“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。 7vB6IF
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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》。 ?s9f}>
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以下是用不同语言写成的Hello World程序的几个例子: TA!6|)BUW
Ada e3%dNa
with Ada.Text_Io; use Ada.Text_Io; /wJocx]vQ
procedure Hello is 0$.;EGP
begin m=D9V-P
Put_Line ("Hello, world!"); BVxk}#d
end Hello; NPt3#k^bW
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E-HK=D&W/
汇编语言 &bCk`]j:
x Z`h8
x86 CPU,DOS,TASM #i-b|J+%
MODEL SMALL U{8x.CJ]
IDEAL 7m;<b$
STACK 100H lxtt+R
n@//d.T
DATASEG O|0,=
5
HW DB 'Hello, world!$' X/A(8rvCr
dY.NQ1@"
CODESEG mZL0<vU@^
MOV AX, @data qXB5wDJg
MOV DS, AX !+3nlG4cw
MOV DX, OFFSET HW ME'LZ"VT
MOV AH, 09H 5DVSaI$ =
INT 21H k,jcLX.
MOV AX, 4C00H ePiZHqIsv/
INT 21H 'OsRQ)E
END '2ACZcjDSv
JYa3xeC;
jUrUM.CJ\N
x86 CPU,GNU/Linux,NASM aoU5pftC
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). $%?[f;S3,
;Enter this into "hello.asm" then type: G5!!^p~
;"nasm -f elf hello.asm" }ZfdjF8N!
;"ld hello.o -o hello" cf*SWKs
;"./hello" hU5_ dV
-}"nb-RR\
section .data ;data section declaration HXQ
}B$V
msg db 'Hello World!',0AH ffem7eQ
len equ $-msg ;string length [g$IN/o%
BYb"[qPV
section .text ;code section declaration J''lOj(@
global _start ;entry point (start of execution) \NQ[w7
_start: mov edx,len ;string length 7$Pf
mov ecx,msg ;string start -n6e;p]
mov ebx,1 ;file handle: stdout He}"e&K
mov eax,4 ;sys_write h%Uq
int 80h ;kernel system call (T =u_oe
dRXrI
mov ebx,0 ;return value LCok4N$o
mov eax,1 ;sys_exit Ksvk5r&y
int 80h ;kernel system call O2oF\E_6
$!\Z_:
}}4uLGu)
x86 CPU,Windows,MASM32 (4FZK7Fm
.386 F[~~fm_
.model flat,stdcall 4'H)h'#C
option casemap:none C@9K`N[*
;Include 文件定义 8k?V&J `
include windows.inc ;H"OZRQ
include user32.inc 4gn|zSe>^
includelib user32.lib km6O3>p5r
include kernel32.inc 4 }*V=>z
includelib kernel32.lib DfVSG1g
;数据段 E^x/v_,$w!
.data y+$a}=cb0
szCaption db 'A MessageBox!',0 Cuo"6, M
szText db 'Hello,world!',0 %=i/MFGX
;代码段 YG6Y5j[-X~
.code HK`r9frn
start: <E7y:%L[Go
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ~!'T!g%C
invoke ExitProcess,NULL jN!sLW
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ``Rg0o
end start ^2"w5F
hGo/Ve+@
SQDc%I>b
AWK r-&* `Jh
BEGIN { print "Hello, world!" } o>yo9n%t
xm> y3WC
WWv.kglz
BASIC MG3xX;
传统版BASIC(例如GWBASIC): -
*xn`DH
VaTA|=[;
10 PRINT "Hello, world!" A2I\T,Z
20 END pm:#@sl
+"PME1
或在提示符输入: kDc/]Zb%
\;!g@?CA
?"Hello, world!":END K9S(Xip
XknbcA|
现代版BASIC(例如Quick BASIC): |i- S}M
1N +ju"2R
Print "Hello, world!" gX/?
