公司考勤和打卡系统源码

【实例简介】公司员工上班下班午休打卡考勤系统，这是一个有过多家应用的实用考勤程序
【实例截图】
【核心代码】procedure Tmainform.N37Click(Sender: TObject);
var
  form:TformSelday;
  i:integer;
begin
  form:=TformSelday.Create(self);
  if (form.ShowModal=1) then
  begin
    bIsEat := true;
    query.SQL.Clear;
    query.SQL.Add('select cdate as 日期, tag as 就餐,people as 姓名,time1 as 午餐,time2 as 晚餐 from eat where cdate=:v1 order by cdate desc');
    if (form.RadioButton1.Checked=true) then
    begin
      query.Parameters.ParamByName('v1').Value:=date;
      sDate := DateToStr(date);
    end
    else
    begin
      query.Parameters.ParamByName('v1').Value:=DateToStr(form.dtpBgn.date);
      sDate := DateToStr(form.dtpBgn.date);
    end;
    query.ExecSQL;
    //query.Active:=true;

    if (query.RecordCount=0) then
    begin
      ShowMessage('没有相关纪录');
      dbgrid1.Visible:=false;
      form.Free;
      exit;
    end;

    datasource1.DataSet:=query;
    dbgrid1.Visible:=true;
    
    for i:=0 to dbgrid1.Columns.Count-1 do
      dbgrid1.Columns[i].Width := dbgrid1.Width div dbgrid1.Columns.Count-1;

    num1:=0;
    num2:=0;
    //统计并设置状态栏
    while (not query.Eof) do
    begin
      if (query.FieldByName('午餐').Value<>'0:00:00') then num1:=num1 1;
      if (query.FieldByName('晚餐').Value<>'0:00:00') then num2:=num2 1;
      query.Next;
    end;
    statusbar1.Panels[0].Text:='共有纪录' inttostr(query.RecordCount) '条';
    statusbar1.Panels[1].Text:='午餐:' inttostr(num1) '人次  晚餐:' inttostr(num2) '人次';
  end;
  form.Free;
end;

procedure Tmainform.N36Click(Sender: TObject);
var
  result:string;
  //qry:TAdoQuery;
begin

  num1:=0;
  num2:=0;

  if (dbgrid1.Visible=false) then exit;
  if bIsEat = false then exit;
  if (dbgrid1.DataSource.DataSet=Nil) then exit;

  if (dbgrid1.DataSource.DataSet.RecordCount=0) then
  begin
    showmessage('没有记录，不能统计');
    exit;
  end;
  
  //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  qry.Close;
  qry.SQL.Clear;
  if sDate = '0' then
  begin
    qry.SQL.Add('select count(*) as num1 from eat where time1<>''0:00:00'' ');
  end
  else
  begin
    qry.SQL.Add('select count(*) as num1 from eat where cdate=:cd and time1<>''0:00:00'' ');
    qry.Parameters.ParamByName('cd').Value := sDate;
  end;

  qry.Open;
  num1 := qry.FieldByName('num1').Value;
  //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  qry.Close;
  qry.SQL.Clear;
  if sDate = '0' then
  begin
    qry.SQL.Add('select count(*) as num2 from eat where time2<>''0:00:00'' ');
  end
  else
  begin
    qry.SQL.Add('select count(*) as num2 from eat where cdate=:cd and time2<>''0:00:00'' ');
    qry.Parameters.ParamByName('cd').Value := sDate;
  end;

  qry.Open;
  num2 := qry.FieldByName('num2').Value;
  //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}
  result:='当前视图:午餐' inttostr(num1) '人次,晚餐' inttostr(num2) '人次';
  showmessage(result);
end;

procedure Tmainform.N34Click(Sender: TObject);
begin
  Application.CreateForm(TfrmEatAdd, frmEatAdd);
  frmEatAdd.ShowModal;
  frmEatAdd.Free;
end;

procedure Tmainform.N39Click(Sender: TObject);
begin
  Application.CreateForm(TfrmBook, frmBook);
  frmBook.ShowModal;
  frmBook.Free;
end;