HarmonyOS 鸿蒙Next：如何根据变量动态设置链式属性

 我知道我这么写是错的，但是不知道应该怎么写

我希望根据变量，isLocal 来决定是不是要设置 onInterceptRequest

import { webview } from ‘@kit.ArkWeb’;
import JsBridge from ‘./JSBridge’;

@Component
struct Index {
controller: webview.WebviewController = new webview.WebviewController();
@Prop src: string | Resource = ‘’;
@Prop isLocal: boolean = true;
@State jsBridge: JsBridge = new JsBridge();
aboutToAppear() {
// 配置Web开启调试模式
webview.WebviewController.setWebDebuggingAccess(true);
}
getMimeType(filePath: string) {
<span class="hljs-keyword"><span class="hljs-keyword">return</span></span> mimeType
}
build() {
Web({ src: this.src, controller: this.controller })
.domStorageAccess(true)
.javaScriptProxy({
object: this.jsBridge,
name: ‘jsBridge’,
methodList: this.jsBridge.methodList,
controller: this.controller
})
if (this.isLocal) {
.onInterceptRequest(event => {
const rawFilePath = event.request.getRequestUrl().replace(‘http://localhost/’, ‘’)
const webResourceResponse = new WebResourceResponse();
webResourceResponse.setResponseEncoding(“UTF-8”);
webResourceResponse.setResponseCode(200);
webResourceResponse.setResponseData($rawfile(rawFilePath));
webResourceResponse.setResponseMimeType(this.getMimeType(rawFilePath));
return webResourceResponse;
})
}else {
  }
}
}
export default Index;<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>