Update app.py

app.py

@@ -9,10 +9,13 @@ openai.api_key = os.environ.get('openai-api')
 with gr.Blocks(theme=gr.themes.Glass()) as demo:
 
     def showall(code:str):
-        if code = os.environ.get('accesscode')
+        if code == os.environ.get('accesscode')
             visibility = gr.update(visible = True)
             invisibility = gr.update(visible = False)
             return visibility, visibility, visibility, visibility, invisibility
+        else:
+            tryagain = gr.update(value = None, placeholder = "Try again - 再試一次")
+            return invisibility, invisibility, invisibility, invisibility, tryagain
     
     def refreshmode1(mode):
         mode = gr.update(value= "mode1")