iOS 各种返回上一界面

返回上一界面

[self.navigationController popViewControllerAnimated:<#(BOOL)#>];

返回跟视图

[self.navigationController popToRootViewControllerAnimated:<#(BOOL)#>];

返回指定界面（两种）

#pragma mark 第一种
[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex: 1] animated:YES];
#pragma mark 第二种
for (UIViewController *controller in self.navigationController.viewControllers) {
    if ([controller isKindOfClass:[你要跳转到的Controller class]]) {
        [self.navigationController popToViewController:controller animated:YES];
    }
}