“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。 1(gs({
i)?7+<X
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》。 $D1ha CL
LH5Z@*0#
以下是用不同语言写成的Hello World程序的几个例子: {Sf[<I
Ada 8@t8P5(vL
with Ada.Text_Io; use Ada.Text_Io; s*k)h,\
procedure Hello is --WQr]U/
begin p?i.<Z
Put_Line ("Hello, world!"); wXKtQ#o}
end Hello; xU.1GI%UPu
6Ijt2c'A}
Wef%f]u
汇编语言 B&]`OO>O
G&ck98
x86 CPU,DOS,TASM yp#!$+a}
MODEL SMALL L,}'ST
IDEAL $-}&RW9
STACK 100H 'X;cgAq8(
h[W`P%xZ
DATASEG jE*{^+n
HW DB 'Hello, world!$' h p]J>i.
'^UHY[mX8
CODESEG wZ(1\
M(
MOV AX, @data XQo\27Fo
MOV DS, AX `HX:U3/
MOV DX, OFFSET HW i#'K7XM2
MOV AH, 09H /j~~S'sw
INT 21H Tqt-zX|>
MOV AX, 4C00H K!6T8^JH
INT 21H yaR>?[h
END $
VT)
M+ +Dk7B
zjmoIE
x86 CPU,GNU/Linux,NASM
7kLurv
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 8 0tA5AP
;Enter this into "hello.asm" then type: wW%b~JX
;"nasm -f elf hello.asm" p*Z<DEh#
;"ld hello.o -o hello" Z[#8F&QV!m
;"./hello" t\M6 d6
H8eEBMGo
section .data ;data section declaration V'kBF2}
msg db 'Hello World!',0AH ]64Pk9z=
len equ $-msg ;string length ]3 "0#Y
|/Vq{gxp+
section .text ;code section declaration Y2L{oQ.C2
global _start ;entry point (start of execution) ^T&{ORWz
_start: mov edx,len ;string length HxO+JI`'3
mov ecx,msg ;string start *$A`+D9
mov ebx,1 ;file handle: stdout tj;47UtH
mov eax,4 ;sys_write sl$6Zv-l%0
int 80h ;kernel system call v?He]e'
WSozDNF!'f
mov ebx,0 ;return value QBa+xI_
J
mov eax,1 ;sys_exit W>TG?hH
int 80h ;kernel system call (-S^L'v62v
kXL0
\|>%/P
x86 CPU,Windows,MASM32 fM.#FT??
.386 ep8UWxB5
.model flat,stdcall KH2]:&6:Q
option casemap:none {iyJHY
;Include 文件定义 #x.v)S
include windows.inc !$NK7-
include user32.inc 8=D,`wog
includelib user32.lib Y2VfJ}%Q
include kernel32.inc ?b7ttlX{
includelib kernel32.lib >,,`7%Rv
;数据段 V?OTP&+J%
.data Kb]}p
szCaption db 'A MessageBox!',0 ICz:>4M-dn
szText db 'Hello,world!',0 T`^Jws{;7
;代码段 .c>6}:ye
.code ViW2q"4=
start: =R:O`qdC4e
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK P<>NV4
invoke ExitProcess,NULL 6D]fDeH\
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> _p"u~j~%-
end start zHKP$k8
)&E]
i=/hLE8T*
AWK RR=WD -l
BEGIN { print "Hello, world!" } aEzf*a|fSV
B.=n U
a;bmlV04
BASIC >&\.{ aj
传统版BASIC(例如GWBASIC): .<vXj QE
xq.kH| bH
10 PRINT "Hello, world!" V0D&bN*
20 END `}`Q qv
'__>M>[
或在提示符输入: jv v=
A3.I|/
?"Hello, world!":END 7:g_:}m
Syseiw
现代版BASIC(例如Quick BASIC): bp/l~h.7W
&KBDrJEX
Print "Hello, world!" /&\V6=jA1
&*o4~6pQ#
以下的语句在Quick BASIC中同样有效: V5-!w0{
Ae=JG8Ht~
? "Hello,world!" <V)z{uK
=p5]r:9W
f?ycZ
BCPL Z^Um\f
GET "LIBHDR" P0; y
sMAj?]hI$
LET START () BE $@kOMT
$( 4pMp@b
WRITES ("Hello, world!*N") O*/%zr
$) wZ0bD&B
#/Ob_~-?j
g?|Z/eVJ
Befunge ,d*1|oUw
"!dlrow olleH">v (;=|2N>7
, ,<!*@xy7v
^_@ 8.jf6
FO(QsR=\s
]%-U~avph
Brainfuck Y=|20Y\K
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< MCTJ^ g"D
+++++++++++++++.>.+++.------.--------.>+.>. G6{'|CV
117lhx].'
