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  • C#压缩与解压库及函数(zip格式,需要参数:压缩文件夹)

    我使用的是SharpZipLib的压缩解压库,链接我就不提供了,下载引用就好了

    关于压缩,啥也不说,直接先来代码(我的代码基本你可以直接拿去用,我都写成静态函数不用实例化)

    压缩类

    public static class ZipClass
        {
            public static void ZipFileMain(string[] args)
            {
                string[] filenames = Directory.GetFiles(args[0]);
    
                Crc32 crc = new Crc32();
                ZipOutputStream s = new ZipOutputStream(File.Create(args[1]));
    
                s.SetLevel(6); // 0 - store only to 9 - means best compression
    
                foreach (string file in filenames)
                {
                    //打开压缩文件
                    FileStream fs = File.OpenRead(file);
                    byte[] buffer = new byte[fs.Length];
                    fs.Read(buffer, 0, buffer.Length);
                    ZipEntry entry = new ZipEntry(Path.GetFileName(file));
    
                    entry.DateTime = DateTime.Now;
    
                    // set Size and the crc, because the information
                    // about the size and crc should be stored in the header
                    // if it is not set it is automatically written in the footer.
                    // (in this case size == crc == -1 in the header)
                    // Some ZIP programs have problems with zip files that don't store
                    // the size and crc in the header.
                    entry.Size = fs.Length;
                    fs.Close();
    
                    crc.Reset();
                    crc.Update(buffer);
    
                    entry.Crc = crc.Value;
    
                    s.PutNextEntry(entry);
    
                    s.Write(buffer, 0, buffer.Length);
    
                }
    
                s.Finish();
                s.Close();
                Directory.Delete(args[0], true);
            }
        }
    

      关于参数的说明:ZipFileMain的参数是string[],第一个参数是压缩文件夹路径,第二个是压缩文件路径

    解压缩

     public static class UnZipClass
        {
            public static void UnZip(string[] args)
            {
                ZipInputStream s = new ZipInputStream(File.OpenRead(args[0]));
    
                ZipEntry theEntry;
                while ((theEntry = s.GetNextEntry()) != null)
                {
    
                    string directoryName = Path.GetDirectoryName(args[1]);
                    string fileName = Path.GetFileName(theEntry.Name);
    
                    //生成解压目录
                    Directory.CreateDirectory(directoryName);
    
                    if (fileName != String.Empty)
                    {
                        //解压文件到指定的目录
                        FileStream streamWriter = File.Create(args[1] + theEntry.Name);
    
                        int size = 2048;
                        byte[] data = new byte[2048];
                        while (true)
                        {
                            size = s.Read(data, 0, data.Length);
                            if (size > 0)
                            {
                                streamWriter.Write(data, 0, size);
                            }
                            else
                            {
                                break;
                            }
                        }
    
                        streamWriter.Close();
                    }
                }
                s.Close();
                File.Delete(args[0]);
            }
        }
    

      关于参数的说明:UnZip的参数是string[],第一个参数是压缩文件路径,第二个是压缩文件夹路径!

              

    新人发帖,顶顶,大家多加我好友,交流交流技术,各位博客园大神多多指教!

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  • 原文地址:https://www.cnblogs.com/xiaokangfrost/p/zip_and_unzip.html
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