C#對字符串進行壓縮和解壓縮的算法代碼

C#對字符串進行壓縮和解壓縮的算法代碼，字符串通過base64編碼后傳輸

public class Compression
    {
        /// <summary>
        /// 對字符串進行壓縮
        /// </summary>
        /// <param name="str">待壓縮的字符串</param>
        /// <returns>壓縮后的字符串</returns>
         public static string CompressString(string str)
        {

            string compressString = "";
            byte[] compressBeforeByte = Encoding.GetEncoding("UTF-8").GetBytes(str);
            byte[] compressAfterByte=Compress(compressBeforeByte);
            //compressString = Encoding.GetEncoding("UTF-8").GetString(compressAfterByte);
            compressString = Convert.ToBase64String(compressAfterByte);
            return compressString;
        }
        /// <summary>
        /// 對字符串進行解壓縮
        /// </summary>
        /// <param name="str">待解壓縮的字符串</param>
        /// <returns>解壓縮后的字符串</returns>
        public static string DecompressString(string str)
        {
            string compressString = "";
            //byte[] compressBeforeByte = Encoding.GetEncoding("UTF-8").GetBytes(str);
            byte[] compressBeforeByte = Convert.FromBase64String(str);
            byte[] compressAfterByte = Decompress(compressBeforeByte);
            compressString = Encoding.GetEncoding("UTF-8").GetString(compressAfterByte);
            return compressString;
        }
        /// <summary>
        /// 對文件進行壓縮
        /// </summary>
        /// <param name="sourceFile">待壓縮的文件名</param>
        /// <param name="destinationFile">壓縮后的文件名</param>
        public static void CompressFile(string sourceFile, string destinationFile)
        {
            throw new Exception("The method or operation is not implemented.");
        }
        /// <summary>
        /// 對文件進行解壓縮
        /// </summary>
        /// <param name="sourceFile">待解壓縮的文件名</param>
        /// <param name="destinationFile">解壓縮后的文件名</param>
        /// <returns></returns>
        public static void DecompressFile(string sourceFile, string destinationFile)
        {
            throw new Exception("The method or operation is not implemented.");
        }
        /// <summary>
        /// 對byte數組進行壓縮
        /// </summary>
        /// <param name="data">待壓縮的byte數組</param>
        /// <returns>壓縮后的byte數組</returns>
        public static byte[] Compress(byte[] data)
        {
            try
            {
                MemoryStream ms = new MemoryStream();
                GZipStream zip = new GZipStream(ms, CompressionMode.Compress,true);
                zip.Write(data, 0, data.Length);
                zip.Close();
                byte[] buffer = new byte[ms.Length];
                ms.Position=0;
                ms.Read(buffer, 0, buffer.Length);
                ms.Close();
                return buffer;


        }
        catch (Exception e)
        {
            throw new Exception(e.Message);
        }
    }
    public static byte[] Decompress(byte[] data)
    {
        try
        {
            MemoryStream ms = new MemoryStream(data);
            GZipStream zip = new GZipStream(ms, CompressionMode.Decompress, true);
            MemoryStream msreader = new MemoryStream();
            byte[] buffer = new byte[0x1000];
            while (true)
            {
                int reader = zip.Read(buffer, 0, buffer.Length);
                if (reader <= 0)
                {
                    break;
                }
                msreader.Write(buffer, 0, reader);
            }
            zip.Close();
            ms.Close();
            msreader.Position = 0;
            buffer = msreader.ToArray();
            msreader.Close();
            return buffer;
        }
        catch (Exception e)
        {
            throw new Exception(e.Message);
        }
    }
}</pre>