#import <Foundation/Foundation.h> @interface AddressCard : NSObject -(void)setName:(NSString *) theName; -(void)setEmail:(NSString *) theEmail; -(void)setfirstName:(NSString *)first lastName:(NSString *)last; //联系4 -(NSString *)firstName; -(NSString *)lastName; -(NSString *)name; -(NSString *)email; //系统生成访问器方法 @property (copy,nonatomic) NSString *name,*email,*firstName,*lastName; -(void)print; -(void)setName:(NSString *)theName andEmail:(NSString *) theEmail; @end
//
// AddressCard.m
// OC15数字字符串和集合
//
// Created by Zoujie on 15/10/6.
// Copyright ? 2015年 Zoujie. All rights reserved.
//
#import "AddressCard.h"
@implementation AddressCard
{
NSString *name;
NSString *email;
}
@synthesize name,email;
-(void)setName:(NSString *)theName
{
// name = [NSString stringWithString:theName]; 老方法
if (name != theName)
name = [NSString stringWithString:theName];//if语句测试发送到访问器方法的对象是否已经存在于实例变量中，如果传入的是同一个对象，就不需要再进行设置。
}
-(void)setEmail:(NSString *)theEmail
{
if (email != theEmail)
email = [NSString stringWithString:theEmail];
}
//练习4
-(void)setfirstName:(NSString *)first lastName:(NSString *)last
{
if (_firstName != first){
_firstName = [NSString stringWithString:first];
}
if (_lastName != last)
_lastName = [NSString stringWithString:last];
}
-(NSString *)name
{
return name;
}
-(NSString *)email
{
return email;
}
-(void)setName:(NSString *)theName andEmail:(NSString *)theEmail
{
self.name = theName;
self.email = theEmail;
}
-(void)print
{
NSLog(@"=================================");
NSLog(@"| |");
NSLog(@"|%-31s|",[name UTF8String]);//%-31s 表示用31个字符的字段宽度左对齐打印UTF8 C-字符串 修饰结果的作用
NSLog(@"|%-31s|",[email UTF8String]);
NSLog(@"|%-31s|",[_lastName UTF8String]);
NSLog(@"|%-31s|",[_firstName UTF8String]);
NSLog(@"| |");
NSLog(@"| |");
NSLog(@"=================================");
}
-(NSComparisonResult)compareNames:(id)element
{
return [name compare:[element name]];
}
@end
// // AddressBook.h // OC15数字字符串和集合 // // Created by Zoujie on 15/10/6. // Copyright ? 2015年 Zoujie. All rights reserved. // #import <Foundation/Foundation.h> #import "AddressCard.h" @interface AddressBook : NSObject @property (nonatomic,copy) NSString *bookName; @property (nonatomic,strong) NSMutableArray *book; -(instancetype) initWithName:(NSString *)name; -(void) addCard:(AddressCard *) theCard; -(NSInteger) entries;//获取卡片(AddressCard)数量 -(void)list; //通过名称查找地址卡片--假定精确匹配 -(AddressBook *) lookup:(NSString *) theName; //删除 -(void) removeCard:(AddressCard *)theCard; //排序 -(void)sort; @end
//
// AddressBook.m
// OC15数字字符串和集合
//
// Created by Zoujie on 15/10/6.
// Copyright ? 2015年 Zoujie. All rights reserved.
