“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。 1LFad>`
q%bFR[p<*
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》。 *:\[;69[
vS ( Y_6
以下是用不同语言写成的Hello World程序的几个例子: nQ'NS
Ada '% _K"rb
with Ada.Text_Io; use Ada.Text_Io; `"'u
mIz
procedure Hello is 5KbPpKpd
begin Q7`)&^
Hx
Put_Line ("Hello, world!"); @)MG&X
end Hello; jB9~'>JY
&B:L9^
rpEIDhHv
汇编语言 2T%sHp~qt
e6J>qwD?
x86 CPU,DOS,TASM 3bd`q
$
MODEL SMALL w&}<b%l
IDEAL vx6lud0k}
STACK 100H nIlx?(=pu
~f[;(?39xZ
DATASEG DdISJWc'`5
HW DB 'Hello, world!$' TqS s*as5
5s%e9x|kP
CODESEG cJ?,\@uuP
MOV AX, @data F W2x
MOV DS, AX 1foG*
MOV DX, OFFSET HW :SwA) (1
MOV AH, 09H H#X*OJ
INT 21H /J"fbBXwY
MOV AX, 4C00H !:xE
X~
INT 21H 7uUq+dp
END AW_ YlS
z<P?p
SG~HzQ\%
x86 CPU,GNU/Linux,NASM TXd6o=
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). V_^pPBa
;Enter this into "hello.asm" then type: [T'[7Z
;"nasm -f elf hello.asm" .`u8(S+
;"ld hello.o -o hello" Bk~lM'
;"./hello" %H_-`A`
>^W6'Q$P<
section .data ;data section declaration vEG7A$Z"
msg db 'Hello World!',0AH c9@3=6S/
len equ $-msg ;string length #u"@q< )
FP y}Wc*UA
section .text ;code section declaration 6]GHCyo
global _start ;entry point (start of execution) st.{AEv@
_start: mov edx,len ;string length t0xE
mov ecx,msg ;string start 5D-as9k*
mov ebx,1 ;file handle: stdout *Vb#@O!
mov eax,4 ;sys_write eMEKR5*-O
int 80h ;kernel system call :%28*fl
jL)Y'
mov ebx,0 ;return value
5Uhxl^c
mov eax,1 ;sys_exit A#Ga!a
int 80h ;kernel system call Pec40g:#F
uARkf'
N*PJ m6-
x86 CPU,Windows,MASM32 3,!IV"_
.386 vN]_/T+
.model flat,stdcall R:'&>.AUw
option casemap:none ,\\=f#c=
;Include 文件定义 <)_#6)z:
include windows.inc %PPy0RZ^
include user32.inc ncVt(!c,e
includelib user32.lib dB&<P[$+8
include kernel32.inc FKe/xz
includelib kernel32.lib ,T^A?t
;数据段 >#;_Ebl@
.data 2w~Vb0
szCaption db 'A MessageBox!',0 #;1RStb:zj
szText db 'Hello,world!',0 <JXHg,Q
;代码段 &{# 6Z
.code _BgWy#
start: b9wC:NgQx
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ]f`UflMO8
invoke ExitProcess,NULL GVf[H2%H
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sVnq|[ /
end start W<O/LHKHdn
<Vh5`-J
<Nloh+n=
AWK
t"~X6o|R
BEGIN { print "Hello, world!" } 1 K^-tms
{65YTt%
5,O:"3>c
BASIC ZOppec1D
传统版BASIC(例如GWBASIC): 9qzHy}A
)Fqtb;W=
10 PRINT "Hello, world!" x a\~(B.
20 END 23+JuXC6>
':
Ek3' L
或在提示符输入: RZ9_*Lq7+
YXF^4||j.c
?"Hello, world!":END 9Ns%<FRO@
;_ 1Rk&o!
