“Hello, World!”程序是一个只在计算机屏幕上打印出“Hello, World!”(英语,意为“世界,你好!”)字串的计算机程序。该程序通常是计算机程序设计语言的初学者所要学习编写的第一个程序。它还可以用来确定该语言的编译器、程序开发环境以及运行环境已经正确安装。 g\l;>
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 6+FON$8
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以下是用不同语言写成的Hello World程序的几个例子: 35>}$1?-6
Ada |.
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with Ada.Text_Io; use Ada.Text_Io; f@{C3E dd
procedure Hello is IF:M_
begin 6Te}"t>
Put_Line ("Hello, world!"); m7"f6zSo(
end Hello; c`+ITNV
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zb" hy"hKw
汇编语言 Qx6/QaS?
K$.zO4
x86 CPU,DOS,TASM moR]{2Cd{
MODEL SMALL vh HMxOZ;
IDEAL n1t(ns|
STACK 100H Q*8-d9C
hG@ys5
DATASEG `[KhG)Y7t
HW DB 'Hello, world!$' TH|hrL;:8
e!yw"Cf*
CODESEG AH`15k_i
MOV AX, @data </X"*G't
MOV DS, AX .#@D n(
MOV DX, OFFSET HW c{Kl?0#[
MOV AH, 09H (2li:1j
INT 21H nADd,|xD3
MOV AX, 4C00H /ZDc=>)~
INT 21H {X$Mwqhpp;
END
SoX V
mig3.is
X W)A~wPBs
x86 CPU,GNU/Linux,NASM =5`@:!t7
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ~Hs{(7
;Enter this into "hello.asm" then type: dO[4}FZ$
;"nasm -f elf hello.asm" gp)ds^
;"ld hello.o -o hello" `VsGa
;"./hello" Lm|X5RVq
X2[cR;;'
section .data ;data section declaration KV_Ga8hs
msg db 'Hello World!',0AH @"8QG^q8de
len equ $-msg ;string length DKl7|zG4
}/spo3,6
section .text ;code section declaration e{;e
global _start ;entry point (start of execution) b0X[x{k"
_start: mov edx,len ;string length 5B 7*Z
mov ecx,msg ;string start ^WD$
gd
mov ebx,1 ;file handle: stdout @>5<m'}2
mov eax,4 ;sys_write !P$xh
int 80h ;kernel system call \2pFFVT
dLf8w>i`T
mov ebx,0 ;return value fO^6q1a
mov eax,1 ;sys_exit 9C;Y5E~'L
int 80h ;kernel system call uw=Ube(
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k_>{"Rc
x86 CPU,Windows,MASM32 !h!9SE
.386 ^ kvH/ Y&
.model flat,stdcall MjB[5:s
option casemap:none "6yiQ\`J
;Include 文件定义 Td*Oljj._U
include windows.inc XL^N5
include user32.inc 3\r@f_p
includelib user32.lib <y!r~?
