Update app.py

app.py

@@ -32,11 +32,14 @@ def chat_fn(message, history, model, system_message, max_tokens, temperature, to
     response_generator = respond(message, history_list, model, system_message, max_tokens, temperature, top_p, top_k, repeat_penalty)
     
     for messages in response_generator:
-        # 转换 messages 为 Gradio Chatbot 接受的格式
+        # 将历史消息直接转换为 Gradio Chatbot 格式
         chatbot_messages = []
-        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
+        for user_msg, assistant_msg in messages:
+            if user_msg:  # 添加用户消息
+                chatbot_messages.append([user_msg, False])
+            if assistant_msg:  # 添加助手消息
+                chatbot_messages.append([assistant_msg, True])
+        yield chatbot_messages, messages
 
 
 def respond(