“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。 g>-u9%aa
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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》。 :6W* ;<o
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以下是用不同语言写成的Hello World程序的几个例子: nw
Ada [\.@,Y0j
with Ada.Text_Io; use Ada.Text_Io; 2,G9~<t
procedure Hello is 6Wc.iomx8
begin hvF>Tu]^r
Put_Line ("Hello, world!"); N|asr,
end Hello; z&Lcl{<MA
DTCOhUIV
U46Z~B
汇编语言 ^zR*s |1Q
I|)U>bV
x86 CPU,DOS,TASM B q7Qbj
MODEL SMALL YbuS[l8
IDEAL ;%PI
STACK 100H Z1oUAzpj4
yQquGu
DATASEG U$j?2|v-x
HW DB 'Hello, world!$'
|:5[`
Ypw:Vp
CODESEG
@+!u{
MOV AX, @data B-[qS;PY%
MOV DS, AX cGS7s 8U
MOV DX, OFFSET HW
i>z {QE
MOV AH, 09H `h$^=84
INT 21H NSQ#\:3:S
MOV AX, 4C00H a
VIh|v
INT 21H "[\),7&03
END ^"EK:|Y4%K
zC_@wMWB
Oi\,clR^[o
x86 CPU,GNU/Linux,NASM 7kh(WtUz
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). >d$Sh`a6
;Enter this into "hello.asm" then type: n{xL1A=9
;"nasm -f elf hello.asm" H]VoXJ\*
;"ld hello.o -o hello" &9\8IR >
;"./hello" _#TbOfu
Mt%=z9OLq9
section .data ;data section declaration aYcc2N%C
msg db 'Hello World!',0AH [PL]!\NJ
len equ $-msg ;string length T#-U\C~o
/%i: (Ny
section .text ;code section declaration bSS=<G9
global _start ;entry point (start of execution) 3Jw}MFFV
_start: mov edx,len ;string length t(=Z@9)]4F
mov ecx,msg ;string start 4>t=r\"4
mov ebx,1 ;file handle: stdout ]rc=oP;
mov eax,4 ;sys_write &E`=pe/e
int 80h ;kernel system call GbJVw\5Z*
v_NL2eQ~
mov ebx,0 ;return value ^/7L(
mov eax,1 ;sys_exit Jn)DZv8?
int 80h ;kernel system call ,_RPy2N
7r wNjY#
R]"3^k*
x86 CPU,Windows,MASM32 &KVXU0F^z
.386 \Ea(f**2B
.model flat,stdcall <,I]=+A
option casemap:none M 3c
;Include 文件定义 do=s=&T
include windows.inc ($[)Tcq*~
include user32.inc -9^A,vX
includelib user32.lib *e
*V%w~75
include kernel32.inc W,ik ;P\
includelib kernel32.lib .0iHI3i^
;数据段 GKa_6X_
.data CC.ri3+.
szCaption db 'A MessageBox!',0 [?nM)4d
szText db 'Hello,world!',0 41NVF_R6J
;代码段 .yb=I6D;<3
.code X!!3>`|
start: %M
u$0~ct"
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK c,_??8
invoke ExitProcess,NULL )@a_|q@V
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >!%F$$
end start 9y( 491"o
<-F[q'!C1
NAh^2X
AWK j|2s./!Qg
BEGIN { print "Hello, world!" } G2!J`}
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p5JRG2zt
BASIC 52#Ac;Y
传统版BASIC(例如GWBASIC): iuS*Vw
{`=k$1
10 PRINT "Hello, world!" D=:O^<
20 END y]b&3&
eGj[%pk
或在提示符输入: v 5dLjy5
:C9vs
?"Hello, world!":END D%!GY1wdn
^Rc*X'Iz(!
现代版BASIC(例如Quick BASIC): l-<EG9m@
7j8Ou3
Print "Hello, world!" -&JQdrs
#MAXH7[
以下的语句在Quick BASIC中同样有效: MyaJhA6c
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? "Hello,world!" ky=h7#wdv-
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<Xl/U^B
BCPL 2i)vT)~
GET "LIBHDR" ,f^ICM
#VynADPs`o
LET START () BE L=wpZ`@
y
$( ,WtJ&S7?
