实现输入字符串反转

QString reversalStr(QString &str)

{

    QString ret;

    for(QChar sz:str)

    {

        ret.push_front(sz);

    }

    return ret;

}

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

{

    QCoreApplication a(argc, argv);

    QString str;

    QTextStream stream(stdin);

    while (1) {

        str.clear();

        stream>>str;

        qDebug("%d", checkChar(str));

        qDebug()< 
  
    }
 
  
    return a.exec();
 
  
}