Delphi 2009之TStringBuilder类[7]: ToString

Delphi 2009之TStringBuilder类[7]: ToString2012-02-15 cnblogs 万一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.ToString 可以带参数

procedure TForm1.Button1Click（Sender: TObject）;
var
 sb: TStringBuilder;
begin
 sb := TStringBuilder.Create（"123456789"）;
 ShowMessage（sb.ToString）;    {123456789}
 ShowMessage（sb.ToString（3, 4））; {4567}
 sb.Free;
end;
end.