game_cocos_2c/assets/scripts/Test.ts

import { _decorator, Component, Node, WebView } from 'cc';
const { ccclass, property } = _decorator;

@ccclass('Test')
export class Test extends Component {

    @property(WebView)
    webView: WebView = null;

    start() {
        setTimeout(() => {
            const parent = this.webView.nativeWebView.parentElement;
            
        }, 1000);

    }

    update(deltaTime: number) {

    }
}