1、协议
可以理解为java里面的接口
2、测试Demo
NSObject+chenyu.h
#ifndef NSObject_chenyu_h
#define NSObject_chenyu_h
#import <Foundation/Foundation.h>
@interface NSObject(chenyu)
-(void)test;
@end
#endif /* NSObject_chenyu_h */
Org.h
#ifndef Org_h
#define Org_h
#import <Foundation/Foundation.h>
#import "NSObject+chenyu.h"
@interface Org : NSObject
@end
#endif /* Org_h */
Org.m
#import <Foundation/Foundation.h>
#import "Org.h"
//#import "NSObject+chenyu.h"
@implementation Org
//如果不实现协议中的方法会发生错误
-(void)test
{
NSLog(@"this is org test method");
}
@end
main.m
#import "Org.h"
int main(int argc, char * argv[]) {
@autoreleasepool {
Org *org = [Org new];
[org test];
}
}
3、运行结果
this is org test method
