/// <summary>
        /// 检索结果
        /// </summary>
        /// <param name="query">检索词</param>
        /// <param name="page">分页号</param>
        /// <param name="filter">来源/等级不同过滤</param>
        /// <param name="filetype">类型过滤</param>
        /// <param name="num">返回结果数目</param>
        /// <param name="XapResList">返回检索结果</param>
        /// <param name="ts">返回检索时间</param>
        public void SearchReturn(string query, int page, int filter, string filetype, out uint num, out List <SearchResult> XapResList, out TimeSpan ts)
        {
            DateTime DateTimestart = DateTime.Now;
            DateTime DateTimeend;

            Xapian.MSet xm;
            XapResList = new List <SearchResult>();

            {
                query = query.Replace("\\", "");
                query = query.Replace("/", "");
            }

            string querystr = _cs.JiebaSegnotSearch(query);     //分词

            if (!Directory.Exists(localdb))
            {
                Directory.CreateDirectory(localdb);
            }
            if (filetype == "1980/01/01")
            {
                xm = searchforpush(query, filter, filetype);   //检索
            }
            else
            {
                xm = search(querystr, filter, filetype);   //检索
            }

            //若返回不为空
            if (xm != null)
            {
                num = xm.Size();    //结果数目
                int pagecount = 0;
                for (Xapian.MSetIterator iter = xm.Begin(); iter != xm.End(); ++iter)
                {
                    SearchResult sr = new SearchResult();
                    ++pagecount;
                    if (pagecount <= ((page - 1) * 10))     //获得分页
                    {
                        continue;
                    }
                    else
                    {
                        if (XapResList.Count >= 10)         //每页10个结果
                        {
                            break;
                        }

                        Xapian.Document iterdoc    = iter.GetDocument();
                        bool            ftpflag    = false;               //ftp标记,转码用
                        bool            emflag     = false;
                        string          strcontent = iterdoc.GetData();   //取出正文
                        string          strtitle   = iterdoc.GetValue(3); //取出标题 ValueTitle
                        string          strahref   = iterdoc.GetValue(1); //取出链接
                        string          source     = iterdoc.GetValue(0);
                        string          strcut     = "";
                        int             contentlen = strcontent.Length;  //判断正文长度,为下面筛选含有关键词片段做准备
                        uint            docid      = iter.GetDocId();

                        if (source == "4")
                        {
                            sr.allcontent = strcontent;
                        }
                        if (source == "2")
                        {
                            ftpflag  = true;
                            strahref = UrlEncode(strahref);             //若为ftp链接,需要转码
                        }
                        string[]      strquerycut = querystr.Split(' ');
                        string        emlink      = "";
                        List <string> tmp         = new List <string>();
                        foreach (var item in strquerycut)
                        {
                            if (item == "e" || item == "E" || item == "m" || item == "M" ||
                                item == "em" || item == "Em" || item == "Em" || item == "EM" ||
                                item == "<" || item == ">")
                            {
                                emflag = true;
                                if (emlink != "")
                                {
                                    emlink = emlink + "|" + item;
                                }
                                else
                                {
                                    emlink = item;
                                }
                            }
                            else
                            {
                                tmp.Add(item);
                            }
                        }
                        HashSet <string> hs        = new HashSet <string>(tmp); //此时已经去掉重复的数据保存在hashset中
                        String[]         strunique = new String[hs.Count];
                        hs.CopyTo(strunique);

                        int cutlen = strunique.Length;
                        int count  = 0;

                        if (emlink != "" && cutlen == 0)
                        {
                            foreach (var item in strquerycut)
                            {
                                //消掉*问号空格
                                if (item == " " || item == "")
                                {
                                    continue;
                                }
                                CompareInfo Compare = CultureInfo.InvariantCulture.CompareInfo;
                                int         conpos  = Compare.IndexOf(strcontent, item, CompareOptions.IgnoreCase); //根据位置标红
                                                                                                                    //int conpos = strcontent.IndexOf(item);      //根据位置标红
                                if (conpos != -1)
                                {
                                    if (contentlen - conpos > 150 && conpos > 50)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, 200);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (conpos > 50)
                                    {
                                        ////截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, contentlen - conpos + 50);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }

