Delphi 2009之TStringBuilder類[4]: Insert與Remove

unit Unit1;

interface
uses
　Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
　Dialogs, StdCtrls;
type
　TForm1 = class(TForm)
　　Button1: TButton;
　　procedure Button1Click(Sender: TObject);
　end;

var

　Form1: TForm1;
implementation
{$R *.dfm}

//TStringBuilder 的插入與刪除

procedure TForm1.Button1Click(Sender: TObject);
var
　sb: TStringBuilder;
begin
　sb := TStringBuilder.Create;
　sb.Append('CodeGear 2007');
　sb.Insert(Length('CodeGear '), 'Delphi ');
　ShowMessage(sb.ToString);　　　{CodeGear Delphi 2007}
　sb.Remove(Length('CodeGear Delphi'), Length(' 2007'));
　ShowMessage(sb.ToString);　　　{CodeGear Delphi}
　sb.Insert(sb.Length, ' 2009');
　ShowMessage(sb.ToString);　　　{CodeGear Delphi 2009}
　sb.Free;
end;

end.