QT 文件的读写，将txt中的数据存储到QVector

//文件的读取
    QFile file_1("C:\Users\L\Desktop\1617.txt");
    QVector<int> array;
 
    if(file_1.open(QIODevice::ReadOnly))
    {
 
        QTextStream stream(&file_1);
        while(!file_1.atEnd())
        {
            int buf;
            QStringList list = stream.readAll().split(" ");
            QListIterator<QString> li(list);
 
            while(li.hasNext())
            {
                buf=li.next().toInt();
                array.append(buf);
            }
        }

    }
 
     //文件的写入
    QFile file_2("C:\Users\L\Desktop\1618.txt");
    if(file_2.open(QIODevice::WriteOnly | QIODevice::Text))
    {
        QTextStream out(&file_2);
 
        for(int a{0}; a<array.size(); a++)
            out<<array[a]<<" ";
    }
    file_2.close();