“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。 &:Sb$+z
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 l(?Yx
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以下是用不同语言写成的Hello World程序的几个例子: } bEu+bZ
Ada ?r}!d2:dX
with Ada.Text_Io; use Ada.Text_Io; FUKE.Uxd
procedure Hello is u^uo=/
begin 6|{uZNz
Put_Line ("Hello, world!"); d5tpw$A
end Hello; W'<cAg?
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KDy:A>_ G"
汇编语言 W'M\DKJ?
fSzX /r
x86 CPU,DOS,TASM ZUUfn~ORc
MODEL SMALL {bPcr hB
IDEAL &Qq4xn+J
STACK 100H K7$Vl"l
!FR1yO'd>
DATASEG Yq%D/dU8
HW DB 'Hello, world!$' P7p'j
Nx"v|"
CODESEG JulxFjC
MOV AX, @data _Rnq5y
MOV DS, AX Abf=b<bu
MOV DX, OFFSET HW a3oSSkT
MOV AH, 09H g63?(+Fz
INT 21H {>=#7e-]
MOV AX, 4C00H U-3uT&m*9.
INT 21H Is !DiB
END "ktC1y1
b{Kw.?85
0!,)7
x86 CPU,GNU/Linux,NASM .j 0]hn]
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). {T[/B"QZG
;Enter this into "hello.asm" then type: rCO:39L-
;"nasm -f elf hello.asm" 'BwM{c-O"
;"ld hello.o -o hello" n)rF!a
;"./hello" 9=Rj9%
h\^> s$
section .data ;data section declaration JPT VZ
msg db 'Hello World!',0AH r&-Ir3[
len equ $-msg ;string length hDs.4MZC`
Kq`"}&0b\
section .text ;code section declaration 7w=%aW|
global _start ;entry point (start of execution) S+C^7# lT
_start: mov edx,len ;string length mLn =SU{#
mov ecx,msg ;string start q7%eLJ
mov ebx,1 ;file handle: stdout P=9Zm
mov eax,4 ;sys_write ^NTOZ0x~#
int 80h ;kernel system call =xX\z\[A
>}ozEX6c2
mov ebx,0 ;return value {bvm83{T
mov eax,1 ;sys_exit $W;IW$
int 80h ;kernel system call id.W"5+
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y3!=0uPf
x86 CPU,Windows,MASM32 g1`/xJz|
.386 @Q atgYu
.model flat,stdcall #/9(^6f:
option casemap:none lYu1m
;Include 文件定义 i>[1^~;
include windows.inc jsvD[ \P
include user32.inc \HOOWaapN
includelib user32.lib E$[\Fk}S
include kernel32.inc S:"t]gbF =
includelib kernel32.lib %.R_[.W
;数据段 ngN_,x7yc
.data eMvb*X6
szCaption db 'A MessageBox!',0 Z qg(\
szText db 'Hello,world!',0 {q:o}<-L+
;代码段 HH|&$C|64
.code (&$|R\W.
start: 1XO*yZF
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Mr(~
*
invoke ExitProcess,NULL QPfS3%p`
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |8"~ou:.
end start -$4%@Z
VBssn]w
3EcmNwr
AWK <z|? C
BEGIN { print "Hello, world!" } G?]E6R
EhybaRy;C
q'?:{k$%
BASIC #7U,kTj9
传统版BASIC(例如GWBASIC): (K+TqJw
QWf)5S
10 PRINT "Hello, world!" R6Cm:4m}I
20 END O.E
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或在提示符输入: r Q'tab.,]
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?"Hello, world!":END ?8(`tS(_?
S~F:%@,*
现代版BASIC(例如Quick BASIC): iEki<e/
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Print "Hello, world!" 38Z"9
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以下的语句在Quick BASIC中同样有效: Rhx7eU#&
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? "Hello,world!" k&DHQvfB
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h{sW$WA
BCPL -&kQlr
GET "LIBHDR" KF'H|)!K
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LET START () BE >UJ&noUD#:
$( ),\>'{~5&
WRITES ("Hello, world!*N") 1qUdj[Bj
$) NI(`o8fN
"`"j2{9|e!