现代版BASIC(例如Quick BASIC): |<1A<fU8a
uTl"4;&j
Print "Hello, world!" PVN`k, 4
J!Rqm!)q
以下的语句在Quick BASIC中同样有效: LR4W
n(n7"+B
? "Hello,world!" I;<__
l4I',79l
>r4BI}8SK<
BCPL u2':~h?l
GET "LIBHDR" c*(=Glzn
rc`I l{~k
LET START () BE !0Ak)Q]e'
$( A-^B?E
WRITES ("Hello, world!*N") hsK(09:J
$) ZXbq5p_
O|9Nl*rXz
q}E'x/s2m
Befunge UpiZd/K
"!dlrow olleH">v IG%x(\V-e
, Sl
\EPKZD
^_@ FELW?Q?k
,&@FToR
h,/3}
Brainfuck ,[_)BM
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< G 8tK"LC
+++++++++++++++.>.+++.------.--------.>+.>. !_dW
`
,z((?h,nm
e)L!4Y44K
C q #8z%/~k
#include <stdio.h> zR=g<e1xe
bDegIW/'w
int main(void)
~ihi!u%~}
{ S!iDPl~
printf("Hello, world!\n"); #
?u
bvSdU
return 0; rd X;
} o
7V&HJ[
5["n] i
Z]OX6G
C++ 0h('@Hb.K#
#include <iostream> lZ,$lZg9Z
y7z ,I
int main() MGo`j:0
{ %7Gq#rq
std::cout << "Hello, world!" << std::endl; R^K:hKQ
return 0; UyMlk
} X`]>J5
zHW&i~
)_l(WF.
C++/CLI 'E\qqE[;
int main() tK\$LZ
{ nxuR^6Ai
System::Console::WriteLine("Hello, world!"); H_l>L9/\
} E_xk8X~
5YiBPB")
|A H@W#7j
C# (C Sharp) ?xE'i[F @
class HelloWorldApp Gl T/JZ9
{ S2=x,c$
public static void Main() a7]Z_Gk
{ hg `N`O
System.Console.WriteLine("Hello, world!"); ,nw5 M.D_
} ]/mRMm9"3h
} Yp$@i20
c[?&;# feV
1fh6A`c
COBOL z2dW)_fU$
IDENTIFICATION DIVISION. !:D,|k\m
PROGRAM-ID. HELLO-WORLD. NE@P8pQ>
%1i *Y*wg
ENVIRONMENT DIVISION. .n}k,da@(
sgB|2cj;j
DATA DIVISION. l-'\E6grdH
ZgzYXh2
PROCEDURE DIVISION. Ak\"C4s
DISPLAY "Hello, world!". ZB,UQ~!Yr
STOP RUN. <yKyM#4X
;FjI!V
w`Rt "d_B
Common Lisp tQ2S*]"f
(format t "Hello world!~%") W6yz/{Rf
&KeD{M%
ZD8E+]+
DOS批处理 g^k=z:n3,
@echo off B=i%Z_r]w
echo "Hello, world!" ^Ov+n1,)
+AOpB L'
<)gTi759h)
Eiffel
&y7~
class HELLO_WORLD e/IVZmUn^
2-wgbC5
creation 6c[ L*1
make Sr6?^>A@t
feature ;BEX|wxn
make is }An;)!>(nF
local ${7s"IX
io:BASIC_IO ">R`S<W
do WQY\R!+
!!io z`|E0~{-
io.put_string("%N Hello, world!") jx];=IC3tt
end -- make [i]%PVGW
end -- class HELLO_WORLD ]Ai!G7s8P
YZ5[# E@l
fH_Xm :%
Erlang I8:G:s:
-module(hello). 'i8?]`
T
-export([hello_world/0]). V} t8H
J2$=H1-
hello_world() -> io:fwrite("Hello, World!\n"). R!_1 *H$
1++ Fs
atfK?VK#
Forth O}[){*GG=
." Hello, world!" CR _jk+$`[9PL
~*G}+Ur$2
z&A#d
Fortran O u{|o0
WRITE(*,10) j(Tk6S
10 FORMAT('Hello, World!') ?h ym~,
STOP $b"Ex>
END 8X=2# &)
h,2?+}Fn
1.z !u%2
HTML Qkg([q4
<HTML> C3 (PI,,
<HEAD> BlfW~l'mx
<TITLE> Hello World! </TITLE> c *Pt;m
</HEAD> )Z@hk]@?_[
<BODY> Th 5}?j7
<p>Hello World!</p> ]\J(
</BODY> D?9EO=
</HTML> @|Hx>|p
8BM[c;-{g`
;+VHi%5Z
HQ9+ {=kW?
