RListCakeCategoryCityVo

{
    "code": 200,
    "msg": "返回编码描述",
    "data": [
        {
            "cityId": 1872886836146016300,
            "cityName": "杭州市",
            "cityLetter": "string",
            "cityParentId": 0,
            "cityCode": "string",
            "cityExtra": {
                "cityArea": [
                    {
                        "id": "string",
                        "name": "string"
                    }
                ]
            }
        }
    ]
}