main.pas

《Kylix程序设计》一书中附带的例程源代码

unit Main;

interface

uses
  SysUtils, Types, Classes, Variants, QGraphics, QControls, QForms, QDialogs,
  QStdCtrls;

type
  TAddressBook = record
    Name: string;
    Age: Byte;
    BirthDay: record
      Year: Integer;
      Month: Byte;
      Day: Byte;
    end;
    Tel: array [ 0 .. 2 ] of string;
    Home: string;
  end;

  TFrmMain = class(TForm)
    BtnShow: TButton;
    Memo: TMemo;
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure BtnShowClick(Sender: TObject);
  private
    { Private declarations }
    FAddressBook: array of TAddressBook;
    procedure SetAddressBook();
  public
    { Public declarations }
  end;

var
  FrmMain: TFrmMain;

implementation

{$R *.xfm}

procedure TFrmMain.FormCreate(Sender: TObject);
begin
  SetLength( FAddressBook, 2 );
  SetAddressBook();
end;

procedure TFrmMain.FormDestroy(Sender: TObject);
begin
  FAddressBook := nil;
end;

procedure TFrmMain.SetAddressBook;
begin
//  SetLength( FAddressBook, High( FAddressBook ) + 1 );
  FAddressBook[0].Name := 'June';
  FAddressBook[0].Age := 24;
  FAddressBook[0].BirthDay.Year := 1977;
  FAddressBook[0].BirthDay.Month := 6;
  FAddressBook[0].BirthDay.Day := 1;
  FAddressBook[0].Tel[0] := '010-12345678';
  FAddressBook[0].Tel[1] := '13987654321';
  FAddressBook[0].Tel[2] := '010-43218765';
  FAddressBook[0].Home := 'Haidian District, Beijing, PR China';
  FAddressBook[1].Name := 'July';
  FAddressBook[1].Age := 29;
  FAddressBook[1].BirthDay.Year := 1972;
  FAddressBook[1].BirthDay.Month := 5;
  FAddressBook[1].BirthDay.Day := 5;
  FAddressBook[1].Tel[0] := '010-66778899';
  FAddressBook[1].Tel[1] := '13012345678';
  FAddressBook[1].Home := 'Haidian District, Beijing, PR China';
end;

procedure TFrmMain.BtnShowClick(Sender: TObject);
var
  i, j: Integer;
  str: string;
begin
  for i := Low( FAddressBook ) to High( FAddressBook ) do
  begin
    str := FAddressBook[i].Name;
    Memo.Lines.Add( str );
    str := '  ' + IntToStr( FAddressBook[i].Age );
    Memo.Lines.Add( str );
    str := '  ' + IntToStr( FAddressBook[i].BirthDay.Year );
    if FAddressBook[i].BirthDay.Month < 10 then
      str := str + '0' + IntToStr( FAddressBook[i].BirthDay.Month )
    else
      str := str + IntToStr( FAddressBook[i].BirthDay.Month );
    if FAddressBook[i].BirthDay.Day < 10 then
      str := str + '0' + IntToStr( FAddressBook[i].BirthDay.Day )
    else
      str := str + IntToStr( FAddressBook[i].BirthDay.Day );
    Memo.Lines.Add( str );
    for j := 0 to 2 do
    begin
      if not( FAddressBook[i].Tel[i] = '' ) then
        Memo.Lines.Add( FAddressBook[i].Tel[i] );
    end;
    Memo.Lines.Add( FAddressBook[i].Home );
  end;
end;

end.