“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。 @nIoYT='
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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》。 jvGGIb"&1
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以下是用不同语言写成的Hello World程序的几个例子: %p? +r
Ada ean_/E
with Ada.Text_Io; use Ada.Text_Io; K7o!,['W
procedure Hello is f;";P
begin 2|Of$oMc
Put_Line ("Hello, world!"); 3eOwy~
end Hello; UvwO/A\Gv
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汇编语言 jV:Krk6T<
c-1Hxd YD
x86 CPU,DOS,TASM ~CTe5PX c
MODEL SMALL zB,Vi-)vH
IDEAL
v E4ce
STACK 100H 8 cN[t.S
4rpx
DATASEG kl(id8r
HW DB 'Hello, world!$' btb$C
qyA%_;ReMY
CODESEG UvR F\x%
MOV AX, @data 6Ja} N
MOV DS, AX {[Bo"a>%
MOV DX, OFFSET HW jS_fwuM
MOV AH, 09H *CsRO
INT 21H bU3e*Er
MOV AX, 4C00H ]I
pLF#
INT 21H Y`secUg
END 3}U {~l!K
?ks3K-.4
#2&DDy)Bf
x86 CPU,GNU/Linux,NASM M}jF-z
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). f8Z[prfP
;Enter this into "hello.asm" then type: V_)G=#6Dy
;"nasm -f elf hello.asm" (+M]C]
;"ld hello.o -o hello" >j&+mii
;"./hello" _tl
6I5,PB
section .data ;data section declaration H83Gx;
msg db 'Hello World!',0AH *OoM[wEY
len equ $-msg ;string length \U(;%V
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section .text ;code section declaration Etv!:\\[
global _start ;entry point (start of execution) B;[ai?@c(_
_start: mov edx,len ;string length -eZ$wn![
mov ecx,msg ;string start >a6{y
mov ebx,1 ;file handle: stdout |:yWDZg[
mov eax,4 ;sys_write -> $]`h"
int 80h ;kernel system call }(*eR F'
gd#j{yI/Xf
mov ebx,0 ;return value dp&8:jy
mov eax,1 ;sys_exit "'#18&N
int 80h ;kernel system call osBwX.G'l
I-L52%E]
7FQ&LF46
x86 CPU,Windows,MASM32 G[;GP0\N
.386 x%J4A+kU
.model flat,stdcall tBJCfM
option casemap:none H8$l }pOz
;Include 文件定义 CxvL!ew
include windows.inc yJyovfJz.
include user32.inc V'-}B6 3S>
includelib user32.lib ?W6qwm,?L
include kernel32.inc nTG @=C#
includelib kernel32.lib 2 %`~DVo
;数据段 q:}Q5gzZ
.data Z4&,KrV
szCaption db 'A MessageBox!',0 u
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szText db 'Hello,world!',0 H K]-QTEn
;代码段 F!N D
.code CrvL[6i
start: 6"OwrJB
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK \B72 #NR
invoke ExitProcess,NULL iZ^tLnc
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> n5Coxvy1
end start <%_7%
D@O#P^?
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AWK <./r%3$;7
BEGIN { print "Hello, world!" } 2rzOh},RS
vS@;D7ep
PG51+#
BASIC 9)y7K%b0
传统版BASIC(例如GWBASIC): ){D6E9
JY5)^<.d
10 PRINT "Hello, world!" rAv)k&l
20 END RWX?B
3Ygt!
或在提示符输入: 4V6^@
'<$!?="
?"Hello, world!":END [Yi;k,F:
IasWm/
现代版BASIC(例如Quick BASIC): Rhfx
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Print "Hello, world!" )\`.Ru~,
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以下的语句在Quick BASIC中同样有效: Ba8 s
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? "Hello,world!" M/d6I$~7z
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l?f%2:}m
BCPL k=^~\$e
GET "LIBHDR" EuJ_UxkG
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LET START () BE P(Gv|Q@
$( k <EzYh
WRITES ("Hello, world!*N") b +4x2{
$) t7P[^f15[
@ P'("qb~
-;1nv:7Z3
Befunge l KdY!j"
"!dlrow olleH">v yPn!1=-(
, B$\,l.hE
^_@ 6r]l8*34;
o/J2BZ<_<
K6z)&<
Brainfuck h1_9Xp~N
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 8kRqF?rbj
+++++++++++++++.>.+++.------.--------.>+.>. {:%A