                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (contentlen - conpos > 150)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(0, conpos + 150);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }

                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else
                                    {
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        //不够150的全拿出
                                        strcut = strcontent;
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }

                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                }
                                else
                                {
                                    CompareInfo Comparetitle = CultureInfo.InvariantCulture.CompareInfo;
                                    int         conpostitle  = Comparetitle.IndexOf(strtitle, item, CompareOptions.IgnoreCase); //根据位置标红
                                    if (conpostitle != -1)
                                    {
                                        if (contentlen > 200)
                                        {
                                            strcut = strcontent.Substring(0, 200);
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }

                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                        else
                                        {
                                            strcut = strcontent;
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }

                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                    }
                                    else
                                    {
                                        ++count;
                                    }
                                }
                            }
                        }
                        else
                        {
                            //每一个词都查一遍
                            foreach (var item in strunique)
                            {
                                //消掉*问号空格
                                if (item == " " || item == "")
                                {
                                    continue;
                                }
                                CompareInfo Compare = CultureInfo.InvariantCulture.CompareInfo;
                                int         conpos  = Compare.IndexOf(strcontent, item, CompareOptions.IgnoreCase); //根据位置标红
                                                                                                                    //int conpos = strcontent.IndexOf(item);      //根据位置标红
                                if (conpos != -1)
                                {
                                    if (contentlen - conpos > 150 && conpos > 50)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, 200);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红,大小写不敏感,regex替换法,replace大小写敏感
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (conpos > 50)
                                    {
                                        ////截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, contentlen - conpos + 50);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (contentlen - conpos > 150)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(0, conpos + 150);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else
                                    {
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        //不够150的全拿出
                                        strcut = strcontent;
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                }
                                else
                                {
                                    CompareInfo Comparetitle = CultureInfo.InvariantCulture.CompareInfo;
                                    int         conpostitle  = Comparetitle.IndexOf(strtitle, item, CompareOptions.IgnoreCase); //根据位置标红
                                    if (conpostitle != -1)
                                    {
                                        if (contentlen > 200)
                                        {
                                            strcut = strcontent.Substring(0, 200);
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }
                                            //strcut = HttpUtility.HtmlEncode(strcut);
                                            for (; count < cutlen; count++)
                                            {
                                                if (strunique[count] == " " || strunique[count] == "")
                                                {
                                                    continue;
                                                }
                                                //标红
                                                strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                                //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            }
                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                        else
                                        {
                                            strcut = strcontent;
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }
                                            //strcut = HttpUtility.HtmlEncode(strcut);
                                            for (; count < cutlen; count++)
                                            {
                                                if (strunique[count] == " " || strunique[count] == "")
                                                {
                                                    continue;
                                                }
                                                //标红
                                                strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                                //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            }
                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                    }
                                    else
                                    {
                                        ++count;
                                    }
                                }
                            }
                        }



                        //找到合适的内容之后返回结果
Finally:
                        sr.ahref = iterdoc.GetValue(1);
                        if (ftpflag)                   //判断是否需要转码链接
                        {
                            sr.ahrefencode = strahref; //ftp则使用转码链接
                        }
                        else
                        {
                            sr.ahrefencode = sr.ahref;
                        }
                        sr.link    = iterdoc.GetValue(2);
                        sr.title   = strtitle;
                        sr.snippet = strcut;
                        XapResList.Add(sr);
                    }
                }
            }
            else
            {
                num = 0;
            }
            DateTimeend = DateTime.Now;
            ts          = DateTimeend - DateTimestart;
            ts.TotalMilliseconds.ToString();        //查询时间返回
        }
        private void SearchReturn(Xapian.MSet xm, SearchInfo Searchwords, out AnsInfo ai)
        {
            ai = new AnsInfo();
            List <SearchResult> XapResList = new List <SearchResult>();
            string query = Searchwords.SearchString;

            query = query.Replace("\\", "");
            query = query.Replace("/", "");
            int    page      = Searchwords.page;
            var    segmenter = new JiebaSegmenter();
            var    segments  = segmenter.Cut(query);
            string querystr  = string.Join(" ", segments);   //分词

