单例模式下，使用多线程实现

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); connect(this,SIGNAL(info(QString ,int )),this,SLOT(showInfo(QString ,int ))); qDebug()<<"num = " << APPCONFIG->getNums(); } MainWindow::~MainWindow() { delete ui; } SingleMode *SingleMode::getInsteast() { static SingleMode single; return &single; } int SingleMode::getNums() { m_num ++; return m_num; } void SingleMode::run() { m_stopflag = false; emit info("start:---CThread_child---"); while (m_stopflag == false) { QThread::msleep(1000); m_num ++; qDebug()<< "Child: Is running, num = " << m_num; } } SingleMode::SingleMode() { m_num = 0; } SingleMode::~SingleMode() { m_num = 0; } void MainWindow::on_pushButton_clicked() { emit info("Btn1:---Start theread ---",0); APPCONFIG->start(); } void MainWindow::on_pushButton_2_clicked() { emit info("Btn2:---Stop thread ---",1); APPCONFIG->stop(); } void MainWindow::showInfo(QString info, int flag) { QString tempinfoshow; QString tempstr; if(flag == 0) tempinfoshow = "<span style='color:blue;'>%1</span>"; else tempinfoshow = "<span style='color:red;'>%1</span>"; if (ui->textBrowser->document()->blockCount() >= 2000) ui->textBrowser->clear(); QTime curtime = QTime::currentTime(); tempstr = QString("info:[%1]<br>").arg(curtime.toString("hh:mm:ss")); tempstr += info; tempinfoshow = tempinfoshow.arg(tempstr); ui->textBrowser->append(tempinfoshow); }