foreach和QListIterator遍历容器

　　 QList<int>numlist;

    numlist.push_back(1);

    numlist.push_back(20);

    numlist.push_front(21);

    numlist.prepend(2);

    numlist.append(11);

   // qSort(numlist.begin(),numlist.end()); //按大小排序

    foreach(int num,numlist)

    {

        qDebug() <<num;

    }

   QListIterator<int>in(numlist);

   while (in.hasNext()) {

       qDebug() <<in.next();

   }