资料来源 : pyDict

和,以及,而且,并且,那?

资料来源 : Webster's Revised Unabridged Dictionary (1913)

And \And\, conj. [AS. and; akin to OS. endi, Icel. enda, OHG.
   anti, enti, inti, unti, G. und, D. en, OD. ende. Cf, {An} if,
   {Ante-}.]
   1. A particle which expresses the relation of connection or
      addition. It is used to conjoin a word with a word, a
      clause with a clause, or a sentence with a sentence.

   Note: (a) It is sometimes used emphatically; as, ``there are
         women and women,'' that is, two very different sorts of
         women. (b) By a rhetorical figure, notions, one of
         which is modificatory of the other, are connected by
         and; as, ``the tediousness and process of my travel,''
         that is, the tedious process, etc.; ``thy fair and
         outward character,'' that is, thy outwardly fair
         character, --Schmidt's Shak. Lex.

   2. In order to; -- used instead of the infinitival to,
      especially after try, come, go.

            At least to try and teach the erring soul. --Milton.

   3. It is sometimes, in old songs, a mere expletive.

            When that I was and a little tiny boy. --Shak.

   4. If; though. See {An}, conj. [Obs.] --Chaucer.

            As they will set an house on fire, and it were but
            to roast their eggs.                  --Bacon.

   {And so forth}, and others; and the rest; and similar things;
      and other things or ingredients. The abbreviation, etc.
      (et cetera), or &c., is usually read and so forth.

资料来源 : Free On-Line Dictionary of Computing

AND
     
         (Or "conjunction") The {Boolean} function which is
        true only if all its arguments are true.  The {truth table}
        for the two argument AND function is:
     
         A | B | A AND B
         --+---+---------
         F | F |    F
         F | T |    F
         T | F |    F
         T | T |    T
     
        AND is often written as an inverted "V" in texts on logic.  In
        the {C} programming language it is represented by the &&
        (logical and) {operator}.
     
        (1997-11-15)