string con = "server=.;UID=kan_li;Database=SPAdmin;PWD=197001;";
                Regex reg = new Regex(@"Database=(?<Database>[\s\S]*?)(;|$)", RegexOptions.IgnoreCase);
                Match mc = reg.Match(con);
                if (mc.Success)
                {
                    Response.Write(mc.Groups["Database"].Value);
                }
                Response.End();