[
    {
        "code": 2345671,
        "id": 1,
        "city": "beijing"
    },
    {
        "code": 2345672,
        "id": 2,
        "city": "shanghai"
    },
    {},
    {"xxx":1},
    {
        "code": 2345673,
        "id": 3,
        "city": "guangzhou"
    },
    {
        "code": 2345674,
        "id": 4,
        "city": "shenzhen"
    },
    {
        "code": 2345675,
        "id": 5,
        "city": "hangzhou"
    },
    {
        "code": 2345676,
        "id": 6,
        "city": "nanjing"
    },
    {
        "code": 2345677,
        "id": 7,
        "city": "wuhan"
    },
    {
        "code": 2345678,
        "id": 8,
        "city": "chengdu"
    },
    {
        "code": 2345679,
        "id": 9,
        "city": "xian"
    },
    {
        "code": 23456710,
        "id": 10,
        "city": "hefei"
    }
]