最简单的串口通讯程序，让你很快上手！配置串口、波特率、校验位、数据位和停止位，打开串口后可以进行通讯，还能让你学会线程代码的编写。-The most simple serial communication program that lets you get started quickly! Configure the serial port, baud rate, parity, data bits and stop bits after, you can open the port for c