“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。 5p7i9"tgn
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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》。 bhKe"#m|S
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以下是用不同语言写成的Hello World程序的几个例子: y=}o|/5"
Ada GCrsf
with Ada.Text_Io; use Ada.Text_Io; XS>( Bu
procedure Hello is rLp0)Go
begin ] `;Fc8$
Put_Line ("Hello, world!"); S;u2B_/
end Hello; wk2Ff*&
b:x~Jz#%2
Nm#[ A4
汇编语言 .sZ"|j9m
cmp@Ow"c
x86 CPU,DOS,TASM ;YrmT9Jx6
MODEL SMALL f5*hOzKG6
IDEAL LO,:k+&A+
STACK 100H 6"2IV
q3u:Tpn4%
DATASEG -{p~sRc&
HW DB 'Hello, world!$' w*7wSP
6^ ,;^
CODESEG yh+.Yn=+
MOV AX, @data %d0BQ|
MOV DS, AX \
Ju7.3.
MOV DX, OFFSET HW riSgb=7q9
MOV AH, 09H l(Uwci
INT 21H 2GRv%:rZ
MOV AX, 4C00H ._6Q "JAB
INT 21H N LSJ
D
END S3y('
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D0X!j,Kc
Z1U@xQj
x86 CPU,GNU/Linux,NASM -=2V4WU~
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). TV?MB(mN
;Enter this into "hello.asm" then type: ~Vf
A
;"nasm -f elf hello.asm" iE^=Vf;
;"ld hello.o -o hello" Bh65qHQO
;"./hello" 0\wW%3C
n"Wlfd0
section .data ;data section declaration \$xj>b;
msg db 'Hello World!',0AH 3yLJWHO%W
len equ $-msg ;string length 1P G"IaOb
?DKY;:dZF
section .text ;code section declaration SnY{|
global _start ;entry point (start of execution) !d1a9los
_start: mov edx,len ;string length 5I/lF oy7
mov ecx,msg ;string start /1b7f'
mov ebx,1 ;file handle: stdout aqv'c
j>
mov eax,4 ;sys_write bv}e[yH
int 80h ;kernel system call ~P'i
/*:
;]W@W1)$
mov ebx,0 ;return value #j)"#1IE2W
mov eax,1 ;sys_exit y N,grU(
int 80h ;kernel system call /z: mi
dQy K4T
plM:7#eA
x86 CPU,Windows,MASM32 ?$VkMu$2k
.386 KY\=D 2m
.model flat,stdcall ]#vi/6\J
option casemap:none Qw<&N$
;Include 文件定义 9A *gW j
include windows.inc -L!lJ
include user32.inc t$rla_rbY
includelib user32.lib -!
^D8^s
include kernel32.inc i ;^Ya
includelib kernel32.lib uc/W/c u,
;数据段 mp
z3o\n
.data $dG:29w
szCaption db 'A MessageBox!',0 G"h}6Za;DO
szText db 'Hello,world!',0 ;RYIc0%
;代码段 /y(0GP4A
.code /O~Np|~v
start: d{Owz&PL
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK fg4mP_
invoke ExitProcess,NULL 13+.>
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >T-4!ZvS\j
end start nlA:C>=
n}c~+0`un
uF<?y0t
AWK zE~Xxp
BEGIN { print "Hello, world!" } }_5 R9w]"
'.&Y)A6!
!s:e
BASIC ;%;||?'v
传统版BASIC(例如GWBASIC): h J0U-m
c3r`T{Kf
10 PRINT "Hello, world!" <>728;/C
20 END d</F6aM\
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或在提示符输入: ?'_6M4UKa
u1=K#5^
?"Hello, world!":END Nd&UWk^
-:E~Z_J`
现代版BASIC(例如Quick BASIC): Gr#3GvL
n2EPx(~
Print "Hello, world!" eW;3ko E
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CC
以下的语句在Quick BASIC中同样有效: ,Vw>3|C
D:/q<<|
? "Hello,world!" A+3SLB
=1@LMIi5x
tym:C7v%~
BCPL 3bYjW=_hA
GET "LIBHDR" M&/%qF15
@&Bh!_TWc
LET START () BE v?Utz~lQ
$( dvU{U@:sz
WRITES ("Hello, world!*N") b?c/J{me
$) =^i K^)
bwH[rT!n
S0QLM)
Befunge H!&_Tv[
"!dlrow olleH">v 8|)^m[c&
, Cs7ol-\)
^_@ sRA2O/yKCE
-0x Q'1I
(:HT|gKoE
Brainfuck N2"B\
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< >6HGh#0(p
+++++++++++++++.>.+++.------.--------.>+.>. o~)o/(>ox
`Z8k#z'bN
6-fv<Pn
C
S#?2E8
#include <stdio.h> .
ump?
