file thread.h：

file thread.h:

class   Thread : public QThread {
    Q_OBJECT
public:
    Thread();
protected:
    void    run();
}

文件thread.cpp：

file thread.cpp:

Thread::Thread() {}
void    Thread::run() {
    // do what ever you want with QTcpSocket
}

在main.cpp或任何：

in main.cpp or whatever:

Thread *myThread = new Thread;
connect(myThread, SIGNAL(finished()), this, SLOT(on_myThread_finished()));
myThread->start();