QThread应用实例

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { //ui->setupUi(this); //注释 resize(600,400); //设置窗口大小为600*400 centralWidget=new QWidget(this); //创建QWidget对象 progressBar=new QProgressBar(centralWidget); //创建进度条对象 progressBar->setGeometry(QRect(130,180,321,23)); //设置进度条显示范围 progressBar->setValue(0); //设置默认值为0 pushButton=new QPushButton("test",centralWidget); //新建test按钮 pushButton->setGeometry(QRect(110,100,75,23)); //设置按钮显示范围 QObject::connect(pushButton,SIGNAL(clicked()),this,SLOT(OnClicked())); //设置信号和槽 this->setCentralWidget(centralWidget); } MainWindow::~MainWindow() { delete ui; }