弹出取消和确认按钮

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"是否删除" message:@"" preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *otherAction = [UIAlertAction actionWithTitle:@"删除" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {

NSLog(@"删除");

}];

UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {

NSLog(@"取消");

}];

[alertController addAction:cancelAction];

[alertController addAction:otherAction];

[self presentViewController:alertController animated:YES completion:nil];