VC6开发串口通信类，通过回调函数实现串口数据接收，特别是对接收部分做了处理，可设置接收间隔时间，即只有在一定时间内（默认50毫秒）连续接收的码才能算作一个码，否则将会被识别为2个码-VC6 development of serial communications, serial data through the callback function to receive, especially in the receiving department made a deal can be set