QT Programming 1

1.控制台输出 helloworld

 

#include<QtCore/QCoreApplication>

#include<QDebug>

int main(int argc,char *argv[]){

    QCoreApplication a(argc,argv);

    qDebug() << "hello world";

    return a.exec();

}

 

 

2.控制台输出 helloworld(QString应用)

#include<QtCore/QCoreApplication>

#include<QDebug>

int main(int argc,char *argv[]){

    QCoreApplication a(argc,argv);

    QString mStr="hellowlrd";

    qDebug() << mStr;

    return a.exec();

}