M
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int main(void) Uq$/Q7
{ kM{8zpn
printf("Hello, world!\n"); rpK&OR/
return 0; e-`.Ht
} &UOxS W
75zU,0"j
4&sf{tI
C++ ^2nrA pF
#include <iostream> {0Y6jk>I
OyF=G^w
int main() C| ~A]wc=
{ } &B6
std::cout << "Hello, world!" << std::endl; $3G^}A"
return 0; '<BLkr# @
} {zvaZY|K"
H3<tsK=:
"!V`_ S;
C++/CLI <1l%|
int main() ou <3}g
{ mn?F;=qE
System::Console::WriteLine("Hello, world!"); N*}soMPV^.
} W~;Jsd=f
B_Q{B|eEt&
p%>sc
C# (C Sharp) Wvf>5g)?
class HelloWorldApp Fm0d0j
{ Zek@xr;]
public static void Main() hbH~Ya=+S
{ .iRKuBM/
System.Console.WriteLine("Hello, world!"); 6I
+0@,I
} S>~f.
} |6JKB'
`xLsD}32
["EXSptB
COBOL !HDb{f
IDENTIFICATION DIVISION. Wn(!6yid
PROGRAM-ID. HELLO-WORLD. s Z[[ymu8
FpRYffT 9u
ENVIRONMENT DIVISION. [! $NTt_
d^aVP
DATA DIVISION. Bdt6 w(`^
I/Vw2
PROCEDURE DIVISION. kWXLncE
DISPLAY "Hello, world!". lLTqk\8g
STOP RUN. 6e+'Y"v
7EE{*}?0E
+)sX8zb*gY
Common Lisp E{|B&6$[}
(format t "Hello world!~%") :snO*Zg
p"ytt|H
M,]|L c h
DOS批处理 QM0B6F
@echo off ZZT #V%Q=u
echo "Hello, world!" Jp=fLo 9
+lx&$mr?
bqcCA91
Eiffel eO!9;dJ
class HELLO_WORLD 5daq}hsQs
'I]XX==_
creation 0kkDlWkzo
make e2O6q05 ?Q
feature bC<W7qf]}
make is 7)lEZJK&T
local *S.U8;*Xj
io:BASIC_IO @sXv5kZ:
do _ox+5?>
!!io j7~FR{:j
io.put_string("%N Hello, world!") FH~:&;
end -- make "h sT^sy
end -- class HELLO_WORLD .e~"+Pe6b
`L'g<VK;
VzP az\e
Erlang h aAY =:
-module(hello). ]q]xU,
-export([hello_world/0]). tk"+ u_u w
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hello_world() -> io:fwrite("Hello, World!\n"). m{/7)2.
'FErk~}/4s
|6E_N5~
Forth <3;p>4gN
." Hello, world!" CR 0pZvW
j6m;03<|
V(7,N(
Fortran 4{P+p!4
WRITE(*,10) c[h~=0UtJ
10 FORMAT('Hello, World!') 4zoQe>v~
STOP #<*Vc6pC
END (> al-vZ6A
7UfNz60+~
Yuvi{ 0
HTML Un6R)MVT
<HTML> 5J5?cs-!
<HEAD> `'YX>u /
<TITLE> Hello World! </TITLE> I|@+O#
</HEAD> &hOz(825r
<BODY> 4 PK}lc
<p>Hello World!</p> qRt! kWW
</BODY> aO' #!k*R
</HTML> y4^u&0}0$
/R#zu_i
DR#" 3
HQ9+ mWp>E`l
H J@3,
*6Wiq5M>.
\[MAa:/
INTERCAL cAWn*%
PLEASE DO ,1 <- #13 &K^0PzWWof
DO ,1 SUB #1 <- #238 dOhSqx56
DO ,1 SUB #2 <- #112 m^A2
8X7
DO ,1 SUB #3 <- #112 /$~1e7W
DO ,1 SUB #4 <- #0 A}9Z%U
DO ,1 SUB #5 <- #64 ].d2C J'
DO ,1 SUB #6 <- #238 }`tSRB7
DO ,1 SUB #7 <- #26 L:i&OCU2k
DO ,1 SUB #8 <- #248 \]X.f&u
DO ,1 SUB #9 <- #168 q
W(@p`
DO ,1 SUB #10 <- #24 d ^bSV4
DO ,1 SUB #11 <- #16 u?^V4 +V
DO ,1 SUB #12 <- #158 z*.AuEK?
DO ,1 SUB #13 <- #52 k&Pt\- 9on
PLEASE READ OUT ,1 PgBEe
@.
