/// <summary>       /// Web 转换MD5       /// </summary>       /// <param name="str">字符</param>       /// <param name="code">32或64位</param>       /// <returns></returns>        public static string MD5(string str, int

 //MD5 正常加密   public static string HashString(string str) {             MD5   md5=MD5.Create();            byte[] source = md5.ComputeHash(Encoding.Default.GetBytes(str));            StringBuilder sb = new StringBuilder();            for (int i = 0; i < source.Length; i++)            {                sb.Append(source[i].ToString("x"));            }            return sb.ToString();         }

)        {            if (code == 16)            {                return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower().Substring(8, 16);            }            if (code == 32)            {                return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5");            }            return "00000000000000000000000000000000";        }