“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。 Ap{p_~~iJ
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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》。 I65W^b4y
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以下是用不同语言写成的Hello World程序的几个例子: T\VKNEBo
Ada 0Z{f!MOh
with Ada.Text_Io; use Ada.Text_Io; #MbkU])
procedure Hello is VFj}{Y
begin 'a`cK;X9F
Put_Line ("Hello, world!"); P".CZyI-i
end Hello; 3?F*|E_
K]{Y >w
=ILE/pC-|
汇编语言 Wm{Lg0Nr
B zmmE2~*
x86 CPU,DOS,TASM @7Oqp-
MODEL SMALL p0jQQg
IDEAL |kPjjVGF{
STACK 100H M<R3Jz T
K!c "g,S
DATASEG u]K&H&AxT
HW DB 'Hello, world!$' ztcV[{[g
Cku#[?G
CODESEG \&K{v#g~
MOV AX, @data &DQyJJ`k
MOV DS, AX nKI]f`P7
MOV DX, OFFSET HW WZ\bm$
MOV AH, 09H A}Q6DHh26
INT 21H m5c?A+@fZ
MOV AX, 4C00H &M p??{g
INT 21H -?_#Yttu
END \$.8iTr@
-][~_Hd{
$#VE C0
x86 CPU,GNU/Linux,NASM cZB?_[Cp
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 6'YT3=
;Enter this into "hello.asm" then type: N8hiv'3
;"nasm -f elf hello.asm" r%`g` It
;"ld hello.o -o hello" 0w M2v[^YO
;"./hello" lyY\P6
X
hk6(y?#
section .data ;data section declaration ~m:oJ+:O
msg db 'Hello World!',0AH [Dr'
len equ $-msg ;string length 0, b.;r
&PQhJ#YG
section .text ;code section declaration ;gS)o#v0
global _start ;entry point (start of execution) S T#9auw
_start: mov edx,len ;string length sIUhk7Cd8
mov ecx,msg ;string start L|B/'
mov ebx,1 ;file handle: stdout <v&L90+s\;
mov eax,4 ;sys_write O;zq(/,-l
int 80h ;kernel system call
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~quof>
mov ebx,0 ;return value f4%Z~3P
mov eax,1 ;sys_exit RT+pB{Y
int 80h ;kernel system call 0R2KI,WI
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ltQo_k
x86 CPU,Windows,MASM32 p**Sd[|
.386 #)}K,FDd
.model flat,stdcall N>pTl$\4
option casemap:none QZwUv<*
;Include 文件定义 olm0O (9
include windows.inc hn`yc7<}(u
include user32.inc Q$Q>pV;uH
includelib user32.lib wh Hp}r
include kernel32.inc \#50;
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includelib kernel32.lib ?04jkq&
;数据段 mafnkQU
.data rY?]p Mp
szCaption db 'A MessageBox!',0 YR'dl_
szText db 'Hello,world!',0 o#Gf7.E8
;代码段 PiwMl)E|!
.code
Vs1H)T%
start: 83(-/y
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ZVX1@p
invoke ExitProcess,NULL As{Q9o5j/
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Z= +Tw!wR>
end start 4h*c{do
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H*.v*ro9_
AWK "xI70c{
BEGIN { print "Hello, world!" } }HCt=W`
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BASIC O#_\@f#[
传统版BASIC(例如GWBASIC): A!$;pwn0
/4I9Elr
10 PRINT "Hello, world!" 7+NBcZuG9
20 END uQhI)
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或在提示符输入: 49o /S2b4z
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?"Hello, world!":END /Moyn"Kj{
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现代版BASIC(例如Quick BASIC): :R'={0Jg
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Print "Hello, world!" pP-L{bT
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以下的语句在Quick BASIC中同样有效: |4C5;"P c
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? "Hello,world!" %j o,Gv
GU0[K#%
:@b=;
BCPL -5b#w"^w^
GET "LIBHDR" tjLG$M1z`
{zI>"%$u
LET START () BE 'F%h]4|1
$( 3o2x&v
WRITES ("Hello, world!*N") lqcPV) n
$) (j(hr'f
_<6E>"*m
:-Wh'H(
Befunge b:PzqMh{G
"!dlrow olleH">v jL{k!V`s
, V
7oE\cxr
^_@ U6F7dT
d"=)=hm!
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Brainfuck `i
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++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Doe:m#aNj
+++++++++++++++.>.+++.------.--------.>+.>. uovSe4q5q
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C |&MOus#v
#include <stdio.h> t=\
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lot;d3}
int main(void) y5j ;Daq
{ k]9y+WC2
printf("Hello, world!\n"); @dn&M9Z
return 0; Byh!Snoe
} gSHN,8.
