Delphi 控件交换数据

一：GUI 界面： 

       

 代码如下：

unit Unit3_3;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ComCtrls, Buttons, CheckLst, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    ListBox1: TListBox;
    CheckListBox1: TCheckListBox;
    SpeedButton1: TSpeedButton;
    SpeedButton2: TSpeedButton;
    Button1: TButton;
    Button3: TButton;
    Button2: TButton;
    Edit1: TEdit;
    SpeedButton3: TSpeedButton;
    SpeedButton4: TSpeedButton;
    procedure SpeedButton1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure SpeedButton3Click(Sender: TObject);
    procedure SpeedButton2Click(Sender: TObject);
    procedure SpeedButton4Click(Sender: TObject);
  private
      { Private declarations }

  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}


procedure TForm1.SpeedButton1Click(Sender: TObject);
var i:integer;
begin
i:=CheckListBox1.Items.Count-1;
while i>=0 do
  begin
    if CheckListBox1.Checked[i] then
       ListBox1.Items.Add(CheckListBox1.Items.Strings[i]);
    i:=i-1;
  end;

end;


procedure TForm1.Button2Click(Sender: TObject);
begin
if Edit1.Text<>'' then
CheckListBox1.Items.Add(Edit1.Text);
edit1.Text:='';
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
Form1.Close;
end;

procedure TForm1.Button3Click(Sender: TObject);
var i:integer;
begin
i:=ListBox1.Items.Count-1;
while i>=0 do
  begin
   ListBox1.Items.Delete(i);
   i:=i-1;
  end;
end;

procedure TForm1.SpeedButton3Click(Sender: TObject);
var i:integer;
begin
i:=CheckListBox1.Items.Count-1;
while i>=0 do
  begin
    if CheckListBox1.Checked[i] then
       CheckListBox1.Items.Delete(i);
    i:=i-1;
  end;
end;

procedure TForm1.SpeedButton2Click(Sender: TObject);
var i,k:integer;
begin
k:=CheckListBox1.Items.Count-1;
i:=0;
while i<=k do
  begin
   ListBox1.Items.Add(CheckListBox1.Items.Strings[i]);
   i:=i+1;
  end;
end;
procedure TForm1.SpeedButton4Click(Sender: TObject);
var i:integer;
begin
i:=ListBox1.Items.Count-1;
while i>=0 do
  begin
    if ListBox1.Selected[i] then
        ListBox1.Items.Delete(i);
    i:=i-1;
  end;

end;

end.