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var
  TF: TextFile;
  LogFile: string;
  txt :string;
  sysDir:string;
//´´½¨°´Å¥
procedure TForm1.Button1Click(Sender: TObject);
begin
   sysDir:=extractfilepath(application.ExeName );
   if not directoryexists(sysdir+'log\') then
      createdir(sysdir+'log\');
   logfile:=sysdir+'log\'+formatdatetime('yyyymmdd',now)+'.txt';  
end;
//дÈÕÖ¾°´Å¥
procedure TForm1.Button2Click(Sender: TObject);
begin
 //assignfile(logfile,'log.txt');
  AssignFile(tf,logfile);
 if fileexists(logfile) then
   append(tf)
 else
   rewrite(tf);
 writeln(tf,'123');
 closefile(tf);
end;
    
     
	
	
    
    
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procedure TForm1.Button3Click(Sender: TObject);
var
 Sd: TSecurityDescriptor;
 begin
   InitializeSecurityDescriptor(@Sd, SECURITY_DESCRIPTOR_REVISION);
    SetSecurityDescriptorDacl(@Sd, true, Nil, false);
    RegSe ......
	
    
        
    
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var
   s:string;
   ps:Pchar;
   b:pbyte;
   len:integer;
begin
 &nb ......