“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。 Rm`_0}5
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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》。 )<-\ F%&b
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以下是用不同语言写成的Hello World程序的几个例子: `j{5$X
Ada 9IZ}}x
with Ada.Text_Io; use Ada.Text_Io; UmZ#Cm
procedure Hello is ig3HPlC
begin Vi[* a
Put_Line ("Hello, world!"); :
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end Hello; zBV7b| j
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q;]al
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汇编语言 4Z5ZV!
DS0c0lsx
x86 CPU,DOS,TASM JJ[.K*dO
MODEL SMALL Hz&a~
IDEAL wK0vKdi
STACK 100H *U|K~dl]K
q '9u8b
DATASEG =Bu>}$BD
HW DB 'Hello, world!$' BWV)>
-V
YYwFjA@
CODESEG Ugzq;}V#
MOV AX, @data 8`l bKV
MOV DS, AX :1NF#-2\f
MOV DX, OFFSET HW Y4q;
MOV AH, 09H ~'k.'O{
INT 21H musZCg$
MOV AX, 4C00H
'|V"!R)
INT 21H ,\ [R\s
END w}nc^6qH
M|nTO
#lXwBfBMf
x86 CPU,GNU/Linux,NASM L q<#
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Ib3n%AG
;Enter this into "hello.asm" then type: 1S
.~Vh0Q,
;"nasm -f elf hello.asm" 1\K%^<QY
;"ld hello.o -o hello" yXyL,R
;"./hello" Wv!#B$J~U
q9 !)YP+w
section .data ;data section declaration w ;+x g
msg db 'Hello World!',0AH 1'ts>6b
len equ $-msg ;string length +Q pgG4h
n?'I&0>M
section .text ;code section declaration 1 ~fD:
global _start ;entry point (start of execution) ([\mnL<FC
_start: mov edx,len ;string length ahQdBoj
mov ecx,msg ;string start IJ >qs8
mov ebx,1 ;file handle: stdout R"%zmA@o=
mov eax,4 ;sys_write NH+?7rf8
int 80h ;kernel system call L|O[u^
W
u?A} fH
mov ebx,0 ;return value !c+,OU[
mov eax,1 ;sys_exit EY'kIVk
int 80h ;kernel system call /Ilve
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gD`|N@W$5
x86 CPU,Windows,MASM32 {}>s0B
.386 i [,9hp
.model flat,stdcall 5Us$.p
option casemap:none _D<=Yo
;Include 文件定义 .=@xTJh
include windows.inc |hHj7X<?k
include user32.inc &GMBvmP
includelib user32.lib ;$=kfj9 :7
include kernel32.inc IkW8$>
includelib kernel32.lib R]L$Ld< ij
;数据段 =
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.data uW4)DT9[5
szCaption db 'A MessageBox!',0 5,Rxc=
szText db 'Hello,world!',0 NL`}rj
;代码段 "QCtF55X&
.code E<6Fjy
start: i" 0]L5=P
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Ed">$S
invoke ExitProcess,NULL ob= ](
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> FO[x
c;
end start iN\m:m
EyU 5r$G
I'W`XN
AWK l;F\s&^
BEGIN { print "Hello, world!" } `p qj~s
~@Yiwp\"
(.r9bl
BASIC R-%v??
传统版BASIC(例如GWBASIC): $wnK"k%G
haTmfh_|
10 PRINT "Hello, world!" EL/~c*a/
20 END C=k]g
(x)}k&B;
或在提示符输入: <V?csx/eRd
QlxzWd3=q
?"Hello, world!":END )67pBj
P_7QZ0k/
现代版BASIC(例如Quick BASIC): OO$YwOKS
4th*=ku
Print "Hello, world!" >aw`kr
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以下的语句在Quick BASIC中同样有效: "INIP?
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? "Hello,world!" `LroH>_
/sU~cn^D5
ERka l7+
BCPL >oD,wSYV~
GET "LIBHDR" 10gh4,z[
X%>nvp
LET START () BE -q&K9ZCl`
$( dUvgFOy|P
WRITES ("Hello, world!*N") G+5_I"`W
$) JCe%;U
^$>Q6.x?*)
[:Upn)9
Befunge 0eMO`8u[A
"!dlrow olleH">v ;*J_V/&?
, VWLqJd>tr1
^_@ 3P,
ul*e
)c6t`SBwi
4DwQ7KX
Brainfuck p+.xye U(
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< I-glf?F)
+++++++++++++++.>.+++.------.--------.>+.>. l.>3gjr
A r=P;6J
":I@>t{H*
C Z=KHsMnB
#include <stdio.h> \86:f<)P
2h;#BJ))
int main(void) a62'\wF>D
{ #TUuk
printf("Hello, world!\n"); g6D7Y<}d
return 0; l b9O
} JLz.lk*.
