(self.stock_no),
          'stock_date': unicode(self.data_date[-1]),
          'stock_price': unicode(self.raw_data[-1]),
          'stock_range': unicode(self.stock_range[-1]),
          'stock_range_per': self.range_per,
          'stock_vol': self.stock_vol[-1]/1000,
          'RABC': self.RABC
        }
      return re