unit Unit1;

interface

const N=3;

type
  TYac = {object}class
  private
    Znac:integer;
  public
    function GetZnac:integer;
    procedure PutZnac(z:integer);
  end;

  TColumn = {object}class
  private
    Col:array[1..N] of TYac;
  public
    function GetZnac(i:integer):integer;
    procedure PutZnac(i,z:integer);
  end;


implementation

function TYac.GetZnac:integer;
begin
  GetZnac:=Znac;
end;

procedure TYac.PutZnac(z:integer);
begin
  Znac:=z;
end;

function TColumn.GetZnac(i:integer):integer;
begin
  GetZnac:=col[i].GetZnac;
end;

procedure TColumn.PutZnac(i,z:integer);
begin
  col[i].PutZnac(z);
end;

end.

program Project1;

{$APPTYPE CONSOLE}

uses
  SysUtils,
  Unit1 in 'Unit1.pas';

var
  Column:TColumn;

begin
  Column.PutZnac(1,7); // Вот здесь ругается
  {Column.PutZnac(2,8);
  Column.PutZnac(3,5);}
  //writeln(Column.GetZnac(1)); // Вот здесь ругается
  readln;
end.

unit Unit1;

interface

const N=1;

type
  TCell = class
  private
    fValue:integer;
    function GetValue:integer;
    procedure SetValue(v:integer);
  published
    property Value:integer read GetValue write SetValue;
  end;

  TColumn = class
  private
    fColumn:array[1..N] of TCell;
    function GetCell(j:integer):TCell;
    procedure SetCell(j:integer;c:TCell);
  public
    constructor Create;
    property Column[j:integer]:TCell read GetCell write SetCell;
  end;

  TRow = class
  private
    fRow:array[1..N] of TColumn;
    function GetColumn(i:integer):TColumn;
    procedure SetColumn(i:integer;c:TColumn);
  public                                                   //<--------------------------------вот здесь Published
    constructor Create;
    property Row[i:integer]:TColumn read GetColumn write SetColumn;

  end;

  TMatr = class(TRow)
  public
    procedure vvod(nam:string);
    procedure vivod(nam:string);
  end;

  TFunc = class
  public
    function Mult(a,b:TMatr;N:byte):TMatr;
  end;



implementation

function TCell.GetValue:integer;
begin
  result:=fValue;
end;

procedure TCell.SetValue(v:integer);
begin
  fValue:=v;
end;

constructor TColumn.Create;
var i:integer;
begin
  inherited;
  for i:=1 to N do
    fColumn[i]:=TCell.Create;
end;

function TColumn.GetCell(j:integer):TCell;
begin
  result:=fColumn[j];
end;

procedure TColumn.SetCell(j:integer;c:TCell);
begin
  fColumn[j]:=c;
end;

constructor TRow.Create;
var i:integer;
begin
  inherited;
  for i:=1 to N do
    fRow[i]:=TColumn.Create;
end;

function TRow.GetColumn(i:integer):TColumn;
begin
  result:=fRow[i];
end;

procedure TRow.SetColumn(i:integer;c:TColumn);
begin
  fRow[i]:=c;
end;


procedure TMatr.vvod(nam:string);
var
  i,j:byte;
  v:integer;
begin
  for i:=1 to N do
    for j:=1 to N do
      begin
        write('vvedi ',nam,'[',i,',',j,']: ');
        readln(v);
        self.Row[i].Column[j].Value:=v;
      end;
end;

procedure TMatr.vivod(nam:string);
var
  i,j:byte;
begin
  writeln(nam);
  for i:=1 to N do
    begin
      for j:=1 to N do
        write(self.Row[i].Column[j].Value:4);        
      writeln;
    end;
  writeln;
end;


function TFunc.Mult(a,b:TMatr;N:byte):TMatr;
var
  i,j,s:byte;
  v:integer;
begin
  for i:=1 to N do
    for j:=1 to N do
      begin
        v:=0;
        for s:=1 to N do
          begin
            //inc(v,a.Row[i].Column[s].Value*b.Row[s].Column[j].Value); //<---вот эти строчки не работают...
            //Mult.Row[i].Column[j].Value:=v;                   //<-------------------------------
          end;
      end;
end;


end.

program Project1;

{$APPTYPE CONSOLE}

uses
  SysUtils,
  Unit1 in 'Unit1.pas';

var
  a,b:TMatr;
  f:TFunc;

begin
  a:=TMatr.Create;
  a.vvod('a');
  a.vivod('viv a');
  b:=TMatr.Create;
  b.vvod('b');
  b.vivod('viv b');

  f:=TFunc.Create;
  f.Mult(a,b,n).vivod('mult');
  readln;
end.