stringconvertform.pas

来自「source code for the Marco Cantu s book D」· PAS 代码 · 共 54 行

unit StringConvertForm;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TFormStringConvert = class(TForm)
    btnLatin1: TButton;
    Memo1: TMemo;
    btnConcat: TButton;
    btnWarning: TButton;
    btnToFile: TButton;
    btnFromFile: TButton;
    Button1: TButton;
    btnEnsure: TButton;
    procedure btnLatin1Click(Sender: TObject);
    procedure btnConcatClick(Sender: TObject);
    procedure btnWarningClick(Sender: TObject);
    procedure btnToFileClick(Sender: TObject);
    procedure btnFromFileClick(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure btnEnsureClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  FormStringConvert: TFormStringConvert;

implementation

uses
  Character;

{$R *.dfm}

const MaxLoop = 10000;

procedure TFormStringConvert.btnConcatClick(Sender: TObject);
var
  str1, str2: string;
  I: Integer;
  t1: TDateTime;
  str3: Utf8String;
  str4: AnsiString;
begin
  t1 := Now;
  str1 := 'Marco ';
  str2 := 'Cant