WRITES ("Hello, world!*N") 3V%ts7: a
$) /a?qtRw
YuFR*W;$
3H,?ZFFGz
Befunge TeNPuY~WP
"!dlrow olleH">v -T{G8@V0I
, jzd)jJ0M
^_@ 3oBR
|(3"_
uS7kkzt-x
Brainfuck 5]~451
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ]_43U` [#
+++++++++++++++.>.+++.------.--------.>+.>. y7|
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';;X{a
QJ2D C
C r1/9BTPKdJ
#include <stdio.h> +0g L!r
^]MLEr!S
int main(void) h]pz12Yf
{ qylI/,y{
printf("Hello, world!\n"); 3@\J#mR
return 0; }56WAP}Z 4
} 0t7vg#v|
xQkvK=~$
tn}MKo
C++ L :Ldk
#include <iostream> :*Y2na)qQ
Go(Td++HS
int main() *" +u^
{ "{[\VsX|c
std::cout << "Hello, world!" << std::endl; ?OS0.
return 0; 8]Q#P
} qyP={E9A
qKTzigjj
XIn,nCY;
C++/CLI 7=gcdfW,;x
int main() !RSJb
{ @MO/LvD
System::Console::WriteLine("Hello, world!"); 2P ^x'I
} }:57Ym)7w
.FG%QF F~
?[7KN8$
C# (C Sharp) Q89fXi0Ivb
class HelloWorldApp 3~:9ZWQ/
{ sLUOs]cj
public static void Main() O L 9(~p
{ |-L7qZu%
System.Console.WriteLine("Hello, world!"); %77uc9}
} aK/fZ$Qc
} /36gf
{
&Vt]9
%OOkPda
COBOL *wx95?H0Z
IDENTIFICATION DIVISION. [iZH[7&j
PROGRAM-ID. HELLO-WORLD. 4:5M,p
zl(o/n
ENVIRONMENT DIVISION. 'q?Y5@s
-Aojk8tc
DATA DIVISION. t
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fUr%@&~l^
PROCEDURE DIVISION. #p"$%f5Q_
DISPLAY "Hello, world!". Q[?R{w6
STOP RUN. W^)mz,%x
Ft?eqDS1
c0Pj})-
Common Lisp f;AI4:#I
(format t "Hello world!~%") p6V#!5Q
m'QG{f
.+kg1=s
DOS批处理 ) J.xQ}g
@echo off ?5J>]: +ZZ
echo "Hello, world!" r)#W`A1{A
9p{n7.
U!NuiKaQ26
Eiffel AUu<@4R7
class HELLO_WORLD M\-[C!h,
F]D{[dBf
creation )[oP`Z
make 6~Dyr82"B
feature HNCu:$Wr@
make is E- [Eg
local ;|0P\3
io:BASIC_IO c@Br_-
do H6{Bx2J1*
!!io K_~kL0=4
io.put_string("%N Hello, world!") ,n[<[tkCR
end -- make NU3TXO
end -- class HELLO_WORLD L""ZI5J{F9
Cf9{lhE8
0KTO)K
Erlang cc3B}^@p=
-module(hello). TY'c'u,
-export([hello_world/0]). kDDC@A $
Rk7F;2
hello_world() -> io:fwrite("Hello, World!\n"). DxwR&S{
/#
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/]^Y\U ^
Forth #:+F
." Hello, world!" CR tjt^R$[ @
kmX9)TMVO
v/9DD% An
Fortran DH%PkGn
WRITE(*,10) q&J5(9]O|L
10 FORMAT('Hello, World!') 9:Oz-b
STOP VnVBA-#r|
END g4b#U\D@)/
5!fOc]]Ow
=\|,hg)c
HTML 7P<f(@0h$E
<HTML> q)L4*O
<HEAD> '~Cn+xf4]
<TITLE> Hello World! </TITLE> }oA>0Nw$K
</HEAD> gT0yI;g]
<BODY> `BK b60
<p>Hello World!</p> 8-NycG&)
</BODY> *U,JQ
</HTML> '(FC
\cCH/
38D5vT)n
HQ9+ @B(oq1i@
H oe] *Q
mjWU0.
x<M::")5!V
INTERCAL d\nXK#)Q
PLEASE DO ,1 <- #13 7)V"E-6h
DO ,1 SUB #1 <- #238 `DF49YP"~
DO ,1 SUB #2 <- #112 %K4M`R|2]
DO ,1 SUB #3 <- #112 j
:B/ FL
DO ,1 SUB #4 <- #0 rAfz?