//
#import "AddressBook.h"
@implementation AddressBook
@synthesize bookName,book;
//设置一个AddressBook的名称和一个空的AddressBook
-(instancetype)initWithName:(NSString *)name
{
self = [super init];
if (self){
bookName = [NSString stringWithString:name];
book = [NSMutableArray array];
}
return self;
}
-(instancetype)init
{
return [self initWithName:@"NoName"];
}
-(void) addCard:(AddressCard *)theCard
{
[book addObject:theCard];
}
-(NSInteger)entries
{
return [book count];
}
-(void)list
{
NSLog(@"======== Contents of :%@ ========",bookName);
for (AddressCard *theCard in book)//快速枚举 for( in)
{
NSLog(@"%-20s %-32s",[theCard.name UTF8String],[theCard.email UTF8String]);
}
NSLog(@"=================================================");
}
#pragma mark 查找
-(AddressCard *)lookup:(NSString *)theName
{
for (AddressCard *nextCard in book)
{
if ([nextCard.name caseInsensitiveCompare:theName]==NSOrderedSame)
return nextCard;
}
return nil;
// NSIndexSet
NSUInteger result =[book indexOfObjectPassingTest:^BOOL(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([[obj name] caseInsensitiveCompare:theName] == NSOrderedSame){
* stop = YES;//查找一个匹配，一个就足够了
return YES;
}
else
return NO;//继续查找
}];
// 如果找到一个匹配，则查看它
if (result != NSNotFound)//只有一个元素
return book[result];
else
return nil;
}
#pragma mark 删除
-(void)removeCard:(AddressCard *)theCard
{
[book removeObjectIdenticalTo:theCard];//方法会删除和参数所有相同的对象。但只有一个对象在数组中出现多次，才会出现这个问题
// [self isEqual:theCard];
}
#pragma mark 排序
-(void)sort
{
// [book sortUsingSelector:@selector(compareNames:)];//需再AddressCard类中添加compareNames 方法 指定selector方法的比较器对数组排序
// 块方法直接排序，不用修改AddressCard类
[book sortUsingComparator:^NSComparisonResult(id _Nonnull obj1, id _Nonnull obj2) {
return [[obj1 name] compare:[obj2 name]];
}];
}
@end
//
// ViewController.h
// OC15数字字符串和集合
//
// Created by Zoujie on 15/10/5.
// Copyright ? 2015年 Zoujie. All rights reserved.
//
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
//使用Printint类别，将打印方法添加到NSSet
@interface NSSet (Printing)
-(void) print;
@end
@implementation NSSet (Printing)
-(void) print
{
printf("{");
for (NSNumber *element in self)
printf(" %li ",(long)[element integerValue]);
printf("} \n");
}
@end
@interface NSDate (ElapsedDays)
-(unsigned long) elapsedDays:(NSDate *) theDate;
@end
@implementation NSDate (ElapsedDays)
-(unsigned long) elapsedDays:(NSDate *)theDate
{
NSDate *date = [NSDate date];
date = theDate;
return date;
}
@end
@interface ViewController : UIViewController
@end
//
// ViewController.m
// OC15数字字符串和集合
//
// Created by Zoujie on 15/10/5.
// Copyright ? 2015年 Zoujie. All rights reserved.
//
#import "ViewController.h"
#import "AddressCard.h"
#import "AddressBook.h"
//#import "NSSet(Printing)"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
// [self studyNSNumber];
// 不可变字符串
// [self studyNSString];
// 可变字符串
// [self studyNSMutableNSString];
// 数组
// [self studyNSArray];
// 地址薄制作
// [self makeAddressCard];
// [self makeAddressCardTWO];
// AddressBook测试
// [self textAddressBook];
// 数组排序
// [self sortArray];
// NSValue类
// [self studyNSValue];
// NSDictionary
// [self studyNSDictionary];
[self studyNSSet];
}
#pragma mark NSNumber
