Xcode Can'；如果我重新启动我的应用程序，我看不到高分

我的高分有问题。当我运行完应用程序后，我可以在HighScore标签中看到我的HighScore，但是当我退出应用程序并重新启动它时，HighScore消失了。。。谁能告诉我怎么了

这是我的.h文件：

#import <UIKit/UIKit.h>
#import <AudioToolbox/AudioToolbox.h>

int Y;
BOOL Start;
BOOL applications;
int RandomPosition;
int Scorenumber;
int HighScore;

@interface ViewController : UIViewController

{


SystemSoundID SoundId;


IBOutlet UILabel *Intro1;
IBOutlet UILabel *Intro2;
IBOutlet UILabel *Intro3;

IBOutlet UIImageView *Heli;

NSTimer *timer;



IBOutlet UIImageView *Obstacle;
IBOutlet UIImageView *Obstacle2;
IBOutlet UIImageView *Obstacle3;
IBOutlet UIImageView *Obstacle4;
IBOutlet UIImageView *Obstacle5;
IBOutlet UIImageView *Obstacle6;
IBOutlet UIImageView *Obstacle7;
IBOutlet UIImageView *Obstacle8;
IBOutlet UIImageView *Obstacle9;
IBOutlet UIImageView *Bottom1;
IBOutlet UIImageView *Bottom2;
IBOutlet UIImageView *Top2;
IBOutlet UIImageView *Top1;
IBOutlet UIImageView *corona;

IBOutlet UILabel *Score;

NSTimer *Scorer;



}






@end

#导入
#进口
int-Y；
BOOL启动；
布尔应用程序；
int随机位置；
整数；
int高分；
@界面ViewController:UIViewController
{
系统声音ID；
IBUILabel*简介1；
IBUILabel*简介2；
IBUILabel*简介3；
IBUIImageView*直升机；
n定时器*定时器；
IBUIImageView*障碍物；
IBUIImageView*Obstacle2；
IBUIImageView*Obstacle3；
IBUIImageView*Obstacle4；
IBUIImageView*障碍物5；
IBUIImageView*障碍6；
IBUIImageView*障碍7；
IBUIImageView*障碍8；
IBUIImageView*Obstacle9；
IBUIImageView*Bottom1；
IBUIImageView*Bottom2；
IBUIImageView*Top2；
IBUIImageView*Top1；
IBUIImageView*电晕；
IBUILabel*分数；
NSTimer*记分员；
}
@结束

这是我的.m文件：

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController


-(void)Collision{


if (CGRectIntersectsRect(Heli.frame, Obstacle.frame)) {
    [self EndGame];
}

if (CGRectIntersectsRect(Heli.frame, Obstacle2.frame)) {
    [self EndGame];
}

if (CGRectIntersectsRect(Heli.frame, Bottom1.frame)) {
    [self EndGame];
}

if (CGRectIntersectsRect(Heli.frame, Top1.frame)) {
    [self EndGame];
}





}


-(void)EndGame{

if (Scorenumber > HighScore) {
    HighScore = Scorenumber;
    [[NSUserDefaults standardUserDefaults] setObject:[NSNumber  
numberWithInt:HighScore] forKey:@"HighScoreSaved"];
}


Heli.hidden = YES;
[timer invalidate];
[Scorer invalidate];


[self performSelector:@selector(NewGame) withObject: nil afterDelay:2];

}


-(void)NewGame{

Bottom1.hidden = YES;
Top1.hidden = YES;
Obstacle.hidden = YES;
Obstacle2.hidden = YES;
corona.hidden = YES;

Intro1.hidden = NO;
Intro2.hidden = NO;
Intro3.hidden = NO;

Heli.hidden = NO;
Heli.center = CGPointMake(88, 286);
Heli.image = [UIImage imageNamed:@"buss til app opp.png"];

Start = YES;
Scorenumber = 0;
Score.text = [NSString stringWithFormat:@"Score: 0"];
Intro3.text = [NSString stringWithFormat:@"HighScore: %i", HighScore];


}







-(void)HeliMove{

[self Collision];

Heli.center = CGPointMake(Heli.center.x, Heli.center.y + Y);

Obstacle.center = CGPointMake(Obstacle.center.x -5, Obstacle.center.y);
Obstacle2.center = CGPointMake(Obstacle2.center.x -5, Obstacle2.center.y);
Bottom1.center = CGPointMake(Bottom1.center.x -5, Bottom1.center.y -0);
Top1.center = CGPointMake(Top1.center.x -5, Top1.center.y -0);
corona.center = CGPointMake(corona.center.x -5, corona.center.y );


if (Obstacle.center.x < -70) {
    RandomPosition = arc4random() %185;
    RandomPosition = RandomPosition + 170;
    Obstacle.center = CGPointMake(300, RandomPosition);
}


if (Obstacle2.center.x < 0) {
    RandomPosition = arc4random() %165;
    RandomPosition = RandomPosition + 600;
    Obstacle.center = CGPointMake(300, RandomPosition);
}


if (Top1.center.x <-100) {
    RandomPosition = arc4random() %80;
    Top1.center = CGPointMake(400, 17);
    RandomPosition = RandomPosition + 495;
    Bottom1.center = CGPointMake(400, 540);
}



if (corona.center.x < -3000) {
    RandomPosition = arc4random() %165;
    RandomPosition = RandomPosition + 110;
    corona.center = CGPointMake(6000, 162);
}




