NSUserDefaults保存的数据

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

[defaults setObject:@"111" forKey:@"myTest"];
[defaults synchronize];

NSString *testStr = [defaults objectForKey:@"myTest"];
NSLog(@"testStr is: %@",testStr);

if (![[NSUserDefaults
standardUserDefaults] boolForKey:@"firstLaunch"]) {

if ([[UIDevice
currentDevice] userInterfaceIdiom] ==
UIUserInterfaceIdiomPhone ) {
guideViewController = [[GuideViewController
alloc] init];
[self.window
addSubview:guideViewController.view];
}
} http://blog.csdn.net/hope_worker/article/details/7602967