DO ,1 SUB #5 <- #64 XQ9W
y
DO ,1 SUB #6 <- #238 D$K'Qk
DO ,1 SUB #7 <- #26 (87| :{
DO ,1 SUB #8 <- #248 W/bW=.d
Jd
DO ,1 SUB #9 <- #168 CTW\Dt5
DO ,1 SUB #10 <- #24 05R"/r*
DO ,1 SUB #11 <- #16 k:Y\i]#yP
DO ,1 SUB #12 <- #158 eZAMV/]jH
DO ,1 SUB #13 <- #52 }n4 T!N
PLEASE READ OUT ,1 +4_, , I
PLEASE GIVE UP M,_
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qWheoyAB
XJ\R'?j
Java x
C&IR*
public class Hello qsp.`9!
{ }W8A1-UF
public static void main(String[] args) ,{HQKHg
{ p"p~Bx
System.out.println("Hello, world!"); b(GV4%
} up'`)s'
} zp;!HP;/=
T,/rC{
@d0f +9d
JSP B223W_0"o
<% F1stRZ1ZI
out.print("Hello, world!"); GNMOHqg4
%> ]}!@'+=
G-T^1?
H%@f ^
MIXAL P-Y_$Nv0g
TERM EQU 19 the MIX console device number 7j\^h2
ORIG 1000 start address F]yB=
START OUT MSG(TERM) output data at address MSG !2KQi=Ng
HLT halt execution hz4?ku
MSG ALF "MIXAL"
Fn@`Bi?#q
ALF " HELL" sh_;98^
ALF "O WOR" Gn8sB
ALF "LD " '_G\_h}5
END START end of the program /ovVS6Ai
\s&Mz;:
H KrENk
Nuva ^7spXfSAd
<..直接输出..> <3{MS],<<
Hello, world! X>[i<ei
>N Bc-DX^
<..或者..> {1OxJn1hd
W]oD(eZ
<. oN,1ig
// 不带换行 0qJ (RB
? "Hello, world!" X!Z)V)@J8
9-c3@>v
// 或者 Y.Zd_,qy
RhE~Rwbx
// 带换行 L5FOlzn
?? 'Hello, world!' 1p.c6[9-
.> rQimQ|+
cpjwc@UMe
M4C8K{}
OCaml U9:)qvMXe
let main () = y8~OkdlN#
print_endline "Hello world!";; M(I%y0
4$KDf;m@
]#]Z]9w
Pascal Dds-;9
program Hello; wN!\$i@E:
begin q~R8<G%YK
writeln('Hello, world!'); ?@G s7'
end. Gw<D'b)!
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a
P5<9;PPbZ
Perl S/`#6
#!/usr/local/bin/perl ^w^e~0
S
print "Hello, world!\n"; h:8P9WhWF
Nbpn"*L,
Q ]CMm2L^f
PHP Hx gC*-A$/
<?php 2o?j{K
print("Hello, world!"); {6ZSf[Y6B
?> 1VgGF^cYR
|_TiF;^
I8gNg
Z
Pike S&!(h
{O
#!/usr/local/bin/pike k9x[(
#
int main() a yoC]rE
{ B r#{
write("Hello, world!\n"); VP#KoX85
return 0; D m0)%#
} @Y/&qpo$#W
`}?;Ow&2CY
iM<$
n2t
PL/I rexf#W)
Test: procedure options(main);
T>B'T3or
declare My_String char(20) varying initialize('Hello, world!'); unFRfec{
put skip list(My_String); }%u#TwZ
end Test; n*7^lAa2
K KB+o)*W
UDG1F_&h
Prolog ]<^2B?}
goal #'Y lO-C
write("hello,world!"). |HmY`w6*z
"UTW(~D'
,H{9`a#+:
Python ?/o 8f7Z
#!/usr/local/bin/python Lu}jk
W*
print "Hello, world!" !.6n=r8d
;?/5Mr
o.ZR5 `.
