QT 实现SpinBox与Slider相互控制

#include<QtGui>

#include<QApplication>

#include<QHBoxLayout>

#include<QSlider>

#include<QSpinBox>

int main(int argc, char* argv[])

{

    QApplication app(argc, argv);

    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("GB2312"));

    QWidget* pWin = new QWidget;

    pWin->setWindowTitle("输入你的年龄：");

    QSpinBox* pSpin = new QSpinBox;

    QSlider* pSlider = new QSlider(Qt::Horizontal);

    pSpin->setRange(0, 130);

    pSlider->setRange(0, 130);

    QObject::connect(pSpin, SIGNAL(valueChanged(int)), pSlider, SLOT(setValue(int)));

    QObject::connect(pSlider, SIGNAL(valueChanged(int)), pSpin, SLOT(setValue(int)));

    pSpin->setValue(35);

    QHBoxLayout* pLayOut = new QHBoxLayout;

    pLayOut->addWidget(pSpin);

    pLayOut->addWidget(pSlider);

    pWin->setLayout(pLayOut);

    pWin->show();

    return app.exec();

}