http://ip.aliyun.com/index.html
https://ispip.clang.cn/
https://github.com/Pingze-github/local-ips
1. 請求接口（GET）：
/service/getIpInfo.php?ip=[ip地址字串]
2. 響應信息：
（json格式的）國家 、省（自治區或直轄市）、市（縣）、運營商
3. 返回數據格式：
{"code":0,"data":{"ip":"210.75.225.254","country":"\u4e2d\u56fd","area":"\u534e\u5317",
"region":"\u5317\u4eac\u5e02","city":"\u5317\u4eac\u5e02","county":"","isp":"\u7535\u4fe1",
"country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000",
"county_id":"-1","isp_id":"100017"}}
其中code的值的含義為，0：成功，1：失敗。