自动将记事本中的内容逐行发送到串口中，方便串口设备调试用。通过虚拟串口还可以模拟出串口设备的数据，方便测试串口数据。-Notepad automatically sent to the serial port of the progressive content, making it easy for debugging serial devices. Virtual serial port can also simulate serial data devices, facilitate the testing serial data.