H VI^~I;M^
-<q@0IYyi
=&;}#A%m
INTERCAL T`| >oX
PLEASE DO ,1 <- #13 V?z-Dt C
DO ,1 SUB #1 <- #238 )yv~wi
DO ,1 SUB #2 <- #112 >4AwjS}H
DO ,1 SUB #3 <- #112 coc:$Sr%
DO ,1 SUB #4 <- #0 ^p #bxN")
DO ,1 SUB #5 <- #64
1O@cev;
DO ,1 SUB #6 <- #238 hHqsI`7c
DO ,1 SUB #7 <- #26 0,[-4m
DO ,1 SUB #8 <- #248 ${, !L l7)
DO ,1 SUB #9 <- #168 m:5bb3
DO ,1 SUB #10 <- #24 L"V~MF
DO ,1 SUB #11 <- #16 x9H
qc9q
DO ,1 SUB #12 <- #158 Gjf1Ba
DO ,1 SUB #13 <- #52 %{";RfSVX%
PLEASE READ OUT ,1 ,koG*sn
PLEASE GIVE UP l`RFi)u~&
:<E\&6# oC
;WsV.n
Java fn\&%`U
public class Hello ~Uaz;<"j0
{ !EO
2
public static void main(String[] args) kpO+
{ +8V|
System.out.println("Hello, world!"); O6r.q&U
} ? 1b*9G%i
} 8]0?mV8iOE
eqWb>$
@NJJ
JSP ` oXL
<% jh.e&6
out.print("Hello, world!"); 1"HSM=p
%> v`u>;S_
7)v`l1
q
e;O Ox
MIXAL N`i`[ f
TERM EQU 19 the MIX console device number %c,CfhEV%&
ORIG 1000 start address 55|.MXzq
START OUT MSG(TERM) output data at address MSG {_*$X
HLT halt execution >{kPa|
MSG ALF "MIXAL" ~qmu?5
ALF " HELL" vD4<G{
ALF "O WOR" d9uT*5f
ALF "LD " 9w,u4q
END START end of the program Ry iS
;Ajy54}7
'QEQyJ0EB
Nuva ^,;8ra*h
<..直接输出..> \%:]o-+"I
Hello, world! +S>}<OE
yzmwNsu
<..或者..> 0_5j(
7u7 <"?v=
<. >c:- ;( k
// 不带换行 H(Q|qckj
? "Hello, world!" w*s#=]6
zE<G wVI~
// 或者 2wG4"
/Q[M2DN@
// 带换行 =D~RIt/D
?? 'Hello, world!' C:d$
.> #NLLlEE
jo8;S?+<|?
$C !Mk
OCaml Eq?d+s>
let main () = dd%-bI^
print_endline "Hello world!";; p~THliwd
6
bnuC
&OSyU4r
Pascal Nd4!:.
program Hello; j;b<oQH
begin 1z[GY RSt
writeln('Hello, world!'); y:+s*x6Vg
end. s%R'c_cGZ
-'!%\E;5
U1^R+ *yp
Perl `L=$,7`
#!/usr/local/bin/perl S4Vv _k-&
print "Hello, world!\n"; sZhl.[&zo
QWBQ0#L
\aO.LwYm;:
PHP ]xIfgSq
<?php [#R<Z+c
print("Hello, world!"); NCM&6<_
?> :Gz# 4k
zl!`*{T{
ly]n2RK
Pike ~|~j01#
#!/usr/local/bin/pike 8oj-5|ct
int main() H -,RzL/
{ k99ANW
write("Hello, world!\n"); Uwqm?]
