Because when I write in a machine, PC window is an object class, so the data is a kind of multiple attribute, all function is a class of methods, all can't use qthread to derived classes. The run () to implement multithreaded, final purpose is to solve PC operation interface did not respond to caton problems, could you tell me how to solve the? Is said to be qtconcurrent can generate the function directly multithreading, could you tell me how to achieve?