查询ip的api接口（json等格式）

官网有更完整详细的介绍,做相关测试很方便

• https://ifconfig.co/
• http://www.ifconfig.io/
• http://ipinfo.io/developers 返回比较详细：有经纬度粗略定位，支持json
• http://ip.cn/

• （墙了）** http://ip-api.com/json**
  ip-api.com的官方API文档

• https://www.ipify.org/

API URI Response Type Sample Output (IPv4)
https://api.ipify.org text 98.207.254.136
https://api.ipify.org?format=json json {"ip":"98.207.254.136"}
https://api.ipify.org?format=jsonp jsonp callback({"ip":"98.207.254.136"});
https://api.ipify.org?format=jsonp&callback=getip jsonp getip({"ip":"98.207.254.136"});