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StringGrid




StringGrid 1 ColCount RowCount , , 3 , FixedCols FixedRows 1.

StringGrid 2 StringGrid 3 , ColCount = 1, RowCount = 3, FixedCols = 0 FixedRows = 1.

Options goEditing StringGrid 1 StringGrid 2 true.

n - EditChange, Edit.

 

. 6.1

 

 

:

...

int n = 3; // n

 

//---------------------------------------------------------------------------

void __fastcall TForm1:: FormCreate (TObject *Sender)

{

Edit1->Text=IntToStr(n);

StringGrid1->ColCount = n+1; StringGrid1->RowCount = n+1;

StringGrid2->RowCount = n+1; StringGrid3->RowCount = n+1;

//---------- -----------

StringGrid1->Cells[0][0] = " A";

StringGrid2->Cells[0][0] = " B";

StringGrid3->Cells[0][0] = " Y";

for(int i=1; i<=n;i++){

StringGrid1->Cells[0][i]="i="+IntToStr(i);

StringGrid1->Cells[i][0]="j="+IntToStr(i);

}

}

 

//---------------------------------------------------------------------------

void __fastcall TForm1:: Edit1Change (TObject *Sender)

{

int i;

n=StrToInt(Edit1->Text);

StringGrid1->ColCount = n+1;

StringGrid1->RowCount = n+1;

StringGrid2->RowCount = n+1;

StringGrid3->RowCount = n+1;

for(i=1; i<=n;i++){

StringGrid1->Cells[0][i]="i="+IntToStr(i);

StringGrid1->Cells[i][0]="j="+IntToStr(i);

}

}

 

//---------------------------------------------------------------------------

void __fastcall TForm1:: Button1Click (TObject *Sender)

{

double **a, *b, s; //

int i, j;

a = new double*[n]; //

for(i=0; i<n;i++)

a[i] = new double[n]; //

b = new double[n];

// StringGrid1 StringGrid2

for(i=0; i<n;i++) {

for(j=0; j<n;j++)

a[i][j]=StrToFloat(StringGrid1->Cells[j+1][i+1]);

b[i]=StrToFloat(StringGrid2->Cells[0][i+1]);

}

// s StringGrid3

for(i=0; i<n;i++){

for(s=0, j=0; j<n;j++)

s += a[i][j]*b[j];

StringGrid3->Cells[0][i+1] = FloatToStrF(s, ffFixed,8,2);

}

for(i=0; i<n;i++) delete []a[i];

delete []a;

delete []b;

}

 

//---------------------------------------------------------------------------

void __fastcall TForm1:: Button2Click (TObject *Sender)

{

Close();

}

 





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: 2015-10-01; !; : 616 |


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