-(void)studyNSNumber
{
//常用基本数据类型int,float,double,long并不是对象
NSNumber *myNumber,*floatNumber,*intNumber;
NSInteger myInt;//NSInterger不是一个对象，而是基本数据类型的typedef
// integer型取值
intNumber = [NSNumber numberWithInt:10];
intNumber = @10;//字面量语法
myInt = [intNumber integerValue];
NSLog(@"%li",(long)myInt);
// long型取值
myNumber = [NSNumber numberWithLong:0xabcdef];
NSLog(@"%lx",[myNumber longValue]);
// char
myNumber = [NSNumber numberWithChar:‘X‘];
myNumber = @‘X‘;
NSLog(@"%c",[myNumber charValue]);
// float
floatNumber = [NSNumber numberWithFloat:10.00];
floatNumber = @10.00f;
NSLog(@"%f",[floatNumber floatValue]);
// double
myNumber = [NSNumber numberWithDouble:12345e+15];
myNumber = @12345e+15;
NSLog(@"%lg",[myNumber doubleValue]);
//发生错误
NSLog(@"%li",(long)[myNumber integerValue]);
// 验证两个Number是否相等
if ([intNumber isEqualToNumber:floatNumber]==YES)
{
NSLog(@"Number is Equal");
}else
{
NSLog(@"Numbers are not equal");
}
if ([intNumber compare:myNumber]== NSOrderedAscending){
NSLog(@"First Number is less than second");
}
/*
// 注意 ****************
NSNumber *yourNumber = [[NSNumber alloc]initWithInt:20];
[yourNumber initWithInt:10000];//直接修改会引起程序崩溃，所有数字对象都必须是新创建的;
*/
//NSDecimalNumber 提供一些四则运算方法
}
#pragma mark 字符串
-(void)studyNSString
{
//格式字符 %@ 来显示NSString对象
NSString *str = @"Programming is fun";
NSLog(@"%@",str);
// 不可变字符串的基本处理方式
NSString *str1 = @"This is String A";
NSString *str2 = @"This is String B";
NSString *res;
NSComparisonResult compareResult;
//计算字符串中得字符
NSLog(@"LengTh of Str1:%lu",[str1 length]);
// 将一个字符串复制到另一个字符串
res = [NSString stringWithString:str1];
NSLog(@"copy:%@",res);
// 将一个字符串复制到另一个字符串的末尾
str2 = [str1 stringByAppendingString:str2];
NSLog(@"%@",str2);
// 验证两个字符串是否相等
if ([str1 isEqualToString:res]==YES)
{
NSLog(@"str1 = res");
}
else
{
NSLog(@"str1 != res ");
}
// 验证一个字符串是否小于，等于或大于另一个字符串
compareResult = [str1 compare:str2];
if (compareResult == NSOrderedAscending)
NSLog(@"str1 < str2");
else if (compareResult == NSOrderedSame)
NSLog(@"str1 = str2");
else if (compareResult == NSOrderedDescending)
NSLog(@"str1 > str2");
// 将字符串转换为大写
res = [str1 uppercaseString];
NSLog(@"Uppercase conversion:%s",[res UTF8String]);
// 将字符串转换为小写
res = [str1 lowercaseString];
NSLog(@"Lowercase conversion:%@",res);
NSLog(@"Orugunal string:%@",str1);
NSRange subRange;
// 从字符串中提取前3个字符
res = [str1 substringToIndex:3];
NSLog(@"Firest 3 chars of str1 %@",res);
// 提取从索引5开始直到结尾的子字符串
res = [str1 substringFromIndex:5];
NSLog(@"Chars from index 5 of str1:%@",res);
// 提取从索引5开始到索引13的子字符串（6个字符）
res = [[str1 substringFromIndex:8] substringToIndex:6];
NSLog(@"Chars from index 8 through 13:%@",res);
// 更简单的方法
res = [str1 substringWithRange:NSMakeRange(8, 6)];
NSLog(@"Chars from index 8 through 13:%@",res);
// 从另一个字符串中查找一个字符串
subRange = [str1 rangeOfString:@"String A"];
NSLog(@"String is at index %lu, length is %lu",subRange.location,subRange.length);
subRange = [str1 rangeOfString:@"String B"];
if (subRange.location == NSNotFound)
NSLog(@"String not found");
else
NSLog(@"String is at index %lu,length is %lu",subRange.location,subRange.length);
// 常见的NSString方法
