IncYear、IncMonth、IncWeek、IncDay、IncHour、IncMinute、IncSecond、IncMilliSecond - 增时

DateUtils.IncYear();

DateUtils.IncMonth();

DateUtils.IncWeek();

DateUtils.IncDay();

DateUtils.IncHour();

DateUtils.IncMinute();

DateUtils.IncSecond();

DateUtils.IncMilliSecond();


 
   

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;

  i: Int64;

  d: Double;

begin

  t1 := StrToDateTime('2011-1-1 1:1:1');



  t2 := IncYear(t1);

  ShowMessage(DateTimeToStr(t2)); //2012-1-1 1:01:01



  t2 := IncYear(t1, 3);

  ShowMessage(DateTimeToStr(t2)); //2014-1-1 1:01:01



  t2 := IncMonth(t1);

  ShowMessage(DateTimeToStr(t2)); //2011-2-1 1:01:01



  t2 := IncWeek(t1);

  ShowMessage(DateTimeToStr(t2)); //2011-1-8 1:01:01



  t2 := IncDay(t1);

  ShowMessage(DateTimeToStr(t2)); //2011-1-2 1:01:01



  t2 := IncHour(t1);

  ShowMessage(DateTimeToStr(t2)); //2011-1-1 2:01:01



  t2 := IncMinute(t1);

  ShowMessage(DateTimeToStr(t2)); //2011-1-1 1:02:01



  t2 := IncSecond(t1);

  ShowMessage(DateTimeToStr(t2)); //2011-1-1 1:01:02



  t2 := IncMilliSecond(t1);

  ShowMessage(FormatDateTime('yyyy-m-d h:n:s:zzz', t2)); //2011-1-1 1:01:01:001

end;



end.

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DateUtils-Function

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