“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。 Q"(*SA+-|
,SZYZ 25
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》。 m ?)k&{I
WR<,[*Mv^
以下是用不同语言写成的Hello World程序的几个例子: 3<"!h1x5
Ada &;x*uG
with Ada.Text_Io; use Ada.Text_Io; rYn)E=FG/
procedure Hello is 3_ P<0%
begin exP:lO_0n
Put_Line ("Hello, world!"); >@ : m#d
end Hello; azCod1aL{
Y<WA-dYoF
z&Kh$ $)[
汇编语言 E&_q"jJRi
bd$``(b`v
x86 CPU,DOS,TASM hN"cXz"/
MODEL SMALL x)0''}E~
IDEAL H'_ v
STACK 100H \r5L7y$9 h
+N>z|T<
DATASEG "?n;dXYSi
HW DB 'Hello, world!$' =cwdl7N&I
tupAU$h?!
CODESEG zu!#
MOV AX, @data Sdr,q9+__
MOV DS, AX 8bf~uHAr
MOV DX, OFFSET HW }Nc Ed;
MOV AH, 09H bQ`|G(g-d
INT 21H dm~Uj
MOV AX, 4C00H gK_#R]
INT 21H &VdKL2
END >V$
S\"
=#.qe=
m2j]wUh"
x86 CPU,GNU/Linux,NASM 6-t:eo9
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). %h9'kJzNk
;Enter this into "hello.asm" then type: .*~t2 :
;"nasm -f elf hello.asm" ]q":ta!f
;"ld hello.o -o hello" 3cSP1=$*
;"./hello" 6Q~(ibKx
/$=<RUE
section .data ;data section declaration DWXHx
msg db 'Hello World!',0AH E06)&tF
len equ $-msg ;string length ZQI;b0C
pkEx.R)
section .text ;code section declaration Lz:Q6
global _start ;entry point (start of execution) bqcwZ6r<
_start: mov edx,len ;string length h~-cnAMt
mov ecx,msg ;string start $X ]t}=
mov ebx,1 ;file handle: stdout k*e$_
mov eax,4 ;sys_write ,b,t^xX>)
int 80h ;kernel system call %uQOAe55
i0g/'ZP
mov ebx,0 ;return value iVZX
mov eax,1 ;sys_exit w%uM=YmuT
int 80h ;kernel system call Rl[SqmnI)@
myqQqVW
_`d=0l*8
x86 CPU,Windows,MASM32 %j.
*YvveW
.386 d8N4@3 CkL
.model flat,stdcall M|IgG:a;T
option casemap:none !I+F8p
;Include 文件定义 l*]nvd_
include windows.inc 3fq'<5 ^
include user32.inc s&D>'J
includelib user32.lib GK[[e~#u
include kernel32.inc :r+F95e
includelib kernel32.lib 5@yBUwMSj
;数据段 #|;;>YnZ
.data C3-I5q(V]
szCaption db 'A MessageBox!',0 I!Uj~jV
szText db 'Hello,world!',0 .Dt.7 G
;代码段 K(heeZUt
.code oRQ(l I>
start: IIUTo
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK KYC<*1k
invoke ExitProcess,NULL 8
_|"+Ze
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TF-a1z
end start R:Tv'I1-L
Bt(U,nFB
R7ExMJw
AWK NY\-p=3c7=
BEGIN { print "Hello, world!" } Py~N.@(:1u
?Suv.!wfLl
3im2
`n
BASIC xG|n7w*
传统版BASIC(例如GWBASIC): eGi|S'L'
k?`Q\
10 PRINT "Hello, world!" V
u1|5
20 END z.0!FUd
L,*#
或在提示符输入: != u
S
b*dEX%H8sf
?"Hello, world!":END 1SY3
~RIa),GVX
现代版BASIC(例如Quick BASIC): H;Cv]-
PLs(+>H
Print "Hello, world!" 7^n{BsN
&OP =O*B
以下的语句在Quick BASIC中同样有效: g <5G#
[A46WF>L
? "Hello,world!" U?(+ {4l
<: I]0|[
8npjQ;%4>
BCPL AS]jJc^
GET "LIBHDR" zZI7p[A[3
q a}=p
LET START () BE zJT,Hv .
$( @j+X>TD
WRITES ("Hello, world!*N") q\T}jF\t
$) CpdQ]Ai[
TTm
?PDrj/: *
Befunge Xr$hQbl5D
"!dlrow olleH">v Wm>AR? b
, jWJ/gv~ $
^_@ .p
/VRlLU
73tWeZ8rvx
g0"KCX
Brainfuck Nj|~3
*KO
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 9}Qrb@DT
+++++++++++++++.>.+++.------.--------.>+.>. @ )m9#F
ff<adl-
eVB.g@%T
C \'Ewn8Qv8
#include <stdio.h> MD=VR(P?eq
Q2K)Nl >_
int main(void) 8!VFb+
{ C;.+ kE
printf("Hello, world!\n"); J&jig?t
return 0; 0q:g
Dc6z
} u@$pOLI
:R9 DJh\
qr[+^*Ha
C++ 6v9A7g;4.
