demo/xinhuaribao/lib/model/special_detail.dart

class SpecialDetail {
  SpecialDetail({String? columnId, String? name, String? logo}) {
    _columnId = columnId;
    _name = name;
    _logo = logo;
  }

  SpecialDetail.fromJson(dynamic json) {
    _columnId = json['columnId'];
    _name = json['name'];
    _logo = json['logo'];
  }

  String? _columnId;
  String? _name;
  String? _logo;

  SpecialDetail copyWith({String? columnId, String? name, String? logo}) =>
      SpecialDetail(
        columnId: columnId ?? _columnId,
        name: name ?? _name,
        logo: logo ?? _logo,
      );

  String? get columnId => _columnId;

  String? get name => _name;

  String? get logo => _logo;

  Map<String, dynamic> toJson() {
    final map = <String, dynamic>{};
    map['columnId'] = _columnId;
    map['name'] = _name;
    map['logo'] = _logo;
    return map;
  }
}