在程序中如何动态修改PARADOX表的结构？

  with Table1 do begin
    { The Table component must not be active }
    Active := False;  
    { First, describe the type of table and give }
    { it a name }
    DatabaseName := 'DBDEMOS';
    TableType := ttParadox;
    TableName := 'CustInfo';
    { Next, describe the fields in the table }
    with FieldDefs do begin
      Clear;
      with AddFieldDef do begin

        Name := 'Field1';
        DataType := ftInteger;
        Required := True;
      end;
      with AddFieldDef do begin
        Name := 'Field2';
        DataType := ftString;
        Size := 30;
      end;
    end;
    { Next, describe any indexes }
    with IndexDefs do begin
      Clear;
      { The 1st index has no name because it is
      { a Paradox primary key }
      with AddIndexDef do begin

        Name := '';
        Fields := 'Field1';
        Options := [ixPrimary];
      end;
      with AddIndexDef do begin
        Name := 'Fld2Indx';
        Fields := 'Field2';
        Options := [ixCaseInsensitive];
      end;
    end;
    { Call the CreateTable method to create the table }
    CreateTable;
  end;
end;