// NSString stringWithContentsOfFile:<#(nonnull NSString *)#> encoding:<#(NSStringEncoding)#> error:<#(NSError * _Nullable __autoreleasing * _Nullable)#>
// 创建一个新字符串，并将其设置为path指定的文件的内容，使用字符编码enc，如果非零,则返回err中得错误
// [NSString stringWithContentsOfURL:<#(nonnull NSURL *)#> encoding:<#(NSStringEncoding)#> error:<#(NSError * _Nullable __autoreleasing * _Nullable)#>]
// 创建一个新字符串，并将其设置URL的内容，使用字符编码enc,如果非零，则返回err中得错误
// [NSString string];创建一个新的空字符串
// str1 compare:<#(nonnull NSString *)#>
// 比较两个字符串
}
#pragma mark 可变字符串
-(void)studyNSMutableNSString
{
NSString *str1 = @"This is String A";
NSString *search,*replace;
NSMutableString *mstr;
NSRange substr;
//从不可变字符串创建可变字符串
mstr = [NSMutableString stringWithString:str1];
NSLog(@"%@",mstr);
//插入字符
[mstr insertString:@"mutable" atIndex:7];
NSLog(@"%@",mstr);
//插入末尾进行有效拼接
[mstr insertString:@" and string B" atIndex:[mstr length]];
NSLog(@"%@",mstr);
//直接使用appendString
[mstr appendString:@" and string C"];
NSLog(@"%@",mstr);
//根据范围删除子字符串
[mstr deleteCharactersInRange:NSMakeRange(16, 13)];
NSLog(@"%@",mstr);
//查找然后将其删除
substr = [mstr rangeOfString:@"string B and "];
if (substr.location != NSNotFound)
{
[mstr deleteCharactersInRange:substr];
NSLog(@"%@",mstr);
}
//直接设置为可变的字符串
[mstr setString:@"This is string A"];
NSLog(@"%@",mstr);
//替换一些字符
[mstr replaceCharactersInRange:NSMakeRange(8, 8) withString:@"a mutable string"];
NSLog(@"%@",mstr);
// 查找和替换
search = @"This is";
replace = @"An example of ";
substr = [mstr rangeOfString:search];
if (substr.location != NSNotFound)
{
[mstr replaceCharactersInRange:substr withString:replace];
NSLog(@"%@",mstr);
}
// 查找和替换所有的匹配项
search = @"a";
replace = @"X";
substr = [mstr rangeOfString:search];
while (substr.location != NSNotFound)
{
[mstr replaceCharactersInRange:substr withString:replace];
substr = [mstr rangeOfString:search];
}
NSLog(@"%@",mstr);
// 如果需要把字符串分解为语言符号 ，可以查看NSScanner类
[NSMutableString stringWithCapacity:10];//创建一个初始包含10个字符的字符串
[[NSMutableString alloc]setString:mstr];//将字符串设置为mstr
[[NSMutableString alloc] replaceOccurrencesOfString:search withString:replace options:24 range:NSMakeRange(0, [mstr length])];//根据选项options,在指定范围range中用replace替换所有的search.
}
#pragma mark NSArray
-(void)studyNSArray
{
int i ;
// 创建一个包含月份的数组
NSArray *monthName = [NSArray arrayWithObjects:@"Januay",@"February",@"March",@"April",@"May",@"June",@"July",@"August",@"September",@"October",@"Novermber",@"December", nil];
// 列出数组中得所有元素
NSLog(@"Month Name");
NSLog(@"==========");
for (i=0;i<12;i++)
{
NSLog(@"%i:%@",i+1,monthName[i]);
}
printf("\n");
NSArray *monthNames = @[@"Januay",@"February",@"March",@"April",@"May",@"June",@"July",@"August",@"September",@"October",@"Novermber",@"December"];
NSLog(@"Month Names");
NSLog(@"==========");
for (i=0;i<12;i++)
{
NSLog(@"%i:%@",i+1,monthNames[i]);
}
NSMutableArray *numbers = [NSMutableArray array];
for (i = 0;i<10;i++)
{
numbers[i][email protected](i);
}
// 遍历数组于显示其值
for (i=0;i<10;i++)
{
NSLog(@"%@",numbers[i]);
}
// 使用带有%@格式的NSlog显示
NSLog(@"==========USing a single NSLog");
NSLog(@"%@",numbers);
}
#pragma mark AddressCard 1
-(void)makeAddressCard
{
NSString *name = @"Zou JieMac";
NSString *email = @"[email protected]";
AddressCard *card1 = [[AddressCard alloc]init];
