“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。 GmEJ,%A
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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》。 ^r?sgJ
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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_G`R
Ada 9<0$mE^:
with Ada.Text_Io; use Ada.Text_Io; l#5k8+s
procedure Hello is \I o?ul}za
begin :b3lJ-dB
Put_Line ("Hello, world!"); uq#h\p|
end Hello; bCac.x#jo
>sl1 cC
=+sIX3
汇编语言 5k7(!
+%cr?g
x86 CPU,DOS,TASM 8d*<Aki?;
MODEL SMALL KWuj_.;
IDEAL *M\i4FO8
STACK 100H 88+\mX;A#
4-?`#
DATASEG =[tls^
HW DB 'Hello, world!$' QWQ6j#`
J1v0
\
CODESEG lLwQridFXh
MOV AX, @data \`iW__
MOV DS, AX 4|o{_g[
MOV DX, OFFSET HW aR(Z~z;C
MOV AH, 09H 7`'fUhB!
INT 21H ]mLTF',5
MOV AX, 4C00H 5 xzB1n8
INT 21H }FdcbNsP
END 6w`}+3
LZAj4|~,m
vM>`CZ
x86 CPU,GNU/Linux,NASM ]&tr\-3
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). xYkgNXGs5
;Enter this into "hello.asm" then type: @x>$_:]
;"nasm -f elf hello.asm" v%PWr5]
;"ld hello.o -o hello" ^zluO
;"./hello" fKK-c9F
Xe^=(| M
section .data ;data section declaration x2IU PM
msg db 'Hello World!',0AH JI#Enh!Lv
len equ $-msg ;string length L|xen*O
a^)4q\E
section .text ;code section declaration :tS>D5dz(
global _start ;entry point (start of execution) zZjLt1
_start: mov edx,len ;string length u g$\&rM>
mov ecx,msg ;string start :$Di.|l@7
mov ebx,1 ;file handle: stdout ,I:m*.q
mov eax,4 ;sys_write sZP3xh[B
int 80h ;kernel system call V;+$/>J`vB
Gy Xs{*
mov ebx,0 ;return value Tk|;5^#H
mov eax,1 ;sys_exit !Pjg&19
int 80h ;kernel system call -D^y)
EvardUB)
~b<4>"7y.
x86 CPU,Windows,MASM32 Y`_X@Q
.386 {*r$m>HpM
.model flat,stdcall <}'B-k9
option casemap:none ~ FrkLP
;Include 文件定义 zxmI/]3+/
include windows.inc Ch&]<#E>`
include user32.inc XTXo xZ#w
includelib user32.lib 3ijI2Zy
include kernel32.inc `h{mj|~
includelib kernel32.lib bqwW9D(
;数据段 Mh/>qyS*2
.data W%<]_u[-}
szCaption db 'A MessageBox!',0 0-; P&m!!
szText db 'Hello,world!',0 ~ z&A
;代码段 byxehJ6[V
.code 98BBsjkd
start: #yRA.;
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK
G?1V~6
invoke ExitProcess,NULL ``)1`wx$
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> yt#;3
end start sTstc+w
V+<AG*[
nX aX=
AWK (<~R[sT|
BEGIN { print "Hello, world!" } }Z$G=;3#
v2X0Px_
F3|pS:
BASIC _*B~ESC0
传统版BASIC(例如GWBASIC): ysn[-l#
fB"gM2'
10 PRINT "Hello, world!" nKJ7K8)
20 END kITmo"$K
iwx0V
或在提示符输入: F,2#;t4
Pisr&"A
?"Hello, world!":END J9t? ]9.,:
dX}dO)%m{
现代版BASIC(例如Quick BASIC): YhK/pt43C
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Print "Hello, world!" %1+~(1P
N}<U[nh'
以下的语句在Quick BASIC中同样有效: .wOLi Ms
KK3xz*W0
? "Hello,world!" Wk#-LkI
t>u9NZt G
~vZzKRVS
BCPL ij5=f0^4.
