有一个内置拉链库.NET 3.5？

Is there a built-in zip library in .NET 3.5?

如果不是，有什么流行的开源.NET压缩库。

If not, what are the popular open source .net zip libraries.

推荐答案

没有内置库。 有开源的选择。

There is no built-in library. There are open-source options.

DotNetZip 之一。操作简单，使用方便。它具有很好的功能：AES加密，定时加密，溪流，ZIP64，文件的意见，统一code，进度事件，等等。而且它是免费和开源的。

DotNetZip is one. Simple, easy to use. It has good features: AES Encryption, regular encryption, streams, ZIP64, file comments, Unicode, progress events, more. And it's free and open source.

下面是一些示例code。

Here's some sample code.

    // extract all Photoshop files larger than 100mb
    using (ZipFile zip1 = ZipFile.Read(ZipFileName))
    {
        var LargePhotoShopFiles = zip1.SelectEntries("name = *.psd  and size > 100mb");
        foreach (ZipEntry e in LargePhotoShopFiles)
        {
            if (e.UsesEncryption)
                e.ExtractWithPassword("unpackDirectory", "VerySecret!");
            else 
                e.Extract("unpackDirectory");
        }
    }