再来一个QT C++版本的代码

以下是一个简单的使用QT C++实现的聊天机器人：

#include <QCoreApplication>
#include <QDebug>
#include <QJsonObject>
#include <QJsonDocument>
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>

QString api_key = "YOUR_API_KEY";
QString api_secret = "YOUR_API_SECRET";
QString api_url = "https://api.chit.chat/v1/chat";

void requestFinished(QNetworkReply *reply)
{
    QJsonObject obj = QJsonDocument::fromJson(reply->readAll()).object();
    QString response = obj.value("response").toString();
    qDebug() << "ChitGPT: " << response;
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QNetworkAccessManager *manager = new QNetworkAccessManager();

    QString message;

    while (message != "exit") {
        qDebug() << "You: ";
        message = QInputDialog::getText(nullptr, "ChitGPT", "Type your message:");
        if (!message.isEmpty()) {
            QJsonObject obj = {
                {"api_key", api_key},
                {"api_secret", api_secret},
                {"message", message}
            };
            QNetworkRequest req(api_url);
            req.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
            QNetworkReply *reply = manager->post(req, QJsonDocument(obj).toJson());
            QObject::connect(reply, &QNetworkReply::finished, [=]{
                requestFinished(reply);
                reply->deleteLater();
            });
            QCoreApplication::processEvents();
        }
    }

    return a.exec();
}

在这个例子中，我们使用了QT的`QNetworkAccessManager`来进行HTTP请求。我们创建了一个`requestFinished`回调函数来获取响应，并且在主循环中使用`QInputDialog`来获取用户输入。注意，你需要将`api_key`和`api_secret`替换为你自己的Chit Chat API凭证。