js 怎么将数组修改全部的key

Question

  options: [
    {
      value: "1",
      label: "广东省",
      children: [
        {
          value: "1",
          label: "广州市",
          children: [
            {
              value: "1",
              label: "天河区"
            },
            {
              value: "2",
              label: "番禺区"
            }
          ]
        },
        {
          value: "2",
          label: "阳江市",
          children: [
            {
              value: "1",
              label: "江城区"
            },
            {
              value: "2",
              label: "阳西县"
            }
          ]
        }
      ]
    },
    {
      value: "2",
      label: "浙江省",
      children: [
        {
          value: "1",
          label: "舟山市",
          children: [
            {
              value: "1",
              label: "定海区"
            },
            {
              value: "2",
              label: "普陀区"
            }
          ]
        },
        {
          value: "3",
          label: "杭州市",
          children: [
            {
              value: "1",
              label: "上城区"
            },
            {
              value: "2",
              label: "西湖区"
            }
          ]
        }
      ]
    }

1. ]