Ios 重复数数组

我在创建一个程序时遇到了问题，该程序在数组中接收数字并通过字符串返回它们。在我的

main.m文件：

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

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NumberRepeater *repeater1 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@1, @10]]];

        [repeater1 initWithNumbers:@[@[@1, @10]]];
        NSLog(@"%@", [repeater1 process]);

        NumberRepeater *repeater2 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@1, @2], @[@2, @3]]];

        NSLog(@"%@", [repeater2 process]);

        NumberRepeater *repeater3 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@10, @4], @[@34, @6], @[@92, @2]]];

        NSLog(@"%@", [repeater3 process]);
    }
    return 0;
}

---

这决不是我需要解决的学校作业。我希望有一个解决方案，但这方面的指导将是伟大的。我觉得我几乎做到了，因为我已经做了类似的问题，并且得到了我需要的输出，但很明显我错过了，我只是不知道是什么。我知道我的过程方法缺少代码，只是我不知道应该在其中放什么。任何帮助都将不胜感激

我没有正确理解您的问题，但我认为您需要一个函数，该函数接受一个数字数组，并返回一个由所有数字组合而成的字符串。如果这是您想要的，您可以创建这样一个函数：-

-(NSString *)getStringFromArray:(NSArray <NSNumber *> *)array{
    NSString *numberString = @"";
    for (NSNumber *no in array) {
        numberString = [numberString stringByAppendingString:no.stringValue];
    }
    return numberString;
}

输出

Number String 1234

---

•我需要根据您的问题为您解释数组语法

首先，您可以这样声明数组

@[@1，@2，…]

这个

NSNumber的数组

对象为

Int

Value，因为数组只包含id对象，所以我们不能直接使用Int，但我们使用NSnumber，就像@1一样

数组中的对象可以是数组本身，所以我们可以声明数组对象的数组 就像这个例子

@[@10,4]，@[@3,6]，@[@2,9]]

这个数组

@[@[]、@[]、……等]

•根据您的问题，我给您提供了两项

NSArray

只要给我一个字符串，第一项重复（第二项）几次

解决方案

数字重复器

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface NumberRepeater : NSObject {
      NSArray * numbers; // private number array will be initialized during initialization of object
}
- (instancetype)initWithNumbers:(NSArray *)numbers;

- (NSString *)process;
@end

NS_ASSUME_NONNULL_END

#导入
NS\u假设\u非空\u开始
@接口编号重复：NSObject{
NSArray*numbers；//私有数字数组将在对象初始化期间初始化
}
-（instancetype）initWithNumber:（NSArray*）编号；
-（NSString*）过程；
@结束
NS\u假设\u非空\u结束

数字重复器

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


// NumberRepeater Extention for set private numbers
@interface NumberRepeater ()
@property (nonatomic,retain) NSArray *numbers;
@end


@implementation NumberRepeater
@synthesize numbers;

- (instancetype)initWithNumbers:(NSArray *)numbers {

    self = [super init];
    if (self) {
        self.numbers = numbers;
    }
    return self;
}

- (NSString *)process {

// if numbers have No Data
   if (numbers.count == 0) { return  @"0"; }

    // Array of array  each array have two element first is number to repeat and second have number of repetation
    // Example @[@1, @2]   repeat number(1)   TWO times  so out put should be 11
 //   @[@[@1, @2], @[@2, @3]]

    NSMutableString * output = [NSMutableString new];

    for (NSArray*item in numbers) {

        // Array should be with this Format
          // Example @[@1, @2]   repeat number(1)   TWO times

              // assert item have tow items only  like that @[@1,@2]
           NSAssert(item.count == 2,@"Array Should have Two items only");

        NSNumber *numberToRepeat = item[0]; // repeat
        NSNumber *repetitionCount = item[1]; //repetition Count

        NSMutableString * repeatdString = [NSMutableString new];

        for (NSInteger i= 0; i < [repetitionCount integerValue] ; i++) {
            [repeatdString appendString:[numberToRepeat stringValue]];
        }

        [output appendString:repeatdString];
        [output appendFormat:@" "]; // space on join with muti array

