#include "mainwindow.h"


 #include "ui_mainwindow.h"


 #include <QDateTime>


 #include <QTimer>


 


 MainWindow::MainWindow(QWidget *parent) :


     QMainWindow(parent),


     ui(new Ui::MainWindow)


 {


     ui->setupUi(this);


 


     QTimer *timer = new QTimer(this);


     displayTime();


     connect(timer, SIGNAL(timeout()), this, SLOT(displayTime()));


     timer->start(1000);


 


 }


 


 void MainWindow::displayTime()


 {


     QDateTime dt;


     QTime time;


     QDate date;


 


     dt.setTime(time.currentTime());


     dt.setDate(date.currentDate());


 


     QString currentDate = dt.toString("yyyy:MM:dd:hh:mm:ss");


     ui->beiJingLabel->setText(currentDate);


 }