详测 Generics Collections TList (4): AddRange、InsertRange、DeleteRange

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}

uses Generics.Collections;

procedure TForm1.Button1Click(Sender: TObject);
var
  List,ListTmp: TList<Byte>;
  i: Byte;
  str: string;
begin
  List := TList<Byte>.Create();
  List.AddRange([11,22,33]);

  str := '';
  for i in List do str := str + IntToStr(i) + ' '; {11 22 33 }
  ShowMessage(str);

  ListTmp := TList<Byte>.Create();
  ListTmp.AddRange([44,55]);

  List.AddRange(ListTmp);
  str := '';
  for i in List do str := str + IntToStr(i) + ' '; {11 22 33 44 55 }
  ShowMessage(str);

  List.InsertRange(1, ListTmp);
  str := '';
  for i in List do str := str + IntToStr(i) + ' '; {11 44 55 22 33 44 55 }
  ShowMessage(str);

  List.DeleteRange(1, 5);
  str := '';
  for i in List do str := str + IntToStr(i) + ' '; {11 55 }
  ShowMessage(str);
  
  ListTmp.Free;
  List.Free;
end;

end.