%m/lPL
C $bKXP(
#include <stdio.h> &c"!Y)%G
\>*.+?97
int main(void) "oiN8#Hf
{ &n8Ja@Y]
printf("Hello, world!\n");
wT19m
return 0; *w.":\P]
} ceJ#>Rj
Jlb{1B$7
I6;6x
C++ ID`C
#include <iostream> _:NQF7X#ug
aaf}AIL.
int main() I+twI&GS
{ N;YFr
std::cout << "Hello, world!" << std::endl; CV^%'HIs?+
return 0; 4x-,l1NMR
} o:cTc:l)
3QZm
*.
/"
p),*4@2<
C++/CLI Q5dqn"?
int main() li?@BHEf
{ P 0+@,kM
System::Console::WriteLine("Hello, world!"); T#!% Uzz
} Z2g<"M
Q1|6;4L
{E(2.'d
C# (C Sharp) G na%|tUz|
class HelloWorldApp \kUQe-:he
{ Kv1~,j6
public static void Main() "1a!]45 +
{ 1}c/l<d
System.Console.WriteLine("Hello, world!"); QPLWRZu@
} PN9vg9'
} aj|PyX3P:
F-o?tU
f^QC4hf0
COBOL ECM#J28D
IDENTIFICATION DIVISION. MUZ]*n&0
PROGRAM-ID. HELLO-WORLD. V D7^wd9
1Zp/EYWa{
ENVIRONMENT DIVISION. oI`Mn3N
44~ReN}`
DATA DIVISION. XW8@c2jN\7
`{K-eHlrM9
PROCEDURE DIVISION. 0e#PN@
DISPLAY "Hello, world!". L.;x=w
STOP RUN. iJ*Wsp
" v
wLj:
p`7d9MV^
Common Lisp }yrs6pQ
(format t "Hello world!~%") i83Jy w,f
]Z\ W%'q+
Rvf{u8W
DOS批处理 C^'r>0
@echo off &,PA+#
echo "Hello, world!" S/pU|zV[
yp=sL' E
^J^~5q8
Eiffel @V^.eVM\R
class HELLO_WORLD tFn[U#'
Ufi#y<dP
creation kzUj)
make 6=JJ!`"<2
feature qA!4\v={
make is p}!)4EI=
local `g(#~0R
io:BASIC_IO af6<w.i
do (ESFR0
!!io O{byMV{Ou
io.put_string("%N Hello, world!") yRyRH%p)
end -- make >a2[P"
end -- class HELLO_WORLD GFbn>dY
#2Q%sE?
