Qt使用QJsonDocument，QJsonObject，QJsonArray解析JSON

我想到了：

QStringList propertyNames;QStringList propertyKeys;QString strReply = (QString)reply->readAll();QJsondocument jsonResponse = QJsondocument::fromJson(strReply.toUtf8());QJsonObject jsonObject = jsonResponse.object();QJsonArray jsonArray = jsonObject["properties"].toArray();foreach (const QJsonValue & value, jsonArray) {    QJsonObject obj = value.toObject();    propertyNames.append(obj["PropertyName"].toString());    propertyKeys.append(obj["key"].toString());}