#region 解压 文件 zip 格式 rar 格式/// <summary>///解压文件/// </summary>/// <param name="fileFromUnZip">解压前的文件路径（绝对路径）</param>/// <param name="fileToUnZip">解压后的文件目录（绝对路径）</param>public static void UnpackFile(string fileFromUnZip, string fileToUnZip){//获取压缩类型string unType = fileFromUnZip.Substring(fileFromUnZip.LastIndexOf(".") + 1, 3).ToLower();switch (unType){case "rar":UnRar(fileFromUnZip, fileToUnZip);break;case "zip":UnZip(fileFromUnZip, fileToUnZip);break;}}//解压rar格式的文件private static void UnRar(string fileFromUnZip, string fileToUnZip){using (Process Process1 = new Process())// 开启一个进程 执行解压工作
            {string ServerDir = ConfigurationManager.AppSettings["UnpackFile"].ToString();//WinRAR的安装路径(必须要安装 WinRAR)  //例于：C:\Program Files (x86)\WinRAR\RAR.exeProcess1.StartInfo.UseShellExecute = false;Process1.StartInfo.RedirectStandardInput = true;Process1.StartInfo.RedirectStandardOutput = true;Process1.StartInfo.RedirectStandardError = true;Process1.StartInfo.CreateNoWindow = true;Process1.StartInfo.FileName = ServerDir;Process1.StartInfo.Arguments = " x -inul -y " + fileFromUnZip + " " + fileToUnZip;Process1.Start();//解压开始
                Process1.WaitForExit();Process1.Close();}}// 解压zip 文件public static void UnZip(string fileFromUnZip, string fileToUnZip){ZipInputStream inputStream = new ZipInputStream(File.OpenRead(fileFromUnZip));ZipEntry theEntry;while ((theEntry = inputStream.GetNextEntry()) != null){fileToUnZip += "/";string fileName = Path.GetFileName(theEntry.Name);string path = Path.GetDirectoryName(fileToUnZip) + "/";// Directory.CreateDirectory(path);//生成解压目录if (fileName != String.Empty){FileStream streamWriter = File.Create(path + fileName);//解压文件到指定的目录 int size = 2048;byte[] data = new byte[2048];while (true){size = inputStream.Read(data, 0, data.Length);if (size > 0){streamWriter.Write(data, 0, size);}else{break;}}streamWriter.Close();}}inputStream.Close();}#endregion