1) linux version:

1. create cpp file, ex: test.cpp

  #include <QtGui>

  int main(int argc, char *argv[])

  {

      QApplication app(argc, argv);

      QLabel *label = new QLabel("Linux is wonderful", 0);

      app.setMainWidget(label);   

      label->show();

     return app.exec();

  }

2. use qmake:

qmake -project

 

3. use make

make

 

4. run programe

./test