Update app.py

app.py

@@ -50,7 +50,7 @@ def respond(
             print(event)
             print(type(event))
             print(event.choices[0])
-            print(event.choices[0].Choice)
+            print(event.choices[0].delta)
             print(222222222222)
             token = event.choices[0]['Delta']['Content']
             if message.find('写一篇关于青春的五言绝句') != -1: