创建树形结构的JSON

{
  "id": 1,
  "name": "Node 1",
  "children": [
    {
      "id": 2,
      "name": "Node 2",
      "children": [
        {
          "id": 3,
          "name": "Node 3"
        },
        {
          "id": 4,
          "name": "Node 4"
        }
      ]
    },
    {
      "id": 5,
      "name": "Node 5"
    }
  ]
}

[
  {
    "id": 1,
    "name": "Node 1",
    "children": [
      {
        "id": 2,
        "name": "Node 2",
        "children": [
          {
            "id": 3,
            "name": "Node 3"
          },
          {
            "id": 4,
            "name": "Node 4"
          }
        ]
      },
      {
        "id": 5,
        "name": "Node 5"
      }
    ]
  }
]