#鸿蒙通关秘籍#如何处理二维数组的变化监听？

@Observed
class CustomArray extends Array<number> {}

@Component
struct ArrayComponent {
  @ObjectLink nums: CustomArray;

  build() {
    ForEach(this.nums, (num: number) => {
      Text(num.toString())
    })
  }
}

@Entry
@Component
struct MainComponent {
  @State data: CustomArray[] = [new CustomArray(0, 1), new CustomArray(2, 3)];

  build() {
    ArrayComponent({ nums: this.data[0] })
  }
}
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