“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。 eQMY3/#
c: _l+CgeH
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》。 S]k<Ixvf
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以下是用不同语言写成的Hello World程序的几个例子: J.~$^-&!
Ada N8:vn0ww
with Ada.Text_Io; use Ada.Text_Io; Cfa?LgSz
procedure Hello is KpSHf9!&[
begin Y@Ty_j~
Put_Line ("Hello, world!"); [7$.)}Q-
end Hello; N'TL &]
2LXy$[)7
ny{|{a
汇编语言 qRTy}FU1
uZi]$/ic
x86 CPU,DOS,TASM )bqO}_B
MODEL SMALL y6;A4p>
IDEAL 7v#sr<
STACK 100H BsRxD9r
'r3I/qg*m
DATASEG zxXm9zrLo
HW DB 'Hello, world!$' )
_"`{2
\
VJ3
CODESEG XD9lox
MOV AX, @data )fv0H&g
MOV DS, AX l\a 0 k4
MOV DX, OFFSET HW *V5R[
MOV AH, 09H ga VWfG
INT 21H xoPpu
MOV AX, 4C00H %b0..Zz
INT 21H 98G>I(Cw%
END tZwZZ0]Z
CsXIq.9
;ZB[g78%R%
x86 CPU,GNU/Linux,NASM UZ v^3_,qz
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). e5C560
;Enter this into "hello.asm" then type: :4/RB%)"
;"nasm -f elf hello.asm" [.dF)I3
;"ld hello.o -o hello" mm'Pe4*
;"./hello" ux'!1mN
r:<UV^; 9l
section .data ;data section declaration X&pK#=
msg db 'Hello World!',0AH pGzzv{H
len equ $-msg ;string length ,{=#
WM~@/J
section .text ;code section declaration /{^Qup
global _start ;entry point (start of execution) WL+I)n8~
_start: mov edx,len ;string length pvD\E
mov ecx,msg ;string start _5y3<H<?
mov ebx,1 ;file handle: stdout z\{ y[3-
mov eax,4 ;sys_write *#w+*ywVZH
int 80h ;kernel system call C8%q?.nH=
Ak^g#^c*
mov ebx,0 ;return value ):31!IC
mov eax,1 ;sys_exit b+9M? k"
int 80h ;kernel system call +\2{{~_z
N\BB8<F
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x86 CPU,Windows,MASM32 QJjqtOf>
.386 h%9#~gJ})
.model flat,stdcall Hcq?7_)
option casemap:none l`4hWs\I
;Include 文件定义 a"4j9cO
include windows.inc .k|8nNj
include user32.inc ?zM]p"M
includelib user32.lib y}Oc^Fc
include kernel32.inc :>c33X}
includelib kernel32.lib FIDV5Y/f
;数据段 >$j?2,Za(V
.data .Ce30VE-
szCaption db 'A MessageBox!',0 ,C1}gPQ6<
szText db 'Hello,world!',0 |>Qj]
;代码段 1/:WA:]1,
.code ozy~`$;c
start: &A)AV<=>T
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK gi#bU
invoke ExitProcess,NULL +`>Tuz~
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 6w|s1!Bl
end start >|'u:`A
W_8N?coM
w3WBgH
AWK slaYr`u
BEGIN { print "Hello, world!" } ,4M7:=gf
Nr8#/H2f
^}fc]ovV
BASIC CB]#`|f
传统版BASIC(例如GWBASIC): ^{lcj
Ii FeO
10 PRINT "Hello, world!" PUZH[-:c
20 END NitsUg@<
Cdg/wRje
或在提示符输入: e:D8.h+&}
*")Req
?"Hello, world!":END [|.IXdJ!
<[Oe.0SGu
现代版BASIC(例如Quick BASIC): ia6%>^
6}4?,r
Print "Hello, world!" ?5-Y'(r
K%iWUl;
以下的语句在Quick BASIC中同样有效: B|XrjI?
