//跳转到指定的控制器
for (UIViewController *Vc in self.navigationController.viewControllers) {
if ([Vc isKindOfClass:[WJPersonCenterViewController class]]) {
[self.navigationController popToViewController:Vc animated:YES];
}
}
导航(NavanavigationController)push和pop
原文：http://www.cnblogs.com/TheYouth/p/4926620.html