网上有很多关于字符压缩的例子，但是使用时发现基本都无法正常工作

? 能够压缩，但不能够还原，很是糟糕！还说经过测试可以正常使用，反正我是不能够正常使用的

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? 自己从codeproject上找到一个，可以正常工作，共享与大家

?? 库类

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class ZipLib
    {
        public static string Zip(string value)
        {
            //Transform string into byte[]  
            byte[] byteArray = new byte[value.Length];
            int indexBA = 0;
            foreach (char item in value.ToCharArray())
            {
                byteArray[indexBA++] = (byte)item;
            }

            //Prepare for compress
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            System.IO.Compression.GZipStream sw = new System.IO.Compression.GZipStream(ms,
                System.IO.Compression.CompressionMode.Compress);

            //Compress
            sw.Write(byteArray, 0, byteArray.Length);
            //Close, DO NOT FLUSH cause bytes will go missing...
            sw.Close();

            //Transform byte[] zip data to string
            byteArray = ms.ToArray();
            System.Text.StringBuilder sB = new System.Text.StringBuilder(byteArray.Length);
            foreach (byte item in byteArray)
            {
                sB.Append((char)item);
            }
            ms.Close();
            sw.Dispose();
            ms.Dispose();
            return sB.ToString();
        }

        public static string UnZip(string value)
        {
            //Transform string into byte[]
            byte[] byteArray = new byte[value.Length];
            int indexBA = 0;
            foreach (char item in value.ToCharArray())
            {
                byteArray[indexBA++] = (byte)item;
            }

            //Prepare for decompress
            System.IO.MemoryStream ms = new System.IO.MemoryStream(byteArray);
            System.IO.Compression.GZipStream sr = new System.IO.Compression.GZipStream(ms,
                System.IO.Compression.CompressionMode.Decompress);

            //Reset variable to collect uncompressed result
            byteArray = new byte[byteArray.Length];

            //Decompress
            int rByte = sr.Read(byteArray, 0, byteArray.Length);

            //Transform byte[] unzip data to string
            System.Text.StringBuilder sB = new System.Text.StringBuilder(rByte);
            //Read the number of bytes GZipStream red and do not a for each bytes in
            //resultByteArray;
            for (int i = 0; i < rByte; i++)
            {
                sB.Append((char)byteArray[i]);
            }
            sr.Close();
            ms.Close();
            sr.Dispose();
            ms.Dispose();
            return sB.ToString();
        }
    }

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使用库压缩的例子

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string str_org="aaaaaaaaaabbbbbbbbbbbbcccccccccdddddddd";
            string str_comp = ZipLib.Zip(str_org);
            Console.WriteLine("str_comp:" + str_comp);

            string str_uncomp = ZipLib.UnZip(str_comp);
            Console.WriteLine("str_uncomp:" + str_uncomp);


            Console.ReadLine();

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?希望对大家有所帮助