in , ssLeft Shift, , .
, , (Pen):
Image.Canvas.Pen.Color:= clRed;
(Color) (Pen) (clRed). . ϳ .
. , Image () : , , Image . Image ( 䳿 OnPaint).
3.
, Circle (). GroupIndex 1: Color Circle . AllowAllUp true, Circle (/ ).
Circle , .
ChildUnit , :
xc, yc: Integer;
Image 䳿 OnMouseDown :
// Circle
If MainForm.Circle.Down Then
Begin
xc:= X; //
yc:= Y; //
Image.Canvas.Ellipse(xc-100, yc-100, xc+100, yc+100);
End;
. , Down () Circle, , , uses MainUnit;
. , .
, , 䳿 :
if ssLeft in Shift Then //
// Circle
If MainForm.Circle.Down Then
Begin
//
Image.Canvas.Ellipse(xc-100, yc-100, xc+100, yc+100);
xc:= X; //
yc:= Y; //
//
Image.Canvas.Ellipse(xc-100, yc-100, xc+100, yc+100);
end //
else Image.Canvas.LineTo(X, Y);
, , . :
Image.Canvas.Pen.Mode:= pmNotXor;
䳿 OnCreate ( ) Child.
1. Canvas? TCanvas.
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2. If ssLeft in Shift Then Image. Canvas. LineTo (X, Y);
3. Image ?
4. Down, GroupIndex AllowAllUp .
5. ᒺ?
1. (). .
2. : , , . .
3. ( , ).
4. ( , ).
5. , . .
6. ( Image). Image.
7. .
8. ( ).
9. .
10. .
11. .
12. .
13. . . .
14. ( ) . .
15. . . .
8
: .
: Object Pascal Delphi.
, a[10] .
1. a 10 . , a ( a ).
2. TEdit TButton a[10]. , TEdit. .
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3. Count, .
:
Var
Code: Integer;
begin
//
inc(Count);
If Count ≤ 10 Then Val(Edit1.Text, a[Count], Code);
Edit1.Text:= ; //
end;
( Count) , Edit1.Text a[Count]. Val. . Code ( ). , Code 0.
4. . . Edit1.Text .
5. Button1 ( Default true) Button1Click Enter.
6. - .
TListBox, . TListBox Items.
7. TButton . :
Var
i: Integer; //
//
max: Real;
begin
max:= a[1];
for i:= 1 to 10 do //
Begin
If a[i] > max Then max:= a[i];
ListBox1.Items.Add(IntToStr(i) + + FloatToStr(a[i]));
End;
ListBox1.Items.Add( + FloatToStr(max));
end ;
. IntToStr(i), FloatToStr(a[i]) ListBox1 Add. . () StrToInt, StrToFloat.
1. ? ?
2. ( ) ?
3. TListBox? TListBox.
1. 12 . . .
2. 10 . . .
3. 10 . , . .
4. 12 . . .
5. 10 . , ( ). .
6. X[10]. .
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7. [10], ≤ -2 x ≥ 2. .
8. A[10] . .
9. A[8] . .
10. A[5] . .
11. a[10] .
12. a[12] , ≤ -3 ≥ 1. .
13. a[10] . .
14. 8 . , 2 3. .
15. 12 . , 2 3. .
9
: ().
: 㳺 () Object Pascal Delphi.
TStringGrid ( Additional).
TStringGrid:
ColCount .
RowCount .
+Options
goEditing ( Enter F2 ).
goAlwaysShowEditor ( goEditing).
, goEditing goAlwaysShowEditor true.
Cells.
property Cells[ACol, ARow: Integer]: String;
Cells ( String), .
ACol, ARow ( ). .
StringGrid1:
Var
//
Sum: Integer;
i, j: Integer; //
Begin
Sum:= 0;
For i:= 1 To StringGrid1.ColCount-1 do
For j:= 1 To StringGrid1.RowCount-1 do
Sum:= Sum + StrToInt(StringGrid1.Cells[i, j]);
Edit1.Text:= IntToStr(Sum); //
end;
. .
