unit2.pas

高校图书管理系统采用Delphi结合数据库

unit Unit2;

interface

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

type
  Tfrm_tjyh = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    Button1: TButton;
    Button2: TButton;
    Query1: TQuery;
    Label3: TLabel;
    Edit3: TEdit;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);

  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frm_tjyh: Tfrm_tjyh;

implementation

{$R *.dfm}

procedure Tfrm_tjyh.Button1Click(Sender: TObject);
begin
if (edit1.text='')or(edit2.text='') then
  begin
 application.MessageBox('请输入用户名或密码！','提示',0);
 exit;
 end
else
 begin
query1.Append;
query1.FieldByName('UserName').AsString:=edit1.Text;
query1.FieldByName('Password').AsString:=edit2.Text;
query1.Post;
application.MessageBox('恭喜你，你已经成为系统的合法用户！','欢迎新用户',0);
close;
end
end;

procedure Tfrm_tjyh.Button2Click(Sender: TObject);
var
a:word;
begin
a:=application.MessageBox('是否取消注册？','确认！',mb_yesno);
if a=idyes then
frm_tjyh.close
 else
  frm_tjyh.Show;
end;

end.