unit1.~pas

16位与32位整数转换 整数正负反转 基偶数判断

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Memo1: TMemo;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Edit3: TEdit;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  a1:array[1..2] of Smallint	;
  AA,AB,b:integer;
  c,d:integer;
  i:integer;
begin
   trystrtoint(edit1.Text,aa);
   a1[1]:=aa;
   trystrtoint(edit2.Text,ab);
   a1[2]:=ab;

b:=integer(a1[1]);
c:=High(a1);
d:=low(a1);

label1.Caption:='俱计