GET "LIBHDR" v7u}nx
ew ,ed U
LET START () BE mqc Z3lsv
$( 3Ty{8oUs^
WRITES ("Hello, world!*N")
]p.f*]
$) NGZ>:
T.N7`
1gK3=Ys
Befunge L"<Eov6
"!dlrow olleH">v A;HKR4p;8
, h#;K9#x6
^_@ Jl9TMu!1]
_rh.z_a7w
\I{A33i2w
Brainfuck rX
d2[pp
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Y]0y
-H
+++++++++++++++.>.+++.------.--------.>+.>. a8P6-)W
CP#MNNvgrw
g' U^fN
C T>o# *{qn
#include <stdio.h> W/X;|m`
u)]sJ1p
int main(void) 5Cka."bQ
{ &b8D'XQu
printf("Hello, world!\n"); +ANIm^@
return 0; S.>9tV2Ca
} +-137!x\q
A0sW 9P6F
B y8Tw;aL
C++ y9 '3vZ
#include <iostream> +~]g&Mf6o
/k Vc7LC
int main() zXPj7K*
{ w'>v@`y
std::cout << "Hello, world!" << std::endl; 5E(P,!-.
return 0; n\DT0E]
} 1k({(\>qq
lY?d*qED
/Loe y
C++/CLI NistW+{<
int main() FeRuZww._J
{ 64s;6=
System::Console::WriteLine("Hello, world!"); /aEQ3x
} bx6}zkf&
tC~itU=V
0R%58,R
C# (C Sharp) t!C-G+It
class HelloWorldApp P6'I:/V
{ [=!MS?-G
public static void Main() X;RI7{fW%X
{ m<ruFxY
System.Console.WriteLine("Hello, world!"); mmK_xu~f28
} U<gw<[>f
} <a3XV
)$g/PQ
N^at{I6C
COBOL @SB+u+mOS
IDENTIFICATION DIVISION. r\`m[Q
PROGRAM-ID. HELLO-WORLD. A+8b]t_k
K.zs;^
ENVIRONMENT DIVISION. ,Ou)F;r
KgSxF#
DATA DIVISION. j(2T,WM
:]jtV~E\
PROCEDURE DIVISION. _s,svQ8#
DISPLAY "Hello, world!". 06;{2&ju<
STOP RUN. (k45k/PAP
-6>rR{z
wUndNE
Common Lisp YT8`Vz$+
(format t "Hello world!~%") 8A_(]Q
{`55nwd
xn[di-LF
DOS批处理 \}W.RQ^3
@echo off 2uEu,YC
echo "Hello, world!" {}e IpK,+
WKML#U]5T
-]%@,L^@
Eiffel LOzKpvGl
class HELLO_WORLD v_h{_b8
?sE21m?b-
creation }hxYsI"d
make `-m7CT sA
feature ,//=yW
make is =G6@:h=
local #n
r1- sf|
io:BASIC_IO "Xc=<rX
do Bw[V K7
!!io @RW%EXKt
io.put_string("%N Hello, world!") 5 <poN)"
end -- make !vw0Y,F&
end -- class HELLO_WORLD hI0l2OE
`Fr$q1qae{
`!N?#N:b)
Erlang ;GSj}Nq
-module(hello). Sa5 y7
-export([hello_world/0]). s5e}X:
i9tM]/SP
hello_world() -> io:fwrite("Hello, World!\n"). Gx($q;8
Sq%R
e+U o-CO
Forth Vo()J4L
." Hello, world!" CR P])O\<)J
IZLX[y
O8%/Id
Fortran r9[J3t*({~
WRITE(*,10) T8LwDqio
10 FORMAT('Hello, World!') F_`Gs8-VH
STOP iDr0_y*t
END IT|CfQ [D
10(N|2'q
uQCS%|8C
HTML ]LjW,b"
<HTML> A:(uK>5{Kk
<HEAD> *v&RGY[>
<TITLE> Hello World! </TITLE> 62) F
</HEAD> v80e]M!
