“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。 q#B^yk|Y
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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》。 89KX.d
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以下是用不同语言写成的Hello World程序的几个例子: >`DbT:/<
Ada ]X+3"
with Ada.Text_Io; use Ada.Text_Io; fc lmxTy
procedure Hello is x#"|Z&Dw0
begin GDC`\cy
Put_Line ("Hello, world!"); WAiEINQ^)
end Hello; 42LlR
0
VAf~,T]Ww
'01H8er
汇编语言 |i-Q fpn
XJnDx 09h
x86 CPU,DOS,TASM 2A@9jl s
MODEL SMALL o[*</A
}
IDEAL '2=u<a B
STACK 100H MGIpo[
TEOV>Tt
DATASEG ~*D)L'`2M
HW DB 'Hello, world!$' W#|]m=2W
?}sh@;]*h
CODESEG +v%V1lf^~
MOV AX, @data l|-1H76
MOV DS, AX MJ[#Gq\0R
MOV DX, OFFSET HW th8f
MOV AH, 09H b3e:F{n
^
INT 21H Y4`MgP8t
MOV AX, 4C00H NLM ]KT
INT 21H ~*-ar 6
END _)Uw-vhQiT
'X{cDdS^
L'4ob4r{L
x86 CPU,GNU/Linux,NASM N)A?*s'v~
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). qWe1`.o
;Enter this into "hello.asm" then type: 9@C3jZ+9`H
;"nasm -f elf hello.asm" o9M[Zr1@k
;"ld hello.o -o hello" u4B, |_MK
;"./hello" *!UY;InanX
>x)YdgJ*
section .data ;data section declaration WM BntB
msg db 'Hello World!',0AH !_s|h@
len equ $-msg ;string length hNUAwTH6
dz.]5R
section .text ;code section declaration iC&=-$vu
global _start ;entry point (start of execution) HTI1eLZ2
_start: mov edx,len ;string length .z+?b8Q\
mov ecx,msg ;string start 1&c>v3 $2
mov ebx,1 ;file handle: stdout 8Q^yh6z
mov eax,4 ;sys_write %JDG aG'
int 80h ;kernel system call CFqoD l
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mov ebx,0 ;return value `(1em%}
mov eax,1 ;sys_exit !cw<C*
int 80h ;kernel system call 0Mt2Rg}
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~6@zXHAS
x86 CPU,Windows,MASM32 zvL&V
.>
.386 ~\/>b}^uf'
.model flat,stdcall 0CI?[R\
option casemap:none }gyJaMA
;Include 文件定义 VB*N;bM^
include windows.inc (6z^m?t?
include user32.inc exV6&bdu
includelib user32.lib wXDF7tJh
include kernel32.inc 'P}"ZHW
includelib kernel32.lib +V1EqC*
;数据段 W^0F(9~!(
.data m_~
p G
szCaption db 'A MessageBox!',0 qAm$yfYs`
szText db 'Hello,world!',0 l?(nkg["nY
;代码段 Y+<C[Fiq
.code (w]w
2&YD
start: ]4\^>
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK `LH!"M
invoke ExitProcess,NULL pOD|
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nWN~G
end start V4qHaG
]>/YU*\
!`\W8JT+
AWK Dqe)8 r
BEGIN { print "Hello, world!" } y?<[g;MuT
VgZ<T,SuW
!^!<Xz;
BASIC PB4E_0}h
传统版BASIC(例如GWBASIC): >1a-}>r
Vj4
if@Z
10 PRINT "Hello, world!" _`/0/69
20 END wQ!~c2a<8
#`:s:bwM:
或在提示符输入: fOJk+?
c
Rp A76ug
?"Hello, world!":END Nv*x^y]
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现代版BASIC(例如Quick BASIC): qLKyr@\'
u_@%}zo?5*
Print "Hello, world!"