0mj=\ j
Befunge i:kWO7aP
"!dlrow olleH">v nHKEtKDd
, 0m`7|80#P
^_@ 9rao&\eH
_|TE )h
2ZtqZ64i
Brainfuck 9zO3KT2
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< D-3/?"n
+++++++++++++++.>.+++.------.--------.>+.>. &,."=G
54J<ZXCs
].dTEzL9X
C @mJN
#include <stdio.h> 9'toj%XQ
Hs=!.tZ,
int main(void) {|xwvTlJ
{ bOck^1Hk y
printf("Hello, world!\n"); kM3BP&
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return 0; p!aeL}g`
} g-p
OO/|
f/;\/Q[Z7
45MK|4\Y_
C++ t48(GKF
#include <iostream> +H&_Z38n
iW"L!t#\|
int main() rpEFyHorJ
{ +zs6$OI]V
std::cout << "Hello, world!" << std::endl; 6eDIS|/
return 0; GYO\l.%V5y
} 7Xad2wXn
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qfSoF|
C++/CLI f6L_uk`{
int main() Msd!4TrBJ
{ X^|oY]D
System::Console::WriteLine("Hello, world!"); 7-o=E=
} \aZ(@eF@@Q
[V)sCAW
=|U2 }U;
C# (C Sharp) p fBO5Ys
class HelloWorldApp _kY5
6
{ "DlCvjc
public static void Main() rd,mbH[<C
{ %UQ?k:aWp|
System.Console.WriteLine("Hello, world!"); ~o/^=:*
} ,\IqKRcYU
} Oq[E\8Wn
#Y5I_:k
4{vd6T}V!
COBOL \PLV]%3,
IDENTIFICATION DIVISION. b<F 4_WF
PROGRAM-ID. HELLO-WORLD. bf74 "
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ENVIRONMENT DIVISION. QhGg^h%6
HQ
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DATA DIVISION. H~ZSw7!M8
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PROCEDURE DIVISION. li%-9Jd
DISPLAY "Hello, world!". &16bZw
STOP RUN. MtYP3:
^X&9"x)4
"qj[[LQ
Common Lisp lTB!yF.r|
(format t "Hello world!~%") wFJK!9KA8
,#E5 /'c`
%UQ{'JW?K
DOS批处理 ,oG"wgf
@echo off aydal9M
echo "Hello, world!" r6$=|Yto
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eYcx+BJ
Eiffel k_a'a)`$6
class HELLO_WORLD ob00(?;H
.u*].As=
creation 'u3+k.
make ?
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feature =+"'=o
make is ;yZ N
"r
local o 4b{>x
io:BASIC_IO KB"iF}\P0
do r{Q< a
!!io V^{!d}
io.put_string("%N Hello, world!") xI<dBg|]+
end -- make f
oVD+\~Y
end -- class HELLO_WORLD vUK>4^{J5
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,\M_q">npc
Erlang :7ngVc
-module(hello). # 0!IUSa
-export([hello_world/0]). J:lwq@u
{@#L'i|
hello_world() -> io:fwrite("Hello, World!\n"). 0l6iv[qu5w
A C^[3
pHvE`s"Ea
Forth vQ/\BN
." Hello, world!" CR yy} 0_
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Ifb(
2`I;f/Sd
Fortran 1!`768
WRITE(*,10) /a(zLHyz)
10 FORMAT('Hello, World!') e1loI8
STOP BP[U`
!
END .V3Dql@z"
be/1-=m
n`}&,UA$4
HTML N 9&@,3
<HTML> Mak9qaWqF>
<HEAD> BZ<z@DJp
<TITLE> Hello World! </TITLE> GzXP
</HEAD> kV rT?
<BODY> Mdrv/x{
<p>Hello World!</p> ,&?q}M
</BODY> tlERis
</HTML> 8-5jr_*
mG~y8nUtp
'r n;|K
HQ9+ y:OywIi(
H W{+0iAYnp
&&]!+fTZ\(
$M`;."
INTERCAL ++!E9GU{
PLEASE DO ,1 <- #13 'TrrOq4
DO ,1 SUB #1 <- #238 G
r|@CZq
DO ,1 SUB #2 <- #112 YB{E=\~
DO ,1 SUB #3 <- #112 mY8=qkZE
DO ,1 SUB #4 <- #0 ePRM v
DO ,1 SUB #5 <- #64 3t8H?B12ow
DO ,1 SUB #6 <- #238 /Z "
4[
DO ,1 SUB #7 <- #26 O|&TL9:
DO ,1 SUB #8 <- #248 D
Ok^ON
DO ,1 SUB #9 <- #168 Hs}"A,V
DO ,1 SUB #10 <- #24 ]A]E)*
DO ,1 SUB #11 <- #16 70
UgK E
DO ,1 SUB #12 <- #158 RpK,ixbtA+
DO ,1 SUB #13 <- #52 7 3z
Y^x
PLEASE READ OUT ,1 9H}iX0O
PLEASE GIVE UP ~}0hN]*G
K^vp(2
-mHhB(Td'
Java [a)~Dui0@\
public class Hello +R#`j r"
{ ptcLJ]+)
public static void main(String[] args) 8*#][wC2
{ f76|
System.out.println("Hello, world!"); 6>BDA?
