?? unit1.pas
字號:
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, IdComponent, IdTCPConnection, IdTCPClient,
IdBaseComponent, IdAntiFreezeBase, IdAntiFreeze;
type
TForm1 = class(TForm)
IdAntiFreeze1: TIdAntiFreeze;
IdTCPClient: TIdTCPClient;
EdtHost: TEdit;
EdtPort: TEdit;
EdtData: TEdit;
LbLog: TEdit;
BtnConnect: TButton;
BtnSend: TButton;
BtnDisconnect: TButton;
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Label4: TLabel;
procedure BtnConnectClick(Sender: TObject);
procedure BtnSendClick(Sender: TObject);
procedure BtnDisconnectClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.BtnConnectClick(Sender: TObject);
begin
IdTCPClient.Host := EdtHost.Text;
IdTCPClient.Port := StrToInt(EdtPort.Text);
LbLog.Text:='正在連接 ' + EdtHost.Text + '...';
with IdTCPClient do
begin
try
Connect(5000);
try
LbLog.Text :=(ReadLn());
BtnConnect.Enabled := False;
BtnSend.Enabled := True;
BtnDisconnect.Enabled := True;
except
LbLog.Text:= '遠程主機無響應!';
IdTCPClient.Disconnect();
end;//end try
except
LbLog.Text:= '無法建立到' + EdtHost.Text + '的連接!';
end;//end try
end;//end with
end;
procedure TForm1.BtnSendClick(Sender: TObject);
begin
LbLog.Text:=(EdtData.Text);
with IdTCPClient do
begin
try
WriteLn(EdtData.Text);
LbLog.Text:=(ReadLn());
except
LbLog.Text := '發送數據失敗!';
IdTCPClient.Disconnect();
LbLog.Text:= '同主機 ' + EdtHost.Text + ' 的連接已斷開!';
BtnConnect.Enabled := True;
BtnSend.Enabled := False;
BtnDisconnect.Enabled := False;
end;//end try
end;//end with
end;
procedure TForm1.BtnDisconnectClick(Sender: TObject);
var
Received: string;
begin
LbLog.Text:=('QUIT');
try
IdTCPClient.WriteLn('QUIT');
finally
IdTCPClient.Disconnect();
LbLog.Text:='同主機 ' + EdtHost.Text + ' 的連接已斷開!';
BtnConnect.Enabled := True;
BtnSend.Enabled := False;
BtnDisconnect.Enabled := False;
end;//end try
end;
end.
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