Where are the outputs and actions stored in code in Objective-C?

Question

I understand that in Objective-C, we can bind buttons and actions together using the interface builder, but the connection must be physically stored in the source code somewhere. I just want to know where the exact location is, so I can view it in the source code. Not that I'm going to manipulate it, anyway, I just want to know where they are stored.

Thank!

Answer 1

, . xib/ . . , . ( , ), .

Answer 2

, xib , XML. , . , objective-c, . XML.