} kw^Dp[8X
} Eb[H3v48,
D^s0EW-E
;]ShC\1
JSP uP=_-ZUW
<% e3={$A h
out.print("Hello, world!"); Z^`=!n-V
%> g}
~<!VpX
3:8nwt
4Eh BpTg
MIXAL fI
d)
TERM EQU 19 the MIX console device number ,c7u
ORIG 1000 start address khN:+V|
START OUT MSG(TERM) output data at address MSG 9h38`*Im;
HLT halt execution u4#~
i0@
MSG ALF "MIXAL" yFU2'pB
ALF " HELL" @oqi@&L'C
ALF "O WOR" /-K dCp~
ALF "LD " y5Wqu9C\Io
END START end of the program 0"<;You
YTjuSV
CAFE}|
Nuva aH PSnB&
<..直接输出..> ]b~2Dap
Hello, world! YV3TxvXMR
1yaIV+_y/
<..或者..>
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V0'p1J tD
<. .FbZVY c]
// 不带换行 8X
?GY8W:
? "Hello, world!" :
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,Z*3,/a
// 或者 @2~O^5[>
0o=6A<#x
// 带换行 !Zyx$2K
?? 'Hello, world!' y|+~>'^JR
.> p]V-<
?`
eYWZ">
9{UP)17
OCaml ptWG@"j/b
let main () = /,!7jF:
print_endline "Hello world!";; n#^?X
H8<7#
:&1=8^B Y
Pascal nA_
zP4
program Hello; %hQMC'c
begin '^F|k`$r
writeln('Hello, world!'); \;B$hT7z*
end. SCh7O}
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%$Jqt
Perl V:(w\'wm
#!/usr/local/bin/perl l\sS?
print "Hello, world!\n"; (@WDvgi(
.i3lG(
YG
6h:?u4
PHP (w#slTFT
<?php 5y[b8mur
print("Hello, world!"); LA;V}%y?
?> ~^%0V<*-}
K?FX<PT
pRrqs+IJZ\
Pike wHt#'`5
#!/usr/local/bin/pike KT
lP:pB;
int main() *m| t=9E
{ D*XZT{1g
write("Hello, world!\n"); |>IUtUg\
return 0; 0?6If+AC
} Ukh$`q}
ER;lkF`RF
/H%<oAjp6
PL/I \2].|Mym
Test: procedure options(main); N
o_$!)J.
declare My_String char(20) varying initialize('Hello, world!'); ~`~%(DA=
put skip list(My_String); z)ft3(!
end Test; gI^L
9jE7
o%/-5-
?`N57'iPb
Prolog g:uvoMUD
goal ?ae[dif
write("hello,world!"). v9t47>V
^)9MzD^_nV
.# !'c
Python Nl$gU3kL
#!/usr/local/bin/python ;o-\. =l
print "Hello, world!" "}'8`k+d
g+ >=C
P7'oXtW{o
REXX _C< 6349w
say "Hello, world!" 93E,
7]/dg*A )C
K9e~Wl<3
Ruby .])>A')r
#!/usr/bin/ruby ba(arGZ+{
print "Hello, world!\n" >-_:*/66!
OYszW]UMg
XD$%
Scheme )(:+q(m
(display "Hello, world!") 4|zdXS
(newline) b(PHZCy#
Sk6b`W7$
;mf4U85
sed (需要至少一行输入) %XEKhy
sed -ne '1s/.*/Hello, world!/p' 0On?{Bw
!G)mjvEe
/~o7Q$)-b
Smalltalk "*Lj8C3|n
Transcript show: 'Hello, world!' 8
3z'#
<ICZ"F`S
1A7 %0/K-]
SNOBOL ZNzR`6}
OUTPUT = "Hello, world!" 2Ueq6IuQ
END W]@gQ(Ef
1fz*SIjG
-M7K8
SQL `ir&]jh.A
create table MESSAGE (TEXT char(15)); L#
`lQ"`K
insert into MESSAGE (TEXT) values ('Hello, world!'); {l&Ltruhz
select TEXT from MESSAGE; l^DINZU@
drop table MESSAGE; A[u)wX^`f^
Vk MinE
l,*yEkU
Tcl Wmz q
#!/usr/local/bin/tcl E:u ReT
puts "Hello, world!" t{/hkXq]
,sO:$
(H&@u9K?a?
