POP跳转页面，从3号跳回1号，

NSArray *temArray = self.navigationController.viewControllers;
    
    for(TYLifeListViewController *temVC in temArray)
        
    {
        
        if ([temVC isKindOfClass:[TYLifeListViewController class]])
            
        {
            
            [self.navigationController popToViewController:temVC animated:YES];
            
        }
        
    }
    
}

　　它的存储方式是栈。跳过的界面会被释放，出栈了就会释放