private static void CopyDir(DirectoryInfo origin, string target)

         {

             if (!target.EndsWith("\\"))

             {

                 target += "\\";

             }

             if (!Exist(target))

             {

                 Create(target);

                 //Create(target, origin.GetAccessControl());

             }

             FileInfo[] fileList = origin.GetFiles();

             DirectoryInfo[] dirList = origin.GetDirectories();

             foreach (FileInfo fi in fileList)

             {

                 File.Copy(fi.FullName, target + fi.Name, true);

             }

             foreach (DirectoryInfo di in dirList)

             {

                 CopyDir(di, target + di.Name);

             }

             DirectoryInfo tmp = new DirectoryInfo(target);

             tmp.Attributes = origin.Attributes;

             tmp.SetAccessControl(origin.GetAccessControl());

         }

         private static void CopyDir(string origin, string target)

         {

             if (!origin.EndsWith("\\"))

             {

                 origin += "\\";

             }

             if (!target.EndsWith("\\"))

             {

                 target += "\\";

             }

             DirectoryInfo info = new DirectoryInfo(origin);

             if (!Exist(target))

             {

                 Create(target,info.GetAccessControl());//创建目录,访问权限

             }

             FileInfo[] fileList = info.GetFiles();

             DirectoryInfo[] dirList = info.GetDirectories();

             foreach (FileInfo fi in fileList)

             {

                 File.Copy(fi.FullName, target + fi.Name, true);

             }

             foreach (DirectoryInfo di in dirList)

             {

                 //CopyDir(origin + "\\" + di.Name, target + "\\" + di.Name);

                 CopyDir(di.FullName, target + "\\" + di.Name);

             }

             //设置目录属性和访问权限

             DirectoryInfo tmp = new DirectoryInfo(target);

             tmp.Attributes = info.Attributes;

             tmp.SetAccessControl(info.GetAccessControl());

         }