            //若返回不为空
            if (xm != null)
            {
                ai.totalnum = xm.Size();    //结果数目
                int pagecount = 0;
                for (Xapian.MSetIterator iter = xm.Begin(); iter != xm.End(); ++iter)
                {
                    SearchResult sr = new SearchResult();
                    ++pagecount;
                    if (pagecount <= ((page - 1) * 10))     //获得分页
                    {
                        continue;
                    }
                    else
                    {
                        if (XapResList.Count >= 10)         //每页10个结果
                        {
                            break;
                        }

                        Xapian.Document iterdoc    = iter.GetDocument();
                        bool            ftpflag    = false;               //ftp标记,转码用
                        bool            emflag     = false;
                        string          strcontent = iterdoc.GetData();   //取出正文
                        string          strtitle   = iterdoc.GetValue(3); //取出标题 ValueTitle
                        string          strahref   = iterdoc.GetValue(1); //取出链接
                        string          source     = iterdoc.GetValue(0);
                        string          strcut     = "";
                        int             contentlen = strcontent.Length;  //判断正文长度,为下面筛选含有关键词片段做准备
                        uint            docid      = iter.GetDocId();

                        if (source == "4")
                        {
                            sr.allcontent = strcontent;
                        }
                        if (source == "2")
                        {
                            ftpflag  = true;
                            strahref = UrlEncode(strahref);             //若为ftp链接,需要转码
                        }
                        string[]      strquerycut = querystr.Split(' ');
                        string        emlink      = "";
                        List <string> tmp         = new List <string>();
                        foreach (var item in strquerycut)
                        {
                            if (item == "e" || item == "E" || item == "m" || item == "M" ||
                                item == "em" || item == "Em" || item == "Em" || item == "EM" ||
                                item == "<" || item == ">")
                            {
                                emflag = true;
                                if (emlink != "")
                                {
                                    emlink = emlink + "|" + item;
                                }
                                else
                                {
                                    emlink = item;
                                }
                            }
                            else
                            {
                                tmp.Add(item);
                            }
                        }
                        HashSet <string> hs        = new HashSet <string>(tmp); //此时已经去掉重复的数据保存在hashset中
                        String[]         strunique = new String[hs.Count];
                        hs.CopyTo(strunique);

                        int cutlen = strunique.Length;
                        int count  = 0;

                        if (emlink != "" && cutlen == 0)
                        {
                            foreach (var item in strquerycut)
                            {
                                //消掉*问号空格
                                if (item == " " || item == "")
                                {
                                    continue;
                                }
                                CompareInfo Compare = CultureInfo.InvariantCulture.CompareInfo;
                                int         conpos  = Compare.IndexOf(strcontent, item, CompareOptions.IgnoreCase); //根据位置标红
                                                                                                                    //int conpos = strcontent.IndexOf(item);      //根据位置标红
                                if (conpos != -1)
                                {
                                    if (contentlen - conpos > 150 && conpos > 50)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, 200);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (conpos > 50)
                                    {
                                        ////截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, contentlen - conpos + 50);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }

                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (contentlen - conpos > 150)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(0, conpos + 150);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }

                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else
                                    {
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        //不够150的全拿出
                                        strcut = strcontent;
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }

                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                }
                                else
                                {
                                    CompareInfo Comparetitle = CultureInfo.InvariantCulture.CompareInfo;
                                    int         conpostitle  = Comparetitle.IndexOf(strtitle, item, CompareOptions.IgnoreCase); //根据位置标红
                                    if (conpostitle != -1)
                                    {
                                        if (contentlen > 200)
                                        {
                                            strcut = strcontent.Substring(0, 200);
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }

                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                        else
                                        {
                                            strcut = strcontent;
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }

