DateUtils.IsPM - 判断时间是否是下午

unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls;



type

  TForm1 = class(TForm)

    procedure FormCreate(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



uses DateUtils;



procedure TForm1.FormCreate(Sender: TObject);

var

  t1,t2: TDateTime;

  b1,b2: Boolean;

begin

  t1 := EncodeDateTime(2009, 5, 21, 11, 22, 33, 999);

  t2 := EncodeDateTime(2009, 5, 21, 12, 22, 33, 999);



  b1 := IsPM(t1); //False;

  b2 := IsPM(t2); //True;



  ShowMessage(BoolToStr(b1, True));

  ShowMessage(BoolToStr(b2, True));

end;



end.