花了3天时间写的串口调试工具，基本功能。 字符或16进制收发，本人是搞电子的，抽空写写上位机，可能对新手有点帮助。-Spent 3 days to write serial port debug tool, basic function. Characters or hexadecimal transceiver, I was engaged in electronic, computer, may take time to write a little help novice.