PLEASE GIVE UP wi2`5G6|z
pBsb>wvej
~A0]vcP
Java YI0
wr1N
public class Hello RY-iFydPc
{ -U|c~Cqc
public static void main(String[] args) FYAEM!dyy
{ (J:+'u
System.out.println("Hello, world!"); 8lyIL^
} Y{Z&W9U
} _"8n&=+
^C>kmo3J
hx$]fvDevD
JSP #:)'D?,
<% b?~p/[
out.print("Hello, world!"); Liqo)m
%> ]c(FgYc
g"-j/ c
{oQs*`=l>
MIXAL 2yN!yIPR
TERM EQU 19 the MIX console device number :.:^\Q0
ORIG 1000 start address x9lA';})
START OUT MSG(TERM) output data at address MSG Yh<F-WOo2
HLT halt execution [$y(>]~.
MSG ALF "MIXAL" q"d9C)Md
ALF " HELL" osp~)icun
ALF "O WOR" yF)o_OA[uR
ALF "LD " F`D$bE;|
END START end of the program
x ;DoQx
g/GI'8EMj
x'|ty[87
Nuva g]~vZj
<..直接输出..> @-@Coy 4Tt
Hello, world! {vu\qXmMv
OUv )`K
<..或者..> u>>|ZPe
`YOYC
<. vC]X>P5 Px
// 不带换行 ne#dEUD
? "Hello, world!" )%C.IZ_s2
w2B)$u
// 或者 !LKxZ"
Y9.3`VX
// 带换行 K^WDA])
?? 'Hello, world!' teok *'b:
.> v
:pT(0N
P(T-2Ux6
6wlLE5
OCaml &xGdKH
let main () = [-(^>Y
print_endline "Hello world!";; r S@/@jKZE
rm-d),Zt
0cm34\*
Pascal \M`qaFan5^
program Hello; BJ
UG<k
begin <H-Nft>O
writeln('Hello, world!'); |/,SNE
end. @a8lF$<
6Zi{gx
+n1!xv]
Perl IO)Y0J>x
#!/usr/local/bin/perl a>j}@8[J
print "Hello, world!\n"; [8QK @5[
x%dny]O1;
qT#e
-.G
PHP m]qw8BoU`F
<?php g*$2qKm
print("Hello, world!"); ;L-=z]IR,
?> cSt)Na~C
'!m6^*m|c
n>ryS/1
Pike 6]7csOE
#!/usr/local/bin/pike 'rhgM/I
int main() HXq']+iC
{ 4 OPY
write("Hello, world!\n"); tF;0P\i
return 0; Lx,=Up.
} #xtH6\X
5dj" UxH
53t_#Yte
PL/I $zP5Hzx
Test: procedure options(main); H07\z1?.K
declare My_String char(20) varying initialize('Hello, world!'); ]N'3jf`W
put skip list(My_String);
v,<14w
end Test; YTTyMn
/1OCK=
svpQ.Q
Prolog oC5h-4~
goal H )ej]DXy
write("hello,world!"). Vk{;g
=|oi0
Gxw1P@<F:
Python sS-dHa
#!/usr/local/bin/python 01r%K@ xX\
print "Hello, world!" -8l<5g7
d{YvdN9d
8w5}9}xF
REXX NY7yk3
say "Hello, world!" ;1(^H:7T
]PS`"o,pF$
qb? <u
Ruby [xqV`(vM
#!/usr/bin/ruby %7ngAIg
print "Hello, world!\n" 4)gG_k
) H,Xkex
?+]=|hN
Scheme 3^/w`(-{@
(display "Hello, world!") B|m)V9A%-
(newline)
\0)jWCK
KQr+VQdq>
IR-n:z
sed (需要至少一行输入) ^8
VW$}
sed -ne '1s/.*/Hello, world!/p' ~P|;Y<?3
4p"' ox#
neFwxS?
Smalltalk >ai,6!
Transcript show: 'Hello, world!' Go%Z^pF3CO
P)vD?)Q
C5~~$7k0
SNOBOL -PpcFLZ|
OUTPUT = "Hello, world!" )Q1>j 2&
END BA h'H&;V
QP\9#D~
.lcp5D[(
SQL d6MWgg
create table MESSAGE (TEXT char(15)); FI^Wh7J
insert into MESSAGE (TEXT) values ('Hello, world!'); QXb2jWz
select TEXT from MESSAGE; ^*AI19w!Ys
drop table MESSAGE; JK2{9#*
JVoC2Z<
M+%Xq0`T
Tcl AqgY*"A7
#!/usr/local/bin/tcl ZVXPp-M
puts "Hello, world!" T]\1gs41
*'?ZG/ (
'J?{/O ^
TScript =F@
+~)_
? "Hello, world!" /"e@rnn
) ^En
E^)FnXe5
Turing I~6)
Gk&
put "Hello, world!" ~9]vd|
=NY;#Jjn
OJm ]gb7
UNIX-style shell #aX#gh}1
程序中的/bin/sh可改为您使用的shell <N)!s&D
8c) eaDu
#!/bin/sh RsDSsux
echo 'Hello, world!' 1WtE ]
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3S3 a|_+%
7{<v$g$
GUI Ts.2\-+3
Fn5BWV
Delphi J|I*n
program HelloWorld; {<{VJGY7T
uses wXUR9H|0(
Dialogs; $2W#'_K+
begin 6'r;6T *
ShowMessage('Hello, World!'); k<1i.rh
end. |pHlBzHj
>12jU m)
R([zlw~B5
Nuva N'y<<tTA
<. !Q"L)%)'A
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) )M<+?R$];
.> F`4W5~`
7@"X?uo%o
,6]ID1o:y
Visual Basic &vmk!wAs
MsgBox "Hello, world!" 4
Y=0>FlY0
'或者 9<3( QR
Print "Hello, world!" ,<Cl^ ^a,
)bg |l?
