fix: 使用正确的字典键访问处理 Gradio 历史记录

app.py

@@ -15,10 +15,10 @@ def respond(message, history, system_message, hf_token: gr.OAuthToken = None):
         messages.append(SystemMessage(content=system_message))
     
     for chat_message in history:
-        if chat_message.role == "user":
-            messages.append(HumanMessage(content=chat_message.content))
-        elif chat_message.role == "assistant":
-            messages.append(AIMessage(content=chat_message.content))
+        if chat_message['role'] == "user":
+            messages.append(HumanMessage(content=chat_message['content']))
+        elif chat_message['role'] == "assistant":
+            messages.append(AIMessage(content=chat_message['content']))
             
     messages.append(HumanMessage(content=message))