/// <summary>

        /// 得到文件的MD5值

        /// </summary>

        /// <param name="Path">文件路径</param>

        /// <returns></returns>

        public static string GetFileMD5Code(string Path)

        {

            try

            {

                if (System.IO.File.Exists(Path))

                {

                    System.IO.FileStream Get_File = new System.IO.FileStream(Path, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);

                    System.Security.Cryptography.MD5CryptoServiceProvider Get_MD5 = new System.Security.Cryptography.MD5CryptoServiceProvider();

                    byte[] Hash_byte = Get_MD5.ComputeHash(Get_File);

                    string Result = System.BitConverter.ToString(Hash_byte);

                    Result = Result.Replace("-", "");

                    return Result;

                }

                else

                {

                    return "文件路径错误！";

                }

            }

            catch (Exception e)

            {

               return e.Message;

            }

        }