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: TList<Integer>;
i: Integer;
str: string;
begin
List := TList<Integer>.Create();
List.Add(111);
List.Add(222);
List.Add(333);
List.Insert(0, 444);
List.Insert(2, 555);
str := '';
for i in List do str := str + UIntToStr(i) + ' '; {444 111 555 222 333 }
ShowMessage(str);
List.Delete(0);
List.Delete(List.Count-1);
str := '';
for i in List do str := str + UIntToStr(i) + ' '; {111 555 222 }
ShowMessage(str);
List.Remove(555); {刪除指定元素}
str := '';
for i in List do str := str + UIntToStr(i) + ' '; {111 222 }
ShowMessage(str);
List.Extract(222); {提取指定元素}
str := '';
for i in List do str := str + UIntToStr(i) + ' '; {111 }
ShowMessage(str);
List.Free;
end;
end.