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QT QTimer 的单次延迟触发静态函数演示

 3 years ago
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QT QTimer 的单次延迟触发静态函数演示

哎哎5年前 (2016-09-22)C++962 
 #include <QApplication>
 #include <QTimer>
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
     QTimer::singleShot(600000, &app, SLOT(quit()));
     ...
     return app.exec();
 }

在QTimer的帮助手册中查询到了，如下函数

void QTimer::singleShot ( int msec, QObject * receiver, const char * member ) [static]

介绍是 ，可以根据设置，进行单次的延迟触发。

只需要一句话，即可延迟触发某函数。

main.c

  QTimer::singleShot(1000,&w,SLOT(runDebug()));

mainwindow.cpp

void MainWindow::runDebug()
{
    qDebug()<<QString::fromLocal8Bit("续一秒是坠吼的");
}

运行结果  +1s；

QQ截图20160922181536.png


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