#Wf9`
j%q,]HCANh
C u)hr
#include <stdio.h> f[XsnN2
eI^Q!b8n
int main(void) aioN)V
{
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printf("Hello, world!\n"); ozCH1V{p
return 0; cns~)j~
} 5McOSy
4WAs_~
^*$lCUv8p
C++ ES>iM)M
#include <iostream> [YTOrN
N!Q~?/!d
int main() #}lq2!f6
{ !vY5X2?tr,
std::cout << "Hello, world!" << std::endl; `Lr I^9Z
return 0;
_!K@(dl
} Qt~QJJN?oF
tK0Ksnl^
(rT1wup
C++/CLI `pJWZ:3
int main() B/^1uPTZ71
{ wBJP8wES=
System::Console::WriteLine("Hello, world!"); c]x'}Kc
}
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CKuf'h#
V."qxKsz
C# (C Sharp) LP{@r ic
class HelloWorldApp gP^p7aYwn
{ .S6u{B
public static void Main() /ygC_,mx
{ S [=l/3c
System.Console.WriteLine("Hello, world!"); T1_qAz+
} ssUm1F\
} \Um &
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S&SM
COBOL Ir4M5OR\
IDENTIFICATION DIVISION. P.>5`^
PROGRAM-ID. HELLO-WORLD. M>xjs?{%k
<cUaIb;(4
ENVIRONMENT DIVISION. G?e\w+}Pj@
qy^sdqHl@
DATA DIVISION. 92";?Xk
fnJ!~b*qo
PROCEDURE DIVISION. YsBOh{Ml
DISPLAY "Hello, world!". "3H?_!A9
STOP RUN. wc~k4B9"
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9bb5?b/
Common Lisp L>X39R~
(format t "Hello world!~%") VUbg{Rb)
k0>]7t$L
8)m
DOS批处理 Z{p62|+Ck@
@echo off |Ev VS
echo "Hello, world!" >=VtL4K^
UPr8Q^wm
g>&b&X&Y_
Eiffel QP={b+8
class HELLO_WORLD yrCY-'%
wS%j!|xhlV
creation M?3#XQDvD
make bi<?m^j
feature JXNfE,_
make is #-^y9B
local l6y*SW5+
io:BASIC_IO Uoqt
do wx*)7Y*
!!io d~za%2{
io.put_string("%N Hello, world!") Yd>ej1<
end -- make Xt%>XP
end -- class HELLO_WORLD WVkJ=r0Ny
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#
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Erlang AriW&E
-module(hello). >SSRwYIN
-export([hello_world/0]). OO /Pc
kA/V=xO<
hello_world() -> io:fwrite("Hello, World!\n"). \66j4?H#
0<4Swj3s7
m!H7;S-(
Forth #>[5NQ;$'
." Hello, world!" CR !tckE\ h#N
2[e^mm&.
ge@ KopZ&
Fortran kE*OjywN
WRITE(*,10) QmRE<i
10 FORMAT('Hello, World!') XL2iK) A
STOP
#->#mshd4
END qFwJ%(IQ
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5:6]ZFW
HTML @,%IVKg\
<HTML> 18{" @<wIs
<HEAD> -<RG'I~
<TITLE> Hello World! </TITLE> Smjg[
</HEAD> 48t_?2>
<BODY> *j/[5J0'M
<p>Hello World!</p> /GDGE }
</BODY> ET:B"
</HTML> !ZC0 n`
tw?\bB
")?NCun>
HQ9+ LI/;`Y=
H C?47v4n-'
S-D=-{@
)?D w)s5
INTERCAL &
~*qTojj
PLEASE DO ,1 <- #13 cPL]WI0(
DO ,1 SUB #1 <- #238 d%C:%d
DO ,1 SUB #2 <- #112 dXvp-oi
DO ,1 SUB #3 <- #112 SPEDN}/^
DO ,1 SUB #4 <- #0 =3=
$F%
DO ,1 SUB #5 <- #64 @ApX43U(
DO ,1 SUB #6 <- #238 FaVeP%v
DO ,1 SUB #7 <- #26 g XThdNU4G
DO ,1 SUB #8 <- #248 *M^t@ h l
DO ,1 SUB #9 <- #168 {24Y1ohK
DO ,1 SUB #10 <- #24 @w]z"UCwV@
DO ,1 SUB #11 <- #16 DD(K@M
DO ,1 SUB #12 <- #158 .dStV6
DO ,1 SUB #13 <- #52 X1GpLy)p
PLEASE READ OUT ,1 ++ZtL\h{7
PLEASE GIVE UP @cT= t0*
zbM*/:Y
BMlu>,
Java n"P29"
public class Hello jh3XG
{ SK&? s`
public static void main(String[] args) H;(|&Asq>
{ klqN9d9k
System.out.println("Hello, world!"); *k%3J9=-1
} }M+2 ,#l
} !?%'Fy6t
C6P(86?
|4tnG&=
JSP LG6k
KG
<% g3"eEg5 NY
out.print("Hello, world!"); YR$)yl
%> 7HkQ|~zGT
;?`l1:C5)
w:~Y@b~D
MIXAL ,O[Maj/ch
TERM EQU 19 the MIX console device number 4X^{aIlshk
ORIG 1000 start address _# mo6')j
START OUT MSG(TERM) output data at address MSG v7kR]HU[y
HLT halt execution sKLH.@
MSG ALF "MIXAL" S7_^E
ALF " HELL" ^3:y<{J
ALF "O WOR" 5f'<0D;K
ALF "LD " C1YG=!
