“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。 #s]` jdc
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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》。 \XgpwvO".
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以下是用不同语言写成的Hello World程序的几个例子: :)Z.!
Ada b#{[Pk,w9
with Ada.Text_Io; use Ada.Text_Io; ]@mV9:n{
procedure Hello is #BwkbOgr
begin 0r'<aA`=I
Put_Line ("Hello, world!"); aiwKkf`\
end Hello; J4^aD;j
\~@a/J
~e<h2/Xc
汇编语言 Z'4oE
)
222Mm/QN
x86 CPU,DOS,TASM t8upS
u|
MODEL SMALL ~"#[<d
IDEAL 1usLCG>w{
STACK 100H )2y#
cM*
xe!6Pgcb
DATASEG C.q4rr
HW DB 'Hello, world!$' .Fn7yTQ%
)i*- j=
CODESEG tU>?j1
MOV AX, @data H.]rH,8
MOV DS, AX 4ai|*8.
MOV DX, OFFSET HW !p|d[
MOV AH, 09H md`"zV
INT 21H gKWsmx!["
MOV AX, 4C00H :PF6xL&
INT 21H 0l>4Umxr{J
END 3=xN)j#B
>]S-a-|Bp
,5HC&@
x86 CPU,GNU/Linux,NASM 1wM~),B8
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). E)utrO R
;Enter this into "hello.asm" then type: a+ lGN
;"nasm -f elf hello.asm" I<^&~==
;"ld hello.o -o hello" %cFqD
& 6
;"./hello" O7D61~G]
ntt:>j$
section .data ;data section declaration gj-MkeI)
msg db 'Hello World!',0AH Dt\rMSjZ9
len equ $-msg ;string length "YePd*W
^OnZ9?C{R
section .text ;code section declaration byetbt(IF
global _start ;entry point (start of execution) MY"8!
_start: mov edx,len ;string length JUlCj#%
mov ecx,msg ;string start ] B3\IT
mov ebx,1 ;file handle: stdout E\dJb}"x %
mov eax,4 ;sys_write Bi$nYV)-l
int 80h ;kernel system call G[M{TS3&Ds
h;?H4j
mov ebx,0 ;return value 1/%g
VB8
mov eax,1 ;sys_exit `c%{M4bF\
int 80h ;kernel system call ;<)<4N"
)$7-CNWr~
Emx`+9
x86 CPU,Windows,MASM32 Fl0 :Z
.386 T+U,?2nF:
.model flat,stdcall 19.oW49Sw
option casemap:none ;ro%Wjg`}
;Include 文件定义 :FqHMN
include windows.inc U>=&
2Z2?
include user32.inc Z_}[hz$
includelib user32.lib >%{H>?Hn
include kernel32.inc (nLT8{>0
includelib kernel32.lib ud,=O Xq
;数据段 ~Ddlr9Ej
.data yV/A%y-P
szCaption db 'A MessageBox!',0 # 8fq6z|JZ
szText db 'Hello,world!',0 @Rp#*{
;代码段 yEB1gYJB
.code + tza]r:
start: rwSmdJ~
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK hk.Zn.6A'
invoke ExitProcess,NULL Ir :y#
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .P5OUK
end start T?Y/0znB*
1aBQ.-E-
"[tb-$ER
AWK &D*22R4{CX
BEGIN { print "Hello, world!" } ZI/Ia$O
Z %\*\6L)
-J\R}9 lIm
BASIC qVMBZ\`Qm
传统版BASIC(例如GWBASIC): bL9vjD'}
;'~GuZ#I
10 PRINT "Hello, world!" 9E-]S'Z
20 END r;
pS_PV
LOf)D7T
或在提示符输入: W5_aS2$
VYC$Q;Z
?"Hello, world!":END @^UnrKSd
l11+sqg
现代版BASIC(例如Quick BASIC): C|hD^m
1}Mdo&:t
Print "Hello, world!" fA{t\
.tH[A[/1 a
以下的语句在Quick BASIC中同样有效: .\:{6_
]mSkjKw
? "Hello,world!" t],5{UF
jNu`umS
YR/%0^M'0
BCPL 6h%_\I.Z[[
GET "LIBHDR" /_.1f|{B
?f'iS#XL
LET START () BE mX&!/U
$( vS'l@`Eg]
WRITES ("Hello, world!*N") t`oH7)nut
$) q@0g KC&U
*j"u~ NF
FQW{c3%qZ
Befunge *p Q'w
"!dlrow olleH">v }{S
f*
, yirQ
^_@ 9w:9XziT
bj$VYS"kY
1Q>D^yPI[
Brainfuck Y `ySNC
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ~H1ZQ[
+++++++++++++++.>.+++.------.--------.>+.>. MR`lF-|a|
5%1a!MM
M
49d02AU%
C Tw0GG8(c
#include <stdio.h> U1 ;<NUg
bji^b@us_
int main(void) 8PXjdHR
{ 3]cW08"c
printf("Hello, world!\n"); [JyhzYf\
return 0; o~ J~-$T{
} v|
Yh]y
{Ne5*HFV
_(1Shm
C++ <2,NWn.
