1) Borland C++ Builder.
2)
U_work1. File Save As , . .
3) Standard, -
. Panel (), , . , .
Form1
. Panel1.
4) Panel1
Panel2.
5) Panel1:
Label (Label1-Label3);
Edit (Edit1-Edit3);
Button (Button1, Button2).
Panel2:
Label (Label4-Label7);
Edit (Edit4, Edit5);
Button (Button3).
7) Panel1. Caption (, ) . Panel2.
8) Label1
Caption ( ) 1.
Label2 Y1.
Label3 .
9) Name Button1
Umn_But. , , . , .
( Caption) -
.
10) Button2 Div_But, .
11) Button3 Calc_But, -
.
12) 8 Label4,
Label5, Label6. 2, Y2 -
.
13) Label7. -
.
( Name) Res_Lab.
14) Edit1 X1_Edit ( Name), -
Text ( ).
Text Edit2, Edit3, Edit4
Edit5.
Edit2 Y1_Edit, Edit3
Res_Edit, Edit4 X2_Edit, Edit5
|
|
|
Y2_edit.
15) .
16) ,
. , .
, Pane1,
. X1_Edit X, Y1_Edit
Y. Res_Edit, , .
. -
X*Y, Res_Edit. X/Y, Res_Edit.
17) . -
U_work1.h. public TMainForm double:
double X; // X
double Y; // Y
double Result; //
,
.. TMainForm(TComponent* Owner).
18) .
(Object Inspector) Umn_But (.. ). Events, .
OnClick
. Umn_ButClick. Unit1.cpp , :
void __fastcall TMainForm::Umn_ButClick(TObject *Sender)
{
}
, ..
.
19) X Y , X1_Edit Y1_Edit. , , . double , , StrToFloat(AnsiString S):
X = StrToFloat(X1_Edit>Text);
Y = StrToFloat(Y1_Edit>Text);
20) Result
X*Y, Result Res_Edit.
Text
Res_Edit Result, double AnsiString FloatToStr(double Value):
Result = X*Y;
Res_Edit>Text = FloatToStr(Result);
21) .
22) . :
Result = X/Y;
Res_Edit>Text = FloatToStr(Result);
23) -
Y 0 . Y if :
if (Y == 0) // Y 0
{//
Application>MessageBoxA( 0!, , MB_OK);
|
|
|
return; //
}
Y = 0 , 1.8. OK, return. , .. , ( void).
24) . X Y , Panel2.
Res_Lab.
Caption ( AnsiSting) Res_Lab>Caption.
, .
:
//---------------------------------------------------------------------------
void __fastcall TMainForm::Calc_butClick(TObject *Sender)
{
X = StrToFloat(X2_Edit->Text);
Y = StrToFloat(Y2_Edit->Text);
Result = (Y+(2*X))/((5*X)+(Y*Y));//
Res_Lab->Caption = FloatToStr(Result);
}
//---------------------------------------------------------------------------
25) :
, :
Ø Borland C++ Builder ;
Ø , ;
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2. - C++.
3. - ++.
4. - C++. .
5. . - C++