#include <iostream> +Y|HO[
nO7#m~
int main() h2#S ?
{ i=8){GX4
std::cout << "Hello, world!" << std::endl; ky98Bz%
return 0; rCFTch"
} PmT,*C`/X
Q W1d&Gb.(
Zfn390 _
C++/CLI {glRXR
int main() 0A>Fl*
{ A1nEp0%Y
System::Console::WriteLine("Hello, world!"); 9dXtugp|
} 3O!TVSo
Je~d/,^WU
kVu-,OU
C# (C Sharp) "7tEk<x
class HelloWorldApp mQ]wLPP{1
{ =\l7k<
public static void Main() o4g<[X)
{ ,"!P{c
System.Console.WriteLine("Hello, world!"); U<lCK!85[
} Cq, hzi-
} $k&}{c8P
Fl^}tC
T c{]w?V
COBOL c(<,qWH
IDENTIFICATION DIVISION. -O=a"G=
PROGRAM-ID. HELLO-WORLD. uKZe"wN;
JV#)?/a$z
ENVIRONMENT DIVISION. 'ehJr/0&g
#e:*]A'I
DATA DIVISION. _,2P4
\4.U.pKY
PROCEDURE DIVISION. @#%rTKD9F
DISPLAY "Hello, world!". kGZ_/"iuO
STOP RUN. OgTE^W@
buhn~ c
|,ZmRW^2K
Common Lisp {A2SG#}
(format t "Hello world!~%") |ei?s1)
YJ`[$0mam
+{j? +4(B
DOS批处理 Pe !eID8
@echo off RJ_ratKN*g
echo "Hello, world!" 'sL>U$(
ZN2g(
Odr@9MJ
Eiffel %8T:r S
class HELLO_WORLD F`ifHO
%&yD^q_
creation "b!QE2bRO
make O\T
feature X"W%(x`w
make is jG0{>P#+
local K'%,dn
io:BASIC_IO W.ud<OKP90
do HB4Hz0Fa
!!io h@72eav3+
io.put_string("%N Hello, world!") X?b]5?K;r
end -- make Z3G>DF:$
end -- class HELLO_WORLD SPIYB/C
@\_tS H
ih?_ fW
Erlang ~u&3Ki*x
-module(hello). ctOC.
-export([hello_world/0]). 5( lE$&
k3[
~I'
hello_world() -> io:fwrite("Hello, World!\n"). yg "u^*r&
&G@*/2A
<> f
Forth M"K$81
." Hello, world!" CR y'Xg"
x!q$`zF\\
`-4c}T
Fortran 0z."6r
WRITE(*,10) iLy}G7h
10 FORMAT('Hello, World!') Q/iaxY#
STOP r]km1SrS
END A$W,#`E
SPL72+S`,
Tn/
3`j
{
HTML T"t3e=xA
<HTML> ~,Q+E8
<HEAD> WB5[!
<TITLE> Hello World! </TITLE> !$St=!
</HEAD> r M'snW)
<BODY> #:z.Br`
<p>Hello World!</p> oj@B'j
</BODY> hH{&k>
</HTML> (I, PC*:
gOO\` #
DI**fywu[3
HQ9+ R{@WlkG}
H E<'3?(D9hL
$t-HJ<!
j$zw(EkN
INTERCAL 2#ha Icm"
PLEASE DO ,1 <- #13 hp,bfcM
DO ,1 SUB #1 <- #238 2M=
gpy
DO ,1 SUB #2 <- #112 {DBgW},
DO ,1 SUB #3 <- #112 J`uV $l:
DO ,1 SUB #4 <- #0 $PstThM
DO ,1 SUB #5 <- #64
6I72;e^!
DO ,1 SUB #6 <- #238 c5<M=$
DO ,1 SUB #7 <- #26 hI;tB6
DO ,1 SUB #8 <- #248 &BCl>^wn}
DO ,1 SUB #9 <- #168 z`xdRe{QP
DO ,1 SUB #10 <- #24 @1gX>!