#include <iostream> :N>n1tHL;A
zPn2
int main() k=M_2T'
{ QuWWa|g^.
std::cout << "Hello, world!" << std::endl; R?L?6~/q
return 0; 7+;$_,Xo<
} fjP(r+[
![H{ndH!Q
%(YU*Tf~
C++/CLI c3]`W7E6L
int main() yi&6HNb
{ c]1\88
System::Console::WriteLine("Hello, world!"); m]D3ec\K'
} 8K@>BFk1.
9^<Y~rkm
5zi}OGtXv
C# (C Sharp) V N<omi+4
class HelloWorldApp x*7Q
{ @/f'i9?oM`
public static void Main() `% ulorS
{ f@7HVv&
System.Console.WriteLine("Hello, world!"); %ZbdWHO#
} ,:=g}i
} *-\qO.4\
h#JX$9
67D{^K"KT
COBOL PL|zm5923
IDENTIFICATION DIVISION. &@ [pJ2
PROGRAM-ID. HELLO-WORLD. nBkzNb{"AZ
Or3GrZ!H
ENVIRONMENT DIVISION. tQWjNP~
-|g9__|@
DATA DIVISION. )kk10AZV-E
Bj*\)lG<
PROCEDURE DIVISION. qac8zt#2
C
DISPLAY "Hello, world!". H9%[!
RF
STOP RUN. cf+EQY
l?<DY$H
0
'dvi@Jx
Common Lisp _MLbJ
(format t "Hello world!~%") v9
*WM3
?R":"*eu
)\RG
NJMC
DOS批处理 .Q5zmaA]
@echo off )j\9IdkU;y
echo "Hello, world!" T-a[
4H*M^?h\#
h-+vNhH
Eiffel FaQz03N\
class HELLO_WORLD z0T9tN!(
>QSlH]M
creation >1 %|T
make 7xh91EU:4
feature U%r|hn3
make is !%Bhg?
local u2
t=*<X
io:BASIC_IO RaC8Sq7hW
do VOGx
!!io vww>] Z}
io.put_string("%N Hello, world!") -Dy":/Bk
end -- make WJTc/
end -- class HELLO_WORLD BT^HlW<
y&L Lx[8^
8e"MP\0V
Erlang 1YScZ
-module(hello). noZ!j>f{@l
-export([hello_world/0]). SQT]'
XIBm8IkF
hello_world() -> io:fwrite("Hello, World!\n"). g#lMT%
kca#ssN
~B\O{5W
Forth %;,4q B
." Hello, world!" CR *?rO@sQy]
YVLK X}$)(
lS{ ^*(a
Fortran %:N;+1
WRITE(*,10) $EG9V++b3
10 FORMAT('Hello, World!') 9_xrw:4
STOP e7r3o,!
END 9c{T|+]
ov\+&=IRG
]ONBr(M\
HTML &G)/i*
<HTML> )(+q~KA}
<HEAD> _sAcvKH
<TITLE> Hello World! </TITLE> )nlFyWXh.
