如何在目标c中从第二类访问第一类方法 [英] How to access first class method from second class in objective c

问题描述

我写了两个包含相同方法(打印)的类.我想使用第二类对象访问第一类打印方法.我怎样才能做到这一点?

I have written two classes which contains same method (print). I want to access first class print method using second class object. How i can achieve this?

代码:

@interface classA : NSObject
-(void) print;
@end

@implementation classA

-(void) print
{
    NSLog(@"hello");
}

@end

@interface classB : classA

-(void) print;
@end

@implementation classB

-(void) print{
    NSLog(@"hey");
}
@end

现在我创建了第二类对象

Now i created second class object like

classB *B = [classB alloc]init];

推荐答案

使用委托访问其他类 @protocol

use delegates to access other classes @protocol

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