C#实现简单的搜索高亮

        /// <summary>
        /// 搜索高亮
        /// </summary>
        /// <param name="inputText">inputText</param>
        /// <param name="searchWord">搜索的关键字</param>
        protected string HighlightText(string inputText, string searchWord)
        {
            System.Text.RegularExpressions.Regex expression = new System.Text.RegularExpressions.Regex(searchWord.Replace(" ", "|"), System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            return expression.Replace(inputText, new System.Text.RegularExpressions.MatchEvaluator(ReplaceKeywords));
        }
        /// <summary>
        /// 替换方法
        /// </summary>
        /// <param name="m"></param>
        /// <returns></returns>
        public string ReplaceKeywords(System.Text.RegularExpressions.Match m)
        {
            return "<span class='highlightTxtSearch'>" + m.Value + "</span>";
        }