HarmonyOS LocalStorage.getShared()问题

//Ability  
storage: LocalStorage = new LocalStorage(this.para);  
onWindowStageCreate(windowStage:window.WindowStage)  
{  
  windowStage.loadContent('pages/Index', this.storage);  
}
// PageA.ets  
// 通过getShared接口获取stage共享的LocalStorage实例  
let storage = LocalStorage.getShared()  
@Entry(storage)  
@Component  
struct PageA {  
  @LocalStorageLink('PropA') propA: number = 1;  
  build() {  
    Row() {  
      Column() {  
        Text(`${this.propA}`)  
      }  
    }  
  }  
}
// PageB.ets  
let storage = LocalStorage.getShared()  
@Entry(storage)  
@Component  
struct PageB {  
  @LocalStorageLink('PropA') propA: number = 2;  
  build() {  
    Row() {  
      Column() {  
        Button("Change propA")  
          .onClick(() => {  
            this.propA = 100;  
          })  
      }  
    }  
  }  
}