OC6_类方法

//
//  Dog.h
//  OC6_类方法
//
//  Created by zhangxueming on 15/6/9.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Dog : NSObject
{
    NSString *_name;
    NSInteger _age;
}

+ (id)dogCreate;

- (NSString *)name;
- (NSInteger)age;

- (void)setName:(NSString *)name andAge:(NSInteger)age;

@end

//
//  Dog.m
//  OC6_类方法
//
//  Created by zhangxueming on 15/6/9.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import "Dog.h"

@implementation Dog

+ (id)dogCreate
{
    Dog *dog = [[Dog alloc] init];
    return dog;
}

- (NSString *)name
{
    return _name;
}

- (NSInteger)age
{
    return _age;
}

- (void)setName:(NSString *)name andAge:(NSInteger)age
{
    _name = name;

    _age = age;
}

@end

//
//  main.m
//  OC6_类方法
//
//  Created by zhangxueming on 15/6/9.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "Dog.h"

int main(int argc, const char * argv[]) {
    @autoreleasepool {

        Dog *xiaoBai = [Dog dogCreate];

         //Dog *dog = [[Dog alloc] init];

        [xiaoBai setName:@"小白" andAge:];
        NSLog(@"name = %@ age = %li", [xiaoBai name], [xiaoBai age]);
    }
    return ;
}