unit1.pas

来自「Delphi函数参考大全的CD」· PAS 代码 · 共 38 行

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  CustomID:TConvFamily;
  KiloID: TConvType;
  Gram: TConvType;
implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  //自定义一个计量单位
  CustomID:= RegisterConversionFamily('重量');
  KiloID := RegisterConversionType(CustomID,'千克',2);
  Gram := RegisterConversionType(CustomID,'克',0.002);
  Caption := FloatToStr(Convert(1,KiloID,Gram));
end;

end.