#include <QApplication> 
#include <QHBoxLayout> 
#include <QSlider> 
#include <QSpinBox> 
#include <QLabel> 
 
int main(int argc, char *argv[]) 
{    
    QApplication app(argc, argv); 
 
    QWidget *window = new QWidget; 
    window->setWindowTitle("Enter Your Age");//标题显示:输入你的年龄 
 
    QSpinBox *spinBox = new QSpinBox; 
    QSlider *slider = new QSlider(Qt::Horizontal);//滑块组件 
    spinBox->setRange(0, 130);//设置各自的取值范围 
    slider->setRange(0, 130); 
 
    //滑块和Spin组件的值的变化都会对应的改变 
    QObject::connect(spinBox, SIGNAL(valueChanged(int)), 
                                     slider, SLOT(setValue(int))); 
    QObject::connect(slider, SIGNAL(valueChanged(int)), 
                                     spinBox, SLOT(setValue(int))); 
                                        
    spinBox->setValue(35);//注意这里的设置也会影响slider 
 
    QHBoxLayout *layout = new QHBoxLayout; 
    layout->addWidget(spinBox); 
    layout->addWidget(slider); 
     
    QLabel* label=new QLabel("your age:"); 
     
    QVBoxLayout* mainLayout=new QVBoxLayout; 
    mainLayout->addWidget(label); 
    mainLayout->addLayout(layout); 
     
    window->setLayout(mainLayout); 
 
    window->resize(300,50); 
    window->show(); 
 
    return app.exec(); 
}