HarmonyOS 鸿蒙Next $isPlaying this.isPlaying 两种写法，作用一样吗？

HarmonyOS 鸿蒙Next PlayButton({ buttonPlaying: $isPlaying })与PlayButton({ buttonPlaying: this.isPlaying })两种写法，作用一样吗？

@Link装饰器 示例Demo：

@Entry
@Component
struct Player {
  @State isPlaying: boolean = false
  build() {

    Column(){
      Column() {
        Button('Parent:' + this.isPlaying)
          .margin(15)
          .onClick(() => {
            this.isPlaying = !this.isPlaying;
          })

        Text(`Player is ${this.isPlaying ? '' : 'not'} playing`)
          .fontSize(18)
      }
      .border({
        width:1,
        color:Color.Brown
      })
      .backgroundColor(Color.Gray)

      PlayButton({ buttonPlaying: $isPlaying })

    }

  }
}

@Component
struct PlayButton {
  [@Link](/user/Link) buttonPlaying: boolean

  build() {
    Column() {
      Button(this.buttonPlaying ? 'pause' : 'play')
        .margin(20)
        .onClick(() => {
          this.buttonPlaying = !this.buttonPlaying;
        })
    }
  }
}