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NSArray *arr = [NSArray arrayWithArray:self.navigationController.childViewControllers];
for (UIViewController *vc in arr) {
if ([[vc class] isSubclassOfClass:[Last_ViewController class]]) {
[self.navigationController popToViewController:vc animated:NO];
}
}
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原文地址:http://www.cnblogs.com/moluoyunduan/p/4691803.html