HarmonyOS 使用Navigation的一些疑问

let para: Record<string, number> = { 'PropA': 47 };  
let storage: LocalStorage = new LocalStorage(para);  
@Component  
export struct PageOneTmp {  
  @Consume('pageInfos') pageInfos: NavPathStack;  
  @State areaCodeSelectViewIsPresent: boolean = false  
  build() {  
    NavDestination() {  
      Column() {  
        Text('新页面')  
      }  
    }  
    .title('pageOne')  
    .hideTitleBar(false)  
  }  
}  
@Entry({ storage: storage })  
@Component  
struct navLocalStrogePage {  
  @Provide('pageInfos') pageInfos: NavPathStack = new NavPathStack()  
  @State topSafeHeight: number = 0  
  private count: number = 49;  
  @Builder  
  PageMap(name: string) {  
    if (name === 'pageOne') {  
      PageOneTmp()  
    }  
  }  
  build() {  
    Navigation(this.pageInfos) {  
      Column() {  
        Button('pushPath')  
          .onClick(() => {  
            this.pageInfos.pushPath({ name: 'pageOne' })  
  
            let link1: SubscribedAbstractProperty<number> = storage.setAndLink('PropB', this.count); // Create PropB 49  
            console.log("link1::"+link1.get());  
            let link2: SubscribedAbstractProperty<number> = storage.setAndLink('PropA', this.count); // PropA exists, remains 47  
            console.log("link2::"+link2.get());  
            this.count++;  
           console.log("count::"+this.count);  
          })  
      }  
    }  
    .navDestination(this.PageMap)  
  }  
}