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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls,ScktComp;
type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
ListBox1: TListBox;
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
ServerSocket1:TServerSocket;
implementation
{$R *.dfm}
procedure TForm1.Button2Click(Sender: TObject);
begin
close;
end;
procedure TForm1.Button1Click(Sender: TObject);
var
I : integer;
begin
ListBox1.Items.Clear;
for I := 0 to 10000 do
begin
ServerSocket1.Close;
ServerSocket1.Port := I;
try
ServerSocket1.Open;
except
ListBox1.Items.Add(IntToStr(I) + '端口被打开');
end;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
ServerSocket1:=TServerSocket.Create(self);
ServerSocket1.Active:=true;
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
ServerSocket1.Free;
end;
end.
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