QT5创建线程

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开发应用是经常会用到多线程，使用QT5实现多线程的方式时，首先新建C++类继承QThread，然后重写run方法。

1.cfaceclassthread.h

#ifndef CFACECLASSTHREAD_H#define CFACECLASSTHREAD_H#include <QThread>#include <QEventLoop>#include <QTimer>#include <iostream>using namespace std;class CFaceClassThread : public QThread{public:    CFaceClassThread();    //结束线程标志位    bool bStopThread;    void run();};#endif // CFACECLASSTHREAD_H

2.cfaceclassthread.cpp

#include "cfaceclassthread.h"CFaceClassThread::CFaceClassThread(){    bStopThread = false;}//线程执行函数void CFaceClassThread::run(){    //cout<<"thread run!"<<endl;    bStopThread = false;    while(!bStopThread)    {        //to do what you want        //延时等待一会        QEventLoop eventloop;        QTimer::singleShot(100, &eventloop, SLOT(quit()));        eventloop.exec();    }}

3.MainWindow.cpp

    m_thread = new CFaceClassThread();    m__thread->start();

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