jsoncpp如何读取JSON文件中的多个子节点数组,想得到每个points中的数据

Question

{
  "version": "4.5.11",
  "flags": {},
  "shapes": [
    {
      "label": "1",
      "points": [
        [
          1100.0,
          652.542372881356
        ],
        [
          1130.5084745762713,
          723.728813559322
        ]
      ],
      "group_id": null,
      "shape_type": "circle",
      "flags": {}
    },
    {
      "label": "1",
      "points": [
        [
          828.8135593220339,
          679.6610169491526
        ],
        [
          849.1525423728814,
          749.1525423728814
        ]
      ],
      "group_id": null,
      "shape_type": "circle",
      "flags": {}
    },
    {
      "label": "1",
      "points": [
        [
          1252.542372881356,
          467.79661016949154
        ],
        [
          1259.322033898305,
          538.9830508474577
        ]
      ],
      "group_id": null,
      "shape_type": "circle",
      "flags": {}
    },
    {
      "label": "1",
      "points": [
        [
          1862.7118644067798,
          455.93220338983053
        ],
        [
          1898.3050847457628,
          528.8135593220339
        ]
      ],
      "group_id": null,
      "shape_type": "circle",
      "flags": {}
    }
}

Answer 1

循环 一下 获取 point属性