HarmonyOS Swiper的cacheCount，在不设置loop = true的情况下，能实现缓存前后的元素的吗

可以缓存前后的元素，参考示例如下：

// xxx.ets
class MyDataSource0812 implements IDataSource {
  private list: number[] = []

  constructor(list: number[]) {
    this.list = list
  }

  totalCount(): number {
    return this.list.length
  }

  getData(index: number): number {
    return this.list[index]
  }

  registerDataChangeListener(listener: DataChangeListener): void {
  }

  unregisterDataChangeListener() {
  }
}

@Component
struct Inner123 {
  @Prop item: number;

  aboutToAppear(): void {
    console.log('aboutToAppear Inner_' + this.item);
  }

  aboutToDisappear(): void {
    console.log('aboutToDisappear Inner_' + this.item);
  }

  build() {
    Text(this.item.toString())
      .width('90%')
      .height(160)
      .backgroundColor(0xAFEEEE)
      .textAlign(TextAlign.Center)
      .fontSize(30)
  }
}

@Entry
@Component
struct SwiperExample0812 {
  private swiperController: SwiperController = new SwiperController()
  private data: MyDataSource0812 = new MyDataSource0812([])

  aboutToAppear(): void {
    let list: number[] = []
    for (let i = 1; i <= 10; i++) {
      list.push(i);
    }
    this.data = new MyDataSource0812(list)
  }

  build() {
    Column({ space: 5 }) {
      Swiper(this.swiperController) {
        LazyForEach(this.data, (item: number) => {
          Inner123({ item: item })
        }, (item: string) => item)
      }
      .cachedCount(1)
      .autoPlay(false)
      .interval(4000)
      .loop(false)
      .indicatorInteractive(true)
      .duration(1000)
      .itemSpace(0)
      .indicator( // 设置圆点导航点样式
        new DotIndicator()
          .itemWidth(15)
          .itemHeight(15)
          .selectedItemWidth(15)
          .selectedItemHeight(15)
          .color(Color.Gray)
          .selectedColor(Color.Blue))
      .displayArrow({
        // 设置导航点箭头样式
        showBackground: true,
        isSidebarMiddle: true,
        backgroundSize: 24,
        backgroundColor: Color.White,
        arrowSize: 18,
        arrowColor: Color.Blue
      }, false)
      .curve(Curve.Linear)

      Row({ space: 12 }) {
        Button('showNext')
          .onClick(() => {
            this.swiperController.showNext()
          })
        Button('showPrevious')
          .onClick(() => {
            this.swiperController.showPrevious()
          })
      }.margin(5)
    }.width('100%')
    .margin({ top: 5 })
  }
}
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