DELPHI 动态 创建和释放 多个 EDIT 控件

unit Unit1;

interface

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

type
TForm1 = class(TForm)
pnl1: TPanel;
btn1: TButton;
btn2: TButton;
procedure btn1Click(Sender: TObject);
procedure btn2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;
editm:array of tedit;

implementation

{$R *.dfm}

//动态创建EDIT控件
procedure TForm1.btn1Click(Sender: TObject);
var
i,d,j:integer;
begin
d:=0;
j:=3;
setlength(editm,j);
for   i:=0   to   j-1   do
begin
editm[i]:=tedit.Create(self);
editm[i].Parent:=pnl1;
editm[i].Width:=120;
editm[i].Height:=20;
editm[i].Left:=0;
editm[i].Top:=0+d;
editm[i].Name:= 'edit'+inttostr(i);
editm[i].Text:= 'edit'+inttostr(i);
editm[i].Visible:=true;
d:=d+20;
end;
end;
//销毁创建的EDIT控件
procedure TForm1.btn2Click(Sender: TObject);
var
i:Integer;
begin
for i:=0 to 2 do
begin
editm[i].free;
end;
end;

end.