k00&+C
E[=#Rw!*
C++ YqQAogyh
#include <iostream> O)FkpZc@9c
7;8DKY q
int main() F!RzF7h1
{ hJc^NU5
std::cout << "Hello, world!" << std::endl; (ah^</
return 0; bxc!x>)
} SuJa?VU1w
xo
GX&^=
7*MjQzg-P
C++/CLI O$*\JL
int main() A[hvT\X
{ eWk
W,a
System::Console::WriteLine("Hello, world!"); L> \/%x>Wx
} kJ_XG;8
'Szk!,_
FgnS+c3W(
C# (C Sharp) F2^qf
class HelloWorldApp AMSn^75
{ uS|f|)U&
public static void Main() T/Bx3VWL
{ 1nZ7xCDK98
System.Console.WriteLine("Hello, world!"); 4qKMnYR
} Ly~s84k_po
} cT.8&EEW
IxU#x*
X[E!q$ag
COBOL m\"X%Y#
IDENTIFICATION DIVISION. ?l?_8y/ww
PROGRAM-ID. HELLO-WORLD. 4_KRH1
FdE9k\E#/)
ENVIRONMENT DIVISION. G0mvrc-(
m`!Vryf
DATA DIVISION. D>6vI
*7`amF-
PROCEDURE DIVISION. @|;XDO`k;
DISPLAY "Hello, world!". rx\f:-3g
STOP RUN. $=ua$R4Z+
jQX9KwSP
Egm-PoPe
Common Lisp d-ML[^G
(format t "Hello world!~%") Fu*Qci1Z
E/Adi^
;/~%D(
DOS批处理 oFDJwOJ'Bj
@echo off !4"<:tSO
echo "Hello, world!" jlM%Y
ZC
_OY<Hb3%M
BnPL>11Y
Eiffel T,uVt^.R+
class HELLO_WORLD IuOQX}
d$<1Ma}
creation 15Vo_
wD<y
make 'Im&&uSkr
feature 3IYbgUG
make is r.10b]b
local [W--%=Ou
io:BASIC_IO w@ $_2t
do x)prI6YMv\
!!io &?0hj@kd~
io.put_string("%N Hello, world!") [h@MA|
end -- make NB.&J7v
end -- class HELLO_WORLD g6!#n
rT!9{uK
IfF&QBi
Erlang K/D,sH!
-module(hello). 40Z/;,wp{
-export([hello_world/0]). - *_"ZgE
/e50&]2w
hello_world() -> io:fwrite("Hello, World!\n"). q,fk@GI'2
=G-u "QJ6
nTH!_S>b(Y
Forth tRzo}_+N
." Hello, world!" CR Yvxp(
-) \!@n0
&k0c|q]
Fortran z!
DD'8r>
WRITE(*,10)
j.vBld
10 FORMAT('Hello, World!') J>S`}p
STOP s[tFaB 1
END 1`@rAA>h'
v}^
f8nVR
!Z`xwk"!
HTML -"X}
)N2
<HTML> Rss=ihlM
<HEAD> !#Hca
<TITLE> Hello World! </TITLE> oQ_n:<3X
</HEAD> cwKOE?!
<BODY> -nKBSls
<p>Hello World!</p> ?Ulc`-d
</BODY> T7!=KE_z
</HTML> n+;PfQ|
Bl8&g]dk
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HQ9+ +H8;*uZ|k,
H aShZdeC*f
i4*!t.eI
4j
h4 XdH
INTERCAL m8ydX6~max
PLEASE DO ,1 <- #13 lITZ|u
DO ,1 SUB #1 <- #238 ]Zz<9zix
DO ,1 SUB #2 <- #112 *|Fl&`2
DO ,1 SUB #3 <- #112 Or[uq,Dm16
DO ,1 SUB #4 <- #0 7LdNE|IP
DO ,1 SUB #5 <- #64 S&m5]h!D
DO ,1 SUB #6 <- #238 Le':b2o
DO ,1 SUB #7 <- #26 B\a#Vtyut
DO ,1 SUB #8 <- #248 !B\[Q$
DO ,1 SUB #9 <- #168 QWWoj[d#
DO ,1 SUB #10 <- #24 NurbioFL
DO ,1 SUB #11 <- #16 j[o5fr)L
DO ,1 SUB #12 <- #158 q;a#?Du o
DO ,1 SUB #13 <- #52 DUK.-|a7
PLEASE READ OUT ,1 ;q&\>u:
PLEASE GIVE UP vXi}B
ds9`AiCW>
3`aJ"qQE
Java ,*$/2nB^
public class Hello tXIre-. 2}
{ `[J(au$z
public static void main(String[] args) y:zo/#34
{ D7Nz3.j
System.out.println("Hello, world!"); j']Q-s(s
} pd{;`EW|
} %C8fv|@:f
k^PqB+P!
(B zf~#]~
JSP Y)L\*+
>"[
<% 5bzYTK&-
out.print("Hello, world!"); WsCzC_'j.
%> ^2PQ75V@.
lC|{{?m
+/Lf4??JV
MIXAL fKY1=3
TERM EQU 19 the MIX console device number :4D#hOI
ORIG 1000 start address 7l})`>
k
START OUT MSG(TERM) output data at address MSG 4IYC;J2L
HLT halt execution K!9rH>`\
MSG ALF "MIXAL" |V|)cPQ
ALF " HELL" d4P0f'.z
ALF "O WOR" 5}4MXI4
ALF "LD " TIa`cU`
END START end of the program (u
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kty,hAXe
Px4zI9;cB
Nuva u?f3&pA
<..直接输出..> #dGg !D
Hello, world! PHa#;6!5
r} ~l(
<..或者..> dkQA[/k
nA]dQ+5sT
<. C"IP1N
// 不带换行 Hvq< _&2
? "Hello, world!" 7=ZB;(`L1
xUD$i?3z
// 或者 'ga1SbA]
IfZaK([
// 带换行 GZc%*
?? 'Hello, world!' G\H@lFh
.> @$79$:q N
j1>77C3
^~5tntb.
OCaml NoJo-vo*
let main () = >~$ S!
print_endline "Hello world!";; .6E7 R
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J 6S
Pascal <