非常实用的串口通信程序 并且在中间使用了托盘技术 (站长,源程序个数怎么计算啊,其实这里面含有两个源程序,一个是串口通信,一个是托盘程序 )-very practical serial communication procedures and the use of in the middle of the tray technology (head source Number how calculated ah, actually it contains two sources, one ser