“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。 w*qj0:i5as
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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》。 ?KC(WaGJQ
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以下是用不同语言写成的Hello World程序的几个例子: \9?[|m
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Ada 5n@YNaoIb
with Ada.Text_Io; use Ada.Text_Io; 8dczC
procedure Hello is 4>KF`?%4
begin ;*(-8R/
Put_Line ("Hello, world!"); 7~7L5PRW
end Hello; QN:v4,$d
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汇编语言 ^tB1Nu%
#Bd]M#J17a
x86 CPU,DOS,TASM bZnOX*y]
MODEL SMALL 5hrI#fpOR
IDEAL H"A%mrb
STACK 100H MGg(d
]fyfL|(;
DATASEG V1aP_G-:
HW DB 'Hello, world!$' hOj{y2sc
@62T:Vl
CODESEG z(|^fi(
MOV AX, @data 5ya9VZ5#
MOV DS, AX fkV@3sj
MOV DX, OFFSET HW gaF6j!p
MOV AH, 09H 28MMH
Q
INT 21H jI-a+LnEm
MOV AX, 4C00H ?.~1%l !
INT 21H 7N$2N!I(
END \-\>JPO~<
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x86 CPU,GNU/Linux,NASM ]eL# bJ
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). RTOA'|[0M
;Enter this into "hello.asm" then type: fLDrit4_Q
;"nasm -f elf hello.asm" !_Lmrs
;"ld hello.o -o hello" Sc<dxY@w7-
;"./hello" }icCp)b>v
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section .data ;data section declaration pj>R9zpn_
msg db 'Hello World!',0AH qmrT dG
len equ $-msg ;string length _#8hgwf>
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section .text ;code section declaration \v2!5z8|
global _start ;entry point (start of execution) E>~R P^?Uz
_start: mov edx,len ;string length n$iX6Cd
mov ecx,msg ;string start =?i?-6M
mov ebx,1 ;file handle: stdout &W<7!U:2m
mov eax,4 ;sys_write #ArrQeO 5_
int 80h ;kernel system call 6h:QSVfx
n
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mov ebx,0 ;return value ?@64gdlwq
mov eax,1 ;sys_exit =2R4Z8G
int 80h ;kernel system call ":]Xr!e
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8g#$Y2P
x86 CPU,Windows,MASM32 w~3X
m{
.386 p Cz6[*kC
.model flat,stdcall ]J7qsMw
option casemap:none pBsb>wvej
;Include 文件定义 dY1t3@E
include windows.inc :'%6
include user32.inc 'Y?-."eKh
includelib user32.lib X=)V<2WO
include kernel32.inc bLc5$U$!I
includelib kernel32.lib CoN[Yf3\
;数据段 Al$z.i?R
.data oi #B7
szCaption db 'A MessageBox!',0 wuqe{?
szText db 'Hello,world!',0 (NJ{>@&
;代码段 LlTD =tJ0
.code EGu%;[
start: w\buQ6pR)
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK (.J/Ql0Y
invoke ExitProcess,NULL MO`Y&<g~A
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> \/
bd
end start J
En jc/
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AWK -^p{J
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BEGIN { print "Hello, world!" } DE(XSzX
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BASIC u~uzKG
传统版BASIC(例如GWBASIC): vhe Y
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z^
10 PRINT "Hello, world!" K~(RV4oF8B
20 END {oQs*`=l>
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或在提示符输入: v\xl?F
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?"Hello, world!":END mGT('iTM4
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现代版BASIC(例如Quick BASIC): YvY|\2^K
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Print "Hello, world!" ~
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以下的语句在Quick BASIC中同样有效: 6 @f>
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? "Hello,world!" ETDWG_H |
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BCPL wE
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GET "LIBHDR" Ev fvU:z
x ;DoQx
LET START () BE *>m[ZJd %=
$( ~Ztn(1N
WRITES ("Hello, world!*N") [4Q;(67
$) [&TF]az
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)*KMU?
