Update app.py

app.py

@@ -42,7 +42,7 @@ def answer_question(repo_id, temperature, max_length, question):
         prompt = f"请根据以下知识库回答问题：\n{context}\n问题：{question}"
         print('prompt: ' + prompt)
 
-        answer = llm(prompt)
+        answer = llm.invoke(prompt)
         return answer
     except Exception as e:
         st.error(f"问答过程出错：{e}")