string filePath = Application.StartupPath;            if (!Directory.Exists(filePath))            {                Directory.CreateDirectory(filePath);            }            try            {                CopyDirectory("\\\\192.168.0.23\\printUpdateFile", filePath);                MessageBox.Show("更新成功!");                Application.Exit();            }            catch (Exception)            {                MessageBox.Show("更新失败!");                Application.Exit();            }

private void CopyDirectory(string srcdir, string desdir)        {            string[] filenames = Directory.GetFileSystemEntries(srcdir);            foreach (string file in filenames)// 遍历所有的文件和目录            {                if (Directory.Exists(file))// 先当作目录处理如果存在这个目录就递归Copy该目录下面的文件                {                    string currentdir = desdir + "\\" + file.Substring(file.LastIndexOf("\\") + 1);                    if (!Directory.Exists(currentdir))                    {                        Directory.CreateDirectory(currentdir);                    }                    CopyDirectory(file, desdir);                }                else // 否则直接copy文件                {                    string srcfileName = file.Substring(file.LastIndexOf("\\") + 1);                    srcfileName = desdir + "\\" + srcfileName;                    if (!Directory.Exists(desdir))                    {                        Directory.CreateDirectory(desdir);                    }                    File.Copy(file, srcfileName, true);                }            }        }

 

如果访问共享文件夹需要输入验证添加下面代码

方法1：  ManagementScope   ms   =   new   ManagementScope(@"\\
     
      ");    ConnectionOptions   conn   =   new   ConnectionOptions();    conn.Username   =   "";    conn.Password   =   "";    ms.Options   =   conn;    ms.Connect();方法2：System.Diagnostics.Process.Start("net.exe","use   \\\\"+   strServer   +"     /user:\""+   strUserName   +"\"   \""+   strUserPD   +"\"");    然后就可以随时访问这台机器上的共享文件夹了    string   strPath   =   "\\\\10.1.12.3\\MS\\";    ......