Clash Royale CLAN TAG#URR8PPP

When is the autorelease object released?

I tested it with the following code,and I found that the autorelease objc never release.
```

__weak id ref;
@implementation ViewController
- (void)viewDidLoad
[super viewDidLoad];
NSString *str = [NSString stringWithFormat:@"test"]; // add autoreleasePool
ref = str;

- (void)viewWillAppear:(BOOL)animated
[super viewWillAppear:animated];
NSLog(@"viewWillAppear:%@",ref); // result test

- (void)viewDidAppear:(BOOL)animated
[super viewDidAppear:animated];
NSLog(@"viewDidAppear:%@",ref); // result test

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
NSLog(@"%@",ref); // If I click long after，But it has not been released



```

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