//
// Student.h
// OC3_协议关键字
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Programmer.h"
@interface Student : NSObject <Programmer>
@end
//
// Student.m
// OC3_协议关键字
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Student.h"
@implementation Student
- (
void)writeCode
{
NSLog(@"writing...");
}
- (
void)debugCode
{
NSLog(@"debug...");
}
- (
void)report
{
NSLog(@"report");
}
@end
//
// Programmer.h
// OC3_协议关键字
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@protocol Programmer <NSObject>
@required//必须实现的方法(缺省)
- (
void)writeCode;
- (
void)debugCode;
- (
void)report;
@optional//可选实现的方法
- (
void)eat;
- (
void)drink;
@end
//
// main.m
// OC3_协议关键字
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Student.h"
int main(
int argc,
const char *
argv[]) {
@autoreleasepool {
// insert code here...
//NSLog(@"Hello, World!");
Student *xiaoHua =
[[Student alloc] init];
[xiaoHua report];
//[xiaoHua eat];
}
return 0;
}
转载于:https://www.cnblogs.com/0515offer/p/4598476.html
相关资源：SFF-8472协议中文版
