PersistentStorage持久化第二次获取不到，在两个model里

PersistentStorage.persistProp('aProp', 20) 
 
@Entry 
@Component 
struct Index { 
  @State message: string = 'Hello World' 
  @State aProp: number|undefined = 48 
  //@StorageProp('aProp') aPropD: number = 0; 
 
  build() { 
    Row() { 
      Column() { 
        //Text(this.aPropD.toString()) 
        Text(this.message) 
        // 应用退出时会保存当前结果。重新启动后，会显示上一次的保存结果 
        Text(`${this.aProp}`) 
          .onClick(() => { 
            if(this.aProp){ 
              this.aProp++; 
              PersistentStorage.persistProp('aProp', this.aProp); 
              AppStorage.setOrCreate("aProp",this.aProp) 
            } 
            //this.aProp += 1; 
          }) 
      } 
    } 
  } 
 
  aboutToAppear(): void { 
    this.aProp = AppStorage.get("aProp"); 
  } 
}