isKindOfClass 和 isMemberOfClass 之间的 iOS 区别 [英] iOS difference between isKindOfClass and isMemberOfClass

问题描述

isKindOfClass:(Class)aClass 和 isMemberOfClass:(Class)aClass 函数有什么区别?我知道它很小，一个是全局的，而另一个是精确的类匹配，但我需要有人指定哪个是哪个.

What is the difference between the isKindOfClass:(Class)aClass and the isMemberOfClass:(Class)aClass functions? I know it is something small like, one is global while the other is an exact class match but I need someone to specify which is which please.

在 Swift 中 isKind(of aClass: AnyClass) 和 isMember(of aClass: AnyClass).

In Swift isKind(of aClass: AnyClass) and isMember(of aClass: AnyClass).

推荐答案

isKindOfClass: 返回 YES 如果接收者是一个实例指定的类或从指定的类继承的任何类的实例.

isKindOfClass: returns YES if the receiver is an instance of the specified class or an instance of any class that inherits from the specified class.

isMemberOfClass: 当且仅当接收者是指定类的实例时返回YES.

isMemberOfClass: returns YES if, and only if, the receiver is an instance of the specified class.

大多数时候您想使用 isKindOfClass: 来确保您的代码也适用于子类.

Most of the time you want to use isKindOfClass: to ensure that your code also works with subclasses.

NSObject 协议参考 讨论了更多关于这些方法.

The NSObject Protocol Reference talks a little more about these methods.

这篇关于isKindOfClass 和 isMemberOfClass 之间的 iOS 区别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！