Update app.py

app.py

@@ -34,9 +34,9 @@ def chat_fn(message, history, model, system_message, max_tokens, temperature, to
     for messages in response_generator:
         # 转换 messages 为 Gradio Chatbot 接受的格式
         chatbot_messages = []
-        for msg in messages:
-            chatbot_messages.append([msg["content"], msg["role"] == "assistant"]) #  直接使用字典中的值
-        yield chatbot_messages, history  #  yield 正确格式的消息列表
+        for msg in messages:  # messages 现在是 BasicChatHistory 对象，可以直接迭代
+            chatbot_messages.append([msg["content"], msg["role"] == "assistant"])
+        yield chatbot_messages, history
 
 
 def respond(