自己写的完整串口通信类，有实例程序，类中有详细的中文注释，多线程监听串口数据，搜索电脑上所有串口设备，对串口设备的插拔进行监听-Complete serial communication class to write their own, there are instances of the program, the class detailed notes in Chinese, all serial devices multithreaded monitoring serial data,