Delphi2009之TStringBuilder类[4]:Insert与Remove
Delphi 2009 之 TStringBuilder 类[4]: Insert 与 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 的插入与删除
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.