多线程设计解决方案

class thread : public QThread{    void run();}thread::run(){    QFile f("test");    QTextStream textstream( &f );     textstream<<"0. Enter thread->run function!"<<'\n';     //process data1;    textstream<<"1. process data1"<<'\n';    ........    //process data2;    textstream<<"2. process data2"<<'\n';    ........      //process data3;    textstream<<"3. process data3"<<'\n';    ........      f.close();}class a : public QWidget{   public slots:          void process();}void a::process(){   QFile f("test");   QTextStream textstream( &f );    textstream<<"1. ready to start the thread!";    thread* t = new thread();   t->start();   textstream<<"2. start the thread!";   f.close();}