資料來源 : pyDict

指示物,教鞭,暗示指針

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Pointer \Point"er\, n.
   One who, or that which, points. Specifically:
   (a) The hand of a timepiece.
   (b) (Zo["o]l.) One of a breed of dogs trained to stop at
       scent of game, and with the nose point it out to
       sportsmen.
   (c) pl. (Astron.) The two stars (Merak and Dubhe) in the
       Great Bear, the line between which points nearly in the
       direction of the north star. See Illust. of {Ursa Major}.
   (b) pl. (Naut.) Diagonal braces sometimes fixed across the
       hold.

資料來源 : WordNet®

pointer
     n 1: a mark to indicate a direction or relation [syn: {arrow}]
     2: an indicator as on a dial
     3: (computer science) indicator consisting of a movable spot of
        light (an icon) on a visual display; moving the cursor
        allows the user to point to commands or screen positions
        [syn: {cursor}]
     4: a strong slender smooth-haired dog of Spanish origin having
        a white coat with brown or black patches; scents out and
        points game [syn: {Spanish pointer}]

資料來源 : Free On-Line Dictionary of Computing

pointer
     
        1.  An {address}, from the point of view of a
        programming language.  A pointer may be typed, with its {type}
        indicating the type of data to which it points.
     
        The terms "pointer" and "reference" are generally
        interchangable although particular programming languages often
        differentiate these two in subtle ways.  For example, {Perl}
        always calls them references, never pointers.  Conversely, in
        C, "pointer" is used, although "a reference" is often used to
        denote the concept that a pointer implements.
     
        {Anthony Hoare} once said:
     
        Pointers are like jumps, leading wildly from one part of the
        data structure to another.  Their introduction into high-level
        languages has been a step backward from which we may never
        recover.
     
        [C.A.R.Hoare "Hints on Programming Language Design", 1973,
        Prentice-Hall collection of essays and papers by Tony Hoare].
     
        2.  (Or "mouse pointer") An {icon}, usually
        a small arrow, that moves on the screen in response to
        movement of a {pointing device}, typically a {mouse}.  The
        pointer shows the user which object on the screen will be
        selected etc. when a mouse button is clicked.
     
        (1999-07-07)