#include<QJsonArray>
#include <QJsonObject>
#include <QJsonDocument>QJsonObject jsonObject;QJsonArray jsonArray;jsonObject.insert("Key","K文件");jsonObject.insert("Value",jsonArray);QJsonDocument jsonDoc(jsonObject);QString jsonData = jsonDoc.toJson(QJsonDocument::Compact);tcpSocket->write(jsonData.toUtf8());qDebug()<<jsonData.toUtf8();
QString name="驾驶员";
tcpSocket->write(name.toUtf8());
QByteArray receivedData = msg.toUtf8();
QString receivedString = QString::fromUtf8(receivedData);
qDebug()<<"接受的数据是 "+receivedString;