include kernel32.inc UwkX[u
includelib kernel32.lib /zf>>O`
;数据段 }G+A_HF ^
.data "5:f{GfO#v
szCaption db 'A MessageBox!',0 A.9'pi'[9Q
szText db 'Hello,world!',0 ':D&c
;代码段 1:zu$|%7
.code g@i>R>
start: 4D$sFR|?t
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK *\KvcRMGUa
invoke ExitProcess,NULL b',bi.FH
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> b0Ov+ )7#
end start $af}+:'
-!,]Y10
jHlOP,kc
AWK 7/_ VE
BEGIN { print "Hello, world!" } 'S7@+kJ
:IVMTdYf
o?K|[gNi
BASIC 6bKO;^0
传统版BASIC(例如GWBASIC): Dh No +"!z
=veOVv[Q&/
10 PRINT "Hello, world!" noNF;zT
20 END AH'4H."o/9
/Jf`x>eiH
或在提示符输入: mqk(UOK`
' P`p.5nH
?"Hello, world!":END t"/"Ge#a
WG/J4H`Od
现代版BASIC(例如Quick BASIC): iWM7,=1+
c4>sE[]
Print "Hello, world!" uuYH6bw*d
}u_EXP8M
以下的语句在Quick BASIC中同样有效: Pgw%SMEp
LQ\
ELJj
? "Hello,world!" VnSj:LUD
B9IXa;
(GEi<\16[
BCPL N~;
khS]
GET "LIBHDR" {L4>2rF
;%7XU~<a
LET START () BE QHs:=i~VH
$( OZ!$%.?l
WRITES ("Hello, world!*N") L\Fu']l
$) >9<8G]vcH
bq3fiT9
BQ9`DYI b
Befunge
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"!dlrow olleH">v xcZ%,7
, M&djw`B
^_@ Uk*;C
iCnUnR{
_d[2_b1
Brainfuck ?FV7|)f
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< dD^_^'i
+++++++++++++++.>.+++.------.--------.>+.>. '+!S|U,{
O/Mz?$8J
lii]4k+z
C x1:Pj
#include <stdio.h> ))IgB).3M
7t-*L}~WA
int main(void) _Hd1sx
{ <a+eF}*2
printf("Hello, world!\n"); X}j'L&{F@
return 0; n`m_S
} L_U3*#Zdz7
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827)n[#%|
C++ !/4V^H
#include <iostream> rX!+@>4_L
1x\VdT
int main() &=z1$ih>2\
{ o7Cnyy#:
std::cout << "Hello, world!" << std::endl; >2lAy:B5
return 0; ~w1{zxs
} uZ/7t(fy
N{^>MRK=5
l|vWeBs
C++/CLI 20/P M9
int main() i|c`M/) h:
{ ST:
v3*
System::Console::WriteLine("Hello, world!"); JMirz~%ib
} pY)j0tdd
y'_V/w s
*>GIk`!wM
C# (C Sharp) s3Krob`C5
class HelloWorldApp T6R7,Vt'v
{ wWJQ~i?
public static void Main() `rz`3:ZH
{ CRc!|?
System.Console.WriteLine("Hello, world!"); xH"W}-#[
} f/0v'
Jt
} Siz!/O!'
r*i$+ Z
{{.sEi*
COBOL Y( 1L>4
IDENTIFICATION DIVISION. V#gF*]q
PROGRAM-ID. HELLO-WORLD. ~mXZfG/D
l:zU_J6
ENVIRONMENT DIVISION. .#= j
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;.nP%jD
DATA DIVISION. }\`(m\2xo
POqRHuFq
PROCEDURE DIVISION. %A)-m 69
DISPLAY "Hello, world!". oh7#cFZZ0
STOP RUN. {t844La"
bmj8WZ
I~p8#<4#b
Common Lisp Y!Uu173
(format t "Hello world!~%") \3H<z@;
(30<oE{
t$]&,ucW#
DOS批处理 i{tTUA
@echo off di3 B=A>3
echo "Hello, world!" ;[TljcbS
ASzzBR;?_
^8?j~&u$F
Eiffel tC2 )j7@
class HELLO_WORLD `a9k!3_L
?%\mQmjas
creation \LO_Nu9
make '2|1%NSW9
feature r#_7]_3
make is *[d~Nk%Y$
local My]+?.Ru
io:BASIC_IO |8&-66pX
do !X5o7b )
!!io \LIy:$`8
io.put_string("%N Hello, world!") ";wyNpb(
end -- make .9T.3yQ
end -- class HELLO_WORLD Z:#.;wA
6QN1+MwB
8- dRdQu]
Erlang 4R&*&GZ#
-module(hello). l `fW{lh
-export([hello_world/0]). <@u0.-]
/]ku$.mr\
hello_world() -> io:fwrite("Hello, World!\n"). //\ds71h
y#]}5gJ
98ca[.ui
Forth 6#E]zmXO2
." Hello, world!" CR 0s860Kn
0zeUP{MQ
!(kX~S
Fortran Bz~ -2#l
WRITE(*,10) 9 '2=
10 FORMAT('Hello, World!') r_4TtP&UW
STOP jA4PDH f+
END 2Ryp@c&r^
xK$}QZ)
/a@ k S
HTML Y.DwtfE
<HTML> +VSZhg,Np8
<HEAD> e{,!|LhpQ
<TITLE> Hello World! </TITLE> yJnPD/i
</HEAD> >j&1?M2C
<BODY> ~_ *H)|
<p>Hello World!</p> 9aT L22U?
