“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。 = R|?LOEK+
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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》。 @^oOXc,r$
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以下是用不同语言写成的Hello World程序的几个例子: Mp*")N,
Ada 3+_? /}<
with Ada.Text_Io; use Ada.Text_Io; sXp>4MomV
procedure Hello is ab8uY.j
begin /%Lj$]S7[4
Put_Line ("Hello, world!"); Z.+-MN WV
end Hello; ZzPlIl}\
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Mw2?U>h1
汇编语言 es@_6ol.@
;u!qu$O
x86 CPU,DOS,TASM 0Qvbc}KP8
MODEL SMALL ;:Q 5?zM
IDEAL J
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STACK 100H O1IR+"0
vt}+d
StUm
DATASEG tbD>A6&VM}
HW DB 'Hello, world!$' sh(G{Yz@
@0A7d
$J(
CODESEG <U`lh
MOV AX, @data kFmd):U!R
MOV DS, AX :U!kn b"/>
MOV DX, OFFSET HW ko\VDyt,
MOV AH, 09H @'`!2[2'?
INT 21H IBWUXG;
MOV AX, 4C00H z><=F,W
INT 21H |r5 n p
END AFO g*{1
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x86 CPU,GNU/Linux,NASM r#
MJ
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 3a #2 }
;Enter this into "hello.asm" then type: 4d3]L`
f
;"nasm -f elf hello.asm" E>f+ E8?
;"ld hello.o -o hello" .w3.zZ0[
;"./hello" U8L%=/N>B
f.acH]p
section .data ;data section declaration |Fz/9+I
msg db 'Hello World!',0AH 'PRsZ`x.
len equ $-msg ;string length i-[ic!RnKj
t%Hg8oya
section .text ;code section declaration |k$^RU<OF
global _start ;entry point (start of execution) M72.
_start: mov edx,len ;string length \}Fx''
mov ecx,msg ;string start .&dW?HS
mov ebx,1 ;file handle: stdout jY'svD~
mov eax,4 ;sys_write 4b]/2H
int 80h ;kernel system call {/`iZzPg
yq+'O&+
mov ebx,0 ;return value /.r|ron:e
mov eax,1 ;sys_exit (UWWULV
int 80h ;kernel system call !gA<9h
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|PR8P!'
x86 CPU,Windows,MASM32 Vm}OrFA
.386 UFBggT\
.model flat,stdcall SV#$Cf g
option casemap:none 734)s
;Include 文件定义 d_s=5+Yj
include windows.inc L+,p#w
include user32.inc %+gYZv-
includelib user32.lib =Hplg>h)
include kernel32.inc AsJN~<0h
includelib kernel32.lib I3`WY-uv
;数据段 5%,5Xe4p
.data E~vM$$O$
szCaption db 'A MessageBox!',0 tY~gn|M
szText db 'Hello,world!',0 .vsrZ_y?
;代码段 <[mT*
.code u6^cLQO+
start: jp=z
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invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK F]]1>w*/0
invoke ExitProcess,NULL xUl=N
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ?WPuTPw{
end start )H@"S]?7i"
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"ee:Z_Sz
AWK qv\n]M_&
BEGIN { print "Hello, world!" } Er/h:=
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nmIos]B
BASIC 50r3Kl0
传统版BASIC(例如GWBASIC): K8[vJ7(!|
Y,BzBUWK
10 PRINT "Hello, world!" " B`k
20 END ~q]@Jp
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或在提示符输入:
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?"Hello, world!":END dr3j<D-Q
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现代版BASIC(例如Quick BASIC): to9~l"n.s
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Print "Hello, world!" SFhi]48&V
x!5b"
"
以下的语句在Quick BASIC中同样有效: ;
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SOE5`
? "Hello,world!" 5cj]Y)I-~
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C\"nlNKw
BCPL )F_vWbg
GET "LIBHDR" WUOoK$I~K
wEd+Ds]$
LET START () BE sG-$d\
1d
$( 8<V6W F`e
WRITES ("Hello, world!*N") NGQBOV
$) Gy}WZ9{
}!_x\eq^
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Befunge ~,#zdm1r@
"!dlrow olleH">v l0Rjq*5hJ
, y04md A6<
^_@ ~N
"rr.w
\S#Mc
&1nZ%J9
Brainfuck z+3GzDLy
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< HURrk~[
+++++++++++++++.>.+++.------.--------.>+.>. iCd$gwA>F
Pw c)u&
GD(gm,,)
C z
= mDd
#include <stdio.h> {Hc [H-
\Af25Mcf:
int main(void) Qm9r>m6p@N
{ >ZRCM
printf("Hello, world!\n"); MU_8bK9m
return 0; i'XW)n
} N
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LPuc&8lGWf
wXUP%i]i=
C++ O*qSc^ 9q
#include <iostream> Ml-GAkgG
~|y$^qy?U
int main() zNTcy1Sthk
{ ad
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std::cout << "Hello, world!" << std::endl; dU4 h
return 0; 9gWR djK:
} pI>yO~Ve
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$a
/jfpV
C++/CLI Oe#*-
int main() H]]UsY`
{ %K9pnq/T^
System::Console::WriteLine("Hello, world!"); .kbo]P
} Z\1*g k
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lI,lR
C# (C Sharp) Q4~/Tl;
class HelloWorldApp [Eq7!_3
{ |A .U~P):
public static void Main() {TmrWFo
{ n,,hE_
System.Console.WriteLine("Hello, world!"); #.Q3}[M
} 9^yf'9S1
} u/s,#
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$!?tJ@{
COBOL FCr^D$_w
IDENTIFICATION DIVISION. -_%8Q#"
PROGRAM-ID. HELLO-WORLD.