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以下的语句在Quick BASIC中同样有效: 9zaSA,}
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? "Hello,world!" KZ|p_{0&
^-s`$lTp
,/UuXX
BCPL |6~ Kin
GET "LIBHDR" ^aY,Wq
?r^>Vk}
LET START () BE *ub"!}$st
$( c1g'l.XL
3
WRITES ("Hello, world!*N") (_eM:H=e>
$) >%85S >e
U6~79Hnt
(o1o);AO
Befunge D^A#C<Gs
"!dlrow olleH">v C40W@*6S2
, T,v5cc:nO
^_@ /.:&9 c
k~qZ^9QB~
q(}#{OO
Brainfuck M[^EHa<i
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ? 1Uq ud
+++++++++++++++.>.+++.------.--------.>+.>. ;i&t|5y~
r\m2Oo)]
!GtCOr\'
C 6jz~q~I
#include <stdio.h> '.#3h$d
b%e7rY2
int main(void) l,ra24
{ d
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printf("Hello, world!\n"); I 3dUI~}u
return 0; ='fN
xabB
} me@EKspX
]wV_xZ)l^A
]?~[!&h
C++ $H1igYc
#include <iostream> A"~Oi
-7A2@g
int main() laaoIL^
{ &dJ\}O[r
std::cout << "Hello, world!" << std::endl; l1]'3]P(
return 0; \n0MqXs#
} %?!TqJT?{
saR9_
ux
p
i \SRDP
C++/CLI 4_o+gG%HaM
int main() 49dN ~k=
{ VPOp#;"%
System::Console::WriteLine("Hello, world!"); VBe&of+
} }1Pv6L(o)
kj'
p\r V 6+
C# (C Sharp) W";Po)YC
class HelloWorldApp WRN}>]NgQ
{ h($Jo
public static void Main() {D4N=#tl
{ /
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System.Console.WriteLine("Hello, world!"); L$= a,$
} l# |M.V6G
} &F|Wk,y
ib~EQ?u{
^Rmrre`uU
COBOL N1X;&qZDd
IDENTIFICATION DIVISION. IdciGS6t
PROGRAM-ID. HELLO-WORLD. >~@ABLp6
}~! D]/B
ENVIRONMENT DIVISION. avxI%% |
q:G3y[ P
DATA DIVISION. +!"7=?}
TXfG@4~kC
PROCEDURE DIVISION. 9,0}}3J
DISPLAY "Hello, world!". 5!7vD|6
STOP RUN. 'z">4{5
"IJcKoB
~JohcU}d
Common Lisp ]H=P(Z-
(format t "Hello world!~%") \-I)dMm[
;e\K8*o
IYB;X
DOS批处理 _H$Z}2g<z
@echo off )Tad]Hd"W
echo "Hello, world!" K?,`gCN}v
mv1|oFVW
Cj#?Z7}z
Eiffel :w:ql/?X
class HELLO_WORLD [3io6XG x@
anFl:=
creation qgsw8O&
make +!<{80w
feature jx8hh}C
make is gEnc;qb
local i-Ri;E
io:BASIC_IO _O"C`]]
do <W88;d33r=
!!io $EPDa?$*
io.put_string("%N Hello, world!") kud2O>>
end -- make &A~(9IV
end -- class HELLO_WORLD
-(|}:J
^uIKwql
73(5.'F
Erlang 0coRar?+b
-module(hello). d(6&kXK
-export([hello_world/0]). wm/>_
K${CHKFf
hello_world() -> io:fwrite("Hello, World!\n"). )LE#SGJP
_<l 9j;6
@wW)#!Mou
Forth $q$\
." Hello, world!" CR ;%xG bg!lg
2Jn?'76`
f'B#h;`
Fortran LrnE6U9
WRITE(*,10) D }EH9d
10 FORMAT('Hello, World!') \t]aBT,
STOP JL&ni]m
END 'pl){aL`@u
7'TXR[
g<N3 L [
HTML $
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<HTML> ;q" ,Bs
<HEAD> }7/Ob)O
<TITLE> Hello World! </TITLE> &^@IAjxn
</HEAD> Y'M}lv$sa
<BODY> j:'!P<#
<p>Hello World!</p> r2>y
!Q?
