类类型Objective C [英] Class type Objective C

问题描述

在 NSObject 协议中，它定义了类似于以下的方法：

In the NSObject protocol, it defines a method that is similar to this:

-(Class) class

Class对象是什么类型的对象？或者甚至是一个对象？我可以用对象做什么？

What type of object is the Class object? Or is it even an object? What can I do with the object? Can I get the base class or adopted protocols?

推荐答案

类是本身是由 Objective-C运行时定义的类，类似于Java中的 Class 类。例如，您可以使用 class_getClassName（） 获取类的名称：

Class is itself a class defined by the Objective-C runtime, akin to the Class class in Java. For example, you can use the function class_getClassName() to get the name of a class:

NSObject *o = [[[NSObject alloc] init] autorelease];
NSLog(@"%s\n", class_getClassName([o class]));  // prints "NSObject"

您可以使用 Class objects;有关详细信息，请参阅Objective-C运行时参考。

You can do all kinds of introspection/reflection with Class objects; see the Objective-C runtime reference for details.

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