</BODY> %lXbCE:[
</HTML> 7<^'DOs
n`P`yb\f$
T1l&B
HQ9+ ?V#Gx>\
H &(gm4bTg
vGXWwQ.1Tp
g93I+
INTERCAL /wr6\53J
PLEASE DO ,1 <- #13 QZ?d2PC=>?
DO ,1 SUB #1 <- #238 S*4f%!
DO ,1 SUB #2 <- #112 <e'P%tG'
DO ,1 SUB #3 <- #112 fk+1# 7{
DO ,1 SUB #4 <- #0 s>T`l
DO ,1 SUB #5 <- #64 fCLcU@3W?
DO ,1 SUB #6 <- #238 Gu2_dT
DO ,1 SUB #7 <- #26 Y;8
>=0ye
DO ,1 SUB #8 <- #248 V?=TVI*k
DO ,1 SUB #9 <- #168 >Cvjs
DO ,1 SUB #10 <- #24 <# >Oy&E
DO ,1 SUB #11 <- #16 "cwR^DoD&
DO ,1 SUB #12 <- #158 f:xUPH?+
DO ,1 SUB #13 <- #52 [1NaH
PLEASE READ OUT ,1 i#k-)N _$
PLEASE GIVE UP u0xQ;BQ
*]5z^>
q;7
*%3oyWwCd
Java 1:_=g #WH
public class Hello USprsaj
{ ~u!gUJ:
public static void main(String[] args) j5zFDh1(
{ o"RJ.w:dn
System.out.println("Hello, world!"); T$u~E1
} 7k `_#
} [ dGO,ndE
"r@G@pe
U M@naU
JSP d^tVD`Fm
<% *MI)]S
out.print("Hello, world!"); w}d}hI
%> PQ,+hq
jA,|JgN|n
)i @1XH"D
MIXAL L.kD,'G}>
TERM EQU 19 the MIX console device number yOc|*O=]U
ORIG 1000 start address 9/G!0uE
START OUT MSG(TERM) output data at address MSG d]MGN^%o
HLT halt execution 90p3V\LO
MSG ALF "MIXAL" u)7*Rj^
ALF " HELL" L%f;J/
ALF "O WOR" 57U%`
ALF "LD " IdF$Ml#[h
END START end of the program Bq *[c=(2
Q? qjWZY
ms7SoYbSu
Nuva <^Nk.E
<..直接输出..> R3?:\d{
Hello, world! )i0 $j)R
AQe!Sqg'
<..或者..> lj*8mS/;h
l]$40 j
<. }%+qP+O\
// 不带换行 Y[?`\c|
? "Hello, world!" WV2~(/hX&
v{.\iIg N
// 或者 O] H=s
_#FIay\ahB
// 带换行 p'80d:
?? 'Hello, world!' E3f9<hm
.> AVv#\JrRW
TMww
{ UOhVJy
OCaml l~['[Ub0)
let main () = YN^T$,*
print_endline "Hello world!";; ?gN9kd)
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kxh 5}eB
Pascal /~*Cp9F"]
program Hello; #d% vT!Bz~
begin g?V&mu
writeln('Hello, world!'); Y9tV%
end. xor TL8
T/5"}P`
<raG07{!*
Perl y:,9I`aW
#!/usr/local/bin/perl 8?1o<8hV
print "Hello, world!\n"; Mn@$;\:
oIR.|=Hk{
U@?6*,b(.
