QTextStream把数据写入文件

Qt把数据写入文件

 

QString splitFileName = pcdFiePath;
splitFileName = splitFileName.replace(".pcd",".txt");
QFile splitDataFile(splitFileName);
if (!splitDataFile.open(QIODevice::WriteOnly)) {
    //qDebug() << "pcd file can't open...";
    QString logStr2 = QString(u8"写入文件无法打开!");
    qDebug() << "" << logStr2;
    return pcd_geode;
}

QTextStream fileWriteObj(&splitDataFile);

QString lineHeaderStr = QString("")
    .append(QString("id\t"))
    .append(QString("level\t"))
    .append(QString("s_x\t"))
    .append(QString("s_y\t"))
    .append(QString("s_z\t"))
    .append(QString("e_x\t"))
    .append(QString("e_y\t"))
    .append(QString("e_z\n"))
    ;

fileWriteObj << lineHeaderStr;


for (int k = 0; k < list_all_space.size(); k++)
{
    PCDSpace* indexSpace = list_all_space.at(k);

    QString lineDataStr = QString("")
        .append(QString::number(space_id)).append(QString("\t"))
        .append(QString::number(spaceLevel)).append(QString("\t"))
        .append(QString::number(s_x)).append(QString("\t"))
        .append(QString::number(s_y)).append(QString("\t"))
        .append(QString::number(s_z)).append(QString("\t"))
        .append(QString::number(e_x)).append(QString("\t"))
        .append(QString::number(e_y)).append(QString("\t"))
        .append(QString::number(e_z)).append(QString("\n"))
        ;

    fileWriteObj << lineDataStr;
    

}


splitDataFile.flush();
splitDataFile.close();

 

 

 

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