在Swift中从选项卡式导航中重新加载WKWebView需要帮助

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate {
    
    var webView: WKWebView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建WKWebView实例
        webView = WKWebView(frame: view.bounds)
        webView.navigationDelegate = self
        
        // 加载网页
        let url = URL(string: "https://www.example.com")
        let request = URLRequest(url: url!)
        webView.load(request)
        
        // 将WKWebView添加到视图中
        view.addSubview(webView)
    }
    
    // 重新加载WKWebView
    func reloadWebView() {
        webView.reload()
    }
    
    // WKNavigationDelegate方法，用于处理网页加载完成的回调
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        print("网页加载完成")
    }
}