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3EY>XS
ENVIRONMENT DIVISION. 30BFwNE
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DATA DIVISION. )Bz2-|\
J&hzr t
PROCEDURE DIVISION. k4HE'WY
DISPLAY "Hello, world!". S*aMUV&
STOP RUN. ,Wbr;
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UrC>n
Common Lisp N}|<P[LW
(format t "Hello world!~%") g$^:2MT"aQ
NA :_yA"
/m"#uC!\
DOS批处理 pxGDzU
@echo off _ ^2\/@
echo "Hello, world!" #
dA-dN
o$4i{BL
{4C/ZA{|l
Eiffel crwui 8
class HELLO_WORLD sY-
]
Q
\Fh#CI
creation bmid;X|
make fen~k#|l
feature +VSq [P
make is jV|j]m&t
local ~10 >mg
io:BASIC_IO },]G +L;R
do =/#+,
!!io _N @h
io.put_string("%N Hello, world!") c4Leh"ry
end -- make :cE6-Fv
end -- class HELLO_WORLD )qID<j#
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Erlang ~dtS
-module(hello). -%G}T}"_
-export([hello_world/0]). t| cL!
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hello_world() -> io:fwrite("Hello, World!\n"). }G/#Nb)
)%zOq:{\5
7Rq|N$y.3
Forth n5NwiSE
." Hello, world!" CR sC}p_'L
15l{gbCW
IG(1h+5R(
Fortran pzcl@
WRITE(*,10) o9XT_!Cwg
10 FORMAT('Hello, World!') !
^ DQX=1
STOP id?B<OM
END rYKGBo8"
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\/8oua_)
HTML 1;E^3j$
<HTML> .7K<9K +P
<HEAD> Ovhd%qV;Y
<TITLE> Hello World! </TITLE> ]ZI ?U<0
</HEAD> ^o8o
<BODY> l ~C=yP(~
<p>Hello World!</p> w=Yc(Y:h
</BODY> uE=pq<
</HTML> `zP{E T_Y
Chs#}=gzi
w9aLTLv-
HQ9+ n5U-D0/Q
H !7>~=n_,L.
+EOd9.X\~
}o d5kK;
INTERCAL '
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PLEASE DO ,1 <- #13 $&ZN%o3
DO ,1 SUB #1 <- #238 lh]Q\
DO ,1 SUB #2 <- #112 hMNC]
DO ,1 SUB #3 <- #112 JBK(Nk
DO ,1 SUB #4 <- #0 i.5?b/l0
DO ,1 SUB #5 <- #64 8q/3}AnI
DO ,1 SUB #6 <- #238 5*hA6Ex7
DO ,1 SUB #7 <- #26 (/[wM>q:r
DO ,1 SUB #8 <- #248 AdL>?SG%
DO ,1 SUB #9 <- #168 T!YfCw.HZ
DO ,1 SUB #10 <- #24 ls ,;ozU
DO ,1 SUB #11 <- #16 V"u .u
DO ,1 SUB #12 <- #158 DQ`\HY
DO ,1 SUB #13 <- #52 (X?et
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PLEASE READ OUT ,1 j&|>Aa${
PLEASE GIVE UP ' 2:HBJ
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Java ^ fqco9^;
public class Hello ]w5j?h"b
{ 17ol %3 M
public static void main(String[] args) HxnWM\ p
{ *Z}9S9YtN
System.out.println("Hello, world!"); 40m>~I^q}
} A>B_~=
} \1f&D!F]b
=}1m.