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twt
Bt L
以下的语句在Quick BASIC中同样有效: ]l+Bg;F#V
\l{*1lQ`
? "Hello,world!" B+);y
p\:_E+lsU
Di9yd
BCPL D/V.o}X$
GET "LIBHDR" 8_>\A=
E
:84ja>`c
LET START () BE Y+iC/pd
$( G#5Cyu<r!
WRITES ("Hello, world!*N") @iUzRsl
$) T;GBZR%
V-A^9AAPm
3k;U#H
Befunge vi4 1`
"!dlrow olleH">v )&+_T+\
, BArsj
^_@ h@Ea$1'e,
dVVeH\o
\bQ|O7s
Brainfuck Jkpw8E7
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< @<CJbFgJp
+++++++++++++++.>.+++.------.--------.>+.>. <Xp
F
#1hT#YN
Yp 6;Y7^
C qt/syF&s
#include <stdio.h> qS&PMQ"$
rZu_"bcJ
int main(void) WeuV+}\b
{ `m3@mJ!>\
printf("Hello, world!\n"); -_uL;9r
return 0; 2-llT
} =d~]*[8
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x@DXW(
C++ eno*JK
#include <iostream> M =yZ5~3
?MKf=!w
int main() P)1@HDN==
{ 2@08 V|
std::cout << "Hello, world!" << std::endl;
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return 0; 6xdu}l=%
} "1%<IqpU+
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*^Zt5 zk
C++/CLI t8i"f L
int main() IS&`O=7
{ 0#K@^a
System::Console::WriteLine("Hello, world!"); W{ eu_
} {Hp?rY@
P|h<|Gcp
OOl{
C# (C Sharp) F1M@$S,
class HelloWorldApp QIi*'21a+
{ 7;CeQx/W)W
public static void Main() [2i+f<
{ cnLC> _hY
System.Console.WriteLine("Hello, world!"); =#BeAsFfO
} ~e{2Y%
} *!Am6\+
<$?:|
-mY90]g
COBOL +V2a|uvEc
IDENTIFICATION DIVISION. rA`zuYo
PROGRAM-ID. HELLO-WORLD. fEVuH]
r0\bi6;s/
ENVIRONMENT DIVISION. DIk$9$"<x
]2h[.qa
DATA DIVISION. ~%#?;hJ
*}/xy
SH3
PROCEDURE DIVISION. T"QY@#E
DISPLAY "Hello, world!". I,YGm
STOP RUN. "b1_vA]03
IE_@:]K}Ja
v/m`rc]e
Common Lisp jQb=N%5s
(format t "Hello world!~%") IC}zgvcW
So`xd
*C!
@b>]q$)(}
DOS批处理 5&}icS
@echo off {_q2kk
echo "Hello, world!" 46XB6z01
T&R`s+7
n|,Es!8:o
Eiffel 2~ 'Q#(
class HELLO_WORLD (S2<6Nm8
hJ}G5pX
creation !?l 23(d
make E32z(:7M
feature `/ HygC6
make is 3_h%g$04s
local PA,j;{,(b
io:BASIC_IO qWanr7n]@
do Rw/G =zV@2
!!io ED?s[K
io.put_string("%N Hello, world!") E_H1X'|qS4
end -- make qL'3MY.!
end -- class HELLO_WORLD Q'8v!/"}p{
?-i|f_`
kkJg/:g
Erlang jV<LmVcZY
-module(hello). r p@=
-export([hello_world/0]). i44:VR|
Z(<ul<?r
hello_world() -> io:fwrite("Hello, World!\n"). piId5Gx7
7Ru0>4B
AGv;8'`
Forth .s!:p pwl
." Hello, world!" CR v,M2|x\r}
NGze: gPmO
"q(&<+D@
Fortran ,88Y1|:X
WRITE(*,10) -"cN9RF
10 FORMAT('Hello, World!') xS(sR x+A
STOP TWs|lhC7!
