Question

Delphi如何用timer实现label字体颜色随机改变

Answer 1

加一个timer控件，
onteimer事件为

label1.Font.Color:=rgb(random(255),random(255),random(255));

Answer 2

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, StdCtrls;

type
TForm1 = class(TForm)
Label1: TLabel;
Timer1: TTimer;
procedure Timer1Timer(Sender: TObject);
private
{ Private declarations }
m_Color:integer;
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Timer1Timer(Sender: TObject);
begin
m_Color:=m_Color+100;
if m_Color >50000 then m_Color:=0;
Label1.Font.Color:=m_Color;
end;

end.