unit1.~pas

本光盘是《Delphi 7应用教程》一书的配套光盘

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Button1: TButton;
    Label2: TLabel;
    Edit2: TEdit;
    Button2: TButton;
    Button3: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

var
  SFilename,DFilename:string;
{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
   OpenDialog1.Execute ;
   Edit1.Text :=Opendialog1.FileName ;
end;

procedure TForm1.Button2Click(Sender: TObject);
var

  F1, F2: TextFile;
  Ch: Char;
begin
    SFileName:=Edit1.Text ;
    DFileName:=Edit2.text;
    If length(SFilename)<>0 Then
       Begin
        AssignFile(F1, SFileName);
        Reset(F1);
        if  length(DFilename)<>0 Then
           begin
              AssignFile(F2, DFileName);
              Rewrite(F2);
              while not Eof(F1) do
              begin
                  Read(F1, Ch);
                  Write(F2, Ch);
              end;
              CloseFile(F2);
           end
           else
              ShowMessage('目标文件名必须输入');
         CloseFile(F1);
         ShowMessage('文件复制完毕');
       End
      else
         ShowMessage('源文件名必须输入');
end;



procedure TForm1.Button3Click(Sender: TObject);
begin
  Application.Terminate ;
end;

end.