C#编程：模拟登录并发布信息到奇虎网站

using System;
using System.Collections.Generic;
using System.Text;

namespace QihooPost
{
    /// <summary>
    /// 奇虎登录
    /// </summary>
    public class QihooLogin
    {
        /// <summary>
        /// 奇虎登录
        /// </summary>
        /// <param name="QihooInf">用户信息</param>
        /// <returns></returns>
        public bool Login(QihooUserInfo QihooInf,out string Res)
        {
            Res = "";
            QihooInf.QihooCookie = new QihooCookie();
            string b = "https://login.360.cn/?o=sso&m=getToken&func=QHPass.loginUtils.tokenCallback&userName=" + QihooInf.LoginName + "&rand=0.3756105461873223";
            Res = WebTool.doGet("http://wenda.qihoo.com/", QihooInf.QihooCookie);
            Res = WebTool.doGet(b, QihooInf.QihooCookie);
            //获取token
            string Token = Res.Substring(Res.IndexOf("token\":\"") + 8, Res.IndexOf("\"}") - 8 - Res.IndexOf("token\":\""));
                      //https://login.360.cn/?o=sso&m=login&from=i360&rtype=data&func=QHPass.loginUtils.loginCallback&userName=wawd74520&pwdmethod=1&password=a8b706802541a812404a9881a318f476&isKeepAlive=1&token=8bf39c780038518b&captFlag=&r=1356762888357&callback=QiUserJsonP1356762834297
            string c = "https://login.360.cn/?o=sso&m=login&from=i360&rtype=data&func=QHPass.loginUtils.loginCallback&userName=" + QihooInf.LoginName + "&pwdmethod=1&password=" + Md5Fun(QihooInf.LoginPass) + "&isKeepAlive=1&token=" + Token + "&captFlag=&r=1353660413067&callback=QiUserJsonP1356762834297";
            Res = WebTool.doGet(c, QihooInf.QihooCookie);
            //获取s
            string S_yo = Res.Substring(Res.IndexOf("s\":\"") + 4, Res.IndexOf("\",\"userinfo") - 4 - Res.IndexOf("s\":\""));