DO ,1 SUB #11 <- #16 D+N{'d?+
DO ,1 SUB #12 <- #158 [$]vi`c2
DO ,1 SUB #13 <- #52 {G/4#r
2>
PLEASE READ OUT ,1 6N :fq
PLEASE GIVE UP %-i2MK'A
5sEq`P}5
$=TFTSO
Java :u`
public class Hello 4rc4}Yu,JI
{ y!."FoQ
public static void main(String[] args) &2Q4{i
{ 7z)Hq./3@
System.out.println("Hello, world!"); pqBd#
} #)tt}GX
} gsqlWfa
bf-.SX~
.4Jea#M&x
JSP =" #O1$
<% YbND2i
out.print("Hello, world!"); 1xar
L))
%> )Pakb!0H@t
#O/ihRoaO
=m:xf&r#
MIXAL HO/Ij
TERM EQU 19 the MIX console device number z^T/kK3I
ORIG 1000 start address i!LEA/"V
START OUT MSG(TERM) output data at address MSG =[FNZ:3
HLT halt execution y-)|u:~h
MSG ALF "MIXAL" d0"Hu^]
ALF " HELL" ^J< I
Ia4
ALF "O WOR" t Q385en
ALF "LD " 0WaC.C+2i
END START end of the program $5jQm,V$K
>u
,Ac:
R7r` (c!
Nuva B+#!%J_
<..直接输出..> z8G1[ElY
Hello, world! 2%'{f
/ Of*II&
<..或者..> /X~l%Xm
?{NP3
<. R?b3G4~
// 不带换行 'c*Q/C;
? "Hello, world!" =&;orP
LuM:dJ
// 或者 RSC^R}a5
zc01\M
// 带换行 9E5Ec~l
?? 'Hello, world!' % 4|*
.> b
R> G%*a
[nZf4KN
sG[v vm
OCaml ecDni>W
let main () = cVYDO*N2T
print_endline "Hello world!";; Mrysy)x
mSF>~D1_
g X75zso
Pascal d7waBsf
program Hello; ]rGZ
begin vik A
writeln('Hello, world!'); "HX,RJ
@^K
end. un([3r
Yef=HSzo
tj$&89
Perl #JMww
#!/usr/local/bin/perl go >*n\
print "Hello, world!\n"; dO]N&'P7
< %@e<,8
J<hqF4z
PHP 8T<LNC
<?php }MQNzaXY^
print("Hello, world!"); ^/@Z4(E
?>
r&
`#@#eZ
[PG#5.jwQ
Pike DwSB(O#X
#!/usr/local/bin/pike 2E5n07,
int main() #J=^CE
{ ,w-=8>5lrj
write("Hello, world!\n"); :kU#5Aj gK
return 0; m8M2ka
} K^32nQX
Ao?y2 [sE
TwPpZ@
PL/I -c%#Hd
Test: procedure options(main); c{.y9P6
declare My_String char(20) varying initialize('Hello, world!'); ?{=&R o
put skip list(My_String); hc7"0mVd{
end Test; hA=.${uIO
;OC~,?O5
Q9T/@FX
Prolog wFbw3>'a9
goal <S[]VXy
write("hello,world!"). up _Qv#`Q
%u=b_4K"j
S<*h1}V3/
Python aI. 5w9
#!/usr/local/bin/python 0G;
b+
print "Hello, world!" (1%O;D.*?{
%Z~0vwY
bi{G
:xt
REXX gn-@OmIs
say "Hello, world!" LI}@qLe
P~}Yj@2
d\O*Ol*/v
Ruby Mi^/`1
#!/usr/bin/ruby i<\WRzVT
print "Hello, world!\n" q"LE6?hs
_a]0<Vm C0
3g79/w
Scheme P>}OwW
(display "Hello, world!") R6cd;| fan
(newline) x@*RF:\}
ew+>?a'&L
Vq&}i~
sed (需要至少一行输入) 5M v<8P~
sed -ne '1s/.*/Hello, world!/p' "?AJ(>wP
R4_BP5+
MV.&GUez{
Smalltalk f]4j7K!e]
Transcript show: 'Hello, world!' %\f<N1~*
A)9F_;BY
.;J6)h
SNOBOL \yhj {QS.k
OUTPUT = "Hello, world!" d~abWBgC`
END he!Uq%e
}PUY~
u
u>\u}c
SQL ugV/#v O
create table MESSAGE (TEXT char(15)); d-{1>\-_
insert into MESSAGE (TEXT) values ('Hello, world!'); +/>XOY|Ie
select TEXT from MESSAGE; Ghf/IXq#
drop table MESSAGE; 9dCf@5]
b"JX6efnN
2cQG2N2*
Tcl $!goM~pZ
#!/usr/local/bin/tcl &{e:6t
puts "Hello, world!" ?s5/
K+<F,
P
g1{2E<b5
TScript F\2<q$Zn+
? "Hello, world!" v*JXrB&x
Ake$M^Bz
\R[f< K%
Turing Z,I0<ecaD
put "Hello, world!"
