RedViewController*redVC = [[RedViewControlleralloc]initWithNibName:@"RedViewController"bundle:nil];
GreenViewController*greenVC = [[GreenViewControlleralloc]init];
BlueTableViewController*blueTVC = [[BlueTableViewControlleralloc]init];
UITabBarController*tabBarController = [[UITabBarControlleralloc]init];
UINavigationController*navi = [[UINavigationControlleralloc]initWithRootViewController:redVC];
//navi.tabBarItem.title = @"红色";
[tabBarControlleraddChildViewController:navi];
[tabBarControlleraddChildViewController:greenVC];
[tabBarControlleraddChildViewController:blueTVC];
//设置开始显示是1位置的子控制器
tabBarController.selectedIndex=1;
self.window= [[UIWindowalloc]initWithFrame:[UIScreenmainScreen].bounds];
self.window.rootViewController= tabBarController;
[self.windowmakeKeyAndVisible];
