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swap    音标拼音: [sw'ɑp]
n. 以货易货
vt.
vi. 交换,替换,交易

以货易货交换,替换,交易

swap
交换

swap
调换

swap
n 1: an equal exchange; "we had no money so we had to live by
barter" [synonym: {barter}, {swap}, {swop}, {trade}]
v 1: exchange or give (something) in exchange for [synonym: {trade},
{swap}, {swop}, {switch}]
2: move (a piece of a program) into memory, in computer science

Swap \Swap\, v. t. [imp. & p. p. {Swapped}; p. pr. & vb. n.
{Swapping}.] [OE. swappen to strike; cf. E. to strike a
bargain; perh. akin to E. sweep. Cf. {Swap} a blow, {Swap},
v. i.] [Written also {swop}.]
1. To strike; -- with off. [Obs. or Prov. Eng.] "Swap off his
head!" --Chaucer.
[1913 Webster]

2. To exchange (usually two things of the same kind); to
swop. [Colloq.] --Miss Edgeworth.
[1913 Webster]


Swap \Swap\, v. i. [Cf. {Swap}, v. t.]
1. To fall or descend; to rush hastily or violently. --C.
Richardson (Dict.).
[1913 Webster]

All suddenly she swapt adown to ground. --Chaucer.
[1913 Webster]

2. To beat the air, or ply the wings, with a sweeping motion
or noise; to flap.
[1913 Webster]


Swap \Swap\, n. [Cf. G. schwapp, n., a slap, swap, schwapp,
schwapps, interj., slap! smack! and E. swap, v.t.]
1. A blow; a stroke. [Obs. or Prov. Eng.]
[1913 Webster]

2. An exchange; a barter. [Colloq.] --Sir W. Scott.
[1913 Webster]


Swap \Swap\, adv. [See {Swap}, n.]
Hastily. [Prov. Eng.]
[1913 Webster]

82 Moby Thesaurus words for "swap":
alternate, backscratching, bandy, bang, bargain, barter, bash,
be quits with, belt, biff, blind bargain, bump, burst, bust,
buy and sell, change, clap, clash, commute, compensate, cooperate,
counterchange, crack, crash, crump, deal, dicker, do business,
even trade, exchange, flap, flop, get back at, get even with,
give and take, give in exchange, hard bargain, horse trade,
horse-trade, interchange, knock, logroll, logrolling, pay back,
permute, pork barrel, pound, rap, reciprocate, report, requite,
respond, retaliate, return, return the compliment, slam, slap,
slat, smack, sock, splat, substitute, swap horses, swapping,
switch, take in exchange, tap, thwack, trade, trade in, trade off,
trade sight unseen, trade-in, trading, traffic, transpose, truck,
whack, wham, whap, whomp, whop

To move a program from fast-access memory
to a slow-access memory ("swap out"), or vice versa ("swap
in"). The term often refers specifically to the use of a
{hard disk} (or a {swap file}) as {virtual memory} or "swap
space".

When a program is to be executed, possibly as determined by a
{scheduler}, it is swapped into {core} for processing; when it
can no longer continue executing for some reason, or the
scheduler decides its {time slice} has expired, it is swapped
out again.

This contrasts with "paging" systems in which only parts of a
program's memory is transfered.

[{Jargon File}]

(1996-11-22)

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