Question

可能重复：
recommend a library/API to unzip file in C#

处理所有plz建议使用c＃

将文件解压缩到所选文件夹的方法

Answer 1

看一下GZipStream，它是框架中内置的zip支持之一，在MSDN页面上有一个例子： http://msdn.microsoft.com/en-us/library/system.io.compression.gzipstream.aspx

以下是MSDN页面中的示例：

public class Program
{

    public static void Main()
    {
        // Path to directory of files to compress and decompress.
        string dirpath = @"c:\users\public\reports";

        DirectoryInfo di = new DirectoryInfo(dirpath);

        // Compress the directory's files.
        foreach (FileInfo fi in di.GetFiles())
        {
            Compress(fi);
        }

        // Decompress all *.gz files in the directory.
        foreach (FileInfo fi in di.GetFiles("*.gz"))
        {
            Decompress(fi);
        }
    }

    public static void Compress(FileInfo fi)
    {
        // Get the stream of the source file.
        using (FileStream inFile = fi.OpenRead())
        {
            // Prevent compressing hidden and 
            // already compressed files.
            if ((File.GetAttributes(fi.FullName) 
                & FileAttributes.Hidden)
                != FileAttributes.Hidden & fi.Extension != ".gz")
            {
                // Create the compressed file.
                using (FileStream outFile = 
                            File.Create(fi.FullName + ".gz"))
                {
                    using (GZipStream Compress = 
                        new GZipStream(outFile, 
                        CompressionMode.Compress))
                    {
                        // Copy the source file into 
                        // the compression stream.
                    inFile.CopyTo(Compress);

                        Console.WriteLine("Compressed {0} from {1} to {2} bytes.",
                            fi.Name, fi.Length.ToString(), outFile.Length.ToString());
                    }
                }
            }
        }
    }

    public static void Decompress(FileInfo fi)
    {
        // Get the stream of the source file.
        using (FileStream inFile = fi.OpenRead())
        {
            // Get original file extension, for example
            // "doc" from report.doc.gz.
            string curFile = fi.FullName;
            string origName = curFile.Remove(curFile.Length - 
                    fi.Extension.Length);

            //Create the decompressed file.
            using (FileStream outFile = File.Create(origName))
            {
                using (GZipStream Decompress = new GZipStream(inFile,
                        CompressionMode.Decompress))
                {
                    // Copy the decompression stream 
                    // into the output file.
                    Decompress.CopyTo(outFile);

                    Console.WriteLine("Decompressed: {0}", fi.Name);
                }
            }
        }
    }
}

Answer 2

您有两种选择，

1）您可以使用第三方API，例如DotNetZip（http://www.codeplex.com/DotNetZip）

2）或者您可以使用System.IO.Compression.DeflateStream。它需要.NET 2.0。

Answer 3

尝试将FastZip用于zip and unzip the files

Answer 4

在.NET中，有两种内置方法可以处理压缩流。 DeflateStream和GZipStream

DeflateStream ds = new DeflateStream(File.OpenRead(@"c:\myfolder\data.zip"), CompressionMode.Decompress);

GZipStream gZip = new GZipStream(File.OpenRead(@"c:\myfolder\data.zip"), CompressionMode.Decompress);

如何使用c＃解压缩文件

4 个答案: