我仅在iOS9中收到以下错误。这是我的代码:--(BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions{self.window=[[UIWindowalloc]initWithFrame:[[UIScreenmainScreen]bounds]];if([[NSUserDefaultsstandardUserDefaults]objectForKey:@"login_dict"]){if([[NSUserDefaultsstandard