QT线程1

#include "threaddlg.h"
#include <QHBoxLayout>

ThreadDlg::ThreadDlg(QWidget *parent)
    : QDialog(parent)
{
    setWindowTitle(tr("线程"));

    startBtn = new QPushButton(tr("开始"));
    stopBtn = new QPushButton(tr("停止"));
    quitBtn = new QPushButton(tr("退出"));

    QHBoxLayout *mainLayout = new QHBoxLayout(this);
    mainLayout->addWidget(startBtn);
    mainLayout->addWidget(stopBtn);
    mainLayout->addWidget(quitBtn);

    connect(startBtn,SIGNAL(clicked()),this,SLOT(slotStart()));
    connect(stopBtn,SIGNAL(clicked()),this,SLOT(slotStop()));
    connect(quitBtn,SIGNAL(clicked()),this,SLOT(close()));
}

ThreadDlg::~ThreadDlg()
{
    
}

void ThreadDlg::slotStart()
{
    for(int i=0;i<MAXSIZE;i++)
    {
        workThread[i]=new WorkThread();
    }
    for(int i=0;i<MAXSIZE;i++)
    {
        workThread[i]->start();
    }
    startBtn->setEnabled(false);
    stopBtn->setEnabled(true);
}

void ThreadDlg::slotStop()
{
    for(int i=0;i<MAXSIZE;i++)
    {
        workThread[i]->terminate();
        workThread[i]->wait();
    }
    startBtn->setEnabled(true);
    stopBtn->setEnabled(false);
}

#include "workthread.h"
#include <QtDebug>

WorkThread::WorkThread()
{
}

void WorkThread::run()
{
    while(true)
    {
        for(int n=0;n<10;n++)
            qDebug()<<n<<n<<n<<n<<n<<n<<n<<n;
    }
}