أبدأ مع لغة الباسكال ObjectPascal

1- إظهار نص على إطار MSDOS
الكود التالي يرينا كيف نكتب نص على الشاشة السوداء Console

program HelloConsole;



{$APPTYPE CONSOLE}

var
  strMessage: string;

begin
  strMessage := 'Hello, World';
  writeln (strMessage);
  // wait until the Enter key is pressed
  readln;
end.

إظهار نص على مختلف الأنظمة :IOS -  ANDROID و MSWINDOWS

unit HelloPlatformForm;

interface

uses
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.StdCtrls,
  FMX.Controls.Presentation;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.fmx}

procedure TForm1.Button1Click(Sender: TObject);
begin
  {$IFDEF IOS}
    ShowMessage ('Running on iOS');
  {$ENDIF}

  {$IFDEF ANDROID}
    ShowMessage ('Running on Android');
  {$ENDIF}

  {$IFDEF MSWINDOWS}
    ShowMessage ('Running on Windows');
  {$ENDIF}
end;

end.

3- بعض التصريحات والمتغيرات : 

unit IdentifiersTestForm;

interface

uses
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs;

type
  TForm1 = class(TForm)
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

  // classic identifiers
  MyValue: Integer;
  Value1: Integer;
  My_Value: Integer;
  _Value: Integer;
  Val123: Integer;
  _123: Integer;
  Cantu: Integer;

  // valid unicode identifiers
  Cantù: Integer;
  结: Integer;
  画像: Integer;
  ☼: Integer;
  ⒈5: Integer;

  // invalid identifiers
  // 123: Integer;
  // 1Value: Integer;
  // My Value: Integer;
  // My-Value: Integer;
  // My%Value: Integer;


implementation

{$R *.fmx}

end.