unit1.pas

学习Delphi最好的教材。通过一个个简单而实用的实例

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    FileListBox1: TFileListBox;
    DirectoryListBox1: TDirectoryListBox;
    DriveComboBox1: TDriveComboBox;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    procedure DriveComboBox1Change(Sender: TObject);
    procedure DirectoryListBox1Change(Sender: TObject);
    procedure FileListBox1Change(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.DriveComboBox1Change(Sender: TObject);
begin
  Edit1.Text:=DriveComboBox1.Drive+':';
  //当盘符变化时，把当前盘符显示在Edit1中
end;

procedure TForm1.DirectoryListBox1Change(Sender: TObject);
begin
  Edit2.Text:=DirectoryListBox1.Directory;
  //当目录改变时，将当前目录显示在Edit2中
end;

procedure TForm1.FileListBox1Change(Sender: TObject);
begin
  Edit3.Text:=FileListBox1.FileName;
end;

end.