[card1 setName:name];
[card1 setEmail:email];
[card1 print];
}
#pragma mark AddressCard 2
-(void)makeAddressCardTWO
{
NSString *aName = @"Zou JieMac";
NSString *aEmail = @"[email protected]";
NSString *bName = @"Chen wenTingSB";
NSString *bEmail = @"[email protected]";
AddressCard *cardZ = [[AddressCard alloc]init];
AddressCard *cardC = [[AddressCard alloc]init];
[cardZ setName:aName andEmail:aEmail];
[cardC setName:bName andEmail:bEmail];
[cardZ print];
[cardC print];
}
#pragma mark AddressBook
-(void)textAddressBook
{
NSString *aName = @"Zoujie Mac";
NSString *aEmail = @"[email protected]";
NSString *bName = @"Huangshuxian UI";
NSString *bEmail = @"[email protected]";
NSString *cName = @"Chenwenting SB";
NSString *cEmail = @"[email protected]";
AddressCard *card1 = [AddressCard new];
AddressCard *card2 = [AddressCard new];
AddressCard *card3 = [AddressCard new];
// AddressCard *card4 = [AddressCard new];
//创建一个新的地址薄
AddressBook *myBook = [[AddressBook alloc]initWithName:@"Love for Jie AddressBook"];
NSLog(@"Entries in address book after creation:%li",[myBook entries]);
// 创建3个地址卡片
[card1 setName:aName andEmail:aEmail];
[card2 setName:bName andEmail:bEmail];
[card3 setName:cName andEmail:cEmail];
// 将地址卡片添加到地址薄
[myBook addCard:card1];
[myBook addCard:card2];
[myBook addCard:card3];
NSLog(@"Enter in address book after adding cards:%li",[myBook entries]);
// 列出地址薄所有条目
[myBook list];
// 通过名字查找一个人
NSLog(@"lookup Huangshuxian");
AddressCard *myCard;
myCard = [myBook lookup:@"Huangshuxian UI"];
if (myCard != nil)
{
[myCard print];
}
else
NSLog(@"Not found");
NSLog(@"lookup hanyifei");
myCard = [myBook lookup:@"hanyifei"];
if (myCard != nil)
{
[myCard print];
}
else
NSLog(@"Not found");
// 从电话薄中删除
myCard =[myBook lookup:@"Chenwenting SB"];
[myBook removeCard:myCard];
[myBook list];
}
-(void)sortArray
{
NSString *aName = @"Zoujie Mac";
NSString *aEmail = @"[email protected]";
NSString *bName = @"Huangshuxian UI";
NSString *bEmail = @"[email protected]";
NSString *cName = @"Chenwenting SB";
NSString *cEmail = @"[email protected]";
AddressCard *card1 = [AddressCard new];
AddressCard *card2 = [AddressCard new];
AddressCard *card3 = [AddressCard new];
// AddressCard *card4 = [AddressCard new];
//创建一个新的地址薄
AddressBook *myBook = [[AddressBook alloc]initWithName:@"Love for Jie AddressBook"];
NSLog(@"Entries in address book after creation:%li",[myBook entries]);
// 创建3个地址卡片
[card1 setName:aName andEmail:aEmail];
[card2 setName:bName andEmail:bEmail];
[card3 setName:cName andEmail:cEmail];
// 将地址卡片添加到地址薄
[myBook addCard:card1];
[myBook addCard:card2];
[myBook addCard:card3];
NSLog(@"Enter in address book after adding cards:%li",[myBook entries]);
// 列出地址薄所有条目
[myBook list];
[myBook sort];
[myBook list];
// 常用的NSArray方法
NSArray *arrayText;
[arrayText containsObject:myBook];//确定数组中是否包含对象
[arrayText count];//数组元素个数
[arrayText lastObject];//返回数组最后的对象
[arrayText objectAtIndex:1];//存储在元素1的对象
[arrayText makeObjectsPerformSelector:@selector(textArray)];//将selector指示的消息发送给数组中得每个元素
NSMutableArray *MutableArrayText;
[MutableArrayText initWithCapacity:2];//指定初始的size给新的数组
[MutableArrayText addObject:myBook];//对象添加到数组的末尾
