- (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions { if([userdefaults objectforkey:@autologin] != nil && [userdefaults objectforkey:@rand_code] != nil) { uistoryboard *board = [uistoryboard storyboardwithname:@mainstoryboard bundle:nil]; //获取故事板中某个view uiviewcontroller *next = [board instantiateviewcontrollerwithidentifier:@maintabbar]; [self.window setrootviewcontroller:next]; [self.window makekeyandvisible]; }else{ uistoryboard *board = [uistoryboard storyboardwithname:@mainstoryboard bundle:nil]; //获取故事板中某个view uiviewcontroller *next = [board instantiateviewcontrollerwithidentifier:@maintabbar]; [self.window setrootviewcontroller:next]; [self.window makekeyandvisible]; } return yes;}