HarmonyOS @Reusable被缓存的子组件存在引用未释放问题

请尝试在MyItem组件中添加如下复用代码：

aboutToReuse(params: Record<string, ESObject>): void {
  this.item = params.item
  this.onMyItemAppear = params.onMyItemAppear
  this.onMyItemDisAppear = params.onMyItemDisAppear
}
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组件复用请参考：https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/ts-custom-component-lifecycle-V5#abouttoreuse10