C#获取文件的Md5值

传入的文件流

        private string GetMd5(Stream stream) 
        {
            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
            byte[] bytesHash = md5.ComputeHash(stream);
            md5.Clear();
            string sTemp = "";
            for (int i = 0; i < bytesHash.Length; i++)
            {
                sTemp += bytesHash[i].ToString("X").PadLeft(2, '0');
            }
            return sTemp.ToLower();
        }