资料来源 : pyDict
页眉,功能变数名称首领,队长,收割台; 数据包的开始部分,(包含发送及接收位址及其它错误检查、认证等等资讯)
资料来源 : Webster's Revised Unabridged Dictionary (1913)
Header \Head"er\, n.
1. One who, or that which, heads nails, rivets, etc., esp. a
machine for heading.
2. One who heads a movement, a party, or a mob; head; chief;
leader. [R.]
3. (Arch.)
(a) A brick or stone laid with its shorter face or head in
the surface of the wall.
(b) In framing, the piece of timber fitted between two
trimmers, and supported by them, and carrying the ends
of the tailpieces.
4. A reaper for wheat, that cuts off the heads only.
5. A fall or plunge headforemost, as while riding a bicycle,
or in bathing; as, to take a header. [Colloq.]
资料来源 : WordNet®
header
n 1: a line of text serving to indicate what the passage below it
is about; "the heading seemed to have little to do with
the text" [syn: {heading}, {head}]
2: horizontal beam used as a finishing piece over a door or
window [syn: {lintel}]
3: brick that is laid sideways at the top of a wall [syn: {coping},
{cope}]
4: a framing member crossing and supporting the ends of joists,
studs, or rafters so as to transfer their weight to
parallel joists, studs, or rafters
5: a machine that cuts the heads off grain and moves them into
a wagon
6: (soccer) the act of hitting the ball with your head
7: a headlong jump (or fall); "he took a header into the
shrubbery"
资料来源 : Free On-Line Dictionary of Computing
header
1. The portion of a {packet}, preceding the actual data,
containing source and destination addresses, error checking
and other fields.
2. The part of an {electronic mail} message or {news} article
that precedes the body of a message and contains, among other
things, the sender's name and e-mail address and the date and
time the message was sent.