教育系统应用

开发平台：
Delphi

Unit3.pas：源码内容
							unit Unit3;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Menus, ExtCtrls, ComCtrls, StdCtrls, DB, DBTables, jpeg;
type
  Tmainform = class(TForm)
    MainMenu1: TMainMenu;
    N1: TMenuItem;
    N2: TMenuItem;
    N3: TMenuItem;
    N4: TMenuItem;
    N6: TMenuItem;
    N7: TMenuItem;
    N8: TMenuItem;
    StatusBar1: TStatusBar;
    Timer1: TTimer;
    Panel1: TPanel;
    Label2: TLabel;
    Query3: TQuery;
    Query3qx: TStringField;
    N10: TMenuItem;
    N9: TMenuItem;
    N13: TMenuItem;
    N14: TMenuItem;
    N15: TMenuItem;
    N16: TMenuItem;
    N17: TMenuItem;
    Image1: TImage;
    N5: TMenuItem;
    N11: TMenuItem;
    N12: TMenuItem;
    N18: TMenuItem;
    N19: TMenuItem;
    procedure N8Click(Sender: TObject);
    procedure N7Click(Sender: TObject);
    procedure N6Click(Sender: TObject);
    procedure N4Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
   // procedure Timer1Timer(Sender: TObject);
    procedure FormActivate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure N9Click(Sender: TObject);
    procedure N13Click(Sender: TObject);
    procedure N14Click(Sender: TObject);
    procedure N15Click(Sender: TObject);
    procedure N16Click(Sender: TObject);
    procedure N17Click(Sender: TObject);
    procedure N3Click(Sender: TObject);
    procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
    procedure N12Click(Sender: TObject);
    procedure N18Click(Sender: TObject);
    procedure N19Click(Sender: TObject);
 //   procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
 password,username:string;
// papertime:integer;
 updateno:integer;
    { Public declarations }
  end;
var
  mainform: Tmainform;
  havelogin:boolean;
implementation
uses Unit2,Unit4,Unit5,Unit1, Unit6, Unit7, Unit8, Unit9, Unit10, Unit11,
  Unit12, Unit15, Unit16, Unit17, Unit21, Unit20;
{$R *.dfm}
procedure Tmainform.N8Click(Sender: TObject);
begin
if (messagedlg('确认要退出系统吗 ？',mtconfirmation,[mbyes,mbno],0))=mryes then
application.Terminate;
 end;
procedure Tmainform.N7Click(Sender: TObject);
begin
restoreform.show;
end;
procedure Tmainform.N6Click(Sender: TObject);
begin
backupform.Show;
end;
procedure Tmainform.N4Click(Sender: TObject);
begin
changemi.show;
end;
procedure Tmainform.FormCreate(Sender: TObject);
Const
  count=2000;//显示欢迎窗体的最少时间（毫秒）
var
 st,et:Integer;
begin
//papertime:=0;
havelogin:=false;
label2.Caption:='欢迎使用通用试卷生成系统!            ';
Label2.Left:=300;
statusbar1.Panels[2].Text:=DateToStr(Date);
 statusbar1.Panels[3].Text:=TimeToStr(time);
  //记录开始时间
 st:=GetTickCount;
  welcomeform:=Twelcomeform.Create(Application);
  welcomeform.Show;
  welcomeform.Update;
  //初始化程序
  //记录结束时间
  et:=GetTickCount;
  if et-st<count then	//是否显示够了规定时间
    Sleep(count-(et-st));
  welcomeform.Close;
  welcomeform.Free;
//if query3.FieldByName('qx').AsString ='b' then
//form3.N3.Enabled:=false;
//else
//if query3.FieldByName('qx').AsString ='a' then
//form3.N3.Visible:=true;
end;
procedure Tmainform.FormActivate(Sender: TObject);
var
t:integer;
begin
if not havelogin then
begin
loginform.show;
end;
   t:=StatusBar1.Top+2;
   Panel1.Top:=t;
//if query3.FieldByName('qx').AsString ='b' then
//form3.N3.Visible:=false ;
//else
//if query3.FieldByName('qx').AsString ='a' then
//form3.N3.Visible:=true;
end;
procedure Tmainform.Timer1Timer(Sender: TObject);
begin
//字幕从左向右移动，这儿可以修改成任意方向的
   //移动，请读者自己完成。
   label2.Left:=label2.Left -1;
   ///当整个label移动出了panel的边界后，
   //重新开始
    if(label2.Left<=-180 ) then
     label2.Left :=300;
 //  if(label2.Left>=StatusBar1.Panels[0].Width ) then
    // label2.Left :=-label2.Width;
end;
procedure Tmainform.N9Click(Sender: TObject);
begin
chooseform.show;
end;
procedure Tmainform.N13Click(Sender: TObject);
begin
filltextform.show;
end;
procedure Tmainform.N14Click(Sender: TObject);
begin
judgeform.show;
end;
procedure Tmainform.N15Click(Sender: TObject);
begin
readproform.show;
end;
procedure Tmainform.N16Click(Sender: TObject);
begin
definepaperform.show;
DataModule4.Table_shijuan.Close;
DataModule4.Table_shijuan.Open;
end;
procedure Tmainform.N17Click(Sender: TObject);
begin
procedureform.show;
end;
procedure Tmainform.N3Click(Sender: TObject);
begin
DataModule4.Table_u.Close;
DataModule4.Table_u.Open;
usermanage.Show;
end;
procedure Tmainform.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
if (messagedlg('确认要退出系统吗 ？',mtconfirmation,[mbyes,mbno],0))=mryes then
application.Terminate;
end;
procedure Tmainform.N12Click(Sender: TObject);
begin
loginform.ComboBox1.Text:='';
loginform.Edit1.Text:='';
loginform.Show;
end;
procedure Tmainform.N18Click(Sender: TObject);
begin
rightform.Show;
end;
procedure Tmainform.N19Click(Sender: TObject);
begin
papermanageform.Show;
end;
end.

						