1: a: array of array of integer; for i:=low(a) to hight(a) do for..... 2: 看情况,如果form1不是主窗体并且在form的OnCloseXXX中没有指定cafree动作,Only Hide,如果是主窗体,就会free掉。 3: var sp:=tspeedbutton.create(self) ...... sp.free; 4: OnMouseDown or OnMouseUp: if (ssright in shift) and (ssleft in shift) then
1、 var a:array[0..99,1..100] of integer; Low(a), High(a); //取得第一维的下限、上限。 Low(a[0]), High(a[0]); //取得第二维的下限、上限。4、 procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer); begin if (ssleft in shift) and (ssright in shift) then showmessage('both down'); end;
a: array of array of integer;
for i:=low(a) to hight(a) do
for.....
2:
看情况,如果form1不是主窗体并且在form的OnCloseXXX中没有指定cafree动作,Only Hide,如果是主窗体,就会free掉。
3:
var
sp:=tspeedbutton.create(self)
......
sp.free;
4:
OnMouseDown or OnMouseUp:
if (ssright in shift) and (ssleft in shift) then
var a:array[0..99,1..100] of integer; Low(a), High(a); //取得第一维的下限、上限。
Low(a[0]), High(a[0]); //取得第二维的下限、上限。4、
procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
if (ssleft in shift) and (ssright in shift) then
showmessage('both down');
end;