Befunge j0l,1=^>l
"!dlrow olleH">v 1?'4%>kp
, /~LE1^1&U
^_@ >X~B1D,SV7
yR$_ZXsd
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Brainfuck Nd(,oXa~
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< !HTOE@
+++++++++++++++.>.+++.------.--------.>+.>. O8;/oL4 U
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C Q 3WD!Z8y
#include <stdio.h> +d,
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int main(void) tU4#7b:Y
{ aCZ0-X?c
printf("Hello, world!\n"); L>Y+}]~
return 0; C[FHqo9M?H
} f)sy-o!
.; MS78BR
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C++ C4m+Ta%
#include <iostream> r8:r}Qj2w[
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int main() Ca-"3aQkc
{ 'FW?
std::cout << "Hello, world!" << std::endl; f 3UCELJ
return 0; f_k'@e {
} [-(^>Y
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C++/CLI CJ<nUIy'z
int main() y|LHnNQ
{ cAR
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System::Console::WriteLine("Hello, world!"); k*1Lr\1
} .n\JY;"
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C# (C Sharp) #:6-O
class HelloWorldApp .}__XWK5
{ CW1l;uwtU
public static void Main() UyGo0POW
{ 45~x
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System.Console.WriteLine("Hello, world!"); +C%6jGGh
} &bTCTDZh
} n Bm ]?
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IO)Y0J>x
COBOL *7Vb([x4;
IDENTIFICATION DIVISION. BA\aVhmx
PROGRAM-ID. HELLO-WORLD. t<rIg1
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ENVIRONMENT DIVISION. YZ~MByu
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DATA DIVISION. GvVkb=="
7}iv+rQ
PROCEDURE DIVISION. /pMOinuO
DISPLAY "Hello, world!". 66val"^W
STOP RUN. /k'7j*t Z
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Common Lisp .IW`?9O$E
(format t "Hello world!~%") J[}H^FR
< $zJi V
'lIs`Zc5N
DOS批处理 n>ryS/1
@echo off '/O:@P5qY
echo "Hello, world!" 5kHaZ Q
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=j>xu|q
Eiffel Yjoe|
class HELLO_WORLD <Km9Mq
rXB;#ypO
creation qvn.uujYS
make :^7w
feature ZvRa"j
make is JxIJxhA>
local W9SU1{*9
io:BASIC_IO xXJ*xYn"}
do ytttF5-
!!io FWbp;v{
io.put_string("%N Hello, world!") Z6I|Y5#H
end -- make U F"%FF
end -- class HELLO_WORLD vF^d40gV
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Erlang iil<zEic
-module(hello). &%OY"Y~bI!
-export([hello_world/0]). UA<Fxt
cC~RW71
hello_world() -> io:fwrite("Hello, World!\n").
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REW[`MBQ
2U)n^
Forth lu.]R>w
." Hello, world!" CR
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Fortran R`(2Fy%0\k
WRITE(*,10) 9KVJk</:n
10 FORMAT('Hello, World!') ]BO:*&O
STOP >.meecE?Q
END
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J?O0ixU
01r%K@ xX\
HTML (p>|e\(]0
<HTML> R XCn;nM4
<HEAD> Znb={hh
<TITLE> Hello World! </TITLE> $d*9]M4
</HEAD> "\wMs
<BODY> 3E*|^*
<p>Hello World!</p> (=j;rfvP
</BODY> ?i _ACKpw
</HTML> sF{~7IB
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yd;e;Bb7*
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H :a }](Wn
T.da!!'B
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INTERCAL /p
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PLEASE DO ,1 <- #13 _=mzZe[
DO ,1 SUB #1 <- #238 '|[!I!WB`
DO ,1 SUB #2 <- #112 a{`hAI${
DO ,1 SUB #3 <- #112 2>o[
DO ,1 SUB #4 <- #0 *2h%dT:,%
DO ,1 SUB #5 <- #64 G4(R/<J,BQ
DO ,1 SUB #6 <- #238 ?Bf>G]zx
DO ,1 SUB #7 <- #26 Yc[umn^K
DO ,1 SUB #8 <- #248 `w!XO$"]Z
DO ,1 SUB #9 <- #168 AR[m+E
DO ,1 SUB #10 <- #24 u`'"=Y_E
DO ,1 SUB #11 <- #16 E0ED[d,
DO ,1 SUB #12 <- #158 ^8
VW$}
DO ,1 SUB #13 <- #52 KW:N
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PLEASE READ OUT ,1 I[?\Or
PLEASE GIVE UP nXT`7
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nQc,^A)I
Java p#$/{;yy
public class Hello 4Fg2/O_3
{ x*1wsA
public static void main(String[] args) z$Jm1l
{ A|ZT;\
System.out.println("Hello, world!"); @1*^ttC
} 3L&:
} 3m>YR-n$
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7DAP_C
JSP 2 5 \S>
<% .8YxEnXw)(
out.print("Hello, world!"); Uj5-x%~
%> h4]^~stI
gWr7^u&q@|
'WW:'[Syn'
MIXAL x0# Bc7y
TERM EQU 19 the MIX console device number 0=>$J
WF
ORIG 1000 start address Qj^Uz+b
START OUT MSG(TERM) output data at address MSG Wj.t4XG!