1. TStringGrid? , TStringGrid.
2. TStringGrid? TStringGrid?
3. Cells.
A[5][5] . .
F(4, 5) . .
T(5, 5). .
A[5][6] .
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ϳ X[5][3], : -2 ≤ Xj ≤ 3. .
[5][5], -10 ≤ Xj ≤ 10, [5][5], . , .
[5][4]. .
[4][5]. .
A(5, 5) , . , .
A(4, 5), , , . .
A(5, 5), . .
A(5, 5), . .
A(5, 5) . .
A(5, 5) , , . .
A(5, 5), 2, 2, 3 3, 4 4, 5 5. .
10
: .
: , Delphi.
. .
1. ϳ : 2 = 2 + b2, a, b, c . 5 ϳ.
2. N ( , N, ).
3. , ( , ).
4. , , , .
5. , 20 Գ, :
F1 = 1; F2 = 1;
Fi+2 = Fi+1 + Fi (i ≥ 1). , F3 =2, F4 =3.
6. Գ (. ) 1,618. Գ, . .
7. ϳ . n! = 1×2×3××n.
8. . ϳ , , . , , . , 䒺 -7.16 -8. .
9. , , 12. ϳ : , , 12:00.
10. m n (0 < m ≤ 12, 0 ≤ n < 60), . ( ), .
11. x, y, z. , , x, y, z. x, y, z. .
12. x, y, z. , x < y < z. , .
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13. a, b, c. a x2+ b x+ c = 0 . , . , .
14. t 0 100 T, T = 9/5*t + 32. , ( ).
15. ( ).
: .
: , 㳿 .
(
)
1. ³ . 0 99, . . ϳ , . .
2. . , . , . .
3. . . , , . .
4. . ( , : , , , , , ). ϳ . , . , .
5. ( ) ( ), ( ). : , ; ( ).
6. ϒ.
7. .
8. ( , ).
9. . , . ᒿ. .
10. . ᒺ ( ). -. .
11. Scorch ( . ).
12. ( ).
( 㳿 )
13. .
14. -.
15. , , .
: .
: Object Pascal Delphi.
( )
1. R[N] , Z[N], N=10.
2. Y Z X[10].
3. X[14], -10 ≤ X ≤ 10, Y, .
4. 12 . ϳ, , .
5. 15 . , .
6. 14 . ( , ).
7. 12 . , (, 1, -34, 8, 14, -5 3 ).
8. , 0. , 0.
9. 10 , 䒺 . , .
10. 10 . , 䒺 .
11. 8 . , . ( ) .
12. 10 . , , .
13. 5 . , (, ).
14. 10 . . .
15. 12 : , . .
1. .., .. . .: , 1988. 320 .
2. .., . . . . .: , 1993. 447 .
3. . Delphi 5. . .: , 2000. 512 .
4. . . Object Pascal Delphi. .: , 1999. 224 .
5. . . Delphi 6. .: , 2002. 1120 .
6. . Delphi 5: . .: , 2002. 640 .
7. . + = . .: , 1985. 406 .
8. .., .. : V 6.0, , . .: , 1993. 440 c.
9. . Delphi 4. : . . .: , 1998. 800 .
10. . Delphi 4 . .: , 1999. 1120 .
11. .. TURBO PASCAL - . .: , 1992. 192 c.
12. . . . . . .: , 1988. 207 .
13. . Delphi 4. . .: , 1999. 752 c.
14. . Borland Delphi 6. . . . .: , 2001. 1120 .
15. . Delphi 5. . 1. : . . .: , 2001. 839 .
16. . Delphi 5. . 2. : . . .: , 2001. 992 .
17. . Delphi 6: . .: , 2002. 352 .
18. . Delphi 6: . .: , 2002. 512 .
