qt容器类的使用

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#include<QtDebug>
#include<QList>
#include<QVector>
#include<QHash>
#include<QStack>
#include<QQueue>
#include<QMap>

相应容器类的关键用法代码

 //队列
    QQueue<int> myqueue;
    myqueue.enqueue(10);
    myqueue.enqueue(20);
    myqueue.enqueue(60);
    while (!myqueue.isEmpty()) {
        qDebug() << myqueue.dequeue() <<endl;
    }

    QQueue<string> queue;
    queue.enqueue("hello");
    queue.enqueue("world");
    queue.enqueue("qt code");
    while (!queue.isEmpty()) {
        qDebug() <<"QQueue: "<< queue.dequeue().data() <<endl;
       // printf("%s \n",queue.dequeue().data());
    }

    //栈
    QStack<int> mystack;
    mystack.push(10);
    mystack.push(20);
    mystack.push(30);
    while (!mystack.isEmpty()) {
        qDebug()<<"QStack: "<< mystack.pop() <<endl;
    }

    QVector<int> myvector;
    myvector.append(50);
    myvector.append(30);
    myvector.append(20);
    myvector.push_front(100);
    QVector<int>::iterator iter;
    for (iter=myvector.begin();iter != myvector.end();iter++) {
        qDebug() <<"QVector: "<< *iter << endl;
    }

    QList<string> mylist;
    mylist.append("hello ");
    mylist.append("world ");
    mylist.push_front("list : ");
    QList<string>::iterator list_iter;
    for (list_iter=mylist.begin();list_iter != mylist.end();list_iter++) {
        qDebug()<<"QList: "<< list_iter->data() <<endl;
    }
    qDebug()<<"test2: " <<endl;
    mylist.insert(2,"2 world");
    mylist.replace(0,"123456");
    for (list_iter=mylist.begin();list_iter != mylist.end();list_iter++) {
        qDebug()<<"QList: "<< list_iter->data() <<endl;
    }

//hash与map类似
//hash
    QHash<QString ,int> myhash;
    myhash.insert("alen",1);
    myhash["lucy"]=2;
    myhash["peter"]=3;
    QHashIterator<QString ,int> hash_iter(myhash);
    while (hash_iter.hasNext()) {
        hash_iter.next();
        qDebug() << hash_iter.key() << ":" << hash_iter.value();
    }

//map
    QMap<QString, int> map;
    map.insert("key 2", 2);
    map.insert("key 0", 0);
    map.insert("key 1", 1);
    map["key 3"]=3;

    // 通过QList获取键值对
    QList<QString> kList = map.keys();
    for(int i=0; i<kList.count(); i++)
    {
       qDebug() << kList[i];
    }

    QList<int> vList = map.values();
    for(int i=0; i<vList.count(); i++)
    {
       qDebug() << vList[i];
    }

    // 通过QMapIterator获取键值对
        QMapIterator<QString, int> it(map);
        while(it.hasNext())
        {
            it.next();
            qDebug() << it.key() << ":" << it.value();
        }