如何在swift中播放webView中的视频

let webView = WKWebView(frame: CGRect(x: 0, y: 0, width: 300, height: 200))

let url = URL(string: "https://example.com/video.html")
let request = URLRequest(url: url!)
webView.load(request)

class ViewController: UIViewController, WKNavigationDelegate {
    override func viewDidLoad() {
        super.viewDidLoad()
        webView.navigationDelegate = self
    }
    
    // 监听webView加载完成事件
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        // 在webView加载完成后，可以执行一些操作，比如播放视频
    }
}

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    webView.evaluateJavaScript("document.getElementsByTagName('video')[0].play();", completionHandler: nil)
}