如何从呈现的视图控制器上的按钮操作推送视图控制器

let pushButton = UIButton(type: .system)
pushButton.setTitle("Push", for: .normal)
pushButton.addTarget(self, action: #selector(pushButtonTapped), for: .touchUpInside)
self.view.addSubview(pushButton)

@objc func pushButtonTapped() {
    // 在这里执行推送视图控制器的操作
}

@objc func pushButtonTapped() {
    let destinationViewController = DestinationViewController()
    self.navigationController?.pushViewController(destinationViewController, animated: true)
}