unit1.pas

来自「本光盘是《Delphi 7应用教程》一书的配套光盘」· PAS 代码 · 共 42 行

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    ButtonDisplay: TButton;
    ButtonClear: TButton;
    procedure ButtonDisplayClick(Sender: TObject);
    procedure ButtonClearClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.ButtonDisplayClick(Sender: TObject);
begin
  Edit1.Text:='你好，中国';   //设置Edit1的Text属性为“你好，中国”
  Edit1.Font.Color:=clBlue;   //设置字体颜色为蓝色
  Edit1.Font.Size:=18;        //设置字号为18号
end;

procedure TForm1.ButtonClearClick(Sender: TObject);
begin
  Edit1.Text:='';              //清除编辑框中的文本
end;

end.