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\('WS[$2
C++ GBTwQYF
#include <iostream> Z kBWVZb
:7*9W|e
int main() BxiR0snf0q
{ jItVAmC=i
std::cout << "Hello, world!" << std::endl; \.?'y71
return 0; Q yhu=_&
} F9>"1
qN^]`M[ BY
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C++/CLI },;Z<(
int main() t^=S\1"R\
{ y,6KU$G
System::Console::WriteLine("Hello, world!"); It]GlxMX
} L/)eNZ
I0N~>SpZ5
sT,*<^
C# (C Sharp) lSy_cItF
class HelloWorldApp )Wk&c8|y
{ 9RC:-d;;_
public static void Main() EgRuB@lw76
{ I/zI\PP,
System.Console.WriteLine("Hello, world!"); Y}h&dAr
} @o&UF-=MW(
} !FQS9SoO9
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z"*3p8N
COBOL +E+I.}sOB
IDENTIFICATION DIVISION. Z ?ATWCa
PROGRAM-ID. HELLO-WORLD. qykI[4
EiS2-Uh*TT
ENVIRONMENT DIVISION. keJ-ohv)
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DATA DIVISION. 6&btAwvOHx
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PROCEDURE DIVISION. S-79uo
DISPLAY "Hello, world!". }:\e"Bfv
STOP RUN. &-KQ
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XUK%O8N#9
y(j vl|z[
Common Lisp n>YgL}YZ?
(format t "Hello world!~%") _@Y17L.
7'7o^>
!
b{,vZhP-
DOS批处理 3V/f-l]X/
@echo off "R[6Q ^vw
echo "Hello, world!" 5 HN,y
ze`qf%
N8Un42
Eiffel LufZ,
class HELLO_WORLD ?xt${?KP
nz`"f,
creation %sS7o3RW\
make (N{
feature mZ.E;X& ,*
make is {#l@9r%
local 30h1)nQ$h}
io:BASIC_IO BgwZZ<B
do 9-?kamA
!!io &uJ7[m19z
io.put_string("%N Hello, world!") F:-6Htmj
end -- make |bmc6G[
end -- class HELLO_WORLD gC/-7/}
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Erlang |9
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-module(hello). !B&1{
-export([hello_world/0]). LiD-su
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hello_world() -> io:fwrite("Hello, World!\n"). $]iRfXv,l!
)h(yh50
B
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Forth Gp))1b';
." Hello, world!" CR e7gWz~
}UHoa
3yIC@>&y(8
Fortran fpvzx{2
WRITE(*,10) hH@pA:`s
10 FORMAT('Hello, World!') HltURTbI
STOP .e2K\o
END lb`2a3W/
o8S)8_3
ZBfB4<M9xS
HTML g/m%A2M&aH
<HTML> tL@m5M%:N2
<HEAD> 5>[j^g+@
<TITLE> Hello World! </TITLE> $kk!NAW
</HEAD> 4S#q06=Xe
<BODY> :n<<hR0d
<p>Hello World!</p>
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</BODY> a0x/ ?)DO
</HTML> {piZm12q?
T1r^.;I:
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HQ9+ kT6EHuB
H c6)q(zz
+']S
K.jm>]'z4;
INTERCAL 5%6r,?/7KM
PLEASE DO ,1 <- #13 K|LS VN?K
DO ,1 SUB #1 <- #238 IT0*~WMZ
DO ,1 SUB #2 <- #112 tmI2BBv
DO ,1 SUB #3 <- #112 c/E6}OWA
DO ,1 SUB #4 <- #0 sGD b<
DO ,1 SUB #5 <- #64 &4O0}ax*Zm
DO ,1 SUB #6 <- #238 JMq00_
DO ,1 SUB #7 <- #26 FucLcq2Z
DO ,1 SUB #8 <- #248 L3-tD67oa
DO ,1 SUB #9 <- #168 ~V4&l3o
DO ,1 SUB #10 <- #24 X`k[ J6
DO ,1 SUB #11 <- #16 SggS8$a`
DO ,1 SUB #12 <- #158 =j1rw
DO ,1 SUB #13 <- #52 i;$'haK<
PLEASE READ OUT ,1 eqze7EY
PLEASE GIVE UP U8(Rye$
PDcZno?
