qt qtimer控件用法

2025-03-15 07:34:16
推荐回答(1个)
回答1:

Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget)
{
ui->setupUi(this);
QTimer *timer_sys = new QTimer(this);
QObject::connect(timer_sys, SIGNAL(timeout()), this, SLOT(timer_sysUpdate()));
x = 100;
timer_sys->start(1000);
}

void Widget::timer_sysUpdate()
{
x--;
}