QT信号和槽

signals:
    void my_jump();//登录跳转信号

 

public slots:
    void my_jump_slot();//跳转槽

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    Form f;
    QObject::connect(&w,&Widget::my_jump,&f,&Form::my_jump_slot);//跳转链接
    return a.exec();
}