curl -s www.ip138.com/ip2city.asp | iconv -f gbk -t utf8|grep -Po '(?<=\[).*?(?=\])'
curl -x 127.0.0.1:8087 -s www.ip138.com/ip2city.asp | iconv -f gbk -t utf8|grep -Po '(?<=\[).*?(?=\])'
curl -s www.ip138.com/ip2city.asp | iconv -f gbk -t utf8|grep -Po '(?<=\[).*?(?=\])'
curl -x 127.0.0.1:8087 -s www.ip138.com/ip2city.asp | iconv -f gbk -t utf8|grep -Po '(?<=\[).*?(?=\])'