如何在swift中隐藏customView中的按钮

import UIKit

class CustomView: UIView {
    let myButton = UIButton(type: .system)
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupButton()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupButton()
    }
    
    private func setupButton() {
        myButton.setTitle("Click Me", for: .normal)
        myButton.frame = CGRect(x: 50, y: 50, width: 100, height: 50)
        addSubview(myButton)
    }
    
    func hideButton() {
        myButton.isHidden = true
    }
    
    func showButton() {
        myButton.isHidden = false
    }
}

import UIKit

class ViewController: UIViewController {
    var customView: CustomView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        customView = CustomView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
        customView.center = view.center
        view.addSubview(customView)
        
        // 隐藏按钮
        customView.hideButton()
        
        // 显示按钮
        // customView.showButton()
    }
}