zlib

We are able to get some C extensions running, like ripper, digest, socket, zlib, etc. after a few modifications.

经过一些小的修改，我们可以使一些C扩展运行起来，比如说，ripper、digest、socket、zlib等等。

The ZLIB compression algorithm requires more processor time but works well when applied to more varied data.

ZLIB压缩算法需要更多的处理器时间，但适用于更具变化性的数据。

Restructuring consistently improves on the behavior of simple block-level zlib (around 30% for the weblog, less for Hamlet).

重新构造始终比简单的块级别zlib的行为有改进（对于weblog提高约30%，对于Hamlet则少一些）。

The deflation algorithm used by gzip (also zip and zlib) is an open-source, patent-free variation of the LZ77 (Lempel-Ziv 1977) algorithm.

gzip（也称zip或zlib）所使用的算法是开源、无专利的LZ77（Lempel-Ziv1977）算法的变体。

ZLIB extensions are not necessary, so this script is compatible with most of the hosting services!

这个类在运行时候无需ZLIB库的支持，所以能够在绝大多数服务器上运行。