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
{$R *.dfm}
//TStringBuilder.ToString 可以带参数
procedure TForm1.Button1Click(Sender: TObject);
var
sb: TStringBuilder;
begin
sb := TStringBuilder.Create('123456789');
ShowMessage(sb.ToString); {123456789}
ShowMessage(sb.ToString(3, 4)); {4567}
sb.Free;
end;
end.
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$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.