ios开发navigationController pushViewController 方式多次跳转 怎么返回到最上层，怎么返回到指定的某一层

返回指定的某个vc用下面（通过index定位）

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:2] animated:YES];

或（通过class定位）

for (UIViewController *controller in self.navigationController.viewControllers) {

if ([controller isKindOfClass:[你要跳转到的Controller class]]) {

[self.navigationController popToViewController:controller animated:YES];

}

}