C#对字符串进行压缩和解压缩的算法代码

概述C#对字符串进行压缩和解压缩的算法代码

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C#对字符串进行压缩和解压缩的算法代码，字符串通过base64编码后传输

public class Compression    {        /// <summary>        /// 对字符串进行压缩        /// </summary>        /// <param name="str">待压缩的字符串</param>        /// <returns>压缩后的字符串</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>        /// 对字符串进行解压缩        /// </summary>        /// <param name="str">待解压缩的字符串</param>        /// <returns>解压缩后的字符串</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>        /// 对文件进行压缩        /// </summary>        /// <param name="sourcefile">待压缩的文件名</param>        /// <param name="destinationfile">压缩后的文件名</param>        public static voID Compressfile(string sourcefile,string destinationfile)        {            throw new Exception("The method or operation is not implemented.");        }        /// <summary>        /// 对文件进行解压缩        /// </summary>        /// <param name="sourcefile">待解压缩的文件名</param>        /// <param name="destinationfile">解压缩后的文件名</param>        /// <returns></returns>        public static voID Decompressfile(string sourcefile,string destinationfile)        {            throw new Exception("The method or operation is not implemented.");        }        /// <summary>        /// 对byte数组进行压缩        /// </summary>        /// <param name="data">待压缩的byte数组</param>        /// <returns>压缩后的byte数组</returns>        public static byte[] Compress(byte[] data)        {            try            {                MemoryStream ms = new MemoryStream();                GZipStream zip = new GZipStream(ms,CompressionMode.Compress,true);                zip.Write(data,data.Length);                zip.Close();                byte[] buffer = new byte[ms.Length];                ms.position=0;                ms.Read(buffer,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,buffer.Length);                    if (reader <= 0)                    {                        break;                    }                    msreader.Write(buffer,reader);                }                zip.Close();                ms.Close();                msreader.position = 0;                buffer = msreader.ToArray();                msreader.Close();                return buffer;            }            catch (Exception e)            {                throw new Exception(e.Message);            }        }    }

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