docs: def _data(self, data):
          """!
          \~english
          Send data to ssd1306, DC pin need set to HIGH
          @param data: sent to display chip of data. it can be an byte or array of bytes
  
          \~chinese
          发送数据给 SSD1306, DC 需要设定为高电平 HIGH
          @param data: 送到显示芯片的数据。 可以是一个字节或字节数组
          """
          if self._spi == None: raise "Do not setting SPI"
          GPIO.output( self._spi_dc, 1 )
          self._spi.writebytes( data )