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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
procedure TForm1.Button2Click(Sender: TObject);
begin
(Form1.Components[1] as TControl).Font.Name := 'Arial Black';
end;
end.
难道一定要 as TButton 吗？
Font 属性都是由TControl继承的，不是吗？
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
procedure TForm1.Button2Click(Sender: TObject);
begin
(Form1.Components[1] as TControl).Font.Name := 'Arial Black';
end;
end.
难道一定要 as TButton 吗？
Font 属性都是由TControl继承的，不是吗？
