正则表达式敏感词过滤

                string content = Request.Form["content"];
                string regex = "杀人|放火|贩毒|卖淫";
                if (Regex.IsMatch(content,regex))
                {
                    Response.Write("语言中含有敏感词汇");
                    Response.End();
                }
                else
                {
                    Response.Write(Request.Form["content"]);
                }