RYC%;h
Erlang xZ2 1iQeN
-module(hello). hB\BFVUSn/
-export([hello_world/0]). AZNo%!)o
3kGg;z6
hello_world() -> io:fwrite("Hello, World!\n"). BSSehe*
(?XIhpd
U$a)lcJd
Forth f]Aa$\@b
." Hello, world!" CR dXY}B=C
k"BM1-f
Edh9=sxL
Fortran $ <[r3
WRITE(*,10) ]+qd|}^
10 FORMAT('Hello, World!') :|I"Em3R
STOP x3Fn'+
END L=!h`k
at*DYZBjDB
&];W#9"Z
HTML qB$QC
<HTML> 5c%Fb:BW=
<HEAD> !.@:t`w
<TITLE> Hello World! </TITLE> }Sh@.3*
</HEAD> @{<^rLt
<BODY>
TK>~)hc}
<p>Hello World!</p> bccf4EyQ
Y
</BODY> 8h}1t4k
</HTML> yswf2F
98zJ?NaD&
Gh{9nM_\"
HQ9+ HPO:aGU
H eeBw\f0
V%M@zd?u.
7Fa1utVI
INTERCAL !,7)ZW?*8
PLEASE DO ,1 <- #13 cZ.p
DO ,1 SUB #1 <- #238 }.=wQ_
DO ,1 SUB #2 <- #112 (h@~0S
DO ,1 SUB #3 <- #112 h:z$uG
DO ,1 SUB #4 <- #0 NZ^hp\q
DO ,1 SUB #5 <- #64 K7q R
DO ,1 SUB #6 <- #238 9I1`* 0A
DO ,1 SUB #7 <- #26 yWH!v]S
DO ,1 SUB #8 <- #248 2'ws@U}lR
DO ,1 SUB #9 <- #168 +f^|Yi
DO ,1 SUB #10 <- #24 Qq.Ja%Zq
DO ,1 SUB #11 <- #16 _w5c-\-PUM
DO ,1 SUB #12 <- #158 9I1i(0q
DO ,1 SUB #13 <- #52 u~N'UD1x
PLEASE READ OUT ,1 2 XjH1
PLEASE GIVE UP `[_p,,}Ir
O `>u70
ub4(g~E
Java 8*]dAft
public class Hello Ob|tA
{ VW] ,R1q
public static void main(String[] args) Ivq|-LDNc
{ r8_MIGM'
System.out.println("Hello, world!"); A;;OGJ,!\
} *>lXCx
} r,GgMk
BL\H@D
$cO-+Mr-~
JSP }%,LV]rGEZ
<% #\LYo{op/.
out.print("Hello, world!"); - l0X]&Ex
%> `P*PCiZos
]vCs9* |B
7 z+Ngt' !
MIXAL ~y :?w(GD
TERM EQU 19 the MIX console device number $h1pL>^J
ORIG 1000 start address uHt@;$9A
START OUT MSG(TERM) output data at address MSG =A/$[POr
HLT halt execution V:8{MO(C\
MSG ALF "MIXAL" 2
3A)^j
ALF " HELL" AT"!Ys|
ALF "O WOR" ~/Kqkhq+c
ALF "LD " B!1L W4^
END START end of the program Ec!R3+
Rdy-6
#4^D'r>pJ
Nuva Gwfi
<..直接输出..> 0&6(y*
#Z
Hello, world! 8-Z|$F"
9+frxD&pO
<..或者..> q{Gf@
kNUNh[
<. t&(\A,ch%
// 不带换行 :h<QM$P<
? "Hello, world!" '# J/e0o@
FzQ6UO~'
// 或者 ~" U^N:I"
_I#a`G
// 带换行 @Yzb6@g"
?? 'Hello, world!' !4fT<V(
.> !;&{Q^}
.v#Tj|w^
@@+BPLl
OCaml 6w$pL(
let main () = Wg=4`&F^
print_endline "Hello world!";; bqm%@*fZo
Q+^ "v]V`d
MVe4[<
Pascal 95BRZ!ts
program Hello; d2<+Pp
begin JA6#qlylL
writeln('Hello, world!'); rPoq~p[Y
end. uBxs`'C
Zl=IZ?F
N/eFwv.Er
Perl Q`(h
#!/usr/local/bin/perl r>7Dg~)V
print "Hello, world!\n"; 2g_2$)2
eRvnN>L
](sT,'
PHP P#ot$@1v
<?php ?89_2W
print("Hello, world!"); Mp`i@pm+
?> kZH IzU
Om C
F8:\/
s%S; 9T
Pike 3v:c'R0
#!/usr/local/bin/pike v
L!?4k
int main() C!S(!Z,
{ y>_*}>2 ,O
write("Hello, world!\n"); }1pG0V4
return 0; $ 2PpG|q
} ~ZZJ/Cu
#H/suQZN"g
C(lGW,!
