delphi文件管理類函數

var
  f: string;
begin
  f := ;
  if not FileExists(f) then
  begin
    
  end;
end;

var
  dir: string;
begin
  dir := ;
  if not DirectoryExists(dir) then
  begin
    
  end;
end;

var
  f: string;
begin
  f := ;
  

  
  Windows.DeleteFile(PChar(f));  
end;

var
  dir: string;
begin
  dir := ;
  RemoveDir(dir);  

  
  RemoveDirectory(PChar(dir));  
end;

var
  dir: string;
begin
  dir := GetCurrentDir;
  ShowMessage(dir); 
end;

var
  dir: string;
begin
  dir := ;
  if SetCurrentDir(dir) then
    ShowMessage(GetCurrentDir);  

  
  ChDir(dir);  

  
  SetCurrentDirectory(PChar(Dir));  
end;

var
  dir: string;
  b: Byte;
begin
  b := ;
  GetDir(b,dir);
  ShowMessage(dir);  

  
  
end;

var
  OldName,NewName: string;
begin
  OldName := ;
  NewName := ;

  if RenameFile(OldName,NewName) then
    ShowMessage();

  
  SetCurrentDir();
  OldName := ;
  NewName := ;

  if RenameFile(OldName,NewName) then
    ShowMessage();
end;

var
  dir: string;
begin
  dir := ;
  if not DirectoryExists(dir) then
    CreateDir(dir);  

  
  CreateDirectory(PChar(dir),nil);  

  
  dir := ;
  ForceDirectories(dir);  
end;

var
  dir: string;
begin
  dir := ;
  RemoveDir(dir);  

  
  RemoveDirectory(PChar(dir));  
end;

var
  FileName: string;
  i: Integer;
begin
  FileName := ;
  i := FileCreate(FileName);

  if i> then
    ShowMessage( + IntToStr(i))
  else
    ShowMessage();
end;

var
  s: string;
  i: Integer;
begin
  s := ;
  i := GetFileVersion(s);  
  ShowMessage(IntToStr(i));  
end;

var
  r: Real;
  s: string;
begin
  r := DiskSize();  
  r := r///;
  Str(r::,s);  
  s :=  + s + ;
  ShowMessage(s);  

  r := DiskFree();  
  r := r///;
  Str(r::,s);
  s :=  + s + ;
  ShowMessage(s);  
end;

var
  FileName,Dir,s: string;
begin
  FileName := ;
  Dir := ;
  s := FileSearch(FileName,Dir);

  if s<> then
    ShowMessage(s)  
  else
    ShowMessage();
end;

var
  sr: TSearchRec;     
  Attr: Integer;      
  s: string;          
  List: TStringList;  
begin
  s := ;
  Attr := faAnyFile;              
  List := TStringList.Create;     

  if FindFirst(s,Attr,sr)= then  
  begin
    repeat                        
      List.Add(sr.Name);          
    until(FindNext(sr)<>);       
  end;
  FindClose(sr);                  

  ShowMessage(List.Text);         
  List.Free;                      

  
  
  
  
  
  
  
  
  
  
  

  
  
end;

var
  FileName: string;
  Attr: Integer;  
begin
  FileName := ;
  Attr := FileGetAttr(FileName);
  ShowMessage(IntToStr(Attr));  

  
  Attr := FILE_ATTRIBUTE_READONLY or FILE_ATTRIBUTE_HIDDEN;
  if FileSetAttr(FileName,Attr)= then  
    ShowMessage();

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
end;

var
  FileName: string;
  ti: Integer;
  dt: TDateTime;
begin
  FileName := ;
  ti := FileAge(FileName);
  ShowMessage(IntToStr(ti));  

  dt := FileDateToDateTime(ti);  
  ShowMessage(DateTimeToStr(dt));  
end;
轉自萬一老師：http://www.cnblogs.com/del/archive/2007/12/12/992043.html
http://www.cnblogs.com/del/archive/2007/12/12/992462.html