Qt中的QTimer的应用

来源：互联网发布：圣地亚哥州立大学知乎编辑：程序博客网时间：2024/04/29 12:19

工程名为Console，这个Qt工程没用到GUI，是命令行运行的，一开始搞不明白怎么写。
Console.pro

QT += coreQT -= guiCONFIG += c++11TARGET = ConsoleCONFIG += consoleCONFIG -= app_bundleTEMPLATE = appSOURCES += main.cpp \    test.cppHEADERS += \    test.h

test.h

#ifndef TEST_H#define TEST_H#include <QObject>#include <QTimer>#include <QDebug>class Test : public QObject{    Q_OBJECTpublic:    explicit Test(QObject *parent = 0);    //QTimer *timer;signals:public slots:    void show();};#endif // TEST_H

test.cpp

#include "test.h"Test::Test(QObject *parent) : QObject(parent){}void Test::show(){    QTimer *timer = new QTimer();    connect( timer, SIGNAL(timeout()), this, SLOT(show()) );    timer->start(1000);    qDebug() <<"hello";    timer->stop();}

main.cpp

#include <QCoreApplication>#include "test.h"int main(int argc, char *argv[]){    QCoreApplication a(argc, argv);    Test t;    t.show();    return a.exec();}

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