Update app.py

app.py

@@ -64,7 +64,8 @@ st.sidebar.button('Clear Chat History', on_click=clear_chat_history)
 
 # Function for generating LLaMA2 response
 def generate_llama_index_response(prompt_input):
-    return greet2(prompt_input)
+    full_prompt = f"作为医疗知识问答助手，我将根据我的知识库回答你的问题：{prompt_input}"
+    return greet2(full_prompt)
 
 # User-provided prompt
 if prompt := st.chat_input():