在Qt中,有时候我们想要联合QSpinBox 和 QSlider,使得移动滑块,QSpinBox中的数据会变化,或者我们在QSpinBox中输入一个数值,响应的滑块也会变化,如下图所示:

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" alt="" width="207" height="83" />

那么我们可以用如下的代码来实现:

ui.setupUi(this);
ui.spinBox->setRange(, );
ui.slider->setRange(, );
connect(ui.spinBox,SIGNAL(valueChanged(int)), ui.slider,SLOT(setValue(int)));
connect(ui.slider,SIGNAL(valueChanged(int)), ui.spinBox,SLOT(setValue(int)));

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