Q:

How to add multiple pages in Google App Engine?

I'm a beginner on GAE and I was wondering if it was possible to add another page to it so  the home page would be
"example.appspot.com"
and the second would be
"example.appspot.com/test"
I've already tried looking for something that helps but the answers aren't what I'm looking for.

A:

Of course it is possible to add more pages.  The configuration for defining the URL matchers depends on the language runtime that you are using.
For Java:

The deployment descriptor is a file named web.xml. It resides in the
  app's WAR under the WEB-INF/ directory.

https://developers.google.com/appengine/docs/java/config/webxml
For Python:

A Python app specifies runtime configuration, including versions and
  URLs, in a file named app.yaml

https://developers.google.com/appengine/docs/python/config/appconfig#Python_app_yaml_About_app_yaml

