HarmonyOS 自定义struct缩小异常

参考代码：

Column() {
  Text('自定义struct缩小异常')
  Flex({ justifyContent: FlexAlign.SpaceBetween, alignItems: ItemAlign.Center }) {
    SubView({
      title: '左边',
      desc: this.leftContent,
      color: Color.Green
    })

    SubView({
      title: '右边',
      desc: this.rightContent,
      color: Color.Red
    })
  }
  .width(200).height(40)
  .borderWidth(1)
}

//自定义struct：
@Component
export struct SubView {
  @State title: string = ''
  @State desc: string = ''
  @State color: Color = Color.White

  build() {
    Row() {
      //省略代码
    }
    .height('100%')
    .flexShrink(1)
    .backgroundColor(this.color)
    .onClick(() => {
      if (this.desc.length >= 10) {
        this.desc = this.desc.slice(0, 2)
      } else {
        this.desc = `${this.desc}变长`
      }
    })
  }
}