Delphi 根据字符串找到函数并执行的实例
关键字：MethodAddress：取得方法的地址，这个方法需要是published的。
实例代码：
unit Unit1;
interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls;
type TShowInfo = procedure(info:string) of object;
//声明一个procedure类型，参数和ShowInfo一致 TForm1 = class(TForm) Button1: TButton;
procedure Button1Click(Sender: TObject);
private {
Private declarations }
public {
Public declarations }
published procedure ShowInfo(info:string);
end;
var Form1: TForm1;
implementation {
$R *.dfm}
{
TForm1 }
procedure TForm1.ShowInfo(info: string);
begin ShowMessage(info);
end;
procedure TForm1.Button1Click(Sender: TObject);
var s:TShowInfo;
begin @s := MethodAddress('ShowInfo');
//取得ShowInfo的地址 if @s <> nil then //如果不为空 begin s('中华人民共和国');
//执行 end;
end;
end.
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