Silverlight被实现为浏览器插件，并按如下所述添加到网页中:将Silverlight与网页集成 [

Silverlight is implemented as a browser plugin and is added to a web page as described here: Integrating Silverlight with a Web Page[^]

If you have more than one Silverlight application then you can integrate them with your web pages the same way. The .xap file name and/or URI will be different but that''s it.

Your text doesn''t make sense - adding a user control to a Silverlight application has nothing to do with the web page the Silverlight application is hosted on so you can''t expect another test page.