PHP "5}%"-#
<?php +2Ql~w@$^l
print("Hello, world!");
/W`$yM3
?> 5%P[^}
ec?V[v
ib]vX-
Pike 's.~$
#!/usr/local/bin/pike `NSy"6{Z
int main() %[ /<+
{ sB6dpD
write("Hello, world!\n"); ~:EW>Fq%i
return 0; ^dfx~C
} f ;wc{qy
xr.XU'
YjLe(+WQ
PL/I q@kOTkHv)
Test: procedure options(main); /EU; ?O
declare My_String char(20) varying initialize('Hello, world!'); .=XD)>$
put skip list(My_String); l{5O5%\,
end Test; LwOJ|jA(,
|l7%l&!
8*s7m
Prolog %iJ|H(P
goal Sl>>SP
write("hello,world!"). Us-A+)r*!
Q]rqD83((
,H39V+Y*
Python 6IP$n($2
#!/usr/local/bin/python !5UfWk\G
print "Hello, world!" }lP 5GT2
9P.(^SD][z
eh<rRx"[
REXX ]*;F. pZ
say "Hello, world!" Go <'
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#7"
V7C1FV2
Ruby >zmzK{A=
#!/usr/bin/ruby v"RiPHLT
print "Hello, world!\n" #) ]c0]p
Uo6(|mm
qVBL>9O*.
Scheme *Hs*,}MS
(display "Hello, world!") %8w9E=
(newline) 3wC
R|ab}
"-
eZZEl(
w!`Umll2
sed (需要至少一行输入) iYKU[UP?
sed -ne '1s/.*/Hello, world!/p' //.>>-~1m
U-EhPAB@
`f)(Y1%.
Smalltalk ,w2WS\`%
Transcript show: 'Hello, world!' b/<mRQ{
[AR>?6G-
(A{NF(
SNOBOL r5 yO5W
OUTPUT = "Hello, world!" OVR?*"N_
END l}}UFEA^
l>&sIX
.Xd0
Q=1h
SQL 8!zbF<W9
create table MESSAGE (TEXT char(15)); tZA:
insert into MESSAGE (TEXT) values ('Hello, world!'); -(IC~
select TEXT from MESSAGE; y
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drop table MESSAGE; >F3.c%VU]w
Ld(NhB'7
t1ze-Ht;
Tcl 6E|S
#!/usr/local/bin/tcl *)> do
L
puts "Hello, world!" 5v9Vk`3'
4:1)~z
Mo^`\/x!
TScript jN/ j\x'
? "Hello, world!" =;{^"#r\
r{[OJc!
n &}s-`D
Turing s[AA7>]3
put "Hello, world!" 1R*=.i%W
6D/ '`
o8z)nOTO;
UNIX-style shell q`Q}yE>9
程序中的/bin/sh可改为您使用的shell Y~qb;N\
\VN=Ef\E
#!/bin/sh 7=k^M, a
echo 'Hello, world!' 2z\;Q8g){r
&5Y_>{,
S "
pI
GUI kuKa8c
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Delphi s@!$='|
program HelloWorld; :ejJV
6.
uses !>g:Si"
Dialogs; ,X/-
begin +K{LQsR]
ShowMessage('Hello, World!'); K)[8 H~Lm
end. G/{
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NL!9U,h5|
3~%!m<1:
Nuva S_Z`so}
<. <DZcra
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) yA;W/I4
.> YV([2
T20VX 8gX
X9XI;c;b-
Visual Basic [,g~m9
MsgBox "Hello, world!" 3M<!?%v\A
'或者 ebM{OI
Print "Hello, world!" ctJ&URCi#
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