objective-c - +load方法里面 self 和 [self class] 返回的对象是同一个
某草草
某草草 2017-05-02 09:26:54
0
2
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cls和selfcls 指向同一个地址(RuntimeViewController类对象)。

按照oc的类结构,[self class]不是应该指向RuntimeViewController的元类吗?

某草草
某草草

reply all(2)
PHPzhong

Look at this and you will understand
http://xiongzenghuidegithub.github.io/blog/2016/05/17/runtime-part7-object-getclass-yu-object-class-de-qu-bie/

phpcn_u1582


    //实例对象调用class时返回isa指向的objc_object
    -class
    {
        return (id)isa; 
    }
    
    //类对象调用class时返回类对象自己
    +class 
    {
        return self;
    }
    
    
    //取自Object.h Object.m
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