OBJECTIVE-C Program Structure

Classes are the core of objective-c, and objective-c programs are all around classes. The OBJECTIVE-C program consists of at least the following three parts:

1. Class Interface: Defines the data and methods of the class, but does not include the implementation code of the method.

2, class implementation: warehousing the implementation of the class method code.

3. Application: Call the class to complete some actual operation of the application.

Class interface, which we can understand as the *.h of the header file, which is the definition of the class in the C + + language.

Class implementation, we can understand the *.cpp file in the C + + language, that is, the implementation code of the class.

The application also consists of our main function and other functions that implement some function code.

OBJECTIVE-C Program Structure