如何使用一个wkwebview让tabbar在网页之间导航？

import UIKit
import WebKit

class WebViewController: UIViewController, WKNavigationDelegate {
    var webView: WKWebView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        webView = WKWebView(frame: view.bounds)
        webView.navigationDelegate = self
        view.addSubview(webView)
        
        let url = URL(string: "https://www.example.com")!
        let request = URLRequest(url: url)
        webView.load(request)
    }
    
    // 实现WKNavigationDelegate协议的方法，处理网页导航事件
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        // 网页加载完成
    }
}

class TabBarController: UITabBarController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let webViewController1 = WebViewController()
        webViewController1.tabBarItem = UITabBarItem(title: "网页1", image: UIImage(named: "web1"), tag: 0)
        
        let webViewController2 = WebViewController()
        webViewController2.tabBarItem = UITabBarItem(title: "网页2", image: UIImage(named: "web2"), tag: 1)
        
        viewControllers = [webViewController1, webViewController2]
    }
}

// 在AppDelegate中设置TabBarController为根视图控制器
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    window = UIWindow(frame: UIScreen.main.bounds)
    window?.rootViewController = TabBarController()
    window?.makeKeyAndVisible()
    return true
}