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? "Hello,world!" ;+jz=9Q-
jMr [UZ
|C"(K-do
BCPL =z#6mSx|W
GET "LIBHDR" i[_B~/_
'-c
*S]: r
LET START () BE /6",#B}%b
$( |7ct2o~un
WRITES ("Hello, world!*N") xU<WUfS1
$) W>W b|W
HueGARS
;+C2P@M
Befunge |I \&r[J
"!dlrow olleH">v j.or:nF
, 4~<78r5m
^_@ c@f?0|66M
%n?_G|
;GQCq@)-
Brainfuck %]G'u
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< lgrD~Y (x
+++++++++++++++.>.+++.------.--------.>+.>. mk.1j x?l
6.5E
d-
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C X6 E^5m
#include <stdio.h> r c++c,=
5?l8;xe`{f
int main(void) 9B3+$uP
{ tBUn
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printf("Hello, world!\n"); k4T`{s}e
return 0; HE!"3S2S&+
} 0MpZdJ
=)b!M^=X-a
@~7y\G
C++ =1#obB
#include <iostream> m4\e`nl
D*=.;Rq
int main() yK+1C68A
{ eYtP396C|
std::cout << "Hello, world!" << std::endl; <cm(QNdcC
return 0; GY`mF1b
} /tdRUX
(}B3df
E)>.2{]C>
C++/CLI okm
}%#|
int main() O}s Mqh
{ P*6h$T
System::Console::WriteLine("Hello, world!"); B<$(Nb5<
} ~cv322N
L`3;9rO
!(gMr1}w
C# (C Sharp) R1C}S
class HelloWorldApp (jmF7XfU
{ >;Ag7Ex
public static void Main() \^o I3K0`
{ <#nt?Xn
System.Console.WriteLine("Hello, world!"); s,CN<`/>x
} x`:c0y9uG
} PQj 'D<G
)&6ZgRq
o'EJ,8
COBOL *q&^tn b
IDENTIFICATION DIVISION. ;{lb_du2:
PROGRAM-ID. HELLO-WORLD. E]O/'-
t7-6A
ENVIRONMENT DIVISION. lxsn(- j
O\J{4EB@.
DATA DIVISION. 'vwu^u?
Y6 <.]H
PROCEDURE DIVISION. j
D kBe-`
DISPLAY "Hello, world!". 6%^A6U
STOP RUN. P(%^J6[>
fK|P144
k*4!rWr0r&
Common Lisp %ZsdCQc{`
(format t "Hello world!~%") HT:V;?"
1K#%mV_
=f?vpKq40
DOS批处理 *qZBq&7tb
@echo off i&TWIl8
echo "Hello, world!" cY^'Cj
b($9gre>mI
QQ,V35Vp[
Eiffel +mPVI
class HELLO_WORLD 5pU/X.lc
6e>P!bo
creation j=dGNi)R
make 6$)FQ
U
feature 8'PK}heBU
make is 2#(dfEAy
local 6]r#6c%
io:BASIC_IO !o`riQLs>
do r]0>A&,
!!io ,!H`@Kl
io.put_string("%N Hello, world!") D"msD"
end -- make Q h{P>}
end -- class HELLO_WORLD !^'6&NR#K
]f~!Qk!I7r
dv Vz#
Erlang )g?ox{Hol
-module(hello). ]JR2Av
-export([hello_world/0]). 1'!D
F%f)oq`B
hello_world() -> io:fwrite("Hello, World!\n"). _lDNYpv
m[CyvcF*u
B.C:06E5
Forth d#HlO}
." Hello, world!" CR x1h&`QUP
pAws{3(Q
2w}l!'ue
Fortran GG`j9"t4
WRITE(*,10) <naxpflom0
10 FORMAT('Hello, World!') iA<'i8$P
STOP R=<%!
END fK _uuw4
'#C5m#v
_T_6Yl&cf)
HTML `mH]QjAO
<HTML> v\@pZw=x
<HEAD> 6zi 5#23
<TITLE> Hello World! </TITLE> (tyky&$!
</HEAD> GExr] 2r
<BODY> kl1/(
<p>Hello World!</p> 34QW^{dgE
</BODY> I7W`\d)
</HTML> g[*"LOw
xI_0`@do
0NK|3]p
HQ9+ ~Ajst!Y7=
H GYg.B<Q.
({zWyl
UxxX8N
INTERCAL cm0$v8
PLEASE DO ,1 <- #13 @+0dgkJ
DO ,1 SUB #1 <- #238 Cmp5or6d
DO ,1 SUB #2 <- #112 =W&m{F96
DO ,1 SUB #3 <- #112 ~{$c|
DO ,1 SUB #4 <- #0 M0g=gmau
DO ,1 SUB #5 <- #64 / ykc`E?f
DO ,1 SUB #6 <- #238 -u7NBtgUh
DO ,1 SUB #7 <- #26 XG!6[o;
DO ,1 SUB #8 <- #248 ]j!pK4
DO ,1 SUB #9 <- #168 mMvAA;
DO ,1 SUB #10 <- #24 %LM6=nt
DO ,1 SUB #11 <- #16 L?Ys(a"k
DO ,1 SUB #12 <- #158 ~MP |L?my
DO ,1 SUB #13 <- #52 CG95ScrX
PLEASE READ OUT ,1 E0x\h<6W~
PLEASE GIVE UP F9Af{*Jw?x
4K\o2p?4
!9{UBAh
Java x]@z.Yj
public class Hello Qea"49R
{ F2\&rC4v
public static void main(String[] args) t(dVd%
{ /OYa1,
System.out.println("Hello, world!"); 6$0<&')Yb
} OwEu S#-
} tJ7F.}\;C
PD^G$LT
Y9gw
('\w
JSP I:HrBhI)wP
<% 4AKr.a0q
out.print("Hello, world!"); 1szObhN-l
%> Z\]{{;%4b7
)&O6d .