return 0; a/wkc*}}/
} h}U\2$5
xBC:%kG~#
Ilc FW
PL/I 5Y&s+|
Test: procedure options(main); txwTJScg
declare My_String char(20) varying initialize('Hello, world!'); ZSTpA,+6
put skip list(My_String); ~xg1mS9d
end Test; e[@q{.
mTzzF9n"Y
Y(]&j`%
Prolog ,1YnWy*
goal #)BdN
write("hello,world!"). k+S 6)BQ7U
&,Xs=Lvmq
vx\h
Njb
Python h?:lO3)TL=
#!/usr/local/bin/python zAxwM-`
print "Hello, world!" q#RVi8('
ZK[S'(6q
}hFjl4`xa
REXX E5M*Gs
say "Hello, world!" ),-4\!7
iM Xl}3
nV0"q|0K;
Ruby {Z_Pry$6
#!/usr/bin/ruby I/s?]v
print "Hello, world!\n" 1&
k_&o
3a4 ]{
8F<Qc*'
Scheme X3:-+]6,d
(display "Hello, world!") ?~aM<rcZ
(newline) jz$)*Kdi*
N3nk\)V\E
R?Q@)POW
sed (需要至少一行输入) +*Cg2`
sed -ne '1s/.*/Hello, world!/p' 9k^;]jE
K`@GNT&
i%W,Y8\uf*
Smalltalk `C`_2y8
Transcript show: 'Hello, world!' h<9h2
|400N
+MK
T]nZ3EZ
SNOBOL 5U[;T]{)e
OUTPUT = "Hello, world!" )(&g\
END qx"?')+
O329Bkg
'sm+3d
SQL nYuZg6K
create table MESSAGE (TEXT char(15)); jK&kQ
insert into MESSAGE (TEXT) values ('Hello, world!'); x]k^JPX
select TEXT from MESSAGE; M)#R_(Q5{
drop table MESSAGE; Ox&g#,@h
R9yK"
}tU<RvT
Tcl %t\`20-1<
#!/usr/local/bin/tcl VbtFM=Dg
puts "Hello, world!" 2D
MH@U2
~2~KcgPsq
S[NV-)r=
TScript }d)>pH
? "Hello, world!" .l*]W!L]
j~"X`: =
fh
\<tnY
Turing h2KXW}y"4
put "Hello, world!" 6kjBd3
|J`YFv
u:N/aaU=
UNIX-style shell ^G#=>&,
程序中的/bin/sh可改为您使用的shell %.b)%=
;=Bf&hY&
#!/bin/sh -Tk~c1I#`
echo 'Hello, world!' b9OT~i=S|
y6;'?.Y1
Gz!72H
GUI -^;G^Uq6=
)j@k[}R#g
Delphi }{Lf 4|8
program HelloWorld; -b(:kAwStk
uses [/*854
Dialogs; |n=kYs
begin ,_Fq*6
ShowMessage('Hello, World!'); i[^?24~ c
end. Vk$zA<sw"
N:clwmo
KL0u:I(lWU
Nuva @dJ
s
<. m5zP|s1`['
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 89@89-_mC
.> 'oEFNC9V
GA6Z{U{XS
tB[(o%k
Visual Basic d+ih]?
MsgBox "Hello, world!" ,q/K&'0`
'或者 G+'MTC_
Print "Hello, world!" $K ,rVTU
2X)E3V/*
Z[AJat@H
Visual FoxPro E] t:_v
? "Hello, world!" J(M0t~RZ
ez86+
T[<llh'+
X11 eJ%~6c`@!
