libcurl是免费的轻量级的客户端网络库,支持DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS,POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, Telnet, TFTP.支持SSL, HTTPPOST,HTTPPUT, FTP上传, HTTP form上传,代理,cookies, 用户名与密码认证. 系统环境:Ubuntu 16.04源码:curl-7.63