PL/I 2sNV09id
Test: procedure options(main); zFeo8S
declare My_String char(20) varying initialize('Hello, world!'); !d3:`l<
put skip list(My_String); J+=+0{}
end Test; vHxLn/
cXG$zwS\
Fd/.\s
Prolog qr_:zXsob_
goal Y SD|#0
write("hello,world!"). cr<ty"3\
)0p7d:%mV
qB44;!(
Python D0a3%LBS/2
#!/usr/local/bin/python <c$K3
print "Hello, world!" %:hU:+G E
`u7"s'
15tT%TC
REXX .0f6b
say "Hello, world!" b Q6<R4
l&LrcM
i%eq!q
Ruby "J(W)\
#!/usr/bin/ruby /WWD;keP5
print "Hello, world!\n" {X'D07 q
:*MqYny&
;&v~tD7
Scheme +X &b
(display "Hello, world!") u#uT|a.
(newline) FqT2+VO~
WC<K(PP
-p\uW0XA
sed (需要至少一行输入) leSR2os
sed -ne '1s/.*/Hello, world!/p' ~KF>Jow?Y
b ?-VZA:
,
e6}p
Smalltalk NiCB.a
Transcript show: 'Hello, world!' ++)3*+N+
c
Oi:bC@
<5wk~|@t
SNOBOL #ovmX
OUTPUT = "Hello, world!" 'ixu+.ZL/
END m5/d=k0l
;@R=CQ6
9< $n'g
SQL 8r46Wr7Q
create table MESSAGE (TEXT char(15)); vL,:Yn@b
insert into MESSAGE (TEXT) values ('Hello, world!'); /\0rRT
select TEXT from MESSAGE; HpX ;:/I
drop table MESSAGE; &rmXz6F
~dFdO7
d}2$J1`
Tcl MY]<^/Q
#!/usr/local/bin/tcl :4V8Iz 71
puts "Hello, world!" +KzbaBK
F^/1 u
c\\'x\J7
TScript f=L&>X
? "Hello, world!" ..5rW0lr
N#Y|MfLc
/#C}1emK
Turing 7`c\~_Df_
put "Hello, world!" qZS]eQW.
$k,wA8OZ-
@> ]O6P2
UNIX-style shell B,_/'DneQK
程序中的/bin/sh可改为您使用的shell 7%Q?BH7{
1j!LK-
#!/bin/sh t6+c"=P#
echo 'Hello, world!' @|jLw($Ly
}^@Q9<P^E
K|{IX^3)V
GUI YXi'^GU@
~fV\
X*
Delphi `Pcbc\"*y
program HelloWorld; YcaomPo
uses A%[BCY_
Dialogs; aJ{-m@/5
begin $\w<.)"#
ShowMessage('Hello, World!'); FoNkISzW
end. P5K=S.g
@BfJb[A#
ILU7Yhk
Nuva ]VCVV!G_=n
<. zFba("E Z
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) :]rb} 1nLB
.> p|gzU$FWbk
+QZ}c@'r
;J>upI
Visual Basic '
a>YcOw
MsgBox "Hello, world!" 3 i;sB
'或者 AL;z's(F?