</HEAD> hMyN$7Z
<BODY> ${{[g16X
<p>Hello World!</p> M'nzoRk
</BODY> %$'Z"njO&
</HTML> E<'V6T9bi
q{l %k
2$Umqt
HQ9+ PIHKSAnq
H 3,0b<vfSv
MDCwgNPiQW
d)kOW!5\
INTERCAL ^B$cfs@*
PLEASE DO ,1 <- #13 M^{=&
DO ,1 SUB #1 <- #238 89UR w9
DO ,1 SUB #2 <- #112 {~`{bnx^]7
DO ,1 SUB #3 <- #112 pfQ3Y$z
DO ,1 SUB #4 <- #0 YBL.R;^v
DO ,1 SUB #5 <- #64 Ac'pu,v
DO ,1 SUB #6 <- #238 gjzU%{T?
DO ,1 SUB #7 <- #26 ',!>9Dj
DO ,1 SUB #8 <- #248 NAX`y2z
DO ,1 SUB #9 <- #168 (Rsf;VPO
DO ,1 SUB #10 <- #24 D< 0))r
DO ,1 SUB #11 <- #16 VV"w{#XKw
DO ,1 SUB #12 <- #158 Uf9L*Z'6il
DO ,1 SUB #13 <- #52 '.]<lh!
PLEASE READ OUT ,1 LKgo(&mY
PLEASE GIVE UP M_h8{
+z<GycIc?K
y
~Fi
Java 5!BW!-q
public class Hello S^iT&;,
{ O~|Y#T
public static void main(String[] args) +5Ju `Z
{ a5 pXn v]A
System.out.println("Hello, world!"); @w(X}q1
} j>G|Xv
} pGr4b:N
<Qt9MO`a
cNMDI
JSP Bh7hF?c Sj
<% 0,B"p
out.print("Hello, world!"); ]"'1-h91
%> Bm 4$
3|%058bF
a7aj:.wi
MIXAL P1R[M|Fx
TERM EQU 19 the MIX console device number yp)D"w4@
ORIG 1000 start address h)^|VM
START OUT MSG(TERM) output data at address MSG zU'7x U-
HLT halt execution Y]!&, e,
MSG ALF "MIXAL" pTT00`R
ALF " HELL" sl:1P^b
ALF "O WOR" K^P&3H*(/n
ALF "LD " :i|Bz6Ht4
END START end of the program v8zO Y#?
^%0^DN
VO~%O.>
Nuva *y', eB
<..直接输出..> $,0EV9+af
Hello, world! $xis4/2
.)<l69ZD Z
<..或者..> \Nk578+AA
3R)|DGql=1
<. )4N1EuD6
// 不带换行 ]|u7P{Z"R
? "Hello, world!" X^rFRk
mY]o_\`
// 或者 cPkP/3I]h
S VypR LVB
// 带换行 G8'
?? 'Hello, world!' ab`9MJc;
.> 5!aI~(3<
~[=d{M!$W
D=K{(0{"/,
OCaml G
@EEh.s9
let main () = v`S ;.iD
print_endline "Hello world!";; O$N;a9g
IC1nR
u2I
DXQ]b)y+N
Pascal c}s#!|E0v
program Hello; dH'02[;
begin ZQn>+c2%!
writeln('Hello, world!'); LW#U+bv]Dq
end. +S'm<}"1
8_pyfb
nJ$2RN
Perl TpI8mDO\W
#!/usr/local/bin/perl FL4BdJ\
print "Hello, world!\n"; '6\ZgOO9
p+0gE5
vy`
lfbX@
PHP "H=N>=g0E
<?php ^XG$?2<U
print("Hello, world!"); E!uQ>'iq.
?> q>wO=qWx
) I(9qt>Y
XA;f.u
Pike nW<nOKTnk_
#!/usr/local/bin/pike bjI3xAs~
int main() ?H>^X)Ph
{ &[SFl{fx>-
write("Hello, world!\n"); brG!TJ
return 0; KT+{-"4-
} 0/1=2E^,
%gj7KF
[WV&Y,E
PL/I f>e0l'\
Test: procedure options(main); /qMiv7m~Q
declare My_String char(20) varying initialize('Hello, world!'); `jyyRwSoe
put skip list(My_String); Db !8N
end Test; w`fbUh6/
g<7Aln}Nl\
ia-ht>F*;
Prolog k~I]Y,
goal Jfo'iNOu
write("hello,world!"). %dzO*/8cWo
]{|lGtK %
D!ASO]
Python # ,97 ]
#!/usr/local/bin/python |'I>Ojm
print "Hello, world!" KW3<5+w]c
<L<^uFB
u /DE
REXX q*tGlM@R?
