蓝鸥iOS从零基础到精通就业－OC语言入门 类目和延展1

//
//  NSMutableArray+AddTwoObject.h
//  类目和延展
//
//  Created by 蓝鸥 on 16/8/3.
//  Copyright © 2016年 luanbin. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSMutableArray (AddTwoObject)

-(void)addTwoObject:(NSString *)str1 str2:(NSString *)str2;

@end

//
//  NSMutableArray+AddTwoObject.m
//  类目和延展
//
//  Created by 蓝鸥 on 16/8/3.
//  Copyright © 2016年 luanbin. All rights reserved.
//

#import "NSMutableArray+AddTwoObject.h"

@implementation NSMutableArray (AddTwoObject)

-(void)addTwoObject:(NSString *)str1 str2:(NSString *)str2
{
[self addObject:str1];
[self addObject:str2];
}

@end

//
//  NSString+OtherMethod.h
//  类目和延展
//
//  Created by 蓝鸥 on 16/8/3.
//  Copyright © 2016年 luanbin. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSString (OtherMethod)

-(NSString *)addSix;

@end

//
//  NSString+OtherMethod.m
//  类目和延展
//
//  Created by 蓝鸥 on 16/8/3.
//  Copyright © 2016年 luanbin. All rights reserved.
//

#import "NSString+OtherMethod.h"

@implementation NSString (OtherMethod)

-(NSString *)addSix
{
return  [self stringByAppendingString:@"666"];
}
@end