unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    txtInput: TEdit;
    cmdCalc: TButton;
    txtFind: TEdit;
    txtANSI: TEdit;
    txtWide: TEdit;
    cmdClose: TButton;
    procedure cmdCalcClick(Sender: TObject);
    procedure cmdCloseClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

//以下程序將字符串中的字符的編碼一一找出
procedure TForm1.cmdCalcClick(Sender: TObject);
var
  InputStr,FindStr:String;
  InputStrW,FindStrW:WideString;
begin
  //分別指定String及WindeString
  InputStr:=txtInput.Text;
  InputStrW:=txtInput.Text;
  FindStr:=txtFind.Text;
  FindStrW:=txtFind.Text;
  //使用Pos函數計算結果
  txtANSI.Text:=IntToStr(Pos(FindStr,InputStr));
  txtWide.Text:=IntToStr(Pos(FindStrW,InputStrW));
end;

procedure TForm1.cmdCloseClick(Sender: TObject);
begin
  Close;
end;

end.