pop回到之前的某一个页面

循环遍历

- (void)backHome:(UIButton *)button
{
   self.navigationController.navigationBarHidden = NO;
 4    CaseViewController *caseView = [[CaseViewController alloc] init];
   for (UIViewController *vc in self.navigationController.viewControllers) {

       if ([vc isKindOfClass:[caseView class]]) {

         [self.navigationController popToViewController:vc animated:YES];
          }

      }


 }