(*
const
MonthDays: array [Boolean] of TDayTable =
((31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31));
*)(*
function IsLeapYear(Year: Word): Boolean;
begin
Result := (Year mod 4 = 0) and ((Year mod 100 <> 0) or (Year mod 400 = 0));
end;
*)uses DateUtils;procedure TForm1.Button1Click(Sender: TObject);
begin
Caption := IntToStr(DaysInMonth(Date));
end;
const
MonthDays: array [Boolean] of TDayTable =
((31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31));
*)(*
function IsLeapYear(Year: Word): Boolean;
begin
Result := (Year mod 4 = 0) and ((Year mod 100 <> 0) or (Year mod 400 = 0));
end;
*)uses DateUtils;procedure TForm1.Button1Click(Sender: TObject);
begin
Caption := IntToStr(DaysInMonth(Date));
end;
补充一下:const MONTHDAYS: array [1..12] of Byte = (31, 28, 31, 30, 31,
30, 31, 31, 30, 31, 30, 31);
function TCalendarBox.GetLastDayOfMonth(const AYear, AMonth: Word): Word;
// 获得某一年某一个月的最后一天.
begin
if AMonth < 0 then AMonth := 12;
Result := MonthDays[AMonth];
if ((AYear mod 4 = 0) and (AYear mod 100 <> 0) or
(AYear mod 400 = 0)) and (AMonth = 2) then
Inc(Result);
end;
语句 if AMonth < 0 then AMonth := 12;
该为: if AMonth < 1 then AMonth := 12
else if AMonth > 12 then AMonth := 1;
还有就是那个 TCalendarBox. 不要了, 实在是不好意思.>> 希望 zswang 不要怪我每次都搅混水. ^_