}



-(void)Scoring{
Scorenumber = Scorenumber + 1;
Score.text = [NSString stringWithFormat:@"Score: %i", Scorenumber];

if (CGRectIntersectsRect(Heli.frame, corona.frame)) {
    Scorenumber = Scorenumber + 20;
    corona.hidden = YES;

}




}





-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{



if (Start == YES) {

    AudioServicesPlaySystemSound(SoundId);

    Intro1.hidden = YES;
    Intro2.hidden = YES;
    Intro3.hidden = YES;

    timer = [NSTimer scheduledTimerWithTimeInterval:0.02 target:self 
selector:@selector(HeliMove) userInfo:nil repeats:YES];

    Scorer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self     
 selector:@selector(Scoring) userInfo:nil repeats:YES];


    Start = NO;

    Bottom1.hidden = NO;
    Top1.hidden = NO;
    Obstacle.hidden = NO;
    Obstacle2.hidden = NO;
    Obstacle3.hidden = NO;
    Obstacle4.hidden = NO;
    Obstacle5.hidden = NO;
    Obstacle6.hidden = NO;
    Obstacle7.hidden = NO;
    Obstacle8.hidden = NO;
    Obstacle9.hidden = NO;
    corona.hidden = NO;


    RandomPosition = arc4random() %150;
    RandomPosition = RandomPosition + 397;
    Obstacle.center = CGPointMake(570, RandomPosition);

    RandomPosition = arc4random() %75;
    RandomPosition = RandomPosition + 259;
    Obstacle2.center = CGPointMake(855, RandomPosition);


    RandomPosition = arc4random() %55;
    corona.center = CGPointMake(1040, 162);



}

Y = -7;
Heli.image = [UIImage imageNamed:@"buss til app opp.png"];

} 


-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{

Y = 7;
Heli.image = [UIImage imageNamed:@"buss til app ned.png"];


}


- (void)viewDidLoad
{

    // Get your highscore from the prefs.
    HighScore = [[[NSUserDefaults standardUserDefaults] objectForKey:@"HighScore"]       
intValue ];

    Start = YES;
    Bottom1.hidden = YES;
    Top1.hidden = YES;
    Obstacle.hidden = YES;
    Obstacle2.hidden = YES;
    Obstacle3.hidden = YES;
    Obstacle4.hidden = YES;
    Obstacle5.hidden = YES;
    Obstacle6.hidden = YES;
    Obstacle7.hidden = YES;
    Obstacle8.hidden = YES;
    Obstacle9.hidden = YES;
    corona.hidden = YES;



[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end

#导入“ViewController.h”
@界面视图控制器（）
@结束
@实现视图控制器
-（无效）碰撞{
if（CGRectIntersectsRect（直升机框架、障碍物框架））{
[自我终结]；
}
if（CGRectIntersectsRect（Heli.frame，Obstacle2.frame））{
[自我终结]；
}
if（CGRectIntersectsRect（直升机机架，底部1机架））{
[自我终结]；
}
if（CGRectIntersectsRect（Heli.frame，Top1.frame））{
[自我终结]；
}
}
-（无效）终局{
如果（分数编号>高分）{
高分=分数编号；
[[NSUserDefaults standardUserDefaults]设置对象：[NSNumber]
numberWithInt:HighScore]forKey:@“HighScore已保存”]；
}
Heli.hidden=是；
[计时器失效]；
[记分员无效]；
[自执行选择器：@selector（NewGame）with object:nil afterDelay:2]；
}
-（无效）新游戏{
Bottom1.hidden=是；
Top1.hidden=是；
障碍物。隐藏=是；
Obstacle2.hidden=是；
corona.hidden=是；
Intro1.hidden=NO；
Intro2.hidden=NO；
Intro3.hidden=NO；
Heli.hidden=否；
Heli.center=CGPointMake（88286）；
Heli.image=[UIImage ImageName:@“buss til app opp.png”]；
开始=是；
分数=0；
Score.text=[NSString stringWithFormat:@“Score:0”]；
Intro3.text=[NSString stringWithFormat:@“HighScore:%i”，HighScore]；
}
-（无效）直升机移动{
[自碰撞]；
Heli.center=CGPointMake（Heli.center.x，Heli.center.y+y）；
障碍物.center=CGPointMake（障碍物.center.x-5，障碍物.center.y）；
Obstacle2.center=CGPointMake（Obstacle2.center.x-5，Obstacle2.center.y）；
Bottom1.center=CGPointMake（Bottom1.center.x-5，Bottom1.center.y-0）；
Top1.center=CGPointMake（Top1.center.x-5，Top1.center.y-0）；
corona.center=CGPointMake（corona.center.x-5，corona.center.y）；
如果（障碍物中心x<-70）{
RandomPosition=arc4random（）%185；
随机位置=随机位置+170；
障碍物中心=CGPointMake（300，随机位置）；
}
如果（障碍物2.center.x<0）{
RandomPosition=arc4random（）%165；
随机位置=随机位置+600；
障碍物中心=CGPointMake（300，随机位置）；
}
如果（Top1.center.x您将高分输入NSUserDefaults，则按键：

forKey:@"HighScoreSaved"];

但你正试图用以下方法来解决问题：

objectForKey:@"HighScore"] 

您的密钥需要在两个位置都相同。或者换句话说，您必须使用相同的密钥向NSUserDefaults进行写入和读取