Qt笔记(二十)之实现窗口定时关闭 源码

#include "TimerDialog.h" #include "ui_TimerDialog.h" TimerDialog::TimerDialog(int ms,QWidget *parent) : QDialog(parent), ui(new Ui::TimerDialog) { ui->setupUi(this); timer = new QTimer(); connect(timer,SIGNAL(timeout()),this,SLOT(onTimeout())); timer->start(ms); qDebug()<<"显示窗口:"<<QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss.zzz"); } void TimerDialog::onTimeout() { qDebug()<<"时间到了，准备关闭:"<<QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss.zzz"); close(); timer->stop(); delete timer; timer=nullptr; } TimerDialog::~TimerDialog() { delete ui; }