R(*t1R\
MIXAL RO|8NC<oj
TERM EQU 19 the MIX console device number -Lq2K3JHyn
ORIG 1000 start address V1,/qd_
START OUT MSG(TERM) output data at address MSG g*(z.
HLT halt execution LuHRB}W
MSG ALF "MIXAL" &2U%/JqY
ALF " HELL"
WzoI0E`
ALF "O WOR" pF7N = mO
ALF "LD " <f`n[QD2z
END START end of the program G"m?2$^-A
`qYiic%
$2,tT;50g
Nuva e&2,cQRFV
<..直接输出..> Te[v+jgLY,
Hello, world! E
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[& Z-
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<..或者..> 1r};cY6
KK5;6b
<. fm@Pa} ,
// 不带换行 z9g ++]rkJ
? "Hello, world!" U[|5:qWs
3tCTPZy
// 或者 tjwnFqI
Q"B8l[
// 带换行 Yku6\/^
?? 'Hello, world!' 6PYm?i=p?
.> z HvE_-
[^?i<z{0C
Z'>UR.g
OCaml ;HH%OfQq
let main () = `^,E4Q y
print_endline "Hello world!";; oH+PlL
XI ;] c5
t$%<eF@w
Pascal }^0'IAXi
program Hello; %#rtNDi
begin |!9xL*A
writeln('Hello, world!'); J4"A6`O
end. ?O+.
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V8):!
Perl uS,?oS
#!/usr/local/bin/perl
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print "Hello, world!\n"; (oR~%2K
38T]qz[Sn
l`N4P
PHP )DhE~
<?php ;"u,G!
print("Hello, world!"); W^h,O+vk
?> tM;cvc`/
A_\Jb}J1<
%3~miP
Pike qR!ZtJ5j
#!/usr/local/bin/pike [uHU[
sG
int main() b@&uwS v
{ ~] V62^0
write("Hello, world!\n"); gm2|`^Xq$
return 0; _S7?c^:~
} 87[ ,.W
G![d_F"e
Y,v9o
PL/I B )[RIs
Test: procedure options(main); T0")Ryu
declare My_String char(20) varying initialize('Hello, world!'); 3o[(pfcU
put skip list(My_String); eOiH7{OA,
end Test; m3Wc};yE*Q
W{.:Cf9
=DfI^$Lr:
Prolog zN!yOlp5
goal ,hu@V\SKv
write("hello,world!"). HZ%V>88
bR)P-9rs
u &1M(~Ub=
Python u9|Eos i
#!/usr/local/bin/python ']eN4H&=?}
print "Hello, world!" 2F`#df
-%Vh-;Ie(
d@g2 9rs
REXX H390<`
say "Hello, world!" Be]z @E1x
[n| }>
oNe:<YT
Ruby iB(?}SaAZ
#!/usr/bin/ruby w-ald?`
print "Hello, world!\n" lAM)X&}0
v5L+B`~
H[p~1%Lq
Scheme Ar~/KRK
(display "Hello, world!") esA^-$
(newline) S$hxR
I+;e#v,%U
(E@;~7L
sed (需要至少一行输入) hWbu
Z%
sed -ne '1s/.*/Hello, world!/p' { 22ey`@`h
+58^{_k+%
FS&QF@dtgf
Smalltalk 1aO(+](;
Transcript show: 'Hello, world!' -s2)!Iko&
*Vq'%b9
Qc-W2%
SNOBOL l<uI-RX"
OUTPUT = "Hello, world!" Uz,P^\8^$
END Y\_mqd
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F/lL1nTdK
SQL CHv
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create table MESSAGE (TEXT char(15)); FT~c|ep.
