支持 7zip (LZMA) 的 C# 免费压缩库
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Free compression library for C# which supports 7zip (LZMA)
提问by Xn0vv3r
I have a program (written in C#) that reads/writes its data directly (direct file access without server) to firebird database files. For a better exchange I want to (un)compress them on import/export for a better exchange over the internet without the need of an external program to (un)compress them.
我有一个程序（用 C# 编写）直接读取/写入它的数据（没有服务器的直接文件访问）到 firebird 数据库文件。为了更好的交换，我想在导入/导出时对它们进行（解）压缩，以便在互联网上进行更好的交换，而无需外部程序来（解）压缩它们。
I know #ziplibwhich supports Zip, GZip, Tar and BZip2.
我知道#ziplib支持 Zip、GZip、Tar 和 BZip2。
What else free compression libraries for C# do you know? Is there a .NET library which supports LZMA so i can read/write ".7z" files?
你还知道哪些 C# 的免费压缩库？是否有支持 LZMA 的 .NET 库，以便我可以读/写“.7z”文件？
采纳答案by splattne
There is a good article written by Peter Bromberg:
Peter Bromberg 写了一篇很好的文章：
7Zip (LZMA) In-Memory Compression with C#
Shows a simple C#
SevenZip.Compression.Lzma.SevenZipHelperclass to enable high-compression of in-memory objects with C#. Adds a new 7Zip format LZMA Cookie Compression class to the previously published CookieCompression utility.
显示一个简单的 C#
SevenZip.Compression.Lzma.SevenZipHelper类，以使用C# 启用内存中对象的高压缩。将新的 7Zip 格式 LZMA Cookie 压缩类添加到先前发布的 CookieCompression 实用程序。
回答by Sebastian Dietz
7-zip has a free source code, public domain C# SDK for the LZMA algorithm:
7-zip 有一个免费的源代码，用于 LZMA 算法的公共域 C# SDK：
回答by aku
It seems to be quite a little known fact but .NET library includes packaging/compression API
这似乎是一个鲜为人知的事实，但 .NET 库包括打包/压缩 API
回答by Marc Gravell
If you are writing individual files, then you could just treat it as a stream and use the inbuilt GZipStream/ DeflateStream(although in some tests I did, #ZipLib out-performed the MS offering for both ratio and speed). Or there is inbuilt zip support somewhere in the framework. I don't know about LZMA, though.
如果您正在编写单个文件，那么您可以将其视为一个流并使用内置的GZipStream/ DeflateStream（尽管在我做过的一些测试中，#ZipLib 在比率和速度方面都优于 MS 产品）。或者在框架中的某处有内置的 zip 支持。不过我不知道LZMA。
回答by markhor
You may try SevenZipSharp
你可以试试SevenZipSharp