<BODY> he@swE&
<p>Hello World!</p> =1C9lKm
</BODY> %VCHM GP=
</HTML> t*#T~3p
J5wq}<8
Zh*I0m
HQ9+ qM'5cxe
H ifUgj8i_
gC_U7a w
PQ" Dl=,
INTERCAL h.NA$E?7
PLEASE DO ,1 <- #13 Sj\8$QIXC
DO ,1 SUB #1 <- #238 rE
8-MB
DO ,1 SUB #2 <- #112 Rd/!CJ@g
DO ,1 SUB #3 <- #112 lCXo+|$?s
DO ,1 SUB #4 <- #0
Ox RzKT
DO ,1 SUB #5 <- #64 2\n6XAQ*
DO ,1 SUB #6 <- #238 FsjblB3?E
DO ,1 SUB #7 <- #26 &>SE9w/?o
DO ,1 SUB #8 <- #248 r.[k D"l
DO ,1 SUB #9 <- #168 .vg;K@{
DO ,1 SUB #10 <- #24 oVdmgmT.Y
DO ,1 SUB #11 <- #16 udMq>s;
DO ,1 SUB #12 <- #158 ~p&sd)
DO ,1 SUB #13 <- #52 ~9=g" v
PLEASE READ OUT ,1 V.qB3V$
PLEASE GIVE UP %y'#@%kO:S
%0 S0"t
v2NzPzzyb
Java 8I%1
`V
public class Hello ynhH5P|6,
{ ? T9-FGW
public static void main(String[] args) p)`JVq,H/B
{ @xo9'M<l
System.out.println("Hello, world!"); <?+\\Z!7
} Ad(j&P
} idHBz*3~ps
YRFM1?*
r?{tBju^
JSP 6B=J*8
Hs
<% sHNt>5p
out.print("Hello, world!"); 9"[#\TW9Vb
%> hq|/XBd||
I?gbu@o
HjrCX>v
MIXAL lq74Fz&(
TERM EQU 19 the MIX console device number K=V)"v5o3
ORIG 1000 start address )9s[-W,e
START OUT MSG(TERM) output data at address MSG CAk.2C/
HLT halt execution IIzdCa{l
MSG ALF "MIXAL" n=`UhC
ALF " HELL" z ,vjY$t:/
ALF "O WOR" +]G;_/[2
ALF "LD " @>?&Mw\c
END START end of the program :^K|u^_>P
s<:J(gD
k7? (IU
Nuva .M04n\
<..直接输出..> >Tw|SK+3
Hello, world! |X>:"?4t
LaRY#9
<..或者..> 8D-g%Aj-
=73wngw
<. WK-WA$7\
// 不带换行 6H@=O1W
? "Hello, world!" ]O^!P,l)"
Hc71 .rqS
// 或者 krgsmDi7
_|3n h;-m
// 带换行 N
G4wtDa
?? 'Hello, world!' h<[ o;E
.> a!;?!f-i
?g1%-F+
I%|W
O*x
OCaml \\_Qv
let main () = $%LjIeVA5
print_endline "Hello world!";; p\Jz<dkN1
J*.qiUAgW
mhL,:UE
Pascal )tB mSVprl
program Hello; LbnR=B!
begin ;L|%H/SH
writeln('Hello, world!'); e(sQgtM6
end. oE}1D?3Sp
.- {B
ACs?m\$Q
Perl dAR):ZKq?
#!/usr/local/bin/perl 2s~X
print "Hello, world!\n"; ? r^+-
7tJPjp4l
^J?I-LG
PHP !9B)/Xi
<?php `zF=h#i
print("Hello, world!"); k \|Hd"T
?> qm2
dF"Sz4DY#
V1M oW;&
Pike k/Z}nz
#!/usr/local/bin/pike g9g^zd,
int main() V#zDYrp
{ CtS*"c,j
write("Hello, world!\n"); nI&Tr_"tm
return 0; 72.ZE%Ue
} WI' ;e4
Y6f0 ?lB
):1NeJOFF
PL/I Ga"t4[=I
Test: procedure options(main); p3&w/K{L6w
declare My_String char(20) varying initialize('Hello, world!'); \)pk/
put skip list(My_String); 1s .Ose
end Test; :beBiO
mJl|dk_c
1-4W4"#
Prolog 5P [b/.n
goal Ry8@U9B6,t
write("hello,world!"). l:%4@t`
|\J8:b>}
w`q):yXX
Python wjDLsf,
#!/usr/local/bin/python d
H]'&&M
print "Hello, world!" m
z) O
'Tj9btM*cL
&^92z:?
REXX ZBi|BD
say "Hello, world!" %[b~4,c1
crG+BFi
Vv#|%^0
Ruby 4fgA3%
#!/usr/bin/ruby '7 SFa]tH
print "Hello, world!\n" a~jM^b;VN
t[|^[%i
q3n(Z
Scheme )Z2HzjE
(display "Hello, world!") X H,1\J-S
(newline) LNPwb1)
u?r=;:N|y
y
~7]9?T
sed (需要至少一行输入) G$( B26
sed -ne '1s/.*/Hello, world!/p' Ou>L|#=!