</BODY> w}Xy;0c
</HTML> O<6!?1|KP
/BfCh(B
B,RHFlp{
HQ9+ 3|.KEJC"
H SLI358]$<
e+P|PW
[LHfH3[gU
INTERCAL %~YQlN
PLEASE DO ,1 <- #13 9/LJtM
DO ,1 SUB #1 <- #238 B<?fD
DO ,1 SUB #2 <- #112 >?0 f>I%\
DO ,1 SUB #3 <- #112 D_Cd^;b
DO ,1 SUB #4 <- #0 /S)&d N`
DO ,1 SUB #5 <- #64 i@`T_&6l
DO ,1 SUB #6 <- #238 y{1|@?ii
DO ,1 SUB #7 <- #26 hOF>Dj
DO ,1 SUB #8 <- #248 Y%]&h#F
DO ,1 SUB #9 <- #168 &\s>PvnquX
DO ,1 SUB #10 <- #24 "Kt[jV;6
DO ,1 SUB #11 <- #16 [:C!g#o
DO ,1 SUB #12 <- #158 qGc>+!y
DO ,1 SUB #13 <- #52 DSx D531[A
PLEASE READ OUT ,1 ?3Dsz
PLEASE GIVE UP vCtag]H2@
j8#B
>l|dLyiae
Java jYJfo<
public class Hello .=-K7.X.)
{ 3ZU<u;
public static void main(String[] args) h; sdm/
{ 7q,M2v;
System.out.println("Hello, world!"); ~`x<;Ts
} 9:jZ3U
} mbRN W
Ok2>%e
kVb8 $Sp
JSP 4>xv7
<% WgQ6EV`
out.print("Hello, world!"); Qr
l> A*
%> _w>9Z>PR
rC!~4xj-
Q!dNJQpb
MIXAL S[W|=(f9
TERM EQU 19 the MIX console device number 1ssEJ;#s
ORIG 1000 start address 0q
^dpM
START OUT MSG(TERM) output data at address MSG +R?d6IjH
HLT halt execution _K"X
MSG ALF "MIXAL"
[{!5{k!
ALF " HELL" 1p9+c~4l:
ALF "O WOR" 8y,
]>n
ALF "LD " ="*8ja-K
END START end of the program b bO1`b-
N/fH% AtM
t'0dyQ%u
Nuva 4?{e?5)
<..直接输出..> ,:QDl
Hello, world! BnLWC
N2^B
<..或者..> A_WtmG_9
*FT )`
<. bqDHLoB\1
// 不带换行 "m:4e`_dz
? "Hello, world!" o-jF?9m
tgbr/eCoU
// 或者 ]h$,=Qf
hD
'
Z}/3 dp
// 带换行 Dj9).lgc
?? 'Hello, world!' q={\|j$X
.> ]}&f<X
$lMEZt8A
=pP0dvn
OCaml /)` kYD6
let main () = @gZ<!g/vza
print_endline "Hello world!";; CS*wvn;.
;9R;D,Gk!
Jh'\ nDz@e
Pascal f}cz_"o4
program Hello;
B)M& FO
begin $}/ !mXI5
writeln('Hello, world!'); bLysUj5[5
end. HwH Wi
n8 eR?'4
uII:Y{G
Perl bNG;`VZ%
#!/usr/local/bin/perl ~agzp`!M
print "Hello, world!\n"; ^{T3lQvt
]'F{uDm[
5Go&+|c vJ
PHP }bVWV0Aeim
<?php ''f07R
print("Hello, world!"); L@|W&N;%a
?> N@>,gm@UU
+)Pv6Zog[
}'KVi=qnHb
Pike VBIY[2zf
#!/usr/local/bin/pike {zc<:^r^
int main() e:Zc-
{ 0pS|t/h0
write("Hello, world!\n"); 0NB6S&lI^k
return 0; lr[a~ca\
} ~_Tm S9
xPY/J#X$
0omg%1vt<A
PL/I E Cx_
[|3{
Test: procedure options(main); <ealt
declare My_String char(20) varying initialize('Hello, world!'); K`nI$l7hg
put skip list(My_String); j3bTa|UdT
end Test; %7PprN0>
6.Nu[-?
