HarmonyOS 鸿蒙Next在API12中，我使用了@Provider与@Consume的数据交互方式

[@Provide](/user/Provide)装饰器和[@Consume](/user/Consume)装饰器，可以实现与后代组件双向同步。不需要逐层传递回祖先。参考链接：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/arkts-provide-and-consume-V5

你可以尝试如下代码：

@Component
struct CompD {
  // @Consume装饰的变量通过相同的属性名绑定其祖先组件CompA内的@Provide装饰的变量
  @Consume reviewVotes: number;

  build() {
    Column() {
      Text(`reviewVotes(${this.reviewVotes})`)
      Button(`reviewVotes(${this.reviewVotes}), give +1`)
        .onClick(() => this.reviewVotes += 1)
    }
    .width('50%')
  }
}

@Component
struct CompC {
  build() {
    Row({ space: 5 }) {
      CompD()
      CompD()
    }
  }
}

@Component
struct CompB {
  build() {
    CompC()
  }
}

@Entry
@Component
struct CompA {
  // @Provide装饰的变量reviewVotes由入口组件CompA提供其后代组件
  @Provide reviewVotes: number = 0;

  build() {
    Column() {
      Button(`reviewVotes(${this.reviewVotes}), give +1`)
        .onClick(() => this.reviewVotes += 1)
      CompB()
    }
  }
}