2Rw<0.i|
Visual FoxPro B!mHO*g
? "Hello, world!" At@0G\^
BPj?l
7KiraKb|
X11 _1?u AQ3,
用一个程序 9X*Z\-
<%.%q
xmessage 'Hello, world!' E"*E[>
tC'#dU`=qY
用C++和gtkmm 2 FV9{u[3m
Mo@{1K/9
#include <iostream> 8G)~#;x1
#include <gtkmm/main.h> 0m1V@3]7>
#include <gtkmm/button.h> h<LS`$PK;E
#include <gtkmm/window.h> 1$DcE>
using namespace std; 274j7Y'
}Nn+Ny
class HelloWorld : public Gtk::Window A'CD,R+gR
{ PW@ :fM:q
public: D)G oWt
HelloWorld(); h];H]15&
virtual ~HelloWorld(); w &YUb,{Y
protected: 1VYH:uGuAU
Gtk::Button m_button; _t,aPowX
virtual void on_button_clicked(); Q^<amM!
}; E[t[R<v,P!
4w|t|?
HelloWorld::HelloWorld() : m_button("Hello, world!") dlyGgaV*X
{ a9&[Qv5-/
set_border_width(10); '9]?jkl
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); v1i-O'
add(m_button); KiG19R$
m_button.show(); hTO5*5]0zP
} ;fV"5H)U\
2Rys:$
HelloWorld::~HelloWorld() {} e\ (X:T
kReZch}
void HelloWorld::on_button_clicked() 5f_x.~ymA
{ u0)O Fz
cout << "Hello, world!" << endl; gjD|f2*x
} ,y"vf^BE.
IA}vN3
int main (int argc, char *argv[]) VO1
{ dR i6
Gtk::Main kit(argc, argv); k"7ZA>5jk
HelloWorld helloworld; M'|[:I.V
Gtk::Main::run(helloworld); 5o{U$
} 8|=
c3Z
>&>EjK4?
Jo8fMG\P
Java
|,KsJ2hD
import java.awt.*; fb0)("_V
import java.awt.event.*;
d8 ~%(I9
$EIKi'!8
public class HelloFrame extends Frame YG?4DF
{ [+5g 9tBJ
HelloFrame(String title) G]xYQ]
{ |61ns6i!
super(title); Dg~m}La
} AD!w:jT9
public void paint(Graphics g) xIc||o$
{ F W2x
super.paint(g); :SwA) (1
java.awt.Insets ins = this.getInsets(); /J"fbBXwY
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 7uUq+dp
} z<P?p
public static void main(String args []) TXd6o=
{ rkh%[o9"/
HelloFrame fr = new HelloFrame("Hello"); F&CvqPI
M4;M.zxJv
fr.addWindowListener( $AZ=;iP-
new WindowAdapter() 'lEIwJV$
{ ,QA=)~;D
public void windowClosing(WindowEvent e) t0xE
{ K5<2jl3S
System.exit( 0 ); B`nI]_
} Vnb@5W2\
} ;X+.Ag
); f `b6E J
fr.setResizable(true); d@8:f
fr.setSize(500, 100); WcXNc`x
fr.setVisible(true); B1I{@\z0G
} l7<VH z0b
} p.MLKp-'
Zy)iNNtn
Cnc=GTRi
Java Applet [P6A$HC<
Java Applet用于HTML文件。 >pol'=
fS8Pi,!
HTML代码: ;$ ]a.9
-
/r&4< @
<HTML> |Ul 4n@+2
<HEAD> -4L27C
<TITLE>Hello World</TITLE> KB^GC5L>
</HEAD>
A;^{%S
<BODY> q+;lxR5D
5ff5M=M
HelloWorld Program says: jCx*{TO
i$:yq. DW
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> a>y e
</APPLET> uzp\<\d-t
={p<