unit1.pas

来自「Delphi函数参考大全的CD」· PAS 代码 · 共 48 行

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    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
  means:Array[0..11] of double;
  Res:double;
  i:integer;
  s:string;
begin
  i:=0;
  while (true) do
  begin
    s:=inputbox('输入','输入一个数值：','0');
    if TryStrToFloat(s,means[i]) then
      inc(i);
    if i = 12 then
     Break;
  end;
  Res:=Mean(means);
  showmessage(Floattostr(Res));

end;

end.