Objective-C 数组

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//
// Book.h
// OCdemo-04-01-shuzu
//
// Created by lanou3g on 15/10/12.
// Copyright (c) 2015年 Object. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Book : NSObject
{
    NSString *_bookName;
    NSInteger _num;
}

-(void)setBookName:(NSString *)bookName;
-(void)setNum:(NSInteger)num;

-(NSString *)getBookName;
-(NSInteger)getNum;

//初始化方法
-(instancetype)initWithBookName:(NSString *)bookName
                            num:(NSInteger)num;
//便利构造器
+(Book *)bookWithBookName:(NSString *)bookName
                      num:(NSInteger)num;
@end

------------------------------------------------------------------------------

//
// Book.m
// OCdemo-04-01-shuzu
//
// Created by lanou3g on 15/10/12.
// Copyright (c) 2015年 Object. All rights reserved.
//

#import "Book.h"

@implementation Book

-(void)setBookName:(NSString *)bookName{
    _bookName = bookName;
}
-(void)setNum:(NSInteger)num{
    _num = num;
}

-(NSString *)getBookName{
    return _bookName;
}
-(NSInteger)getNum{
    return _num;
}

//初始化方法
-(instancetype)initWithBookName:(NSString *)bookName
                            num:(NSInteger)num{
    self = [super init];
    if (self) {
        _bookName = bookName;
        _num = num;
    }
    return self;
}
//便利构造器
+(Book *)bookWithBookName:(NSString *)bookName
                            num:(NSInteger)num{
    Book *book = [[Book alloc] initWithBookName:bookName num:num];
    return book;
}

@end
------------------------------------------------------------------------------------------------

//
// Library.h
// OCdemo-04-01-shuzu
//
// Created by lanou3g on 15/10/12.
// Copyright (c) 2015年 Object. All rights reserved.
//

#import <Foundation/Foundation.h>

@class Book;
@interface Library : NSObject
{
    NSString *_admin; //管理员
    NSMutableArray *_bookArray; //存放所有图书的数组

}

//添加书籍
-(void)addBookToArray:(Book *)book;

//展示所有图书信息
-(void)showBookList;

//删除书籍
-(void)deleteBook:(Book *)book;

//根据书名查找书籍
-(Book *)selectBookWithBookName:(NSString *)bookName;

//修改图书
-(void)changeBook:(Book *)book
          newName:(NSString *)newName;

@end

----------------------------------------------------------------------------------------------------

//
// Library.m
// OCdemo-04-01-shuzu
//
// Created by lanou3g on 15/10/12.
// Copyright (c) 2015年 Object. All rights reserved.
//

#import "Library.h"
#import "Book.h"

@implementation Library

-(instancetype)init{
    self = [super init];
    if (self) {
        //初始化图书数组
        _bookArray = [NSMutableArray array];
    }
    return self;
}

//添加书籍
-(void)addBookToArray:(Book *)book{
    [_bookArray addObject:book];
}

//展示所有图书信息
-(void)showBookList{
    for (Book *book in _bookArray) {
        NSLog(@"%@",[book getBookName]);
    }
}

//删除书籍
-(void)deleteBook:(Book *)book{
    [_bookArray removeObject:book];
}

//根据书名查找书籍
-(Book *)selectBookWithBookName:(NSString *)bookName{
    for (Book *book in _bookArray) {
        if ([[book getBookName] isEqualToString:bookName]) {
            return book;
        }
    }
    return nil;
}

//修改图书
-(void)changeBook:(Book *)book
          newName:(NSString *)newName{
    NSInteger index = [_bookArray indexOfObject:book];
    [book setBookName:newName];
    [_bookArray replaceObjectAtIndex:index withObject:book];

}

@end
-------------------------------------------------------------------------------------------------------------------

//
// main.m
// OCdemo-04-01-shuzu
//
// Created by lanou3g on 15/10/12.
// Copyright (c) 2015年 Object. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "Book.h"
#import "Library.h"

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

        /*

        //   NSArray 不可变数组
        //   存储 NSObject 对象

        //1.创建一个数组
        //使用初始化方法
        NSArray *array1 = [[NSArray alloc] initWithObjects:@"晓彤", @"石峰",@"jianjian",@"小yi",@"雯琦",nil];