    }


    return output;
}
@end

#导入“NumberRepeater.h”
#进口
//设置专用号码的号码重复扩展
@接口编号重复器（）
@属性（非原子，保留）NSArray*编号；
@结束
@实现编号重复器
@综合数字；
-（instancetype）initWithNumber:（NSArray*）编号{
self=[super init]；
如果（自我）{
self.number=数字；
}
回归自我；
}
-（NSString*）进程{
//如果数字没有数据
如果（numbers.count==0）{return@“0”；}
//数组的数组每个数组有两个元素，第一个是重复数，第二个是重复数
//例@[@1，@2]重复数字（1）两次，因此输出值应为11
//   @[@[@1, @2], @[@2, @3]]
NSMutableString*输出=[NSMutableString new]；
用于（NSArray*项目编号）{
//数组应使用此格式
//示例@[@1，@2]重复数字（1）两次
//断言项只有两个这样的项@[@1，@2]
NSAssert（item.count==2，@“数组应仅包含两项”）；
NSNumber*numberToRepeat=项[0]；//重复
NSNumber*repetitionCount=项目[1]；//重复计数
NSMutableString*repeatdString=[NSMutableString new]；
对于（NSInteger i=0；i<[repetitionCount integerValue]；i++）{
[RepeatString appendString:[numberToRepeat stringValue]]；
}
[output appendString:RepeatedString]；
[output appendFormat:@”“]；//与多数组连接时的空格
}
返回输出；
}
@结束

main.m

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

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NumberRepeater *repeater1 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@1, @10]]];

        NSLog(@"%@", [repeater1 process]);

        NumberRepeater *repeater2 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@1, @2], @[@2, @3]]];

        NSLog(@"%@", [repeater2 process]);

        NumberRepeater *repeater3 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@10, @4], @[@34, @6], @[@92, @2]]];

        NSLog(@"%@", [repeater3 process]);
    }
    return 0;
}

#导入
#导入“NumberRepeater.h”
int main（int argc，const char*argv[]{
@自动释放池{
NumberRepeater*repeater1=[[NumberRepeater alloc]
initWithNumber:@[@[@1，@10]]；
NSLog（@“%@，[repeater1进程]）；
NumberRepeater*repeater2=[[NumberRepeater alloc]
initWithNumber:@[@1,2]，@[@2,3]]；
NSLog（@“%@，[repeater2进程]）；
NumberRepeater*repeater3=[[NumberRepeater alloc]
initWithNumbers:@[@10,4]、@[@34,6]、@[@92,2]]；
NSLog（@“%@，[repeater3进程]）；
}
返回0；
}

我的预期输出应该是：111111111111111222101010104343434349292谢谢您的回复。那么main.m文件应该包含什么呢？只包含您的question@OmieiOS检查上面

Number String 1234

   Example :

        Input @[@1,@2]      repeat number#1  two times
        Output should be 11

        Input @[@1,@10]      repeat number#1  10 times
        Output should be 1111111111

       Input @[@[@1,@3],@[@3,@4]]      repeat number#1  3 times , number#3   4 time
        Output should be 111 3333

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface NumberRepeater : NSObject {
      NSArray * numbers; // private number array will be initialized during initialization of object
}
- (instancetype)initWithNumbers:(NSArray *)numbers;

- (NSString *)process;
@end

NS_ASSUME_NONNULL_END

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


// NumberRepeater Extention for set private numbers
@interface NumberRepeater ()
@property (nonatomic,retain) NSArray *numbers;
@end


@implementation NumberRepeater
@synthesize numbers;

- (instancetype)initWithNumbers:(NSArray *)numbers {

    self = [super init];
    if (self) {
        self.numbers = numbers;
    }
    return self;
}

- (NSString *)process {

// if numbers have No Data
   if (numbers.count == 0) { return  @"0"; }

    // Array of array  each array have two element first is number to repeat and second have number of repetation
    // Example @[@1, @2]   repeat number(1)   TWO times  so out put should be 11
 //   @[@[@1, @2], @[@2, @3]]

    NSMutableString * output = [NSMutableString new];

    for (NSArray*item in numbers) {

        // Array should be with this Format
          // Example @[@1, @2]   repeat number(1)   TWO times

              // assert item have tow items only  like that @[@1,@2]
           NSAssert(item.count == 2,@"Array Should have Two items only");

        NSNumber *numberToRepeat = item[0]; // repeat
        NSNumber *repetitionCount = item[1]; //repetition Count

        NSMutableString * repeatdString = [NSMutableString new];

        for (NSInteger i= 0; i < [repetitionCount integerValue] ; i++) {
            [repeatdString appendString:[numberToRepeat stringValue]];
        }

        [output appendString:repeatdString];
        [output appendFormat:@" "]; // space on join with muti array

    }


    return output;
}
@end

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

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NumberRepeater *repeater1 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@1, @10]]];

        NSLog(@"%@", [repeater1 process]);

        NumberRepeater *repeater2 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@1, @2], @[@2, @3]]];

        NSLog(@"%@", [repeater2 process]);

        NumberRepeater *repeater3 = [[NumberRepeater alloc] 
        initWithNumbers: @[@[@10, @4], @[@34, @6], @[@92, @2]]];

        NSLog(@"%@", [repeater3 process]);
    }
    return 0;
}