原文：https://blog.csdn.net/uyy203/article/details/52704059
MyThread.h
#ifndef MYTHREAD_H
#define MYTHREAD_H
#include <QThread>
#include <QDebug>
class MyThread : public QThread
{
Q_OBJECT
public:
explicit MyThread(QObject *parent = 0);
~MyThread();
protected:
void run();
};
#endif // MYTHREAD_H
MyThread.cpp
#include "mythread.h"
MyThread::MyThread(QObject *parent) :
QThread(parent)
{
}
MyThread::~MyThread()
{
}
void MyThread::run()//线程执行函数
{
qDebug("MyThread!\n");
QThread::msleep(1000);//线程休眠1000毫秒，相当于延时1s，实现每1秒从qDebug打印出"MyThread!"
}
MainWindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include<mythread.h>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
void on_pushButton_clicked();
private:
Ui::MainWindow *ui;
MyThread *myThread;
};
#endif // MAINWINDOW_H
MainWindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
qDebug("mainwindow!\n");
myThread=new MyThread;
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
myThread->start();//启动线程
}