        //使用类方法
        NSArray *array2 = [NSArray arrayWithObjects:@"见见",@"豪豪",@"帅帅",@"郭隆基",@"lirui", nil];

        //使用自面量方法
        NSArray *array3 = @[@"haoge",@"yangge",@"boge",@"pengge",@"ruirui",@"xiaoming"];

        NSLog(@"%@",array1);
        NSLog(@"%@",array2);
        NSLog(@"%@",array3);

        //2.数组查找
        //数组遍历
        //通过下标，查找对象
        for (int i = 0; i < [array1 count]; i++) {
//            NSLog(@"%@",[array1 objectAtIndex:i]);
            NSLog(@"%@",array1[i]);
        }
        //通过对象，查找下标
        NSString *str = @"ruirui";
        NSUInteger index = [array3 indexOfObject:str];
        NSLog(@"%lu",index);
        //-------------------------------------------------------------------------------------

        //    NSMutableArray 可变数组
        NSMutableArray *marray1 = [NSMutableArray arrayWithObjects:@"xiaohong",@"xiaofan",@"caicai",@"weige",@"daming",@"mingming" ,nil];
        NSLog(@"%@",marray1);

        //2.添加、插入元素
        //添加
        [marray1 addObject:@"dahuang"];
        NSLog(@"%@",marray1);

        //插入
        [marray1 insertObject:@"jinjin" atIndex:0];
        NSLog(@"%@",marray1);

        //3,删除
        //删除指定位置的对象
        [marray1 removeObjectAtIndex:0];
        NSLog(@"%@",marray1);
        //删除指定对象
        [marray1 removeObject:@"dahuang"];
        NSLog(@"%@",marray1);
        //删除最后一个对象
        [marray1 removeLastObject];
        NSLog(@"%@",marray1);
        //删除所有对象
        [marray1 removeAllObjects];
        NSLog(@"%@",marray1);

        //4.替换
//        NSMutableArray *mArray2 = @[@"阿鲁",@"任雨生",@"任雨婷",@"进进",@"博文",@"小强"];
        NSMutableArray *mArray2 = [NSMutableArray arrayWithObjects:@"阿鲁",@"任雨生",@"任雨婷",@"进进",@"博文",@"小强", nil];
        [mArray2 replaceObjectAtIndex:0 withObject:@"lol"];
        NSLog(@"%@",mArray2);
        for (int i = 0; i < [mArray2 count]; i++) {
            NSLog(@"%@",mArray2[i]);
        }

        //5.交换指定位置的元素
        [mArray2 exchangeObjectAtIndex:0 withObjectAtIndex:1];
        for (int i = 0; i < [mArray2 count]; i++) {
            NSLog(@"%@",mArray2[i]);
        }
        //另一种遍历方式
        for (NSString *str in mArray2) { // 不确定类型，写 id
            NSLog(@"%@",str);
        }

        */

        Book *book1 = [[Book alloc] initWithBookName:@"C语言" num:1001];
        Book *book2 = [[Book alloc] initWithBookName:@"OC" num:1002];
        Book *book3 = [[Book alloc] initWithBookName:@"UI" num:1003];

        Library *library = [[Library alloc]init];
        [library addBookToArray:book1];
        [library addBookToArray:book2];
        [library addBookToArray:book3];

        //展示所有图书信息
        [library showBookList];

        //删除书籍
        [library deleteBook:book3];
        [library showBookList];

        //根据书名查找书籍
        Book *book4 = [library selectBookWithBookName:@"C语言"];
        NSLog(@"name = %@,num = %ld",[book4 getBookName],[book4 getNum]);

        //修改图书
        [library changeBook:book2 newName:@"Objective-C"];
        [library showBookList];

        // NSNumber 数值对象
        //使用类方法创建对象
        NSNumber *number1 = [NSNumber numberWithInt:18];
        NSMutableArray *array = [NSMutableArray array];
        [array addObject:number1];
        NSLog(@"%@",array);

        [array addObject:@20];
        NSLog(@"%@",array);

        //使用字面量方法创建对象
        NSNumber *number2 = @30;
        [array addObject:number2];
        NSLog(@"%@",array);

    }
    return 0;
}

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