功用一:在框架里面根据存储在数据表中的方法名来动态调用执行方法。
unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;
type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
  published
     procedure Test(Sender: TObject);
  end;
var
  Form1: TForm1;
implementation
{$R *.dfm}
{ TForm1 }
procedure TForm1.Test(Sender: TObject);
begin
  ShowMessage('hello');
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
  @Button1.OnClick := MethodAddress('test')
end;
end.
注:MethodAddress()只能获取published声明的方法地址指针。