MD5 加密

 #region 加密
        public static string GetMD5(string myString)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] fromData = System.Text.Encoding.Unicode.GetBytes(myString);
            byte[] targetData = md5.ComputeHash(fromData);
            string byte2String = null;

            for (int i = 0; i < targetData.Length; i++)
            {
                byte2String += targetData[i].ToString("x2");
            }
            return byte2String;
        }
 #endregion