复制、移动、删除、改名文件或文件夹

                            uses Windows,SysUtils,Classes,FileCtrl,ShellAPI;


//判断文件或目录是否存在
function JudgeFDExists(const Name:String):Boolean;

//删除文件或目录
function DelFD(const Name:String;CanUndo:Boolean=True):Boolean;

//重命名文件或目录
function ReNameFD(OldName，NewName:String):Boolean;

//移动文件或目录
function MoveFD(SouName,DesName:String):Boolean;

//复制文件或目录
function CopyFD(SouName,DesName:String):Boolean;





//判断文件或目录是否存在
function JudgeFDExists(const Name:String):Boolean;
begin
 Result:=False;
 if (FileExists(Name)) or (DirectoryExists(Name)) then Result:=True;
end;


//删除文件或目录
{
 CanUndo =True,表示把文件或目录删除到回收站(默认方式)
         =False，表示真正删除
}
function DelFD(const Name:String;CanUndo:Boolean=True):Boolean;
var
 Fo:TSHFileOpStruct;
begin
 if not JudgeFDExists(Name) then
  Raise Exception.Create('Cannot find the file or directory.')
 else
 begin
  FillChar(Fo,SizeOf(Fo),0);
  with Fo do
  begin
   Wnd:=0;
   wFunc:=FO_DELETE;
   pFrom:=PChar(Name+#0);
   pTo:=#0#0;
   if CanUndo then fFlags:=FOF_AllOWUNDO+FOF_NOCONFIRMATION
   else fFlags:=FOF_NOCONFIRMATION+FOF_SILENT;
  end;
  Result:=(SHFileOperation(Fo)=0);
 end; 
end;

//重命名文件或目录
function ReNameFD(OldName，NewName:String):Boolean;
var
 Fo:TSHFileOpStruct;
begin
 if not JudgeFDExists(OldName) then
  Raise Exception.Create('Cannot find the file or directory.')
 else
 begin
  FillChar(Fo,SizeOf(Fo),0);
  with Fo do
  begin
   Wnd:=0;
   wFunc:=FO_RENAME;
   pFrom:=PChar(OldName+#0);
   pTo:=PChar(NewName+#0);
   fFlags:=FOF_NOCONFIRMATION+FOF_SILENT;
  end;
  Result:=(SHFileOperation(Fo)=0);
 end;
end;

//移动文件或目录
function MoveFD(SouName,DesName:String):Boolean;
var
 Fo:TSHFileOpStruct;
begin
 if not JudgeFDExists(SouName) then
  Raise Exception.Create('Cannot find the file or directory.')
 else
 begin
  FillChar(Fo,SizeOf(Fo),0);
  with Fo do
  begin
   Wnd:=0;
   wFunc:=FO_MOVE;
   pFrom:=PChar(SouName+#0);
   pTo:=PChar(DesName+#0);
   fFlags:=FOF_NOCONFIRMATION+FOF_SILENT;
  end;
  Result:=(SHFileOperation(Fo)=0);
 end;
end;

//复制文件或目录
function CopyFD(SouName,DesName:String):Boolean;
var
 Fo:TSHFileOpStruct;
begin
 if not JudgeFDExists(SouName) then
  Raise Exception.Create('Cannot find the file or directory.')
 else
 begin
  FillChar(Fo,SizeOf(Fo),0);
  with Fo do
  begin
   Wnd:=0;
   wFunc:=FO_COPY;
   pFrom:=PChar(SouName+#0);
   pTo:=PChar(DesName+#0);
   fFlags:=FOF_NOCONFIRMATION+FOF_SILENT;
  end;
  Result:=(SHFileOperation(Fo)=0);
 end;
end;