为什么在TObject中使用“ T”前缀？

Question

When declaring classes and so on, what does the "T" in TObject stand for? Template?

Example:

procedure TfrmMain.CaptureInfo1Click(Sender: TObject);
begin
  frmCapture.Show;
end;

Answer 1

Delphi has a number of officially sanctioned prefixes.
These are all by Borland convention and are not enforced by the compiler.

Prefix | Used for | Notes
-------+----------+---------------------------------------------
   T   | types    | Denotes a structured type, class or record
   I   |interfaces| For interfaces, e.g. IInterface
   F   | Field    | Private Field in a class or record
  xx   | enum     | Enumeration members have a 2 char prefix
       |          | e.g.  fsBold, fsItalic for the TFontStyle enum  
   A   | params   | deprecated ! All method params at one point started with an `A`.
                    this convention is no longer encouraged. 

Note that the capitalization is as shown.

The reason Delphi uses prefixes is that the language is not case sensitive, so the C/Java trick of using ALLCAPS for constants and Leading caps for types does not work.

All this and more is outlined in the Object Pascal Style Guide , more specifically the section Naming Convention .
_{It's the style that all source code written by Borland et al follow}

Answer 2

据我所知，它代表“类型”。