用了rerun

app.py

@@ -364,6 +364,8 @@ def app():
         st.session_state.course_content_list = initialize_content(st.session_state.course_outline_list, st.session_state.embeddings_df, st.session_state.faiss_index, language)
 
         btn = st.button('regenerate this course')
+        if btn:
+            st.rerun()
 
     col1, col2 = st.columns([0.6,0.4])
     user_question = st.chat_input("Enter your questions when learning...")