WeeksInAYear、WeeksInYear、DaysInAYear、DaysInAMonth、DaysInYear、DaysInMonth - 獲取指定年月的周、日數
DateUtils.DaysInYear();
DateUtils.DaysInMonth();
DateUtils.DaysInAYear();
DateUtils.DaysInAMonth();
DateUtils.WeeksInYear();
DateUtils.WeeksInAYear();
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
dt: TDateTime;
w: Word;
begin
dt := StrToDateTime('2009-5-20 11:22:33');
{指定日期所在年的總天數}
w := DaysInYear(dt); //365
{指定日期所在月的總天數}
w := DaysInMonth(dt); //31
{指定年的總天數}
w := DaysInAYear(2009); //365
{指定年、指定月的總天數}
w := DaysInAMonth(2009, 5); //31
{指定日期所在年的總周數}
w := WeeksInYear(dt); //53
{指定年的總周數}
w := WeeksInAYear(2009); //53
end;
end.