MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->label->setText("");
num=0;
QTimer *time=new QTimer(this);
connect(time,SIGNAL(timeout()),this,SLOT(UpdateText()));
time->start(100);
}
void MainWindow::UpdateText()
{
QDate date = QDate::currentDate();
QTime time=QTime::currentTime();
QString str =date.toString("yyyy-MM-dd ")+ time.toString("hh:mm:ss");
ui->label->setText(str);
}