Update app.py

app.py

@@ -1,4 +1,5 @@
 import gradio as gr
+import random
 
 class SimpleChatBot:
     def __init__(self):
@@ -16,14 +17,14 @@ chatbot = SimpleChatBot()
 
 def respond(message, chat_history):
     response = chatbot.get_response(message)
-    chat_history.append(("用戶", message))
-    chat_history.append(("機器人", response))
+    chat_history.append({"role": "user", "content": message})
+    chat_history.append({"role": "assistant", "content": response})
     return chat_history, ""
 
 with gr.Blocks(title="簡單的Gradio聊天機器人") as demo:
     gr.Markdown("# 簡單的Gradio聊天機器人")
     
-    chatbot_interface = gr.Chatbot()
+    chatbot_interface = gr.Chatbot(type="messages")
     
     with gr.Row():
         user_input = gr.Textbox(placeholder="輸入訊息...", label="你的訊息")