C#解压缩

C#解压缩字符串（代码）的两种方法需要第一中是使用.NET本身的类库，第二种方法使用第三方组件 ICSharpCode.SharpZipLib.dll（参考：http://www.cnblogs.com/kevinxtq/articles/454814.html)

代码详细列表：

using System;

using System.IO;

using System.IO.Compression;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Text;

using ICSharpCode.SharpZipLib.BZip2;

using ICSharpCode.SharpZipLib.Checksums;

using ICSharpCode.SharpZipLib.Zip;

using ICSharpCode.SharpZipLib.GZip;

namespace CompressClass

{

public static class CompressDeCompress

{

//压缩SharpZip

public static string SharpZipCompress(string uncompressedString)

{

byte[] bytData = System.Text.Encoding.Unicode.GetBytes(uncompressedString);

MemoryStream ms = new MemoryStream();

Stream s = new BZip2OutputStream(ms);

s.Write(bytData, 0, bytData.Length);

s.Close();

byte[] compressedData = (byte[])ms.ToArray();

return System.Convert.ToBase64String(compressedData, 0, compressedData.Length);

}

//解压SharpZip

public static string SharpZipDeCompress(string compressedString)

{

System.Text.StringBuilder uncompressedString = new System.Text.StringBuilder();

int totalLength = 0;

byte[] bytInput = System.Convert.FromBase64String(compressedString); ;

byte[] writeData = new byte[4096];

Stream s2 = new BZip2InputStream(new MemoryStream(bytInput));

while (true)

{

int size = s2.Read(writeData, 0, writeData.Length);

if (size > 0)

{

totalLength += size;

uncompressedString.Append(System.Text.Encoding.Unicode.GetString(writeData, 0, size));

}

else

{

break;

}

s2.Close();

return uncompressedString.ToString();

}

//压缩Gzip

public static string GzipCompress(string uncompressedString)

{