C# .net core 简洁的 MD5 加密

        /// <summary>
        /// MD5加密
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public string Md5(string val)
        {
            return string.Join("", MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(val)).Select(x => x.ToString("x2")));
        }