//
// Calulator.h
// OC4_遵守多个协议
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Adder.h"
#import "Subber.h"
#import "Multter.h"
#import "Divver.h"
//遵守多个协议, 协议之间用逗号隔开
@interface Calulator : NSObject <Adder,Subber,Multter,Divver>
@end
//
// Calulator.m
// OC4_遵守多个协议
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Calulator.h"
@implementation Calulator
+ (
int)addA:(
int)a andB:(
int)b
{
return a+
b;
}
+ (
int)subA:(
int)a andB:(
int)b
{
return a-
b;
}
+ (
int)divA:(
int)a andB:(
int)b
{
return a/
b;
}
+ (
int)mulA:(
int)a andB:(
int)b
{
return a*
b;
}
@end
//
// Divver.h
// OC4_遵守多个协议
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@protocol Divver <NSObject>
+ (
int)divA:(
int)a andB:(
int)b;
@end
//
// Multter.h
// OC4_遵守多个协议
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@protocol Multter <NSObject>
+ (
int)mulA:(
int)a andB:(
int)b;
@end
//
// Subber.h
// OC4_遵守多个协议
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@protocol Subber <NSObject>
+ (
int)subA:(
int)a andB:(
int)b;
@end
//
// Adder.h
// OC4_遵守多个协议
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@protocol Adder <NSObject>
+ (
int)addA:(
int)a andB:(
int)b;
@end
//
// main.m
// OC4_遵守多个协议
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Calulator.h"
int main(
int argc,
const char *
argv[]) {
@autoreleasepool {
// insert code here...
NSLog(
@"add = %i", [Calulator addA:
3 andB:
5]);
NSLog(@"mul = %i", [Calulator mulA:
5 andB:
10]);
}
return 0;
}
转载于:https://www.cnblogs.com/0515offer/p/4598507.html
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