df_string_output

app.py

@@ -63,7 +63,7 @@ def respond(user_message, chat_history):
 with gr.Blocks() as demo:
     with gr.Row():
         file_upload = gr.File(label="Upload your file")
-        df_string_output = gr.Textbox(label="DataFrame as String", visible=False)
+        df_string_output = gr.Variable()
 
     with gr.Row():
         chatbot = gr.Chatbot()
@@ -81,7 +81,7 @@ with gr.Blocks() as demo:
     # 处理聊天机器人的对话
     send_button.click(
         respond, 
-        inputs=[msg, chatbot], 
+        inputs=[msg, df_string_output, chatbot], 
         outputs=[msg, chatbot]
     )