用qt写一个lcdnumber可以输出数据的代码
时间: 2024-05-06 12:21:03 浏览: 11
Sure, here's an example code snippet for a simple Qt application with an LCD number widget:
```
#include <QtWidgets>
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QWidget *window = new QWidget;
QLCDNumber *lcd = new QLCDNumber();
lcd->setStyleSheet("QLCDNumber {color: black; background-color: white;}");
lcd->setSegmentStyle(QLCDNumber::Filled);
lcd->display(42);
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(lcd);
window->setLayout(layout);
window->show();
return a.exec();
}
```
In this example, we create a new `QLCDNumber` widget and set its display to 42. The widget is then added to a vertical layout, which is set as the main layout for a new `QWidget`. Finally, we show the widget and start the Qt application event loop.