unit3.pas

这是一个工资管理系统

unit Unit3;

interface

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

type
  TForm3 = class(TForm)
    Image1: TImage;
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    Button2: TButton;
    ADOTable1: TADOTable;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form3: TForm3;
implementation
  uses unit1,unit2;
{$R *.dfm}

procedure TForm3.Button1Click(Sender: TObject);
begin
  if form3.Caption='欢迎注册工资管理系统' then
   begin
    form3.ADOTable1.Close;
    form3.ADOTable1.Open;
    form3.ADOTable1.Active:=true;
    form3.ADOTable1.Insert;
    form3.ADOTable1.FieldByName('用户名').AsString:=edit1.Text;
    form3.ADOTable1.FieldByName('密码').AsString:=edit2.Text;
    form3.ADOTable1.FieldByName('权限').AsString:='普通用户';
    form3.ADOTable1.Post;
    showmessage('注册成功');
    form3.Edit1.Text:='';
    form3.Edit2.Text:='';
   end
  else
   begin
    form3.ADOTable1.Close;
    form3.ADOTable1.Open;
    form3.ADOTable1.Active:=true;
    form3.ADOTable1.Insert;
    form3.ADOTable1.FieldByName('用户名').AsString:=edit1.Text;
    form3.ADOTable1.FieldByName('密码').AsString:=edit2.Text;
    form3.ADOTable1.FieldByName('权限').AsString:='管理员';
    form3.ADOTable1.Post;
    showmessage('添加成功');
    form3.Edit1.Text:='';
    form3.Edit2.Text:='';
   end;
end;

procedure TForm3.Button2Click(Sender: TObject);
begin
  edit1.Text:='';
  edit2.Text:='';
end;

procedure TForm3.FormClose(Sender: TObject; var Action: TCloseAction);
begin
 if form3.Caption='欢迎注册工资管理系统' then
   form1.Show
   else  form2.Show;
end;

end.