,HEx9*E/s
Prolog *@q+A1P7@
goal V6,D~7
write("hello,world!"). y#AwuC K
o?f7_8fG
aPq9^S*
Python ai(<"|(
#!/usr/local/bin/python U/2g N
H
print "Hello, world!" Vs~^r>
eiJO;%fl>l
U-ILzK
REXX 4'W| '4'b
say "Hello, world!" p1Q[c0NMK
|#x;}_>7
2B8p3A
Ruby %:n1S]Vr
#!/usr/bin/ruby 6rEt!v #K[
print "Hello, world!\n" {6v|d{V+e
/vl]Oa&U
{R7>-Y[4)2
Scheme nu] k<^I5|
(display "Hello, world!") )""i"/Mn
(newline) OYJy;u3"
2sjP":
,P ?TYk
sed (需要至少一行输入) BYEqTwhT&
sed -ne '1s/.*/Hello, world!/p' w0Fi~:b
\`#;J?Y|`F
,epKt(vl
Smalltalk {}?s0U$5
Transcript show: 'Hello, world!' 22\Buk}?
FDaHsiI:
AC=cz!3iB
SNOBOL \^kyC1
OUTPUT = "Hello, world!" p;:tzH\l
END jK#y7E
.*>LD
$jb 0/
SQL N:!XtYA<
create table MESSAGE (TEXT char(15)); BJk:h-m [
insert into MESSAGE (TEXT) values ('Hello, world!'); 0}q ij
select TEXT from MESSAGE; />XfK,c-
drop table MESSAGE; Z&=K+P
PNXZ 3:W
J.:"yK""
Tcl .Lo$uKsW$l
#!/usr/local/bin/tcl I]>-~_
puts "Hello, world!" YH^_d3A;
d3T|N\(DL
-vI?b#
TScript .b]g#Du=
? "Hello, world!" Tk9*@kqv
Phl't~k
k0?4vA
Turing tnbaU%;|J
put "Hello, world!" L1`^~m|
0/<}.Z]
[kzcsJ'/e
UNIX-style shell $nQ; ++
程序中的/bin/sh可改为您使用的shell Q{!lLka
M}}9
#!/bin/sh 3O<<XXar
echo 'Hello, world!' {o7ibw=E)
h[3N/yP
=/J4(#Xb
GUI z.eqOPW
+DM+@F
Delphi B_M)<Ad
program HelloWorld; .G1NY1\
uses $Vbgfp~U-
Dialogs; Z;XR%n8
begin dY/=-ymW
ShowMessage('Hello, World!'); Y>EwU
end. q|om^:n.
~R/7J{Sg
<"/Y`/
Nuva E8=.TM]L
<. %p"x|e
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) '/SMqmi
.> SxC$EQgL
$I-$X?
N7%Jy?-+
Visual Basic bXc7$5(!VB
MsgBox "Hello, world!" @g[p>t> *
'或者 &529.>
Print "Hello, world!" VZF/2d84&w
WDKj)f9cy
e}f!zA
Visual FoxPro eg)=^b
? "Hello, world!" 6 -gx ba
79u L"N;
\,[Qg#W$u
X11 p{!aRB%
用一个程序 -hL8z$}
5|xFY/%
xmessage 'Hello, world!' G-Z_pGer^
1QE-[|
用C++和gtkmm 2 '/b,3:
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=
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#include <iostream> d#I'9O0&
#include <gtkmm/main.h>
k$}XZ,Q
#include <gtkmm/button.h> O?D*<rwD
#include <gtkmm/window.h> ,Zzh. z::D
using namespace std; %fh
,e5(LT
*FR
Eh@R
class HelloWorld : public Gtk::Window ;%]Q%7
{ \Yz>=rY
public: =]\,I'
HelloWorld(); :cG_aOkid
virtual ~HelloWorld(); _+wou(1y
protected: CCp{ZH s
Gtk::Button m_button; m'r6.Hp3Ng
virtual void on_button_clicked(); >AV-i$4eQ@
}; xv 's52x
s}`ydwSg8
HelloWorld::HelloWorld() : m_button("Hello, world!") w@nN3U+
{ ;_of'
set_border_width(10); ;Y
j_@=
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); }Nl-3I.S^
add(m_button); E92dSLhs5
m_button.show(); <y6M@(b
} :r:5a(sq
v(FO8*5DZ
HelloWorld::~HelloWorld() {} Dq*>+1eW2
~!,'z
void HelloWorld::on_button_clicked() '7
6}6G%
{ nBaY|
cout << "Hello, world!" << endl; q*@7A6:FV>
} 5IBe;o
xRP#}i:m
int main (int argc, char *argv[]) /t%IU
{ TWEmW&Q
Gtk::Main kit(argc, argv); 5ts8o&|
HelloWorld helloworld; !a~>;+
Gtk::Main::run(helloworld); d'kQE_y2.
