QT——LCDNumber

LCDNumber Control use

Insert LCDNumber Control

Modify the object name

ui->lcdTime->setDigitCount(23);
// Set display byte length 
ui->lcdTime->setSegmentStyle(QLCDNumber::Flat);
// Set the display style 
QDateTime realtime=QDateTime::fromString(year+"-"+month+"-"+day+"T"+hour+":"+min+":"+sec+":"+m_sec,"yyyy-MM-ddThh:mm:ss:zzz"); 
ui->lcdTime->display(realtime.toString("yyyy MM dd hh:mm:ss.zzz"));
// According to the content 

Set the color

Running results