HarmonyOS context.startAbility能否指定page

参考以下：

//在指定启动的CommonAbility中的onCreate()生命周期函数中将传递过来的参数信息保存下来。
export default class CommonAbility extends Ability {
  onCreate(want, launchParam) {
    AppStorage.SetOrCreate("WANT_PAGE",want)
  }
}
//在指定启动的CommonAbility中窗口创建时，将保存的页面参数取出，并加载该页面。
export default class CommonAbility extends Ability {

  onWindowStageCreate(windowStage: Window.WindowStage) {
    // Main window is created, set main page for this ability
    //设置默认加载页面
    let firstPage = "pages/index";
    let want = AppStorage.Get("WANT_PAGE") as Want;
    if(want.hasOwnProperty("uri")){
      firstPage = want.uri;//加载指定页面
    }
    windowStage.loadContent(firstPage, (err, data) => {
      if (err.code) {
        hilog.isLoggable(0x0000, 'testTag', hilog.LogLevel.ERROR);
        hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
        return;
      }
      hilog.isLoggable(0x0000, 'testTag', hilog.LogLevel.INFO);
      hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');
    });
  }
}