一个扫描枪串口通讯程序，包括串口通讯包的线程调用，扫描数据的事件出发，端口的文件读取方法。,A scanning gun serial communication program, including the serial communication package called the thread, scan data events, the document read-port method.

程序是有QT编写的收钞模块的dll库，通过com编程实现串口通讯-Program is written with QT chao module DLL library, through the com programming to realize serial communication