如何从SwiftUI调用UIViewController

import SwiftUI
import UIKit

struct MyViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .white
        let label = UILabel()
        label.text = "Hello from UIViewController!"
        label.frame = CGRect(x: 0, y: 0, width: 200, height: 21)
        view.addSubview(label)
    }
}

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Welcome to SwiftUI!")
                .font(.largeTitle)
                .padding()
            UIViewControllerRepresentableBridge()
        }
    }
}

struct UIViewControllerRepresentableBridge: UIViewControllerRepresentable {
    func makeUIViewController(context: Context) -> MyViewController {
        return MyViewController()
    }

    func updateUIViewController(_ uiViewController: MyViewController, context: Context) {
        // Update the view controller if needed
    }
}