HLT halt execution QXb2jWz
MSG ALF "MIXAL" L"b&O<No
ALF " HELL" bB$f=W!m%
ALF "O WOR" l|.}>SfL^u
ALF "LD " @_do<'a
END START end of the program }#^Cj;
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Nuva 6 - 3?&+
<..直接输出..> d]0:r]e
Hello, world! w;,34qbf
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<..或者..> it}h8:^<
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<. <D|&)/#
// 不带换行 mz0{eO
? "Hello, world!" 9VW/Af
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// 或者 `jeATxWv
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// 带换行 uZld9u
?? 'Hello, world!' Q+Bl1xl
.> 'APx
JSB+g;
3H,x4L5j
OCaml Bc8&-eZ,
let main () = J.UNw8z
print_endline "Hello world!";; {]\7
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wa@Rlzij>
d`/8Q9tQ
Pascal wh(_<VZ
program Hello; <N)!s&D
begin 5{HF'1XgZ*
writeln('Hello, world!'); H q6%$!q
end. UV2W~g
}R;}d(C`
dqB,i9--
Perl AGFA;X
#!/usr/local/bin/perl 54p{J
print "Hello, world!\n"; Z' i@;^=A
+QN4hJK
c+ZOC8R
PHP s",Ea*
<?php Fn5BWV
print("Hello, world!"); j/aJD E(+
?> @@H/q
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o<5`uV!f
Pike [3X\"x5@V
#!/usr/local/bin/pike )1
-<v);
int main() XHA|v^
{ r:sa|+
write("Hello, world!\n"); S]@;`_?m{
return 0; @K <Onh`
} J!om"h
sV#%U%un
5$ik|e^:y
PL/I u4hn9**a1
Test: procedure options(main); Mst%]@TG
declare My_String char(20) varying initialize('Hello, world!'); }-tJ .3Zw
put skip list(My_String); GFT@Pqq
end Test; _S) K+C|@
frcX'M}%
bkdXBCBx?
Prolog 5ih>x3S1/
goal +[
?!@)
write("hello,world!"). 6c!F%xU}
#H7
SLQr\
mP*$wE9b,:
Python y`j_]qvt
#!/usr/local/bin/python )<HvIr(xr
print "Hello, world!" :WRD<D_4
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1{M?_~g4
REXX waMV6w)<
say "Hello, world!" (EcP'F*;;y
pT=^o
[.>=>KJ_
Ruby !BVCuuM>w
#!/usr/bin/ruby 'TYO-'aC
print "Hello, world!\n" -n7@r
lq.:/_m0
bqH
[-mu6
Scheme d3z nb@7
(display "Hello, world!") P
DY :?/
(newline) At@0G\^
pmP~1=3
_Yo)m|RaB
sed (需要至少一行输入) 0y$VPgsKf
sed -ne '1s/.*/Hello, world!/p' Y[e.1\d'
Y*@7/2,
gE #|eiu
Smalltalk (87wWhH
Transcript show: 'Hello, world!' mW]dhY 3X
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A o*IshVh
SNOBOL 2K_ QZ
OUTPUT = "Hello, world!" 6)sKg{H
END #jBmWaP.
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3~fi#{
SQL :JSxsA6k
create table MESSAGE (TEXT char(15)); 3F"vK
insert into MESSAGE (TEXT) values ('Hello, world!'); SOG(&)b
select TEXT from MESSAGE; GI{EP&