&~7b-foCq
Java W@x
UR-}51
public class Hello zk@KuBLL
{ vWwnC)5
public static void main(String[] args) |0mVK`
{ AhARBgf<
System.out.println("Hello, world!"); /IC7q?avQN
} f9g#pyH4
} U/oncC5
FPu"/4v&
ODH@/
JSP v&B*InR?+
<% ~o+HAc`=v
out.print("Hello, world!"); B&`hvR
%> x.+}-(`W#~
8 JUUK(&Z
WKQVT I&A.
MIXAL 3~4e\xL
TERM EQU 19 the MIX console device number E
VBB:*q6
ORIG 1000 start address o~F @1
START OUT MSG(TERM) output data at address MSG $3sS&i<
HLT halt execution "Kz=ZC
MSG ALF "MIXAL" u4=j!Zb8}
ALF " HELL" \z<B=RT\
ALF "O WOR" s45Y8!c
ALF "LD " #"a?3!wr
END START end of the program Qc z7IA
~3.1.
'A
Dm6}$v'0
Nuva Ak$ghb
<..直接输出..> u|7d_3 ::
Hello, world! 5o5y3ibQ
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<..或者..> :xfD>K
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<. `av8|;
// 不带换行 DEaO=p|
? "Hello, world!" 0}c*u) ,
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// 或者 0CxQ@~ttl
5DfAL;o!
// 带换行 N
G1]!Vz5
?? 'Hello, world!' 9/RbfV[)
.> Ay!=Yk^~
S?%V o* Y
bh?Vufd%)
OCaml n\5` JNCb
let main () = pc5-'; n
print_endline "Hello world!";; EW1L!3K
~!'%m(g
Zbxd,|<|
Pascal 7ju7QyR
program Hello; !J[3U
begin %FQMB
writeln('Hello, world!'); J1Mm,LTO
end. KGkzE
f
5_n2
6z"fBF
Perl q,2]]K7y
#!/usr/local/bin/perl 3~BL!e,
print "Hello, world!\n"; !'B.ad
R5G~A{w0
q~r)B}
PHP F$ x@]
<?php }
O9q$-8!
print("Hello, world!"); ";9cYoKRY
?> }+QgRGQ
`ItMn&P
=+97VO(w]G
Pike |v}"UW(y
#!/usr/local/bin/pike rOB-2@-
int main() *4r
1g+0
{ WYwsTsG{_
write("Hello, world!\n"); Rs{L
return 0; 09 eS&J<R
} O:RPH{D
Q0!gTV
pQ*9)C
PL/I !~m)_Q5?~
Test: procedure options(main); +XJj:%yt
declare My_String char(20) varying initialize('Hello, world!'); 3ZU`}
put skip list(My_String); f/?#
1
end Test; -Uq I=#
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xqO'FQO%
Prolog A"\kdxC
goal X7{ueP#L
write("hello,world!"). LS Na
HW"|Hm$Y(
22`W*e@6h
Python 1s=M3m&H
#!/usr/local/bin/python RhnSQe
print "Hello, world!" X(?.*m@+TB
ln'7kg
={W;8BUV%^
REXX wZh&w<l'
say "Hello, world!" 782be-n
fr;>`u[;
'73dsOTIT
Ruby (i1FMd}G
#!/usr/bin/ruby
.rD@Q{e50
print "Hello, world!\n" :f ybH)*
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b~Op1p
Scheme 8*H-</ =
(display "Hello, world!") vJ7I
[Z
(newline) hewX)
X~sl5?
wRgmw
4
sed (需要至少一行输入) `Ff3H$_*
sed -ne '1s/.*/Hello, world!/p' 2w'Q9&1~
{xW?v;
VljAAt
Smalltalk wXMKQ)$(
Transcript show: 'Hello, world!' '~VKH}b
U>IllNd
'+?AaR&p?