} tu6c!o,@
z++*,2F
^g~Asz5]
Java &y mfA{s
import java.awt.*; t}qoIxy)
import java.awt.event.*; Io5-[d
aoco'BR F
public class HelloFrame extends Frame _z)G!_7.>\
{ JnmJN1@I
HelloFrame(String title) !?Z}b.%W
{ ,78QLh9:
super(title); my[)/'
} niFX8%<hP
public void paint(Graphics g) UALwr>+VJ
{ ^lB1- ;ng
super.paint(g); (".`#909
java.awt.Insets ins = this.getInsets(); /+"BU-aQk
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); >wdR4!x!?
} ]b.@i&M
public static void main(String args []) #|GP]`YT
{ z~A||@4'
HelloFrame fr = new HelloFrame("Hello"); <!Nj2>
rV"<1y:g
fr.addWindowListener( ,@/b7BVv
new WindowAdapter() ;q6:*H/
{ 2l{g$44
public void windowClosing(WindowEvent e) "T<Q#^m
{ | 5Mhrb4.
System.exit( 0 ); 3:YZC9
} R8c1~'
} 8PDt 7
\
); 9&g//JlD
fr.setResizable(true); s IY`H^
fr.setSize(500, 100); )|XmF4R
fr.setVisible(true); Ua,Lg.z
} k5$_Q#
} J1 a/U@"
lHV
bn7
<o3e0JCq
Java Applet i t,i^32|
Java Applet用于HTML文件。 -F/"W
=~?2i)-mC
HTML代码: ?M;2H{KG:
^p|MkB?uM
<HTML> FdKp@&O+1
<HEAD> TCX*$ac"
<TITLE>Hello World</TITLE> &0It"17Ej
</HEAD> 7F>5<Gv:-
<BODY> DFwkd/3"
F8Rd#^9PD
HelloWorld Program says: )V!9&
Pc nr
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> /wljbb/s
</APPLET> ?>1AT==wI
7;5?2)+=6
</BODY> T6Z 2 #
</HTML> a^~T-;_V
ES;7_ .q
Java代码: @rRBo:0%
Zi|MWaA.f
import java.applet.*; Zuo7MR
import java.awt.*; {<\nl#}5S
R^1sbmwk
public class HelloWorld extends Applet [0lCb"
{ Cj _Q9/
public void paint(Graphics g) ZK27^oG
{ `5r*4N<
g.drawString("Hello, world!", 100, 50); YKJk)%;+w
} <dV|N$WV
} VSx[{yn
1U;je,)
e=o<yf9>Q
java script \wCj$-;Jt
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 MQ$[jOAqP
H2BD5
<script language="java script"> 9b``l-rO
function helloWorld() qmdl:J|?
{ }9/30
alert("Hello World"); `l9Pk\X[
} s_hf,QH
</script> 0F8y8s
}W#Gf.$6C
<a href="java script:this.location()" kUUN2
onclick="java script:helloWorld();">Hello World Example</a> E
b-?wzh
(*;b\h
|qH -^b.F
PostScript Sqed*
PostScript是一种专门用来创建图像的语言,常用于打印机。 Lp5LRw
>to NGGU=~
/font /Courier findfont 24 scalefont [<