END >N,G@{FR
hV,3xrm?P
*jJ62-o
HTML ,h>w %
<HTML> kEXcEF_9P
<HEAD> cYp}$
<TITLE> Hello World! </TITLE> Z
ZiS$&NK8
</HEAD> V`H#|8\i
<BODY> {$EXI]f
<p>Hello World!</p> @"~\[z5
</BODY> <]9MgfAe
</HTML> lyi}q"Kn*;
G{"1I
%b*%'#iK
HQ9+ )8<X6
H c8'8DM
.Gv~e!a8
Ym6ec|9;
INTERCAL }UO,R~q~
PLEASE DO ,1 <- #13 D~y]d
DO ,1 SUB #1 <- #238 <N*>9S,}
DO ,1 SUB #2 <- #112 x$Dv&4
DO ,1 SUB #3 <- #112 */\.-L{h
DO ,1 SUB #4 <- #0 n;=A'g|Q
DO ,1 SUB #5 <- #64 e7qT;
DO ,1 SUB #6 <- #238 t/$xzsoJZr
DO ,1 SUB #7 <- #26 C{ti>'"V
DO ,1 SUB #8 <- #248 0GR9opZtA
DO ,1 SUB #9 <- #168 +/X'QB$R
DO ,1 SUB #10 <- #24 =QC^7T
DO ,1 SUB #11 <- #16 e"2QV vB
DO ,1 SUB #12 <- #158 FjydEV
DO ,1 SUB #13 <- #52 #<~f~{x
PLEASE READ OUT ,1 J{Ay(
PLEASE GIVE UP Cn55%:
[x)e6p)
U;nC)'~YW9
Java P$QjDu-
public class Hello x3P@AC$\
{ g\l;>
public static void main(String[] args) Lg?'1dg
{ ~h@tezF
System.out.println("Hello, world!"); }ot _k-
} O`u! P\
} bPOx~ CMh
O7\s1
V;
(LfVa`<1
JSP 4W?<hv+k7*
<% WAa?$"U2
out.print("Hello, world!"); n=&c5!
%> 5;{Bdvcv
47 RY pd
q>[% C5
MIXAL :9#`|#uh
TERM EQU 19 the MIX console device number {eXYl[7n
ORIG 1000 start address J
v#^GNm
START OUT MSG(TERM) output data at address MSG vh HMxOZ;
HLT halt execution yRYWx` G
MSG ALF "MIXAL" s]N-n?'G"
ALF " HELL" j[fQs,efK
ALF "O WOR" LnDj
ALF "LD " QdTe!f|
END START end of the program Q#N+5<]J)#
/kz&9FM
mQs$7t[>t
Nuva [z~Nw#
<..直接输出..> K[[k,W]qb
Hello, world! OeYLL4H
@NIypi$T
<..或者..> eqR#`
uI2'jEjO
<. Q7r,5w&cm
// 不带换行 7j:{rCp3J
? "Hello, world!" gp HwiFc
`/zt&=`VB
// 或者 %Let AR
/;4MexgB%
// 带换行 `$H
?? 'Hello, world!' M@ kZ(Rkv
.> =dBrmMh
[S:)UvB
<<6w9wNon
OCaml G!8pF
let main () = ?nW#qy!R
print_endline "Hello world!";; As|/
O7%
sQZ8<DpB
f>dkT'4
Pascal ,7P^]V1
program Hello; !P$xh
begin \2pFFVT
writeln('Hello, world!');
A232"p_
end. tTH%YtG
Y2-bU 7mo
>n~p1: $
Perl H Im,
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#!/usr/local/bin/perl 1RbYPX
print "Hello, world!\n"; 7Ca\ (82
cEdJn@ ,
'cN#rHPB6
PHP }yw;L(3
<?php 9/Dt:R3QU
print("Hello, world!"); v{ n}%akc
?> =-LX)|x}
>8fH5
1omvE9
%zM
Pike >UY_:cW4%m
#!/usr/local/bin/pike &.hRVW(
int main() |"qB2.[
{ ~C'nBV
write("Hello, world!\n"); FH8mK)
return 0; #<Nvy9
} ;6nZ
4QAIQQS
]Cn*C{
PL/I [IFRwQ^%_O
Test: procedure options(main); X'7S|J6s
declare My_String char(20) varying initialize('Hello, world!'); jHH
put skip list(My_String); O/9%"m:i
end Test; WG
!t!1p
rs Uw(K^
@z)tC@
Prolog JjLyV`DJ
goal >x
ghq
write("hello,world!"). PbUcbb17
:ZS8Zm"
+esNwz_
Python 6^O?p2xpo
#!/usr/local/bin/python Pmlgh&Z
print "Hello, world!" VhFRh,J(T
C'/M/|=Q#
_SC
REXX $H-D9+8 7
say "Hello, world!" 1 {x~iZa
@:+n6
Q\#{2!I
Ruby H
r^15
#!/usr/bin/ruby )_*a7N!