SNOBOL ,u#uk7V
OUTPUT = "Hello, world!" 5:Pp62
END 4{(uw
XpdDIKMmE
?FVX &{{V
SQL =\B{)z7@6D
create table MESSAGE (TEXT char(15)); A`TVV
insert into MESSAGE (TEXT) values ('Hello, world!'); bvuoGG*
select TEXT from MESSAGE; ,3.E]_3xX
drop table MESSAGE; R5g-b2Lm
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M\
jA$g0>
Tcl 8V >j-C
#!/usr/local/bin/tcl 8;ke,x
puts "Hello, world!" WW{5[;LYiB
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~
yQ}$G
,x
TScript k<Z^93 S
? "Hello, world!" _7'9omq@
vp?87h
]|it&4l
Turing ;&q}G1
put "Hello, world!" +D[|L1{xb
9h>nP8
KtchKpv
UNIX-style shell 1uZ[Ewl]
程序中的/bin/sh可改为您使用的shell vH%AXzIA
mEfI2P)#|
#!/bin/sh seC]=UJh#>
echo 'Hello, world!' ']Gqa$(YC
RbzSQr>a\
_ui03veA1
GUI -G e5gQ=
Ig}G"GR
Delphi (+68s9XS7
program HelloWorld; 6!dbJ5x1
uses X1&Ug^
Dialogs; )Fx"S.Ok
begin [bk2RaX:i
ShowMessage('Hello, World!'); C,~wmS )@
end. #no~g(!o
T]-yTsto
?%%
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Nuva xI}o8G KQq
<. >/mi#Y6
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) I=o[\?u*_
.> hr_ 5D
4YDK`:4I~
Gdmh#pv
Visual Basic uPKq<hBI
MsgBox "Hello, world!" 1^XuH('
'或者 XI:8_F;Q
Print "Hello, world!" ^`~M f
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Ls{z5*<FM
Visual FoxPro
A]ZCQ49
? "Hello, world!" HeABU(o4
VN[C%C
LOQoi8j
X11 ZycV?ob8}
用一个程序 _a1 =?
JYuI~<:
xmessage 'Hello, world!' xxkUu6x#
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用C++和gtkmm 2 1{+x >Pv:
i)9}+M5
#include <iostream> #=F"PhiX`
#include <gtkmm/main.h> &7z79#1NS
#include <gtkmm/button.h> i; Cs,Esnf
#include <gtkmm/window.h> ]@X5'r"
using namespace std;
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.{sKEVK
class HelloWorld : public Gtk::Window f0p+l-iEv
{ Z0&^U#]
public: 8|^dM$
HelloWorld(); w1HE^
/
virtual ~HelloWorld(); [
[]'U'
protected: h/~:}Bof
Gtk::Button m_button; ^kZfE"iE2
virtual void on_button_clicked(); $jT&]p
}; r_C|gfIP
.N2yn`
HelloWorld::HelloWorld() : m_button("Hello, world!") 1Vq]4_09g1
{ s2f95<B
set_border_width(10); q-s! hiK
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); r/v'h@
add(m_button); M|!^ #!a(
m_button.show(); P^m+SAAB
} H.-jBFt}
dFY]~_P472
HelloWorld::~HelloWorld() {} Rs+rlJq
[MSLVTR
void HelloWorld::on_button_clicked() 50!/%
{ kN3 T/96
cout << "Hello, world!" << endl; z_%G{H+:l
} yMdEH-?/
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b
int main (int argc, char *argv[]) W: Rs 0O
{ !iKR~&UpAL
Gtk::Main kit(argc, argv); <viIpz2jh%
HelloWorld helloworld; ,w~0U
Gtk::Main::run(helloworld); ;>^oe:@
} -H1mKZDPP
JA W}]:jC
6OYXcPW'
Java {FzL@!||
import java.awt.*; p7(Pymkd
import java.awt.event.*; xdWfrm$;ZA
6BIP;, M=
public class HelloFrame extends Frame _^4\z*x
{ KTn,}7vZ
HelloFrame(String title) lB!`,>"c
{ *8}Y0V\s
super(title); Hw"ik6
} }.Eq_wP<
public void paint(Graphics g) `(A6uakd
{ %M8Egr2|0
super.paint(g); $ tf;\R
java.awt.Insets ins = this.getInsets(); wu?ahNb.`Y
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 9 tZ)#@\
} R"(rL5j
public static void main(String args []) %bf+Y7m
{ qGMM3a)Q
HelloFrame fr = new HelloFrame("Hello"); '!`%!Xg
kN uDoo]z
fr.addWindowListener( o?\)!_Z|
new WindowAdapter() \~xI#S@
{ )#-27Y
public void windowClosing(WindowEvent e) dDH+`;$.
{ tB.;T0n
System.exit( 0 ); a2W}Wb+
} #1R_*
Uh
} cT{iMgdI?
); %VYQz)yW
fr.setResizable(true); Du3OmXMk
fr.setSize(500, 100); >yvP[$]!6
fr.setVisible(true); Z :f0>
} $,08y
} C%d 4ItB >
Mq) n=M
lJ]r%YlF
Java Applet Q0~5h?V'
Java Applet用于HTML文件。 /H.QGPr
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HTML代码: 8)/i\=N3;
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<HTML> Wu)ATs}
<HEAD> m^zx&
<TITLE>Hello World</TITLE> #oMbE<//"
</HEAD> WO*yJ`9]
<BODY> FtN1ZZ"<*
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HelloWorld Program says: TRz~rW
k
3(P^PP8
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> /rp4m&