#_kV o3
rVM?[_'O
ne|N!!Dmk
UNIX-style shell ` InBhU>
程序中的/bin/sh可改为您使用的shell m% %\k
\
kYZj^tR
#!/bin/sh $O^"OQ_@
echo 'Hello, world!' 3S"kw
, Y^GQ`~#
y:YJv x6&4
GUI 4Z0Y8y8)
]sDlZJX<M
Delphi H~;s$!lG
program HelloWorld; PouWRGS_
uses rm%MQmF
Dialogs; dO!B=/
begin *?~&O.R"
ShowMessage('Hello, World!'); !bBx'
end. GhR%f xe
%?PRBE'}'
\ZtF,`Z
Nuva LAH.PcjPa
<. '_l5Br73=
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) AvcN,
.> 8Z>=sUMQ
aa&\HDh *
&%;K_asV;
Visual Basic ;3&HZq6Z (
MsgBox "Hello, world!" 3M"eAK([
'或者 do DpTwvh
Print "Hello, world!" $H"(]>~
-'uz%2 {
}CQ)W1mO"
Visual FoxPro j4+kL4M@H
? "Hello, world!" -"5r-q q*
b,lIndj#
v5 I}a7
X11 #\&64
用一个程序 &d=ZCaP
wZb77
xmessage 'Hello, world!' N4u-tlA
-J^t#R^$`
用C++和gtkmm 2 ZDr&Alp)o
0[R7HX-@
#include <iostream> }TG=ZVi
#include <gtkmm/main.h> S3sxK:
#include <gtkmm/button.h> ,IRy.
qy
#include <gtkmm/window.h> f5,!,]XO
using namespace std; .$-GGvN]
c4iGtW
class HelloWorld : public Gtk::Window 7i88iT
{ h[oI/X
public: $kxP{0u
HelloWorld(); rfYFS96
virtual ~HelloWorld(); 2)(ynrCe
protected: r;8X6C
Gtk::Button m_button; 3oMhsQz~z
virtual void on_button_clicked(); ~JG\b?s
}; #L9F\ <K
*/y (~O6
HelloWorld::HelloWorld() : m_button("Hello, world!") Rp_)LA
{ l G $s(
set_border_width(10); ]OLe&VRix
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); L%
`lC]
add(m_button); Og<nnq
m_button.show();
s}bv
o
} ;ji["b
M&^Iun
HelloWorld::~HelloWorld() {} MhZ\]CAs9
v&Oc,W
void HelloWorld::on_button_clicked() o((!3H{D
{ )=%TIkeF
cout << "Hello, world!" << endl; UHFI4{Wz
} ;P9cjfSn
`}S;_g!
int main (int argc, char *argv[]) V~fPp"F
{ !30BR|K*
Gtk::Main kit(argc, argv); tPaNhm[-q7
HelloWorld helloworld; o+F<
r#
Gtk::Main::run(helloworld); 1`)e}p&
} .^V9XN{'a
zy'cf5k2
fzjAP7 y
Java -^$`5Rk
import java.awt.*; PdSYFJM
import java.awt.event.*; =H;F{J"
dZ`c
public class HelloFrame extends Frame R?iC"s!
{ #H.DnW
HelloFrame(String title) "-R19SpJKh
{ Mq52B_
super(title); N;R I
A
} 1h#e-Oyff
public void paint(Graphics g) odhcU5
{ 5F$~ZDu
super.paint(g); x*!%o(G
java.awt.Insets ins = this.getInsets(); 'nN'bVl/
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); :N64FR#
} QE+HL8c^s
public static void main(String args []) +'{d^-( (
{ ndHUQ$/(
HelloFrame fr = new HelloFrame("Hello"); #83pitcc
)jGB[s";)y
fr.addWindowListener( `rb}"V+
new WindowAdapter() #AF.1;(k
{ %<{1N|
public void windowClosing(WindowEvent e) /wU4^8Hz
{ +;bP.[Z
System.exit( 0 ); IsiBn(1Z
} >hO9b;F}
} $7*@TMX
); c'
Q4Fzj0'
fr.setResizable(true); K)W:@,*
fr.setSize(500, 100); n!&F%|o^^
fr.setVisible(true); A,4Z{f83
} Ynl Zyw!
} zKfY0A R
#=,c8"O
#Wq@j1?
Java Applet 5#~E[dr
Java Applet用于HTML文件。 [r^WS;9n
=F09@C,
HTML代码: T
3<2ds
&] O^d4/
<HTML> \. YJs"<3
<HEAD> 1*?L>@Wdy
<TITLE>Hello World</TITLE> #|K5ma
</HEAD> ht2J, 1t
<BODY> xM?tdQ~VHY
xwojjiV
HelloWorld Program says: Bdm05}c@u
`t>:i!s/
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> gWfMUl
</APPLET> dy4~~~^A
up2wkc8
</BODY> 'u3,+guz
</HTML> H`
h]y
m8Rt>DY
Java代码: !:Ob3Mq\
b1EY6'R2
import java.applet.*; A8
!&Y