unit1.pas

应用ADO技术在Delphi中进行客户信息管理系统的开发。系统设计分为数据库设计和功能模块设计两部分。本系统的数据分为两部分：客户信息和系统用户信息。所以要设计两个表：Customers和Users

unit Unit1;

interface

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

type
  TFrmMain = class(TForm)
    MainMenu1: TMainMenu;
    Operate: TMenuItem;
    Support: TMenuItem;
    Query: TMenuItem;
    Help: TMenuItem;
    Login: TMenuItem;
    Exit: TMenuItem;
    About: TMenuItem;
    N2: TMenuItem;
    N1: TMenuItem;
    Image1: TImage;
    Label1: TLabel;
    Logout: TMenuItem;
    procedure LogoutClick(Sender: TObject);
    procedure AboutClick(Sender: TObject);
    procedure ExitClick(Sender: TObject);
    procedure SupportClick(Sender: TObject);
    procedure QueryClick(Sender: TObject);
    procedure LoginClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  FrmMain: TFrmMain;

implementation

uses Unit3, Unit4, Unit5, Unit6;

{$R *.dfm}

procedure TFrmMain.LoginClick(Sender: TObject);
begin
  FrmLogin.ShowModal;
end;

procedure TFrmMain.QueryClick(Sender: TObject);
begin
  FrmQuery.ShowModal;
end;

procedure TFrmMain.SupportClick(Sender: TObject);
begin
  FrmSupt.ShowModal;
end;

procedure TFrmMain.AboutClick(Sender: TObject);
begin
  FrmAbout.ShowModal;
end;

procedure TFrmMain.ExitClick(Sender: TObject);
begin
  close;
end;

procedure TFrmMain.LogoutClick(Sender: TObject);
begin
  Login.enabled:=true;
  Logout.enabled:=false;
end;

end.