Self and super in the Objective-c

1. An object-oriented person knows that self equals this,super equivalent to calling a method of the parent class

2.self is a hidden parameter of the class, pointing to the class that is currently calling the method, and another hidden parameter is _cmd, which represents the selector of the current class method.

Super is not a hidden parameter, it is just a "compiler indicator", and self points to the same message receiver, which means that

[Self Class]=[super class].

The difference is that super tells the compiler that when a method is called, it calls the method of the parent class, not the class.

In summary, when the method is called with self, it is searched from the list of methods in the current class, and if not, from the parent class, and when super is used, the method is called from the list of methods in the parent class.

Self and super in the Objective-c