Borland Delphi
: , , , .
Delphi i : shortint, smallint, Longint, Int64, Byte, word Longword, .
1.1
| ij | ||
| Shortint | -128..127 | 8 |
| Smallint | -32 768.. 32 767 | 16 |
| Longint | -2 147 483 648.. 2 147 483 647 | 32 |
| Int64 | 64 | |
| Byte | 0..255 | 8 , |
| Word | 0..65 535 | 16 , |
| Longword | 0.. 4 294 967 295 | 32 , |
Delphi - Integer, Longint.
Delphi : Real, single, Double, Extended, comp, Currency. , .
1.2
| ij | |||
| Real | 2.9*E-39..1.7*E38 | 11-12 | |
| Single | 1.5 *E-45..3.4*E 38 | 7-8 | |
| Double | 5.0*E-324..1.7*E308 | 15-16 | |
| Extended | 3.4*E-4932..1.1 *E4932 | 19-20 | |
| Comp | 1.0.. 9.2*E18 | 19-20 | |
| Currency | 0.0001.. 9.2*E14 | 19-20 |
Delphi : Ansichar Widechar:
Ansichar ANSI, 0 255;
widechar Unicode, 0 65 535.
Delphi - Char, Ansichar.
Delphi : shortstring WideString: shortstring ' ' 0 255 ; WideString ' , ' '. WideString Unicode-.
Delphi string. string shortstring.
1.5
True () False (). Delphi Boolean.
2
- , ' ' ' '. ʳ . - , , . ( ) , ' ( ) , () , . - , , , , .. - , . . , . , , , (), . . - ( ), . . array of.
|
|
|
- , , '. , , .
:
.
.
(, ).
:
< >: array [< >] of <>;
< > :
array - , :
< > - , :
<> - .
yjcns n 
n, n = k mod 3+6, (k − ).
const
n=6;
k=11;
var
a:array[1..n,1..n] of real;
b:array[1..n] of real;
. : , , Memo, StringGrid ..
(n n) A[I,j]=cos(i+j)k.
for i:=1 to n do
for j:=1 to n do
begin
a[i,j]:=cos(i+j)*k;
, (n n) n :
begin
for i:=1 to n do
for j:=1 to n do
if abs(a[i,j])< min then min:=abs(a[i,j]);
end;
. ϳ - . , , , . , . ³ , , , , , .
, , - , , , , .
.
(sortng) − , .
|
|
|
. г . , , .
:
, ;
, ;
, , .
. ( ) . , ( , , , ), . , . , . , .
procedure TForm1.BitBtn1Click(Sender: TObject);// 1
begin
for i:=1 to n do
for j:=1 to n do
begin
a[i,j]:=cos(i+j)*k;
StringGrid1.Cells[j-1,i-1]:=FloatToStrF(a[i,j],ffFixed,6,2);
label3.caption:=' (- j- )'
end;
end;
procedure TForm1.BitBtn2Click(Sender: TObject); // 2
var
min:real;
begin
for i:=1 to n do
for j:=1 to n do
if abs(a[i,j])< min then min:=abs(a[i,j]);// `
label1.caption:='̳ ` '+FloatToStrF(min,ffFixed,6,2);
label3.caption:=' , , `'
end;
procedure TForm1.BitBtn3Click(Sender: TObject); // 3
var
sb:real;
begin
for i:=1 to n do
begin
sb:=0;
for j:=1 to n do
if j mod 2<>0then sb:=sb+a[i,j];
b[i]:=sb;
stringgrid2.Cells[i-1,0]:=floattostrF(b[i],ffFixed,6,2);
label3.caption:='b[i] [i] '
end;
end;
procedure TForm1.BitBtn4Click(Sender: TObject); // 4
var
t:real;
begin
for i:=1 to n do//
c[i]:=b[i];
for i:=1 to n do
for j:=1 to n-1 do
if c[j]>c[j+1] then
begin
t:=c[j];
c[j]:=c[j+1];
c[j+1]:=t;
end;
for i:=1 to n do
StringGrid3.Cells[i-1,0]:=FloatToStrF(c[i],ffFixed,6,2);
label3.caption:=' b '
end;
procedure TForm1.BitBtn5Click(Sender: TObject); // 5
var
s:real;
begin
s:=0;
for i:=1 to n do
s:=s+sin(b[i]+c[n+1-i]);// s:=s+ +sin(b[i]+c[n+1-i])
label2.caption:='-'+floattostrF(s,ffFixed,6,2);
label3.caption:=' b c s:=s+sin(b[i]+c[n+1-i])'
end;
procedure TForm1.BitBtn6Click(Sender: TObject); // 6
var
s,t:real;
min:integer;
// -
begin
for i:=1 to n do
begin
s:=1;
for j:=1 to n do
if (j mod 2 <>0) then s:=s*a[i,j];
X[i]:=S;
stringGrid5.Cells[0,i-1]:=FloatToStr(x[i]);
end;
for i:=1 to n do
begin
y[i]:=x[i]; // x
stringGrid5.Cells[0,i-1]:=FloatToStr(y[i]);
end;
for i:=1 to n do //
for j:=1 to n do
d[i,j]:=a[i,j];
for i:=1 to n-1 do
begin
min:=i;
for j:=i+1 to n do
if y[j]<y[min] then min:=j;
t:=y[i];
y[i]:=y[min];
y[min]:=t;
|
|
|
for j:=1 to n do
begin
t:=d[i,j];
d[i,j]:=d[min,j];
d[min,j]:=t;
end;
label3.caption:=' '
end;
for i:=1 to n do
stringGrid6.Cells[0,i-1]:=FloatToStr(y[i]); //
for i:=1 to n do
for j:=1 to n do
stringGrid4.Cells[j-1,i-1]:=FloatToStrF(D[i,j],ffFixed,6,2); //
end;
procedure TForm1.BitBtn7Click(Sender: TObject); // 7
var
st:string;
begin
for i:=1 to n do
begin
st:='';
for j:=1 to n do
st:=st+' '+floattostrF(a[i,j],ffFixed,6,2); // memo1
memo1.Lines.add(st);
end;
memo1.Lines.SaveToFile('a.txt'); //
for i:=1 to n do
begin
st:='';
st:=st+' '+floattostrF(b[i],ffFixed,6,2);
memo2.Lines.add(st);
end;
memo2.Lines.SaveToFile('b.txt');
for i:=1 to n do
begin
st:='';
st:=st+' '+floattostrF(c[i],ffFixed,6,2);
memo3.Lines.add(st);
end;
memo3.Lines.SaveToFile('c.txt');
for i:=1 to n do
begin
st:='';
st:=st+' '+floattostrF(x[i],ffFixed,6,2);
memo4.Lines.add(st);
end;
memo4.Lines.SaveToFile('x.txt');
for i:=1 to n do
begin
st:='';
for j:=1 to n do
st:=st+' '+floattostrF(d[i,j],ffFixed,6,2);
memo5.Lines.add(st);
end;
memo5.Lines.SaveToFile('d.txt');
label3.caption:=' '
end;
end.
4 Borland Delphi
:
GroupBox1 ᒺ BitBtn. BitBtn 1-7 .
Label 1-2 .
Label 3 .
Memo 1-6
.
StringGrid 1- 6 3,4,6.