                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                    }
                                    else
                                    {
                                        ++count;
                                    }
                                }
                            }
                        }
                        else
                        {
                            //每一个词都查一遍
                            foreach (var item in strunique)
                            {
                                //消掉*问号空格
                                if (item == " " || item == "")
                                {
                                    continue;
                                }
                                CompareInfo Compare = CultureInfo.InvariantCulture.CompareInfo;
                                int         conpos  = Compare.IndexOf(strcontent, item, CompareOptions.IgnoreCase); //根据位置标红
                                                                                                                    //int conpos = strcontent.IndexOf(item);      //根据位置标红
                                if (conpos != -1)
                                {
                                    if (contentlen - conpos > 150 && conpos > 50)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, 200);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红,大小写不敏感,regex替换法,replace大小写敏感
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (conpos > 50)
                                    {
                                        ////截取150字作为cache
                                        strcut = strcontent.Substring(conpos - 50, contentlen - conpos + 50);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else if (contentlen - conpos > 150)
                                    {
                                        //截取150字作为cache
                                        strcut = strcontent.Substring(0, conpos + 150);
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                    else
                                    {
                                        //strcut = HttpUtility.HtmlEncode(strcut);
                                        //不够150的全拿出
                                        strcut = strcontent;
                                        if (emflag)
                                        {
                                            strtitle = ReplaceCntent(emlink, strtitle);
                                            strcut   = ReplaceCntent(emlink, strcut);
                                        }
                                        for (; count < cutlen; count++)
                                        {
                                            if (strunique[count] == " " || strunique[count] == "")
                                            {
                                                continue;
                                            }
                                            //标红
                                            strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                            strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                        }
                                        strcut = "..." + strcut + "...";
                                        goto Finally;
                                    }
                                }
                                else
                                {
                                    CompareInfo Comparetitle = CultureInfo.InvariantCulture.CompareInfo;
                                    int         conpostitle  = Comparetitle.IndexOf(strtitle, item, CompareOptions.IgnoreCase); //根据位置标红
                                    if (conpostitle != -1)
                                    {
                                        if (contentlen > 200)
                                        {
                                            strcut = strcontent.Substring(0, 200);
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }
                                            //strcut = HttpUtility.HtmlEncode(strcut);
                                            for (; count < cutlen; count++)
                                            {
                                                if (strunique[count] == " " || strunique[count] == "")
                                                {
                                                    continue;
                                                }
                                                //标红
                                                strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                                //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            }
                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                        else
                                        {
                                            strcut = strcontent;
                                            if (emflag)
                                            {
                                                strtitle = ReplaceCntent(emlink, strtitle);
                                                strcut   = ReplaceCntent(emlink, strcut);
                                            }
                                            //strcut = HttpUtility.HtmlEncode(strcut);
                                            for (; count < cutlen; count++)
                                            {
                                                if (strunique[count] == " " || strunique[count] == "")
                                                {
                                                    continue;
                                                }
                                                //标红
                                                strtitle = Regex.Replace(strtitle, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                                //strtitle = strtitle.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                //strcut = strcut.Replace(strquerycut[count], "<font color = red>" + strquerycut[count] + "</font>");
                                                strcut = Regex.Replace(strcut, Regex.Escape(strunique[count]), "<em>" + strunique[count] + "</em>", RegexOptions.IgnoreCase);
                                            }
                                            strcut = "..." + strcut + "...";
                                            goto Finally;
                                        }
                                    }
                                    else
                                    {
                                        ++count;
                                    }
                                }
                            }
                        }


                        //找到合适的内容之后返回结果
Finally:
                        sr.ahref = iterdoc.GetValue(1);
                        if (ftpflag)                   //判断是否需要转码链接
                        {
                            sr.ahrefencode = strahref; //ftp则使用转码链接
                        }
                        else
                        {
                            sr.ahrefencode = sr.ahref;
                        }
                        sr.link    = iterdoc.GetValue(2);
                        sr.title   = strtitle;
                        sr.snippet = strcut;
                        XapResList.Add(sr);
                    }
                }
                ai.retinfo = XapResList;
            }
            else
            {
                ai.totalnum = 0;
                ai.retinfo  = null;
            }
        }