unit UCommon; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, Buttons, ToolWin, ComCtrls, ImgList, ActnList, Menus, jpeg; type TForm_Common = class(TForm) Edit1: TEdit; Label1: TLabel; Label2: TLabel; Edit2: TEdit; ComboBox1: TComboBox; Label3: TLabel; Label4: TLabel; ListBox1: TListBox; Memo1: TMemo; Label5: TLabel; procedure FormCreate(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form_Common: TForm_Common; implementation {$R *.dfm} procedure TForm_Common.FormCreate(Sender: TObject); begin //编辑框中的文本 Edit1.Text :='0'; Edit2.Text :='0'; //设置组合框的风格为下拉列表,不允许用户编辑文本 Combobox1.Style := csDropDownList; //设置组合框的初始项 Combobox1.ItemIndex :=0; //设置列表框的初始选项 ListBox1.ItemIndex :=0; //设置多行编辑组件的滚动条 Memo1.ScrollBars :=ssVertical ; Memo1.Text :=''; end; end.