C# byte换算

#region 字节算法

        [TestMethod]
        public void BytesTest()
        {
            var result = HumanReadableFilesize(232298705);
        }
        /// <summary>
        /// 转换方法
        /// </summary>
        /// <param name="size">字节值</param>
        /// <returns></returns>
        private string HumanReadableFilesize(double size)
        {
            String[] units = new String[] { "B", "KB", "MB", "GB", "TB", "PB" };
            double mod = 1024.0;
            int i = 0;
            while (size >= mod)
            {
                size /= mod;
                i++;
            }
            return Math.Round(size) + units[i];
        }
        #endregion