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！

　　　　　　　　　　

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