var
s: string;
begin
with IdHTTP1.ProxyParams do
begin
ProxyServer := '192.168.0.139'; //代理地址
ProxyPort := 808; //代理端口
ProxyUsername := '';//你的用户名
ProxyPassword := '';//你的密码
end;
s :=IdHTTP1.Get('http://www.126.com');
ShowMessage(s);//验证成功,小心啊...呵呵
end;