小编use*_*540的帖子

我的问题很简单。我有一个具有以下代码的 dwsUnit：

type
  TPointCoord = record
    X: Float;
    Y: Float;
    Z: Float;
  end;

type
  TMyClass = class
  private
    fPosition: TPointCoord;

    function GetPosition: TPointCoord;
    procedure SetPosition(Val: TPointCoord);
  public
    property Position: TPointCoord read GetPosition write SetPosition;
    constructor Create;
end;

function TMyClass.GetPosition: TPointCoord;
begin
  Result := fPosition;
end;

procedure TMyClass.SetPosition(Val: TPointCoord);
begin
  fPosition := Val;
end;

constructor TMyClass.Create;
begin
  inherited Create;
  fPosition.X := 1;
  fPosition.Y := 2;  
  fPosition.Z := 3;    
end;

var
  mc: TMyClass;
begin
  mc := TMyClass.Create;
  mc.Position.X := 2;   //Syntax Error …