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delphi 遍历集合类型

发布时间 2023-11-25 12:04:54作者: txgh

遍历集合类型

代码

通过 for-in 循环遍历

uses System.TypInfo;

procedure TForm1.Button1Click(Sender: TObject);
var
  vAnchors: TAnchors;
  vAnchor: TAnchorKind;
begin
  vAnchors := [akLeft, akTop, akBottom];
  for vAnchor in vAnchors do
  begin
    Memo1.Lines.Add(GetEnumName(TypeInfo(TAnchorKind), Ord(vAnchor)));
  end;
end;

通过 for 循环遍历

uses System.TypInfo;

procedure TForm1.Button2Click(Sender: TObject);
var
  vAnchors: TAnchors;
  vAnchor: TAnchorKind;
begin
  vAnchors := [akLeft, akTop, akBottom];
  for vAnchor := Low(TAnchorKind) to High(TAnchorKind) do
  begin
    if vAnchor in vAnchors then
    begin
      Memo1.Lines.Add(GetEnumName(TypeInfo(TAnchorKind), Ord(vAnchor)));
    end;
  end;
end;

参考

delphi 集合类型

delphi 表达式