ios学习笔记－－（oc基础4）

NSArray 和NSMutableArray

NSArray 和NSMutableArray 的一些基本用法

根据一个题目：通过所学知识对西游记师徒进行情景编码，按照收徒的先后顺序依次加入取经团队，可以通过姓名，年龄，本领进行排序。例如，猪悟能可以离开团队回高老庄。唐僧因误会可以赶走孙悟空等等。

main.m
//
//  main.m
//  oc_8.5_1
//
//  Created by dq on 15/8/5.
//  Copyright (c) 2015年 dq. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "Prentice.h"
#import "Tangceng.h"
int main(int argc, const char * argv[]) {
@autoreleasepool {
//     作业：通过所学知识对西游记师徒进行情景编码，按照收徒的先后顺序依次加入取经团队，可以通过姓名，年龄，本领进行排序。例如，猪悟能可以离开团队回高老庄。唐僧因误会可以赶走孙悟空等等。
Tangceng *tangceng = [Tangceng personWithName:@"tangceng" andAge:30 andAbility:1];
NSMutableArray *qujingTeam = [NSMutableArray arrayWithObject:tangceng];
Prentice *sunwukong = [Prentice personWithName:@"sunkukong" andAge:1500 andAbility:100];
Prentice *zhupajie = [Prentice personWithName:@"zhupajie" andAge:1800 andAbility:70];
Prentice *shaheshang = [Prentice personWithName:@"shaheshang" andAge:1600 andAbility:60];
//孙悟空 猪八戒 沙和尚 分别加入取经队伍
[qujingTeam addObject:sunwukong];
[qujingTeam addObject:zhupajie];
[qujingTeam addObject:shaheshang];
//排序
//1利用选择器对年龄排序
NSLog(@"按照姓名升序输出（利用选择器）");
[qujingTeam sortUsingSelector:@selector(compareWithname:)];
for (Person *per in qujingTeam) {
NSLog(@"%@",per);
}

//利用特征对年龄排序
NSSortDescriptor *sortdes = [NSSortDescriptor sortDescriptorWithKey:@"age" ascending:YES];
[qujingTeam sortUsingDescriptors:@[sortdes]];
NSLog(@"按照年龄特征升序（利用特征）");
for (Person *per in qujingTeam) {
NSLog(@"%@",per);
}
//利用代码块排序
[qujingTeam sortUsingComparator:^NSComparisonResult(Person * obj1, Person * obj2) {
if (obj1.ability > obj2.ability) {
return NSOrderedDescending;
}
else if (obj1.ability < obj2.ability)
{
return NSOrderedAscending;
}
else
{
return NSOrderedSame;
}
}];
NSLog(@"按照代码块生序排序（利用代码块）");
//利用数组转枚举 快速便利枚举
NSEnumerator *enumerator = [qujingTeam objectEnumerator];
id per;
while (per = [enumerator nextObject]) {
NSLog(@"%@",per);
}

//悟空被赶走
[qujingTeam removeObject:sunwukong];
NSLog(@"悟空被赶走了  队伍只剩下:");
for (Person *per in qujingTeam) {
NSLog(@"%@",per.name);
}
//八戒回高老庄了
[qujingTeam removeObject:zhupajie];
NSLog(@"八戒回高老庄  队伍只剩下:");
for (Person *per in qujingTeam) {
NSLog(@"%@",per.name);
}

}
return 0;
}
person.h

//  Person.h
//  oc_8.5_1
//
//  Created by dq on 15/8/5.
//  Copyright (c) 2015年 dq. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Person : NSObject
{
NSString *_name;
int _age;
int _ability;
}

@property(nonatomic,strong) NSString *name;
@property(nonatomic,assign) int age;
@property(nonatomic,assign) int ability;
/**
*  自定义初始化参数
*
*  @param aName    姓名
*  @param aAge     年龄
*  @param aAbility 能力值 满分��
*
*  @return 对象
*/
-(instancetype)initWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility;
/**
*  便利构造器
*
*/
+(instancetype)personWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility;
/**
*  选择器 排序 姓名的比较方法
*
*  @param other 比较的对象
*
*  @return 返回比较的结果
*/
-(NSComparisonResult)compareWithname:(Person *)other;
@end
person.m
//
//  Person.m
//  oc_8.5_1
//
//  Created by dq on 15/8/5.
//  Copyright (c) 2015年 dq. All rights reserved.
//

#import "Person.h"

@implementation Person
-(instancetype)initWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility
{
if (self == [super init]) {
_name = aName;
_age = aAge;
_ability = aAbility;
}
return self;
}
+(instancetype)personWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility
{
Person *person = [[Person alloc]initWithName:aName andAge:aAge andAbility:aAbility];
return person;
}
-(NSComparisonResult)compareWithname:(Person *)other
{
return [self.name compare:other.name];
}
- (NSString *)description
{
return [NSString stringWithFormat:@"我是%@ 年龄%d 能力值%d",_name,_age,_ability];
}
@end

Tanceng.h
//
//  Tangceng.h
//  oc_8.5_1
//
//  Created by dq on 15/8/5.
//  Copyright (c) 2015年 dq. All rights reserved.
//

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

@interface Tangceng : Person

@end
Tangceng.m
//
//  Tangceng.m
//  oc_8.5_1
//
//  Created by dq on 15/8/5.
//  Copyright (c) 2015年 dq. All rights reserved.
//

#import "Tangceng.h"

@implementation Tangceng

@end
Prentice.h
//
//  Prentice.h
//  oc_8.5_1
//
//  Created by dq on 15/8/5.
//  Copyright (c) 2015年 dq. All rights reserved.
//

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

@interface Prentice : Person
//@property(nonatomic,strong) NSString *name;
//@property(nonatomic,assign) int age;
//@property(nonatomic,assign) int ability;
//-(instancetype)initWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility;
//+(instancetype)prenticeWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility;
@end
Prentice.m
//
//  Prentice.m
//  oc_8.5_1
//
//  Created by dq on 15/8/5.
//  Copyright (c) 2015年 dq. All rights reserved.
//

#import "Prentice.h"

@implementation Prentice
//-(instancetype)initWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility
//{
//    if (self == [super init]) {
//        _name = aName;
//        _age = aAge;
//        _ability = aAbility;
//    }
//    return self;
//}
//+(instancetype)prenticeWithName:(NSString *)aName andAge:(int)aAge andAbility:(int)aAbility
//{
//    Prentice *prentice = [[Prentice alloc]initWithName:aName andAge:aAge andAbility:aAbility];
//    return prentice;
//}
@end