UIAlertController *alterController = [UIAlertController alertControllerWithTitle:@"预订提醒"
message:title
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *actionCancel = [UIAlertAction actionWithTitle:@"取消"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * _Nonnull action) { }];
UIAlertAction *actionSubmit = [UIAlertAction actionWithTitle:@"确定"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * _Nonnull action) {}];
[alterController addAction:actionCancel];
[alterController addAction:actionSubmit];
[self presentViewController:alterController animated:YES completion:^{}];