Update app.py

app.py

@@ -3,6 +3,5 @@ import gradio as gr
 def greet(name):
     return f"你好，{name}！"
 
-app = gr.Interface(fn=greet, inputs="text", outputs="text")
-
-app.launch()
+demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+demo.launch()