问题
The Apple's developer documentation says:
NSObject is The root class of most Objective-C class hierarchies, from which subclasses inherit a basic interface to the runtime system.
I wonder what is the root class of all classes in Swift in the example below:
class MyClass {
....
}
回答1:
Swift classes do not inherit from a universal base class. Classes you define without specifying a superclass automatically become base classes for you to build upon.
https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/Inheritance.html
Is that what you were looking for? :)
来源：https://stackoverflow.com/questions/45732922/root-class-of-all-classes-in-swift