OaF[t*]D3
JSP %4I13|<A`
<% u}(K3H3
out.print("Hello, world!"); !g2~|G
%> 3q)y;T\yW
P/Zp3O H
XdV(=PS!a@
MIXAL D=_FrEM_IA
TERM EQU 19 the MIX console device number ^77X?nDz=h
ORIG 1000 start address )+dd
START OUT MSG(TERM) output data at address MSG ud$*/ )/
HLT halt execution LEJn
1
MSG ALF "MIXAL" @E
!`:/k
ALF " HELL" Hq!|(
ALF "O WOR" j1i<.,0g
ALF "LD " &Ndq^!e
END START end of the program e"^n^_9
`&/~%>
Z9p`78kYyh
Nuva *Hed^[sO
<..直接输出..> Rdj/n :
Hello, world! oaGpqjBGQ
qu+Zl1~$]
<..或者..> LQDU8[-
S&z8-D=8k
<. i}e4P>ADD
// 不带换行 sA:k8aj
? "Hello, world!" ) mh,F#"L
Nu4PY@m]C
// 或者 Kq&JvY^
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// 带换行 ?L(y8b}F(
?? 'Hello, world!' YJqbA?i
.> w#w?Y!JXo
){FXonVP
u0i;vO)MNt
OCaml 3x3 =ke!
let main () = mNdEn<W
print_endline "Hello world!";; MzpDvnI9
X{-901J1
R7NE=X4
Pascal qt,;Yxx#^
program Hello; Tq,xW
begin "Cn<x\E b
writeln('Hello, world!'); MgrJ ;?L
end. Bnu5\P
5169E*
;Sw%t(@
Perl r NT>{
#!/usr/local/bin/perl a8v9j3.
print "Hello, world!\n"; f6U
i~
K<~J*k<v
^/:G`'
PHP 4fgYO]
<?php ?7cT$/4
print("Hello, world!"); R|JBzdK+P
?> ;Vlt4,s)
XFJz\'{
+xojnv
Pike 7Ug^aA
#!/usr/local/bin/pike vfpK|=[7o
int main()
y8/+kn +
{ WEsX+okj
write("Hello, world!\n"); w)Wg 8
return 0; i_ z4;%#?
} OiJz?G:m
f;cY&GC
~ "stI
PL/I ]Z=O+7(r
Test: procedure options(main); ! ~3zp L
declare My_String char(20) varying initialize('Hello, world!'); "S^""5
put skip list(My_String); V2/?1
end Test; K>S:Z
Rw]lW;EN<
:7DXLI|L#?
Prolog CoTe$C7
goal | \6Ff/O
write("hello,world!"). Cs?[
Lf0Wc'9{
E`gUNAKQ
Python 1#
;`1i
#!/usr/local/bin/python a@s@E
print "Hello, world!" ^7,`6g
P`]p&:
q-R'5p\C?|
REXX (^9dp[2
say "Hello, world!" G{ 4lgkyy
p?e-`xs
l2
mO{'|C
Ruby dH_g:ocA
#!/usr/bin/ruby 2Wp)CI<\D
print "Hello, world!\n" g#s hd~e
z=pGu_`2
! w2BD^V-
Scheme MVXy)9q
(display "Hello, world!") v|@1W Uc,g
(newline) ,; k`N`#'
/^Ng7Mi!
}&Kl)2:O
sed (需要至少一行输入) rJUXIV>z
sed -ne '1s/.*/Hello, world!/p' U2HAIV8
(hn;C>B
PCZ %<>v
Smalltalk i27KuPjC
Transcript show: 'Hello, world!' P^J #;{R
D+('1E?
