小编Siv*_* KS的帖子

以下是我的 JSON 的输出

{
    "success": true,
    "data": {
        "ones": [{
                "id": "2",
                "username": "LM10002"
            },
            {
                "id": "6",
                "username": "LM10006"
            }
        ],
        "twos": [{
                "id": "3",
                "username": "LM10003"
            },
            {
                "id": "8",
                "username": "LM10008"
            }
        ],
        "threes": [{
            "id": "4",
            "username": "LM10004"
        }],
        "fours": [{
                "id": "5",
                "username": "LM10005"
            },
            {
                "id": "14",
                "username": "GT10014"
            }
        ]
    }
}

这里的键ones, twos, threes, fours是我尝试解析并能够获取的值的动态键值

  DownLineModel({this.success, this.data});
  DownLineModel.fromJson(Map<String, dynamic> json) {
    success = json['success'];
    data = json['data'];
    print(data);

我如何解析 json …