QT5线程QThread使用示例

#include "widget.h" #include "ui_widget.h" #include <QDebug> Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); test_thread = new my_thread(); QObject::connect(test_thread, SIGNAL(send(QString)), this, SLOT(accept(QString))); } Widget::~Widget() { delete ui; } void Widget::accept(QString msg) { ui->label->setText(msg); qDebug()<<msg; } void Widget::on_pushButton_clicked() { test_thread->start(); } void Widget::on_pushButton_2_clicked() { test_thread->stop(); test_thread->wait(); }