P)rz%,VF+
SNOBOL _t.Ub:
OUTPUT = "Hello, world!" M~LYq
END d 8%sGH
}Sv\$h
HsRQiai*
SQL *wu|(t_ A
create table MESSAGE (TEXT char(15)); C[s='v~}
insert into MESSAGE (TEXT) values ('Hello, world!'); C*&FApG
select TEXT from MESSAGE; S?e*<s9k
drop table MESSAGE; Y7WU4He L
VK3e(7b
Yu_`
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Tcl rO7[{<97m
#!/usr/local/bin/tcl i8i~b8r]
puts "Hello, world!" O~&j}WN
_ Y8jl,J
J*m~fZ^
TScript 8c5%~}kG
? "Hello, world!" U~s-'-C/
+?bjP6w_g
z,IUCNgM
Turing H:!pFj
put "Hello, world!" 4$MV]ldUI
Q/ ^a(
Wk-jaz
UNIX-style shell NW`L6wgl
程序中的/bin/sh可改为您使用的shell SeIL
^_!2-QY.~
#!/bin/sh H-5h-p k
echo 'Hello, world!' F |^tRL-
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66Bx,]"6
GUI h7cE"m
b2G1@f.U
Delphi y.+!+4Mg|
program HelloWorld; Tv /?-`Y
uses 8Q\ T,C
Dialogs; K\y
W{y1
begin DE!P[$J
ShowMessage('Hello, World!'); @lTd,V5f
end. jV~+=(w)
+puF0]TR,i
`&5_~4T7
Nuva <-O^ol,fX
<. eg(1kDMpn
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) <jIuVX
.> {^_K
A? T25<}
v/~Lf i
Visual Basic FN"Ye*d
MsgBox "Hello, world!" #Z1
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'或者 ;Wedj\Kkp
Print "Hello, world!" ]/c!;z
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c);vl%
Visual FoxPro ,B,:$G<
? "Hello, world!" vG#,J&aW
v#b( 0G
-Gd@baV
X11 ^+rI=c 0
用一个程序 S- JD}+9
#?klVK&e/
xmessage 'Hello, world!' LQXMGgp
H.#zbKj
用C++和gtkmm 2 0q_?<v_1
\<Di|X1
#include <iostream> ]Ia}H+ &
#include <gtkmm/main.h> C1po]Ott*
#include <gtkmm/button.h> [J
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#include <gtkmm/window.h> UthM?g^
using namespace std; 33OkYC%e
(65|QA
class HelloWorld : public Gtk::Window JlhI3`X;/
{ uh&Qdy!I
public: OSIf>1
HelloWorld(); Y?xc#'
virtual ~HelloWorld(); -v{LT=,O
protected: =.2)wA"e'
Gtk::Button m_button; "V{v*Aei0
virtual void on_button_clicked(); cn2SMa[@S
}; (R-(
h4N&Ybfo
HelloWorld::HelloWorld() : m_button("Hello, world!") ~en' E
{ >\'gIIs
set_border_width(10); U)] }EgpF
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); z4wG]]Kh*
add(m_button); iE,/x^&,&
m_button.show(); A1F!I4p5
} k293wS
y_{fc$_&
HelloWorld::~HelloWorld() {} I
T gzD"d
m\@ q2l-
void HelloWorld::on_button_clicked() .RN2os{
{ L&G5 kY`
cout << "Hello, world!" << endl; &{ZTtK&JF
} sjG@4Or
L^e%oQ>s
int main (int argc, char *argv[]) k@^T<Ci
{ Oz-@e%8L
Gtk::Main kit(argc, argv); j71RlS73
HelloWorld helloworld; }E#1Z\)
Gtk::Main::run(helloworld); g^[BnP)I
} 3.w &e0Es
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a}V<CBi
Java !a^'Jbb
import java.awt.*; /kNSB;
import java.awt.event.*; _6]c f!H
PYr'1D'
public class HelloFrame extends Frame
/PZxF
{ Y;#H0v>E
HelloFrame(String title) wPxtQv
{ y)mtSA8
super(title); <Y+>a#T
} M s Q=1
public void paint(Graphics g) G!E1N(%o
{ pP^5y{
super.paint(g); *&tv(+P
java.awt.Insets ins = this.getInsets(); !+_X q$9_
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); aPm2\Sq$
} Vu;z|L
public static void main(String args []) d /lV+yZ
{ >;+q,U}
HelloFrame fr = new HelloFrame("Hello"); ]
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`ZGKM>q`
fr.addWindowListener( T[%@B"
new WindowAdapter() WP >VQZ&
{ t(Gg
1
public void windowClosing(WindowEvent e) n..R'vNj
{ >j)y7DSE
System.exit( 0 ); M i047-% (
} nTCwLnX(O
} qL~|bfN
); ZG8Xr"
fr.setResizable(true); &VT O9d
fr.setSize(500, 100); Ue(\-b\)
fr.setVisible(true); 9YY*)5eyD
} =i>i,>bv
} gXe`G(w
l(d3N4iz
#A=ER[[
Java Applet hE;BT>_dn
Java Applet用于HTML文件。 |nmt /[
91M5F$
HTML代码: 4ZtsLMwLD
I8VCR8q
<HTML> )wCV]TdF
<HEAD> NE+
;<mW
<TITLE>Hello World</TITLE> z4 KKt&
</HEAD> rkn'1M&u
<BODY> 0gH;y+\=*
e@{Rlz
HelloWorld Program says: ahg]OWn#
Bb.U4#
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> o_n 3.O=
</APPLET> `&i\q=u+
Dr5AJ`y9A
</BODY> =H8Y
</HTML> 3ICM H
bVOJp% *s
Java代码: ;@H:+R+(
c{[ lT2yxU
import java.applet.*; 75eZhs[b
import java.awt.*; F<