print "Hello, world!\n" \h7J/es^p!
nX\]i~
@gSFvb bc
Scheme }u_EXP8M
(display "Hello, world!") Pgw%SMEp
(newline) LQ\
ELJj
VnSj:LUD
P^3m:bE]
sed (需要至少一行输入) \1mM5r~
sed -ne '1s/.*/Hello, world!/p' ~Oq,[,W
&U$8zn~[k
9LO.8Jy
Smalltalk }
ndvV~*1
Transcript show: 'Hello, world!' Cxk$"_
_Sgk^i3v
`bZU&A(`Be
SNOBOL E)Qh]:<2v
OUTPUT = "Hello, world!" PR@4' r|a
END G:c8`*5Q
M&djw`B
Uk*;C
SQL iCnUnR{
create table MESSAGE (TEXT char(15)); TdP{{&'9
insert into MESSAGE (TEXT) values ('Hello, world!'); rw8J:?0x
select TEXT from MESSAGE; nN=:#4
>Y
drop table MESSAGE; pO/SV6N
vbA7I<;
\gp,Txueb
Tcl AO}i@YJth
#!/usr/local/bin/tcl o%+A<Ri
puts "Hello, world!" A_jB|<bjTP
sO6g IPU^
-[=AlqL
TScript
AZy~Q9Kc
? "Hello, world!" -':"6\W
9IvcKzS2
RZd4(7H=q
Turing 7"n1it[RJ8
put "Hello, world!" Lk`k>Nn)
W?^8/1U
qXB03}] G
UNIX-style shell hr<7l
C
程序中的/bin/sh可改为您使用的shell )-.Cne;n
k?["F%)I
#!/bin/sh ^%oG8z,L
echo 'Hello, world!' LZQFj/,Jg
+f\pk \Ith
RUS7Z~5
GUI A&|Wvb=
UN *dU
Delphi r ,3Ww2X-
program HelloWorld; Fp5NRM*-!
uses @cu}3>
Dialogs; \za5:?[xB
begin ?Rt1CDu
ShowMessage('Hello, World!'); x0u?*5-t
end. of+phMev
5mna7BCEb
m0I #
Nuva -B *<Q[_
<. XWUvP
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) R(2HYZ
.> y\)G7
(
_H4$$
O^X[9vrW
Visual Basic m~Y'$3w
MsgBox "Hello, world!" B:3+',i1
'或者 l&6U|q`
Print "Hello, world!" `R=a@DQ
{DEzuU
@ate49W
Visual FoxPro POqRHuFq
? "Hello, world!" u=@h`5-fp
~T>jBYI0
z*M}=`M$
X11 RwAbIXG{0
用一个程序 Yg=E@F
Z:_m}Ya|
xmessage 'Hello, world!' r/CEYEJ&X
U`bC>sCp
用C++和gtkmm 2 _W@,@hOH
fa!3/X+
#include <iostream> lFp!XZ!
#include <gtkmm/main.h> 1u"R=D9p,=
#include <gtkmm/button.h> Kk!6B
#include <gtkmm/window.h> >a&