curl http://members.3322.org/dyndns/getip
curl ip.6655.com/ip.aspx
curl ifconfig.me
curl icanhazip.com
curl ident.me
curl ipecho.net/plain
curl whatismyip.akamai.com
curl myip.dnsomatic.com
更多用法访问ifconfig.co
wget -qO - ifconfig.co
返回IP和地区
curl ip.6655.com/ip.aspx?area=1
curl cip.cc