c#利用zlib.net对文件进行deflate流压缩（和java程序压缩生成一样）

C#自带DeflateStream，生成后的文件和javat生成的不一样，搜索了一下，找到国外一篇文章： http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/65537603-d7db-4e66-b5e6-d08275a4e4c8/ 也是同样的问题，其中的一个回复是：

The problem is that DeflateStream in c# does not use the same compression algorithm than Deflater in java(and probably objective C).
Instead, try to use the zlib.net library: http://www.componentace.com/zlib_.NET.htm

=====================================
下载引用zlib.net，调用CompressFile()方法，问题解决。

public static void CopyStream(System.IO.Stream input, System.IO.Stream output)
{
byte[] buffer = new byte[2000];
int len;
while ((len = input.Read(buffer, 0, 2000)) > 0)
{
output.Write(buffer, 0, len);
}
output.Flush();
}

private void compressFile(string inFile, string outFile)
{

System.IO.FileStream outFileStream = new System.IO.FileStream(outFile, System.IO.FileMode.Create);
zlib.ZOutputStream outZStream = new zlib.ZOutputStream(outFileStream, zlib.zlibConst.Z_DEFAULT_COMPRESSION);
System.IO.FileStream inFileStream = new System.IO.FileStream(inFile, System.IO.FileMode.Open);
try
{
CopyStream(inFileStream, outZStream);
}
finally
{
outZStream.Close();
outFileStream.Close();
inFileStream.Close();
}
}
private void decompressFile(string inFile, string outFile)
{
System.IO.FileStream outFileStream = new System.IO.FileStream(outFile, System.IO.FileMode.Create);
zlib.ZOutputStream outZStream = new zlib.ZOutputStream(outFileStream);
System.IO.FileStream inFileStream = new System.IO.FileStream(inFile, System.IO.FileMode.Open);
try
{
CopyStream(inFileStream, outZStream);
}
finally
{
outZStream.Close();
outFileStream.Close();
inFileStream.Close();
}
}