REXX o`iA&
say "Hello, world!" =%m{|HQ`
f'=u`*(b7
BY~Tc5
Ruby [Qnf]n\FJ
#!/usr/bin/ruby 3mHzOs\jU
print "Hello, world!\n" s\;/U|P_
VM%g QOo<
INA3^p'w
Scheme BH0m[9nU;
(display "Hello, world!") $Lp [i
<O]
(newline) 4Fft[S(
to?! qxn
a?-&O$UHf\
sed (需要至少一行输入) WML--<dU
sed -ne '1s/.*/Hello, world!/p' u#Ig!7iUu
p^8a<e?f~f
M8~3 0L
Smalltalk <MbhBIejr
Transcript show: 'Hello, world!' "Wj{+|f
!5 }}mf
hVF^"$
SNOBOL n<C]
6H
OUTPUT = "Hello, world!" ["D!IqI:
END (,h2qP-;ud
(I$%6JO:
VO0:4{-
SQL %D4)Bqr
create table MESSAGE (TEXT char(15)); nB`|VYmOP1
insert into MESSAGE (TEXT) values ('Hello, world!'); X]=eC6M}:V
select TEXT from MESSAGE; vclc%ws
drop table MESSAGE; 8{ZTHY-
yP{ 52%|+
#4Z e2T|
Tcl _RaE:)
#!/usr/local/bin/tcl c -k3<|H`
puts "Hello, world!" y^C5_w(^jZ
~]-n%J$q
hP)Zm%@0f
TScript _bCAZa&&
? "Hello, world!" 9295:Y| w1
4 eLZ
X<,QSTP
Turing 2p&$bft
put "Hello, world!" \8xSfe
Fl_}Auj{&(
;<M}ZL@m
UNIX-style shell ],weqs
程序中的/bin/sh可改为您使用的shell ." xP{
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#!/bin/sh m#UQ,EM
echo 'Hello, world!' )jOa!E"
4;AF\De
?+Gt?-! 5q
GUI VNTbjn]
m+!.H\
Delphi j1;[6XG
program HelloWorld; _[R(9KyF0f
uses AJ}FHym_ZQ
Dialogs; )7 & -DI1
begin |N`0G.#
ShowMessage('Hello, World!'); b,^ "-r
end. 1L*[!QT4
YIRe__7-NU
&ww-t..
Nuva )Dz]Pv]H'
<. !An?<Sv$
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) [P+kQBLpL
.> ~6;I"0b5
h}a}HabA
&)OI!^ (
Visual Basic G[ U5R?/
MsgBox "Hello, world!" `o{ Z;-OF
'或者 d` ttWWPw
Print "Hello, world!" #//xOL3J
7dY_b
C~T,[U
Visual FoxPro )xy>:2!#Y
? "Hello, world!" b,+Sa\j)(
TBt5Nqks-
cjL)M=pIS
X11 R%szN.cI
用一个程序 DujVV(+I
yzK<yvN
xmessage 'Hello, world!' `/[5/%
RyK~"CWT
用C++和gtkmm 2 Led\S;pl
J>v[5FX+
#include <iostream>
skl3/!
#include <gtkmm/main.h> Z
01A~_
#include <gtkmm/button.h> )IcSdS0@M
#include <gtkmm/window.h> ?7Cm+J
using namespace std; Ibz9juY
_$R=F/88
class HelloWorld : public Gtk::Window B6dU6"
{ ?7NSp2aq2A
public:
`vH|P
HelloWorld(); / ]8e[t>!f
virtual ~HelloWorld(); _]*YSeh=
protected: fJr
EDj4(
Gtk::Button m_button; +\Vw:~e
virtual void on_button_clicked(); k{mBG9[z
}; `:=1*7)?
48wt
HelloWorld::HelloWorld() : m_button("Hello, world!") z@VL?A(3
{ $\ZWQct
set_border_width(10); #8h7C8]&
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); !U%
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add(m_button);
M ]047W
m_button.show(); ;-`NT`
#2
} KyrZ&E.`
= vqJ0 !
HelloWorld::~HelloWorld() {} .T7CMkYt
hk=[v7
void HelloWorld::on_button_clicked() L'Cd`.yVO
{ F?'
cout << "Hello, world!" << endl; {v0r'+`
} LC]0c)v#
xwo*kFg
int main (int argc, char *argv[]) 6MM\nIU)/
{ 1av#u:jy~>
Gtk::Main kit(argc, argv); 0]5XTc3r
HelloWorld helloworld; L E\rc A
Gtk::Main::run(helloworld); C5^WJx[
} rSv,;v
60|PVsmDm
Jw5@#j
Java >N al\
import java.awt.*; W#U|;@"
import java.awt.event.*; FiMM-c|
|a03SZx
public class HelloFrame extends Frame 0&