diff --git a/README.md b/README.md
index 28f02e0..0bb167c 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@
 
 # 部分效果预览
 
-## 内置一个ChatGPT聊天Demo
+## 一个聊天Demo，调用了ChatGPT的接口
 
 ![](doc/preview/chatgpt.png)
 
diff --git a/example/ChatController.cpp b/example/ChatController.cpp
index 2e728cd..ec22e00 100644
--- a/example/ChatController.cpp
+++ b/example/ChatController.cpp
@@ -12,7 +12,7 @@ void ChatController::sendMessage(const QString& text){
     QUrl apiUrl("https://api.openai.com/v1/engines/text-davinci-003/completions");
     QNetworkRequest request(apiUrl);
     request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
-    request.setRawHeader("Authorization", "Bearer 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");
+    request.setRawHeader("Authorization", QString::fromStdString("Bearer %1").arg(QString::fromUtf8(QByteArray::fromBase64(baseKey.toUtf8()))).toUtf8());
     QJsonObject requestData;
     requestData.insert("prompt", text);
     requestData.insert("max_tokens", 1000);
@@ -21,21 +21,20 @@ void ChatController::sendMessage(const QString& text){
     QByteArray requestDataBytes = requestDoc.toJson();
     QNetworkReply* reply = networkManager->post(request, requestDataBytes);
     connect(reply, &QNetworkReply::finished,this, [=]() {
-        QString responseString = QString::fromUtf8(reply->readAll());
-        qDebug() << responseString;
-        QJsonDocument doc = QJsonDocument::fromJson(responseString.toUtf8());
-        QJsonObject jsonObj = doc.object();
-        QString text = jsonObj.value("choices").toArray().at(0).toObject().value("text").toString();
-        if(text.isEmpty()){
-            text = "不好意思，我似乎听不懂您的意思";
+        if (reply->error() == QNetworkReply::NoError) {
+            QString responseString = QString::fromUtf8(reply->readAll());
+            qDebug() << responseString;
+            QJsonDocument doc = QJsonDocument::fromJson(responseString.toUtf8());
+            QJsonObject jsonObj = doc.object();
+            QString text = jsonObj.value("choices").toArray().at(0).toObject().value("text").toString();
+            if(text.isEmpty()){
+                text = "不好意思，我似乎听不懂您的意思";
+            }
+            responseData(text);
+            reply->deleteLater();
+            isLoading(false);
+        } else {
+            responseData("网络错误："+reply->errorString());
         }
-        responseData(text);
-        reply->deleteLater();
-        isLoading(false);
-    });
-    connect(reply, QOverload<QNetworkReply::NetworkError>::of(&QNetworkReply::errorOccurred), this, [=](QNetworkReply::NetworkError) {
-        qDebug() << "Network error occurred: " << reply->errorString();
-        reply->deleteLater();
-        isLoading(false);
     });
 }
diff --git a/example/ChatController.h b/example/ChatController.h
index acfa73c..30d23a5 100644
--- a/example/ChatController.h
+++ b/example/ChatController.h
@@ -22,6 +22,7 @@ public:
 
 private:
     QNetworkAccessManager* networkManager;
+    QString baseKey = "c2stbXgxWm5MQkZ5TzhNYzNmRWl6eDZUM0JsYmtGSnNBWjNiakJjSXB6WGN3QW9KSk11";
 };
 
 #endif // CHATCONTROLLER_H