[
  {
    "id": 23,
    "value": "项目",
    "subs": [
      {
        "id": 1,
        "name": "项目1"
      },
      {
        "id": 2,
        "name": "项目2"
      }
    ],
    "child": [
      {
        "id": 24,
        "value": "Study Code",
        "subs": [
          {
            "id": 1,
            "name": "China01_1",
            "pid": 1
          },
          {
            "id": 2,
            "name": "China01_2",
            "pid": 1
          },
          {
            "id": 3,
            "name": "China02_1",
            "pid": 2
          },
          {
            "id": 4,
            "name": "China02_2",
            "pid": 2
          }
        ]
      }
    ]
  }
]