say "Hello, world!" bZ:xH48MY
Bs|Xq'1M!;
%yd(=%)fMB
Ruby y4$$*oai&
#!/usr/bin/ruby Xfbr;Jt"<
print "Hello, world!\n" B/o8r4[80
C+"c^9[
PgA1:i&'
Scheme 8aKS=(Z!j
(display "Hello, world!") o7WAH@g
(newline) ijvDFyN>
6RguUDRQ
>P:U9
b
sed (需要至少一行输入) k+*pg4'
sed -ne '1s/.*/Hello, world!/p' |QMmF" 0
`&'{R<cL
s:_a.4&Y
Smalltalk !m%'aQHH(
Transcript show: 'Hello, world!' vVIND
J*Ie# :J]
Ryh 0r
SNOBOL (:O6sTx-hE
OUTPUT = "Hello, world!" z] -m<#1
END ru6M9\h*
R MOs1<D
VW*?(,#j{
SQL l9OpaOVfJ
create table MESSAGE (TEXT char(15)); Dsn=fht
insert into MESSAGE (TEXT) values ('Hello, world!'); m*CW3y{n)
select TEXT from MESSAGE; ^fH)E"qq5
drop table MESSAGE; d{t@+}0.u
pzoh9}bue
]9)iBvQlj
Tcl 'Bxj(LaV-
#!/usr/local/bin/tcl 0
f$96sl
puts "Hello, world!" G
9(*F
JtsXMZz
R4P&r=?
TScript >)G[ww[
? "Hello, world!" YllZ5<}
MkjB4:"
"'@D\e}
Turing 7Z~JuTIZ
put "Hello, world!" *9xxX,QT8Q
<2L,+
q5JQx**g
UNIX-style shell fA]sPh4Uag
程序中的/bin/sh可改为您使用的shell 023uAaI^3r
~d1=_p:~T
#!/bin/sh x X[WX#'f
echo 'Hello, world!' L N.:>,
6xwjKh:9
mpCu,l+lo
GUI ]7>#YKH.
[]aw;\7}Y
Delphi %<+uJ'pj
program HelloWorld; 3$q#^UvD
uses GDe,n
Dialogs; UKV<Ye|
begin x?lRObHK
ShowMessage('Hello, World!'); WT")tjVKA
end. _|cSXZ|
TQ:5@1aT
%3"3V1
Nuva 85)C7tJ-g
<. F$jy~W_
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) &|}QdbW
.> ^#mWV
2boyBz}=S
}9W[7V?
Visual Basic Vdefgq@<
MsgBox "Hello, world!" Y`{62J8oy
'或者 ,c$tKj5ulQ
Print "Hello, world!" JZ![:$:
(*=>YE'V{
g6aqsa
Visual FoxPro /W-ges
? "Hello, world!" S[yrGX8lu
VpAwvMw
1?^
P=^8
X11 [!wJIy?,
用一个程序 iY?#R&
_&U#*g
xmessage 'Hello, world!' 9-q> W
d$x vEm
用C++和gtkmm 2 9}a$0H
h
]\A=[T^
#include <iostream> ]!P8 {xmb@
#include <gtkmm/main.h> S]|sKY
#include <gtkmm/button.h> rc<Ix
#include <gtkmm/window.h> d4ld-y
using namespace std; tKcC{
}CMGK{
class HelloWorld : public Gtk::Window ZzTkEz >
{ zh0T3U0D
public: <2%9O;bV[
HelloWorld(); F[%k;aJ
virtual ~HelloWorld(); \P9ms?((A
protected: =)c-Xz
Gtk::Button m_button; _?cum~A@
virtual void on_button_clicked(); )g^qgxnnV
}; oqysfLJ
b=\chCRJJ
HelloWorld::HelloWorld() : m_button("Hello, world!") lw}7kp4
2F
{ *` wz
set_border_width(10); O CIoY?a
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); yocFdI
add(m_button); 3(|,:"9g
m_button.show(); (3D&