[MutableArrayText insertObject:card1 atIndex:3];//将对象插入到数组的序号3的位置
[MutableArrayText replaceObjectAtIndex:1 withObject:card2];//将序号1的对象用card2替换
[MutableArrayText removeObjectAtIndex:2];//删除数组序号为2的元素
}
-(void)textArray
{
return;
}
#pragma mark NSValue类
-(void)studyNSValue
{
//将结构体转化为对象
CGPoint myPoint;
CGSize mySize;
CGRect myRect;
NSValue *pointObjc;
NSMutableArray *touchPoints = [NSMutableArray array];
myPoint.x = 100;
myPoint.y = 200;
mySize.height = 20;
mySize.width = 40;
myRect.origin = myPoint;
myRect.size = mySize;
pointObjc = [NSValue valueWithCGPoint:myPoint];
[touchPoints addObject:pointObjc];
pointObjc = [NSValue valueWithCGSize:mySize];
[touchPoints addObject:pointObjc];
pointObjc = [NSValue valueWithCGRect:myRect];
[touchPoints addObject:pointObjc];
NSLog(@"%@",touchPoints);
// CGPoint youPoint;
// NSLog(@"%@",[[touchPoints lastObject]rectValue]);
}
#pragma mark NSDictionary
-(void)studyNSDictionary
{
NSMutableDictionary *glossary = [NSMutableDictionary dictionary];
// 存储三个条目在类别中
[glossary setObject:@"The Men like a girl" forKey:@"first_love"];
[glossary setObject:@"The Men must earn a lot of money" forKey:@"because_life"];
[glossary setObject:@"What the Men best like" forKey:@"i_know"];
NSLog(@"%@",[glossary objectForKey:@"first_love"]);
NSLog(@"%@",[glossary objectForKey:@"because_life"]);
NSLog(@"%@",[glossary objectForKey:@"i_know"]);
// 新语法 dict[key] = object
glossary[@"boy"] = @"I love you so much";
glossary[@"girl"] = @"you are my best love";
glossary[@"life"] = @"Family include men and women ,girl and boy,dog and cat";
NSLog(@"%@",glossary[@"boy"]);
NSLog(@"%@",glossary[@"girl"]);
NSLog(@"%@",glossary[@"life"]);
// 打印字典中所有的键值对，和数组对象不一样，字典对象是无序的
for (NSString *key in glossary)
{
NSLog(@"%@:%@",key,[glossary objectForKey:key]);
}
// 常用的NSDictionary方法
// initWithObjectsAndKeys:@"obj1",@"key1",@"obj2",@"key2", nil 将新分配的词典初始化为键-对象{key1,obj1}{key2,obj2}
// NSArray *sortKey = [glossary keysSortedByValueUsingSelector:<#(nonnull SEL)#>] 返回词典中得键数组，它根据selector指定的比较方法进行排序
}
#pragma mark 集合NSSet
-(void)studyNSSet
{
NSMutableSet *set1 = [NSMutableSet setWithObjects:@1,@3,@5,@10, nil];
NSSet *set2 = [NSSet setWithObjects:@-5,@100,@3,@5, nil];
NSSet *set3 = [NSSet setWithObjects:@12,@200,@3, nil];
NSLog(@"set1:");
[set1 print];
NSLog(@"set2:");
[set2 print];
// 相等性测试
if ([set1 isEqualToSet:set2]== YES)
{
NSLog(@"set1 equals set2");
}
else
{
NSLog(@"set1 is not equal to set2");
}
// 成员测试
if ([set1 containsObject:@10]==YES)
NSLog(@"set1 contains 10");
else
NSLog(@"set1 does not contain 10");
if ([set2 containsObject:@10]==YES)
NSLog(@"set2 contains 10");
else
NSLog(@"set2 does not contain 10");
// 在可变集合SET1中添加和移除对象
[set1 addObject:@4];
[set1 removeObject:@10];
NSLog(@"set1 after adding 4 and removing 10:");
[set1 print];
// 获得两个集合的交集
[set1 intersectSet:set2];
NSLog(@"set1 intersect set2:");
[set1 print];
// 两个集合的并集
[set1 unionSet:set3];
NSLog(@"set1 union set3");
[set1 print];
// 常用NSSet方法
[set2 anyObject];//返回集合中任一对象
[set2 containsObject:@10];//确定集合是否包含对象obj
[set2 member:@10];//使用isEquak:方法确定集合是否包含OBJ
// NSIndexSet 用于存储有序的索引到某种数据结构，比如数组
}
@end
时间： 2024-10-07 05:26:03