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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.
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