oc：
for (UIViewController *temp in self.navigationController.viewControllers) {
if ([temp isKindOfClass:[你要跳转到的Controller class]]) {
[self.navigationController popToViewController:temp animated:YES];
}
}
swif：```
let vcIndex = self.navigationController?.viewControllers.indexOf({ (viewController) -> Bool in
if let _ = viewController as? Personal {
return true
}
return false
})
let composeVC = self.navigationController?.viewControllers[vcIndex!] as! Personal
self.navigationController?.popToViewController(composeVC, animated: true)
