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