将搜索关键词加红

加红：

        public static string ReplaceHightLight(string keyword, string content)
        {
            string keywords = "<font style="font-style:normal;color:#cc0000;"><b>" + keyword + "</b></font>";
            //替换为加红的
            string result = content.Replace(keyword,keywords);

            return result;
        }

分词：

        public static string[] SplitWords(string content)
        {
            List<string> strList = new List<string>();
            Analyzer analyzer = new PanGuAnalyzer();//指定使用盘古 PanGuAnalyzer 分词算法
            TokenStream tokenStream = analyzer.TokenStream("", new StringReader(content));

            Stopwatch watch = new Stopwatch();
            watch.Start();
            Segment segment = new Segment();
            ICollection<WordInfo> words = segment.DoSegment(content);

            watch.Stop();

            foreach (WordInfo wordInfo in words)
            {
                strList.Add(wordInfo.Word);

            }

            return strList.ToArray();
        }