此程序通过C和c++的混合编程实现了Qt界面应用程序与底层驱动程序的链接问题，驱动程序可自行编写，这里就不加入了，只是一个简单的LED驱动。-This program through the C and c++ mixed programming interface of Qt applications and the underlying driver, the link problem, the drivers are free to write here is not joined, ju