END START end of the program _s> ZY0
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/Wqx@#
Nuva jj&4Sv#>
<..直接输出..> FID4@--
Hello, world! O{F)|<L(G
7:>VH>?D
<..或者..> -Ze{d$
RaNz)]+7`
<. O*d4zBT
// 不带换行 NX5A{
? "Hello, world!" d|, B* N(w
~.,h12
// 或者 G',*"mZQ[
_\y%u_W
// 带换行 :y!%GJW
?? 'Hello, world!' ]|y]?7
.> QlFt:?7f
H^e0fm
kQY+D1
OCaml E*F)jP,yo
let main () = 0D*uZ,oBEw
print_endline "Hello world!";; S
;; Z
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7 ?O~3
Pascal az=(6PX
program Hello; U.[?1:v
begin mm5y'=#
writeln('Hello, world!'); @^)aUOe
end. H"g$qSx
Qf}^x9'
VZJ[h{ 6
Perl i(k]}Di:
#!/usr/local/bin/perl c T!L+zg
print "Hello, world!\n"; N%,!&\L
j$K[QSn
-q-/0d<l
PHP 27NhYDo
<?php F$QAWs
print("Hello, world!"); g+-=/Ge
?> ,VM)ZK=Tr
{ fmY_T[Q8
08!pLE
Pike )38M~/ ^l
#!/usr/local/bin/pike us^2Oplq<
int main() N{f4-i~
{ t`XYY
write("Hello, world!\n"); nnZ|oEF
return 0; VTQxg5P c
} x\
pC&
l-N4RCt h
5$T>noD
PL/I r.V< 5xV
Test: procedure options(main); $:bU<
declare My_String char(20) varying initialize('Hello, world!'); SgOn:xg;3L
put skip list(My_String); o~*5FN}%+l
end Test; 'Si1r%'m#
'<v/Gl\
c
QjzI#
Prolog 06&:X^
goal 2A+I8/zRG
write("hello,world!"). *1Lkde@|{
f8DF>]WW
R tR5ij1
Python 3xJ_%AD\'
#!/usr/local/bin/python ~\9bh6%R
print "Hello, world!" CS:mO|
"z^&>#F
5Y4i|R
REXX zLs[vg.(
say "Hello, world!" LZCziW
l1|z;
$_z
}wJDHgt]-p
Ruby SX{6L(
#!/usr/bin/ruby 8qEK6-
print "Hello, world!\n" COx<X\
kW#{[,7r
"))G|+tz
Scheme 0ang^v;q
(display "Hello, world!") %EZG2J jO)
(newline) ?]fd g;?@
!~{AF|2f
.Jt&6N
sed (需要至少一行输入) =Of!1TR(
sed -ne '1s/.*/Hello, world!/p' *N0R3da
1,p[4k~Ww
S >P TD@
Smalltalk Lmy ^/P%
Transcript show: 'Hello, world!' ugM,wT&~Y
dz',!|>
v@43%`"Gj
SNOBOL M~/%V NX
OUTPUT = "Hello, world!" [8k7-}[
END %}U-g"I
oJF@O:A
s^nwF>
SQL MSmvQ
create table MESSAGE (TEXT char(15)); n')#]g0[
insert into MESSAGE (TEXT) values ('Hello, world!'); `hD\u@5Tw
select TEXT from MESSAGE; 2VOdI
drop table MESSAGE; (9N75uCa
wn'_;0fg
}ug|&25D
Tcl {YCquoF
#!/usr/local/bin/tcl ^AWM/aY
puts "Hello, world!" GdqT4a\S
oEHUb?(p
NXvu}&H
TScript \ORNOX:
? "Hello, world!" $vS`w4Y
N/A.1W
OT_w<te
Turing 5@$b@jTd
put "Hello, world!" M]?#]3XBNo
"+js7U-
-f.<s!a
UNIX-style shell Tc6H%itV
程序中的/bin/sh可改为您使用的shell 4#?OxvH
p7Yej(B
#!/bin/sh .[1"Med J
echo 'Hello, world!' ':71;^zXf
"WTnC0<
*/Oq$3QGsV
GUI vjI>TIy
Vwp fkD`
Delphi [@OXvdTV
program HelloWorld; (hefpqpi
uses #\G{2\R
Dialogs; zof>S>5>R7
begin A f@IsCOJ
ShowMessage('Hello, World!'); 1"r6qYN!>
end. c <[?Z7y
}>cQ}6n.
sKhX0,s&
Nuva .(tga&]
<. S1pikwB
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 7E$
e1=
.> !2WRxM
~_P,z?
qlJP2Ig~
Visual Basic 3F ;+D
MsgBox "Hello, world!" (5%OAjW
'或者 &N!QKrj3
Print "Hello, world!" 317Lv
\[
vcsi@!
00'R1q4
Visual FoxPro C+-xC~
? "Hello, world!" 8$3G c"=
m'$]lf;*
%|[+\py$Q
X11 7WG"_A~V
用一个程序 RsS?ibozl
SrfDl*
xmessage 'Hello, world!' !o2lB^e8
9g#L"T=
用C++和gtkmm 2 )p7WU?&I
_dY6Ip%
#include <iostream> zqg4@"
p
#include <gtkmm/main.h> tWYKW 3~]
#include <gtkmm/button.h> qG=9zp4y?Y
#include <gtkmm/window.h> 08&DP^NS
using namespace std; q&