unit1.pas

来自「Delphi函数参考大全的CD」· PAS 代码 · 共 43 行

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  FRate,FPresentValue:Extended;
  FYear,FNow:integer;
begin
  FRate:=0.06;
  FPresentValue:=80000;
  FYear:=10;
  FNow:=1;
edit1.Text:=floattostr(interestpayment(FRate/ 12, FNow, FYear*12, FPresentValue,
 0,ptEndOfPeriod));
end;


end.