如何使用c＃[duplicate]解压缩文件(how to unzip the file using c# [duplicate])

如何使用c＃[duplicate]解压缩文件(how to unzip the file using c# [duplicate])

可能重复： 推荐一个库/ API来解压缩C＃中的文件

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

Possible Duplicate: recommend a library/API to unzip file in C#

deal all plz suggest the ways to unzip file to selected folder using c#

最满意答案

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); } } } } }

Have a look at the GZipStream, it's one of the built-in zip support in the framework, there's an example on the MSDN page: http://msdn.microsoft.com/en-us/library/system.io.compression.gzipstream.aspx

Here's the example from the MSDN page:

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); } } } } }