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IsSameDay、IsToday - 判断是不是同一天、判断是不是今天
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,t3,t4: TDateTime;
b: Boolean;
begin
t1 := StrToDateTime('2009-1-21');
t2 := StrToDateTime('2009-1-21');
t3 := StrToDateTime('2009-5-21');
t4 := Now;
{判断是不是同一天}
b := IsSameDay(t1, t2); //True
b := IsSameDay(t1, t3); //False
{判断给定时间和当前时间是不是同一天}
b := IsToday(t1); //False
b := IsToDay(t4); //True
// ShowMessage(BoolToStr(b, True));
end;
end.
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