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.