用QT制作的倒计时软件

一、pro代码

RC_ICONS =countdown.ico

二、mainwindow.cpp代码

#include "mainwindow.h"
#include "ui_mainwindow.h"#include <QDateTime>
#include <QMessageBox>
#include <QSettings>MainWindow::MainWindow(QWidget *parent): QMainWindow(parent), ui(new Ui::MainWindow)
{ui->setupUi(this);setWindowTitle("倒计时");setWindowIcon(QIcon("countdown.ico"));InitDateInfor();
}MainWindow::~MainWindow()
{delete ui;
}void MainWindow::InitDateInfor()
{// 读取INI文件中的日期QSettings settings("base.ini", QSettings::IniFormat);int year = settings.value("date/year").toInt();int month = settings.value("date/month").toInt();int day = settings.value("date/day").toInt();QDate targetDate(year, month, day);QDate currentDate = QDate::currentDate();// 计算剩余天数int daysLeft = targetDate.daysTo(currentDate);// 构造日期字符串QString date_str = QString("%1-%2-%3").arg(year).arg(month, 2, 10, QChar('0')).arg(day, 2, 10, QChar('0'));// 读取INI文件中的消息QString message1 = settings.value("message/message1").toString();QString last_message1=message1+QString("   ")+date_str;QString message2 = settings.value("message/message2").toString();QString last_message2 = QString("%1%4 天").arg(message2).arg(-daysLeft);ui->label_nowTime->setText(last_message1);ui->label_lastTime->setText(last_message2);}

三、base.ini文件

[date]
year=2025
month=2
day=5
[message]
message1="软件正式上线"
message2="剩余天数为："