Print "Hello, world!" 'nMj<:0wlD
F4*ssx
q^ w@l
Visual FoxPro RDSkFK( D
? "Hello, world!" s?5vJ:M
Xr
sOyL
w!eY)p<
X11 V"Sa9P{y"
用一个程序 :u9OD` D
* @=ZzL
xmessage 'Hello, world!' nf0]<x2
RD|DHio%
用C++和gtkmm 2 KbSE=3
x>bGxDtu*
#include <iostream> &|K9qa~)Y
#include <gtkmm/main.h> WqJrDj~
#include <gtkmm/button.h> PrKH{nyJk
#include <gtkmm/window.h> 0 L$[w
using namespace std; fpa~~E-
OfK>-8
class HelloWorld : public Gtk::Window `x]`<kS;
{ _M)
G
public: X5tx(}j
HelloWorld(); $3=S\jyfK
virtual ~HelloWorld(); |E9'ii&?B
protected: 6Qk[TL)t
Gtk::Button m_button; 9vauCIfVC
virtual void on_button_clicked(); vB%os Qm
}; ;O7Vl5R
(6*
HelloWorld::HelloWorld() : m_button("Hello, world!") .>a
[
{ :2.<JUDM
set_border_width(10); mKBO<l{S
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); X`fb\}~R(
add(m_button); =/!RQQ|8o
m_button.show(); EO`eg]
} L++qMRk9
TI|h
HelloWorld::~HelloWorld() {} }/lyrjV
aka)#0l .
void HelloWorld::on_button_clicked() yv|`A2@9
{ +#Wwah$
cout << "Hello, world!" << endl; +BVY9U?\"
} p ,.6sk
(6Ciqf8
int main (int argc, char *argv[]) PJYUD5
{ "AP$)xM-:
Gtk::Main kit(argc, argv); GC~nr-O
HelloWorld helloworld; UqD ]@s`
Gtk::Main::run(helloworld); k1.%ZZMM
} uBl&{$<
oY+p;&H
15S&,$1&
Java |BUgsE
import java.awt.*; fy$?~Ji&
import java.awt.event.*; 2qot(Zs1i
]q~bi<E9W
public class HelloFrame extends Frame K9-9 c"cz
{ \1SC:gN*#
HelloFrame(String title) ap8q`a{j^
{ $
x:N/mMu`
super(title); wTD}c1J(
} :}yT?LIyP
public void paint(Graphics g) rvlvk"
{ C5~n^I|
super.paint(g); xKl1DIN[
java.awt.Insets ins = this.getInsets(); 2kt0Rxg
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); |;7mDhj=
} :G6aO
public static void main(String args []) `/Rqt+C
{ ZSs@9ej
HelloFrame fr = new HelloFrame("Hello"); FZ?:BX^
4=o vm[
fr.addWindowListener( qDG2rFu&[
new WindowAdapter() 7FJ4;HLQ
{ YVwpqOE.=
public void windowClosing(WindowEvent e) ^86M94k
{ 8]Tv1Wc
System.exit( 0 ); "V(P)_
} ^;'8yE/
} |1"&[ .
); swxX3GR
fr.setResizable(true); i6KB\W2
fr.setSize(500, 100); SDC'S]{ew
fr.setVisible(true); MqB@}!
} N<8\.z5:<
} 1C8xJ 6F
s~].iQJ{B
}%8ZN :
Java Applet tc0;Ake-&
Java Applet用于HTML文件。 ~1%*w*
W~0rSVD$<z
HTML代码: y $\tqQ
T{k_3[{0o
<HTML> Ga5*tWj
<HEAD> OemY'M?ZQ
<TITLE>Hello World</TITLE> |67Jw2
</HEAD> F5qA!jZ1]
<BODY> 6{buel(|e
N?ccG\t
HelloWorld Program says: dI
,A;.
aL4^ po
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> XZb=;tYo
</APPLET> tkT,M,]?9
X7huc*
</BODY> u"=]cBRWL6
</HTML> J`U]Ux/L
lG\uJxV
Java代码: qC> tni%
`P;r[j"
import java.applet.*; (s,&