对计算机上的文件夹进行操作

        /// <summary>
        /// 下载文件（将服务器上的文件copy到本地）
        /// </summary>
        /// <param name="localPath_Str">本地路径</param>
        /// <param name="sourcePath">服务器上的文件资源路径</param>
        void getDirs(string localPath_Str, string sourcePath)
        {
            string[] fileNames = Directory.GetFiles(sourcePath);//获得文件夹内的文件数量
            if (fileNames.Length > 0)
            {
                for (int i = 0; i < fileNames.Length; i++)
                {
                    int k = fileNames[i].LastIndexOf("\");
                    string fileName_Str = fileNames[i].Substring(k + 1);
                    if (!File.Exists(localPath_Str + "\" + fileName_Str))//检查本地是否存在将要下载的文件
                    {
                        File.Create(localPath_Str + "\" + fileName_Str).Close();//创建文件                  
                    }
                    File.Copy(fileNames[i], localPath_Str + "\" + fileName_Str, true);//替换掉文件内容。
                }
            }
            string[] dirInfo = Directory.GetDirectories(sourcePath);//检查是否有文件夹
            if (dirInfo.Length > 0)
            {
                for (int i = 0; i < dirInfo.Length; i++)
                {
                    int k = dirInfo[i].LastIndexOf("\");
                    string dirInfo_Str = dirInfo[i].Substring(k + 1);
                    if (!Directory.Exists(localPath_Str + "\" + dirInfo_Str))//检查本地是否有相同的文件夹
                    {
                        DirectoryInfo directory = new DirectoryInfo(localPath_Str + "\" + dirInfo_Str);
                        directory.Create();
                    }
                    getDirs(localPath_Str + "\" + dirInfo_Str, dirInfo[i]);

                }
            }
        }

        /// <summary>
        /// 将目标文件读成流，写入到目标文件中
        /// </summary>
        /// <param name="serverPath">源文件</param>
        /// <param name="localPath">要写入的文件</param>
        public void DownLoadFils(string serverPath, string localPath)
        {
            StreamReader reader = new StreamReader(serverPath);//初始化读取
            StreamWriter writer = new StreamWriter(localPath);//初始化写入
            string readAll = reader.ReadToEnd();//从流中读取全部
            //将流写到到所创建的文件中去。
            writer.Write(readAll);
            writer.Flush();
            reader.Close();
            writer.Close();        
        }

        public static void DownLoadFiles(string serverPath,string localPath)
        {
            if ((File.Exists(serverPath)) && (File.Exists(localPath)))
            {
                FileStream fSource = File.Open(serverPath, FileMode.Open); //初始化文件流
                byte[] bty_Ary = new byte[fSource.Length];//初始化字节数组
                fSource.Read(bty_Ary, 0, bty_Ary.Length);//读取流中数据把它写到字节数组中
                fSource.Close();//关闭流                   
                FileStream fTarget = File.Open(localPath, FileMode.Append);//初始化文件流
                fTarget.Write(bty_Ary, 0, bty_Ary.Length);//将字节数组写入文件流
                fTarget.Close();//关闭流
            }            
            
            
            //string str = Encoding.Default.GetString(bty_Ary);//将字节数组内容转化为字符串      
            //byte[] array = Encoding.UTF8.GetBytes("Hello World!你好");//给字节数组赋值            

        }

var Info = System.Diagnostics.FileVersionInfo.GetVersionInfo(Path);

 

        public static bool CheckFolderExist(string path)
        {
            if (path.Trim().Length > 0)
            {
                DirectoryInfo directory = new DirectoryInfo(path);
                return directory.Exists;
            }
            else
            {
                return false;
            }
        }

        public static void CreateDirectory(string path)
        {
            if (path.Trim().Length > 0)
            {
                DirectoryInfo directory = new DirectoryInfo(path);
                directory.Create();
            }
        }

            FileInfo f1 = new FileInfo(@"F:A_插件james.txt");
            f1.Create();

        public static bool ByteStreamToFile(string Path, byte[] StreamByte, bool isZip)
        {
            try
            {
                byte[] bytes;
                if (isZip == true)
                {
                    bytes = GZip.Decompress(StreamByte);
                }
                else
                {
                    bytes = StreamByte;
                }


                //创建文件流(创建的方式,文件存在则覆盖)
                FileStream fileStream = new FileStream(Path, FileMode.Create);
                //把文件流写到文件中
                fileStream.Write(bytes, 0, bytes.Length);
                fileStream.Flush();
                fileStream.Close();
                fileStream.Dispose();
                return true;
            }
            catch
            {
                return false;
            }
        }

        public static void CopyFile(string sourceFileName, string destFileName)
        {
            File.Copy(sourceFileName, destFileName, true);
        }

        public static void DeleteFile(string filePath)
        {
            try
            {
                //c# 不能删除只读文件
                File.SetAttributes(filePath, FileAttributes.Normal);
                if (File.Exists(filePath))
                {
                    File.Delete(filePath);
                }
            }
            catch (Exception ex)
            {
                //  MessageBox.Show(ex.ToString());
                throw ex;
            }

        }

string[] Info_Ary = Directory.GetFileSystemEntries(@"F:A_插件");

 

　　　　 string path = context.Server.MapPath(@"~/CISWeb/SMT_SOP");
        DirectoryInfo theFolder = new DirectoryInfo(path);
        DirectoryInfo[] dirInfo = theFolder.GetDirectories();
        //遍历文件夹
        string strName = "";
        foreach (DirectoryInfo NextFolder in dirInfo)
        {
            // this.listBox1.Items.Add(NextFolder.Name);
            FileInfo[] fileInfo = NextFolder.GetFiles();
            foreach (FileInfo NextFile in fileInfo)  //遍历文件
                strName = NextFile.Name;
        }

        public void UseApp() { 
            system.Diagnostics.Process.Start("C:SayHi.exe","para1 para2");
        }

// para1 和para 2是调用的时候，传入的两个参数