如何使用Qt应用程序为kml文件中的"QDomElement“标签添加Id

QFile file("path/to/your/kml/file.kml");
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
    qDebug() << "Failed to open KML file.";
    return;
}

QXmlStreamReader xml(&file);

while (!xml.atEnd() && !xml.hasError()) {
    if (xml.readNextStartElement()) {
        if (xml.name() == "QDomElement") {
            // 找到目标标签，进行修改
            QDomElement element = xml.readElementText();
            element.setAttribute("Id", "your_id_value");
            // 更新修改后的标签内容
            // ...
        }
    }
}

QFile outputFile("path/to/your/output/file.kml");
if (!outputFile.open(QIODevice::WriteOnly | QIODevice::Text)) {
    qDebug() << "Failed to create output KML file.";
    return;
}

QXmlStreamWriter xmlWriter(&outputFile);
xmlWriter.setAutoFormatting(true);

// 将修改后的KML文件内容写入新文件
// ...

outputFile.close();