[Daily Brush title (2015/7/6)] explains the application characteristics of ASP.net __.net

The purpose of the Application object in development is to record information shared by all users in the Web application in which the Application object resides.

The Application object is written in the global.aspx file. (with Application_Start and application_end these two events)

The Application object is created when the Web reference is started when the first user accesses a page, exists throughout the Web application run time, and is destroyed when the Web application shuts down.

The above for my personal understanding of the Application object, relatively concise. Specific details can refer to this URL: Click on the Open link