unit Unit1;interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls;type TForm1 = class(TForm) Button1: TButton; RadioGroup1: TRadioGroup; procedure RadioGroup1Click(Sender: TObject); procedure FormCreate(Sender: TObject); end;var Form1: TForm1;implementation{$R *.dfm}var R: TRect;procedure TForm1.FormCreate(Sender: TObject);begin RadioGroup1.Items.CommaText := 'Undo,Rect,Bounds'; R := Button1.BoundsRect;end;procedure TForm1.RadioGroup1Click(Sender: TObject);begin case RadioGroup1.ItemIndex of 0: Button1.BoundsRect := R; 1: Button1.BoundsRect := Rect(50,50,100,80); {參數(shù)3、4 是一個(gè)點(diǎn)} 2: Button1.BoundsRect := Bounds(50,50,100,80);{參數(shù)3、4 分別是寬度與高度} end;end;end.
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