insert into MESSAGE (TEXT) values ('Hello, world!'); M !"Q7>d
select TEXT from MESSAGE; mfI[9G
drop table MESSAGE; Bf00&PE;
;kZD>G8
u`Nrg<
Tcl ";(m,if-
#!/usr/local/bin/tcl qXq#A&
puts "Hello, world!" nbP}a?XC
:KvZP:T
&$CyT6mb^
TScript V.u^;gr3
? "Hello, world!" *!"T^4DEg
> `eo 0
faLfdUimJ
Turing Q+K]:c
put "Hello, world!" O}cfb4"
_){u5%vv
|tI{MztJ"c
UNIX-style shell {@7UfJh>
程序中的/bin/sh可改为您使用的shell I:=!,4S;
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#!/bin/sh "gI-S[
echo 'Hello, world!' E#m^.B-}
YK8l#8K
gM1:*YK
GUI
A ;`[va
CpN*1s})d
Delphi XU}i<5
program HelloWorld; YGChVROG~
uses
!vl1#@
Dialogs; bupW*fD:
begin sOWP0xY
ShowMessage('Hello, World!'); wd|^m%
end. K[noW
"N%W5[C{
s!YX<V
Nuva *B&i `tq
<. N/{=j
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) MJe/ \
.> ?cz7s28a
rS\mFt X
8sDw:wTC
Visual Basic X%*BiI
MsgBox "Hello, world!" fvTp9T\f3
'或者 ]OKKR/:
Print "Hello, world!" J^` pE^S
)06. dZq\
C;ha2UV0H
Visual FoxPro O>rz+8 T
? "Hello, world!" t9W* N\
fF/;BSq'
8j&1qJx)
X11 O>X!78]#K
用一个程序 js)E:+{A,
'2|mg<Ft
xmessage 'Hello, world!' uh)f/)6
CD?b.Cxai
用C++和gtkmm 2 6S%KUFB+e
:5^5l
#include <iostream> H9VdoxKo
#include <gtkmm/main.h> TffeCaBv
#include <gtkmm/button.h> }/NL"0j+4
#include <gtkmm/window.h> :8)3t! A
using namespace std; u?g;fh6
$dt*
4n '
class HelloWorld : public Gtk::Window %7TG>tc
{ b7M )
public: 1?p:66WmR
HelloWorld(); ABtv|0K
virtual ~HelloWorld(); ) { "}bMf
protected: +Sv2'& B
Gtk::Button m_button; Sf`?j
virtual void on_button_clicked(); 2rP!]
}; zBrqh9%8e
i"!j:YEo
HelloWorld::HelloWorld() : m_button("Hello, world!")
G"yhu +
{ G\f:H%[5[
set_border_width(10); 'OYnLz`"6
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); , YE+k`:
add(m_button); ^jo*e,y:
m_button.show(); BXl
Y V"
} 3XjY
4NFvX4
HelloWorld::~HelloWorld() {} ]ao%9:P;
n)]u|qq
void HelloWorld::on_button_clicked() ug`Jn&x!
{ x2]chN
cout << "Hello, world!" << endl; jA%R8hdr_
} [py/\zkn
@q" #.?>s
int main (int argc, char *argv[]) L|2WTyMU
{ >Cr'dKZ}
Gtk::Main kit(argc, argv); HFj@NRE6
HelloWorld helloworld; a=^>A1=
Gtk::Main::run(helloworld); h7\16j
} h5H#xoCXp
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2;ogkPv '
Java 7tT L,Nxe
import java.awt.*; wAF#N1-k
import java.awt.event.*; r$d'[ZcX
l)
)Cvre+
public class HelloFrame extends Frame R^4
j0L
{ @JD!.3
HelloFrame(String title) 7bam`)n
{ 6x_D0j%^]
super(title); !Ie={BpzbZ
} 1,G f;mcQ
public void paint(Graphics g) { r8H5X
{ W(*?rA- PP
super.paint(g); Y5Z<uD
java.awt.Insets ins = this.getInsets(); T
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g.drawString("Hello, World!", ins.left + 25, ins.top + 25); pXxpEv
} 9d,2d5Y
public static void main(String args []) !='&#@7u
{ XM*%n8q7#N
HelloFrame fr = new HelloFrame("Hello"); ivl_=
UazUr=|e
fr.addWindowListener( <Dp[F|r
new WindowAdapter() Nf{tC9l
{ PHn3f;I
public void windowClosing(WindowEvent e) o{
\r1<D
{ KA0_uty/T
System.exit( 0 ); uQg&A`4
} F1zsGlObu}
} e~BUAz
); 8 =<&9TmE
fr.setResizable(true); Y)v_O_`
fr.setSize(500, 100); wd~!j&`a
fr.setVisible(true); 'St\$X
} m&r