Update app.py

app.py

@@ -50,9 +50,9 @@ def respond(
             print(event)
             print(type(event))
             print(event.choices[0])
-            print(event.choices[0].delta)
+            print(event.choices[0].delta.content)
             print(222222222222)
-            token = event.choices[0]['Delta']['Content']
+            token = event.choices[0].delta.content
             if message.find('写一篇关于青春的五言绝句') != -1:
                 print(11111111111)
                 print(token)