pc-system/timeupdatethread.cpp

#include "timeupdatethread.h"
#include <QTimer>

TimeUpdateThread::TimeUpdateThread(QObject *parent) : QThread(parent)
{
}

void TimeUpdateThread::run()
{
    QTimer timer;
    connect(&timer, &QTimer::timeout, [this]() {
        QDateTime currentDateTime = QDateTime::currentDateTime();
        QString currentTimeString = currentDateTime.toString("yyyy-MM-dd hh:mm:ss");
        emit timeUpdated(currentTimeString);
    });
    timer.start(1000);

    // 初始化时立即更新一次时间
    QDateTime currentDateTime = QDateTime::currentDateTime();
    QString currentTimeString = currentDateTime.toString("yyyy-MM-dd hh:mm:ss");
    emit timeUpdated(currentTimeString);

    exec(); // 启动线程的事件循环
}