HarmonyOS PersistentStorage配合AppStorage应该如何使用

windowStage.loadContent('pages/Index', (err, data) => { 
  if (err.code) { 
    hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? ''); 
    return; 
  } 
  let window = windowStage.getMainWindow(); 
  window.then(win => { 
    let uiContext = win.getUIContext(); 
    uiContext.runScopedTask(() => { 
      PersistentStorage.persistProp('aProp', 47); 
      AppStorage.setOrCreate("aProp", 50) 
      console.log(`11 $${AppStorage.get('aProp')}`) 
    }) 
  }) 
  hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? ''); 
});