How to understand inheritance in Objective-C

This article shows you the inheritance in Objective-C, which is concise and easy to understand. It will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

When dealing with the relationship between classes and objects, you should pay special attention to two aspects of OOP. The first aspect is inheritance. Another OOP technique related to classes is composition, which means that other objects can be referenced in objects.

Syntax for inheritance: @ interface Circle: NSObject

In OC, you can choose not to inherit, but if you use the cocoa framework, you need to inherit the NSObject class because it provides a lot of useful features. OC does not support multiple inheritance, which means it cannot be inherited from multiple classes. The effect of multiple inheritance can be achieved through category (category) and protocol (protocol).

The above is the inheritance in Objective-C. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.