DecodeDate、DecodeTime ... DecodeDateTime ... 分解时间

SysUtils.DecodeDate();

SysUtils.DecodeDateFully();

SysUtils.DecodeTime();



DateUtils.DecodeDateTime();

DateUtils.DecodeDateDay();

DateUtils.DecodeDateWeek();

DateUtils.DecodeDateMonthWeek();

DateUtils.DecodeDayOfWeekInMonth();


 
   

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

  t: TDateTime;

  Year, Month, Day, Week: Word;

  Hour, Min, Sec, MSec: Word;

begin

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



  DecodeDate(t, Year, Month, Day);

  ShowMessageFmt('%d,%d,%d', [Year, Month, Day]); //2009,5,21



  DecodeDateFully(t, Year, Month, Day, Week);

    ShowMessageFmt('%d,%d,%d,%d', [Year, Month, Day, Week]); //2009,5,21,5; 最后的 5 表示周四



  DecodeTime(t, Hour, Min, Sec, MSec);

  ShowMessageFmt('%d,%d,%d,%d', [Hour, Min, Sec, MSec]); //11,22,33,999



  DecodeDateTime(t, Year, Month, Day, Hour, Min, Sec, MSec);

  ShowMessageFmt('%d,%d,%d,%d,%d,%d,%d', [Year, Month, Day, Hour, Min, Sec, MSec]); //2009,5,21,11,22,33,999



  DecodeDateDay(t, Year, Day);

  ShowMessageFmt('%d,%d', [Year, Day]); //2009,141; 2009 年第 141 天



  DecodeDateWeek(t, Year, Week, Day);

  ShowMessageFmt('%d,%d,%d', [Year, Week, Day]); //2009,21,4; 2009 年第 21 周, 周 4



  DecodeDateMonthWeek(t, Year, Month, Week, Day);

  ShowMessageFmt('%d,%d,%d,%d', [Year, Month, Week, Day]); //2009,5,3,4; 2009 年 5 月的第 3 周, 周 4



  DecodeDayOfWeekInMonth(t, Year, Month, Week, Day);

  ShowMessageFmt('%d,%d,%d,%d', [Year, Month, Week, Day]); //2009,5,3,4

end;





end.

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DateUtils-Function

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