0P_qtS
g4^=Q'j-
Smalltalk 4*&_h g)h
Transcript show: 'Hello, world!' Yjx*hv&?
g)nsP
FMhSHa/B
SNOBOL |]y]K%
OUTPUT = "Hello, world!" v!JQ;OX
END H:TRJ.!w2
ju~js
v2][gn+58
SQL 3=SIIMp7=
create table MESSAGE (TEXT char(15)); bxLeQWr6
insert into MESSAGE (TEXT) values ('Hello, world!'); d2Pqi* K
select TEXT from MESSAGE; (
E;!.=%
drop table MESSAGE; ~H`~&?
3Uw}!>`%
{a;my"ly
Tcl JI##l:,7r
#!/usr/local/bin/tcl R-5EztmLae
puts "Hello, world!" 9Kf# jZ
{]ie|>'=C
J=Q?_$xb}
TScript u2}zRC=
? "Hello, world!" &]~Vft
l
qn=~4rg]R
I*hCIy#;
Turing g:V8"'
put "Hello, world!" ]rU$0)VN
[Vzp D 4
FtHR.S=u
UNIX-style shell IY jt*p5
程序中的/bin/sh可改为您使用的shell QU{|S.\
b5NPG N
#!/bin/sh >LS*G
qjq
echo 'Hello, world!' IWc?E
tj<a , l
[Tmpj9!q
GUI `_M*2(rt
tgz
Delphi <Wqk5mR
program HelloWorld; bLSXQStB
uses N{rC#A3
Dialogs; 8Evon&G59
begin 4K{<R!2I
ShowMessage('Hello, World!'); ':Avh|q3N
end. 6'E3Q=}d
Teo&V
(^,4{;YQ5
Nuva u6tD5Y
<. !5FZxmUup
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) y{{7)G
.> Tp-<!^o4
KPW2e2{4@
j6@5"wx
Visual Basic A 9\]y%!
MsgBox "Hello, world!" &"G4yM
'或者 |1M+FBT$w
Print "Hello, world!" vMT:j
"'i" @CR
H! IL5@@K
Visual FoxPro (4ueO~jb$
? "Hello, world!" yhwwF
n\
>d1gVBhk
VEUdw(-?s
X11 4Og&w]
用一个程序 DSb/+8KT
'Ll,HgU;
xmessage 'Hello, world!' 6h8fzqRzc
L&*/s&>b
用C++和gtkmm 2 sA!,)'6
>M1m(u84#
#include <iostream> kta`[%KmIZ
#include <gtkmm/main.h> 0C3s
#include <gtkmm/button.h> B-EVo&.
#include <gtkmm/window.h> b d!|/Lk
using namespace std; 0qND 2_
pyvZ[R9
class HelloWorld : public Gtk::Window /1s|FI$-L
{ 4^|;a0Qy]
public: ~D[5AXV`^
HelloWorld(); ? dD<KCbP,
virtual ~HelloWorld(); 5yC$G{yV
protected: HZ>8@AVa\
Gtk::Button m_button; WrzyBG_
virtual void on_button_clicked(); i]sz*\P~
}; =[X..<bW9:
Yr7%C
HelloWorld::HelloWorld() : m_button("Hello, world!") iP nu *29
{ EUxkYl
set_border_width(10); 4O~E4" ]
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); )}{V#,xz@
add(m_button); l,(Mm,3
m_button.show(); e~Hx+Qp.G
} '1o1=iJN@$
,sU#{.(
HelloWorld::~HelloWorld() {} ">?ocJ\9
?z
"fp$
void HelloWorld::on_button_clicked() Ws_RS%
{ qJ\tc\
cout << "Hello, world!" << endl; g(9\r
} kB`t_`7f
Zjo8/
int main (int argc, char *argv[]) u2p5*gzZ
{ ~[E@P1
Gtk::Main kit(argc, argv); 2d%j6D
HelloWorld helloworld; IIn0w2:i
Gtk::Main::run(helloworld); 1O<Gg<<,e
} f{]eb1
Km)5;BQxg
$m$tfa-
Java _3G;-iNX;
import java.awt.*; fa~u<