Question

QSpinBox有啥用

Answer 1

1、当QSpinBox的值为最小值时, 显示特殊的字符

QSpinBox *zoomSpinBox = new QSpinBox;
zoomSpinBox->setRange(0, 1000);
zoomSpinBox->setSingleStep(10);
zoomSpinBox->setSpecialValueText(tr("Automatic"));
zoomSpinBox->setValue(100);

2、显示前缀/后缀

zoomSpinBox->setSuffix("%");
zoomSpinBox->setPrefix("$"));