TScript qSFc=Wwc
? "Hello, world!" vVI6m{zYV
rPRrx-A
38[)[{G)Hv
Turing jrIA]K6
put "Hello, world!" 6OfdD.y
t9G}Yd[T
aQ(`6DQv
UNIX-style shell Z} c'Bm(
程序中的/bin/sh可改为您使用的shell _LJ5o_-N
Hu<p?mF#
#!/bin/sh BX@pt;$ek7
echo 'Hello, world!' q>^hoW2$C
k/df(cs
:=rA Yc3]
GUI FJO"|||Y'|
r8IX/ ,
Delphi oS~}TR:}
program HelloWorld; C@*%AY
uses ` *>V6B3
Dialogs; 7SBM^r}
begin /nc~T3j
ShowMessage('Hello, World!'); {*N^C@
end. cvKV95bn
aGpCNc{+
-@rxiC:Q
Nuva ?Q@L-H`
<. `'uUmyg
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) }ppVR$7]0
.> I^WIa"u_
Yx6hA#7I
RXBb:f
Visual Basic =g@R%NDNV
MsgBox "Hello, world!" {T&v2u#S
'或者 Q4X7Iu:
Print "Hello, world!" ,*7H|de7
L{=l#vu
\3r3{X
_<`
Visual FoxPro ^Z2kq2}a
? "Hello, world!" 2A*/C7
p"KU7-BfvC
UV4u.7y
X11 ~uB'3`x
用一个程序 eK9TAW
_().t5<
xmessage 'Hello, world!' i`+B4I8[
wy''tqg6
用C++和gtkmm 2 BBvZeG $Y
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#include <iostream> P<u"97@8a
#include <gtkmm/main.h> $_)=8"Sn
#include <gtkmm/button.h> p'&*r2_ram
#include <gtkmm/window.h> CN/IH
using namespace std; +3Y!xD?=
X/Y#U\
class HelloWorld : public Gtk::Window ET)>#zp+s
{ 8Y#bN*!
public: "V3}t4
HelloWorld(); -l
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virtual ~HelloWorld(); ~s#e,Kav"
protected: *zy'#`>
Gtk::Button m_button; o 7G> y#Y
virtual void on_button_clicked(); &!jq!u$(
}; fYBH)E
<qhBc:kc
HelloWorld::HelloWorld() : m_button("Hello, world!") f7J,&<<5w
{ cx^{/U?9}
set_border_width(10); Kd3QqVJBz1
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); C c*({
add(m_button); JRO$<
m_button.show(); t\r:E2
O
} Ax!Gu$K2o
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eE{
HelloWorld::~HelloWorld() {} EA|k5W*b
e7xj_QH
void HelloWorld::on_button_clicked() Q>8pP \ho
{ Rg* J}
cout << "Hello, world!" << endl; Km3&N
} zoP%u,XL
7
({=*
int main (int argc, char *argv[]) s&'BM~WI
{ by86zX
Gtk::Main kit(argc, argv); 1$ML #5+,
HelloWorld helloworld; mJC3@V
s
Gtk::Main::run(helloworld); PJgp+u<
} ~ y;y(4<
j7
d:v7+_
J!h^egP
Java '<@=vGsye
import java.awt.*; dTGA5c
import java.awt.event.*; 7zDiHac
^bUxLa[.
public class HelloFrame extends Frame B9X8
{ 7>i2OBkAhB
HelloFrame(String title) k\N4@UK
{ A+
0,i
super(title); d~*TIN8Ke~
} -2i\G .,J
public void paint(Graphics g) V5"HwN+`
{ dqe7s Zl!
super.paint(g); [vTMS2
java.awt.Insets ins = this.getInsets(); q0O&UE)6Y
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); lKKERO5+
} 'r+PH*Mr
public static void main(String args []) KJh,,xI>by
{ mm[SBiFO\
HelloFrame fr = new HelloFrame("Hello"); _+w/
pS`M
%f&< wC
fr.addWindowListener( .Q&rfH3
new WindowAdapter() I,O#X)O|i
{ /#S>sOg2xq
public void windowClosing(WindowEvent e) PlCc8Zy
{ !gP0ndRJ=
System.exit( 0 ); Yck~xt&]
} q\$6F)ha3
} cxP6-tV%
); c
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fr.setResizable(true); naNyGE7)
fr.setSize(500, 100); TJy4<rb
fr.setVisible(true); }$gmK
} #cKqnk
} j@1)K3Hga
fgF;&(b
lKV"Mh+6
Java Applet ULBg{e?l8
Java Applet用于HTML文件。 UQT'6* !
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HTML代码: ^O6*e]C$
2KI!af[I
<HTML> ]hTb@.
<HEAD> l@~LV}BI
<TITLE>Hello World</TITLE> 3HiFISA*
</HEAD> .mxTfP=9
<BODY> xiM&$<LpR
G&9#*<F$c
HelloWorld Program says: I&]G
ZR3nK0
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> %_gho
</APPLET> BC/_:n8O
7#-y-B]l
</BODY> :w-`PYJ%G
</HTML> Jb(Y,LO^
:q+N&j'3
Java代码: j9y3hQ+q
?IYY'fS"
import java.applet.*; $L}aQlA1JM
import java.awt.*; &