VC++写的一个串口通信API编程实例,为了读取输入的串口数据,采用轮询方式检测串口,具体的做法是设置一个定时器,每隔一段时间就访问一次串口.请在VC++6.0及以上环境下编译-VC write a serial communication API programming examples, in order to read the serial data input, Polling testing techniques used Serial, specific practices are