编程第三十六天

QT中java风格迭代器

#includes<QcoreApplication>

#include<QList>
#include<QListIterator>
#include<QDebug>
int main(int argc,char *argv[])
{
    QCoreApplication a(argc,argv);
    QList<QString>list;
    list<<"A"<<"B"<<"C"<<"D";
    QListIterator<QString>i(list);
    qDebug()<<"the forwardis :";
    while(i.hasNext())
        qDebug()<<i.next();
    qDebug()<<"the backwardis :";
    while(i.Previous())
        qDebug()<<i.previous();
    return a.exec();
}