ios中的自动释放池

1 @autoreleasepool {
2         UIView *view = [UIView alloc] init] autorelease];
3         [view autorelease];
4 }

 1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 2 {
 3     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
 4     // Override point for customization after application launch.
 5     self.window.backgroundColor = [UIColor whiteColor];
 6     [self.window makeKeyAndVisible];
 7     
 8     UIView *view = [[[UIView alloc] init] autorelease];
 9     NSLog(@"%d", view.retainCount);
10     [view autorelease];
11     
12     return YES;
13 }