idhttp想post 网站就是登录不上。看看代码。

   with  IdHTTP1.Request do
    begin
    Referer := 'http://go.kunlun.com/?ref=http://s287.sg.kunlun.com';
    Accept := 'image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*';
    AcceptEncoding := 'gzip, deflate';
    AcceptLanguage := 'zh-cn';
    CacheControl := 'no-cache';
    Connection:='Keep-Alive';
    ContentLength := 178;
    Host := 'login.kunlun.com';
    UserAgent := 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727)';
    ContentType := 'application/x-www-form-urlencoded';
    IdHTTP1.HandleRedirects := true; //页面转向
    //IdHTTP1.AllowCookies := True;
    IdHTTP1.HTTPOptions :=[];
    IdHTTP1.Request.Accept := 'identity';
    IdHTTP1.ProtocolVersion := pv1_1 ;
   
    
    end;
    //ShowMessage('cookies='+cookies);
    //IdHTTP1.Request.CustomHeaders.Text:=cookies;
    ShowMessage('Cookie: '+mycookie);
    IdHTTP1.Request.CustomHeaders.Text:= 'Cookie: '+mycookie;    //IdHTTP1.Request.    //IdHTTP1.Request.URL := '/?act=user.weblogin';
    //ParamList.Add('user=pan');
    //ShowMessage(IdHTTP1.Post('http://login.kunlun.com/?act=user.weblogin', ParamList));    //ShowMessage(IdHTTP1.Post('http://go.kunlun.com/index.php', ParamList));    //http://go.kunlun.com/index.php?ref=http://s289.sg.kunlun.com&username=a2996673615&userpass=kaige123&usercode=etud&login=马上登录
    ParamList.Add('act=user.weblogin'); 
    ParamList.Add('ref=http://s287.sg.kunlun.com');
    ParamList.Add('username=zhangsan');
    ParamList.Add('userpass=adminer33');   //
    ParamList.Add('usercode='+yzm_str);
    ParamList.Add('login=马上登录');   //IdHTTP1.Post('http://go.kunlun.com/index.php', ParamList,SS);
   IdHTTP1.Post(url_str,ParamList,SS) ;   //IdHTTP1.Post('http%3A%2F%2Fgo.kunlun.com%2Findex.php%3Fref%3Dhttp%3A%2F%2Fs287.sg.kunlun.com&username=fuxuyang&userpass=kaige123&usercode='+yzm_str+'&login=%E9%A9%AC%E4%B8%8A%E7%99%BB%E5%BD%95',ParamList,SS);
   ShowMessage(Utf8ToAnsi(SS.DataString));
    //ShowMessage(IdHTTP1.Get('http://go.kunlun.com/index.php?retcode=0&retmsg=success&ref=http://s287.sg.kunlun.com') );
    FreeAndNil(ParamList);
    FreeAndNil(SS);