用一个程序 rem&F'x0V
*u7C){)gr[
xmessage 'Hello, world!' p0$K.f|
^
B{/Pv0y
用C++和gtkmm 2 z8>KY/c
jL%-G
#include <iostream> 1w+&Y;d|
#include <gtkmm/main.h> 5]p>&|Ud
#include <gtkmm/button.h> L|6c lGp
#include <gtkmm/window.h> JeUFCWm
using namespace std; aiw~4ix
nf/iZ &
class HelloWorld : public Gtk::Window %nOBs ln
{ HC4ad0Gs+{
public: >}u?{_s *0
HelloWorld(); ,A
=%!p+
virtual ~HelloWorld(); b\gl9"X
protected: '|4/aHU
Gtk::Button m_button; TR{8A^XhE8
virtual void on_button_clicked(); \#2,1W@
}; ?_W "=WpC
)R9>;CuC9?
HelloWorld::HelloWorld() : m_button("Hello, world!") Tr/wG
{ Q-O:L
set_border_width(10); +VDl"Hx
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Ej 'a
G
add(m_button); 1oj7R7
m_button.show(); WU#bA|Cf
} (rZq0*
w6R=r
n
HelloWorld::~HelloWorld() {} DWk'6;e4j
YV{^S6M
void HelloWorld::on_button_clicked() p5)A"p8"9,
{ y
@Y@"y
cout << "Hello, world!" << endl; 0gO2^m)W
} mkj`z
b
|m$ W
int main (int argc, char *argv[]) yW|yZ(7
{ 3$l'>v+5{
Gtk::Main kit(argc, argv); /
)5B
HelloWorld helloworld; >0@X^o
Gtk::Main::run(helloworld); "H%TOk7l
} t
~U&a9&Z
fn#b3ee
dWD9YIYf
Java }Ss#0Gee
import java.awt.*; Yq`r>g
import java.awt.event.*; #5G!lbH
[ "J
public class HelloFrame extends Frame l+R-lsj
{ E;VW6[M
HelloFrame(String title) ]4uIb+(S
{ rI;e!EW
super(title); vh?({A#>.E
} 09|d<
public void paint(Graphics g) dW8'$!@!!
{ .__X[Mzth3
super.paint(g); b*dRNu
java.awt.Insets ins = this.getInsets(); c0!bn b
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); :$/lGIz
} ;13lu1
public static void main(String args []) |;rjr_I
{ $Xz9xzOR
HelloFrame fr = new HelloFrame("Hello"); D\j1`
-U%wLkf|
fr.addWindowListener( G:u[Lk#6K
new WindowAdapter() nF
A7@hsm
{ \e'>$8%T
public void windowClosing(WindowEvent e) SAThY$)6
{ V%e'H>EC
System.exit( 0 ); YaSwn3i/@S
} v[m/>l2[P
} ZwO&G\A^
); n8zUL1:R
fr.setResizable(true); S5m1~fz
fr.setSize(500, 100); ~+3f8%
fr.setVisible(true); 6<]&T lS]
} <MvFAuAT
} f_D1zU^
/,E%)K;
Y/gVyQ(
Java Applet 1mI)xDi9
Java Applet用于HTML文件。 w4(DR?[nC
]#S1AvT
HTML代码: ,@Ed)Zoh
)_xM)mH
<HTML> #ye++.7WK
<HEAD> uO7Ti]H
<TITLE>Hello World</TITLE> \vFkhm
</HEAD> {v;Y}o-p
<BODY> A"_;.e`
; M"hX
HelloWorld Program says: B S b!{|]
O_F<VV*MFQ
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> `Ph4!-6#
</APPLET> aWe
H,A%
=B<g_9d4
</BODY> /wCP(1Mw
</HTML> L8 R|\Bx
$D9JsUij
Java代码: F P
mLost
3@ay9!Xq
import java.applet.*; YroKC+4"i
import java.awt.*; zUwz[^d<C
%I6iXq#
public class HelloWorld extends Applet )vuxy
{ Qo;$iLt
public void paint(Graphics g) jew?cnRmd
{ T=b5th}
g.drawString("Hello, world!", 100, 50); [(#ncR8B
} iCl,7$[*
} S'6(&"XCH
De4+4&
1!vR
8.
java script (O&