http://ip.aliyun.com/index.html
https://ispip.clang.cn/
https://github.com/Pingze-github/local-ips
1. 请求接口（GET）：
/service/getIpInfo.php?ip=[ip地址字串]
2. 响应信息：
（json格式的）国家 、省（自治区或直辖市）、市（县）、运营商
3. 返回数据格式：
{"code":0,"data":{"ip":"210.75.225.254","country":"u4e2du56fd","area":"u534eu5317",
"region":"u5317u4eacu5e02","city":"u5317u4eacu5e02","county":"","isp":"u7535u4fe1",
"country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000",
"county_id":"-1","isp_id":"100017"}}
其中code的值的含义为，0：成功，1：失败。