“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。 wIz<Y{HA=
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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》。 <ZxxlJS)6
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以下是用不同语言写成的Hello World程序的几个例子: (m4`l_
Ada 2Otd
with Ada.Text_Io; use Ada.Text_Io; W)ihk\E
procedure Hello is sH(4.36+
begin r.0IC*Y
Put_Line ("Hello, world!"); Q\ TawRK8
end Hello; /<vbv
3 :X3n\z
m+||t
汇编语言 >xws
gEbe6!; q3
x86 CPU,DOS,TASM a H'iW)
MODEL SMALL }(z[
rZ
IDEAL 6uW?xB9
STACK 100H ,J"6(nk
EFu2&P
DATASEG &WE| 9
HW DB 'Hello, world!$' vF0#]
A&rk5y;
CODESEG O7%<(
MOV AX, @data os|8/[gT
MOV DS, AX XYhN;U}Z
MOV DX, OFFSET HW at]=SA
MOV AH, 09H >{p&_u.r-
INT 21H mk8xNpk B
MOV AX, 4C00H }&Un8Rg"h
INT 21H sx IvL7jl
END j+"i$ln+s
^EWkJW,Yc
:#1{c^i%3
x86 CPU,GNU/Linux,NASM 0m7ANqE[Z
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 9{@[l!]W
;Enter this into "hello.asm" then type: m.e+S,i
;"nasm -f elf hello.asm" ]l7) F-v
;"ld hello.o -o hello" kg?[
;"./hello" R7}=k)U?d@
R)MWO5
section .data ;data section declaration %^f!= *
msg db 'Hello World!',0AH xDv$z.=Y
len equ $-msg ;string length ma[%,u`
D*BZp0x
section .text ;code section declaration u9My.u@-*%
global _start ;entry point (start of execution) A(G%9'T
_start: mov edx,len ;string length mIgc)"
mov ecx,msg ;string start gR}>q4b
mov ebx,1 ;file handle: stdout $#4Qv5}
mov eax,4 ;sys_write pQAG%i^mF
int 80h ;kernel system call _jg&}HM
u:AKp<'
mov ebx,0 ;return value xDU>y
mov eax,1 ;sys_exit 4^cDp!8
int 80h ;kernel system call iq2)oC_
'8\7(0$c
$51M'Qu
x86 CPU,Windows,MASM32 6t/nM
.386 P1KXvc}JGe
.model flat,stdcall X- 2 rC
option casemap:none a,g3/
;Include 文件定义 s\i:;`l:=5
include windows.inc |&OW_*l
include user32.inc |^9+c2
includelib user32.lib 5Z"IM8?
include kernel32.inc uvR9BL2=
includelib kernel32.lib JLo'=(
;数据段 zmd,uhNc:
.data )a"rj5~-
szCaption db 'A MessageBox!',0 .XDY1~w0
szText db 'Hello,world!',0 U$jw8I'.
;代码段 D#Qfa!=g
.code afrU>#+"
start: Bu|Uz0Y
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK eD5:0;X2
invoke ExitProcess,NULL ,p2BB"^_i
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> #yz5CWu
end start W <.h@Rz+
bW03m_<M<1
,{DZvif
AWK f}{ lRk
BEGIN { print "Hello, world!" } ms9zp?M
!_EL{ /ko
W,<L/ZKJ
BASIC 4Ufx,]
传统版BASIC(例如GWBASIC): ?4>uGaU\
#=@H-ZuD7
10 PRINT "Hello, world!" +/
s2;G
20 END rHe*/nN%*
[MLJs-*
或在提示符输入: >d#oJ?goX
YDh6XD<Z
?"Hello, world!":END R-odc,P=
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现代版BASIC(例如Quick BASIC): O`Ht|@[6
CUJP"u>8M
Print "Hello, world!" :eIPPh|\
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以下的语句在Quick BASIC中同样有效: kkWqP20q
1K(a=o[Ce
? "Hello,world!" S}fU2Wi
QY14N{]T\p
"s-e)svB
BCPL <3?T^/8
GET "LIBHDR" Ce&nMgd~
o=/Cje
LET START () BE Twqkd8[
$( !
C}t)R]^
WRITES ("Hello, world!*N") (EZ34,k'S
$) ?naPti1GX
p#-ov-znp
5vxKkk&i4l
Befunge !%w#h0(b
"!dlrow olleH">v H<tk/\C
, <eWGvIEP[
^_@ $xx5+A%,
38Rod]\E
$7Sbz&)y3
Brainfuck si`{>e~`6P
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< @q=l H
*=
+++++++++++++++.>.+++.------.--------.>+.>. WY=RJe2
W40GW
{8L)Fw
C 31BN ?q
#include <stdio.h> 00DWXGt20o
[>`[1;a X
int main(void) mX@Un9k
{ *7`N^e
printf("Hello, world!\n"); O_}ZSB8"
return 0; -
0t
} XD1x*#
iC U[X&
wLa^pI4p ^
C++ bXN-q!
#include <iostream> &5*)r@+
T9
@^@l$
int main() 8 I'1~d%$
{ XTIRY4{
d
std::cout << "Hello, world!" << std::endl; lHYu-}TNP
return 0; R'E8>ee;^
} Y~RZf /`
7Pt*V@DHS
$D,m o2I
C++/CLI doR'E=Z4h
int main() tykA69X\W
{ pB
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n^
System::Console::WriteLine("Hello, world!"); 6{O#!o*g
} |
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tE)%*z@<Lt
4SG22$7 W
C# (C Sharp) C:tA|<b|
class HelloWorldApp KR
{ Kd_WN;l
public static void Main() )G(6=l*
{ YK#
QH"}
System.Console.WriteLine("Hello, world!"); #=WDJT:
} +MQvq\%tG
} 7f4R5c
S}"?#=Q.%O
>40B
Fxc
COBOL Q:LyD!at
IDENTIFICATION DIVISION. gbc^Lb
PROGRAM-ID. HELLO-WORLD. ^q"wd?((h
qA- ya6
ENVIRONMENT DIVISION. M/U$x /3K
&}Y_EHj}
DATA DIVISION. y$)gj4k/D
Q9K+k*?{N
PROCEDURE DIVISION. 0F'75
DISPLAY "Hello, world!". 9Ao0$|@b
STOP RUN. ~A8%[.({5
?KxI|os
Rl 4r 9
Common Lisp CvpqQ7&k7
(format t "Hello world!~%") ;F&wGe
H*QN/{|RU
~qNpPIrGr
DOS批处理 R|Ft@]
@echo off =#XsY,r
echo "Hello, world!" A!v-[AI[
CiP-Zh[gZ
SwQ.tK1p
Eiffel <!,q:[ee5
class HELLO_WORLD ,8(%J3J
MCma3^/1
creation H+zn:j@~L
make \Rn.ug
feature AK<ZP?0
make is x7e
local D} 0>x~
io:BASIC_IO :C42yQAP
do Y51XpcXQ
!!io PiB)pUYj
io.put_string("%N Hello, world!") }\u~He%
end -- make TJY$<:
end -- class HELLO_WORLD .<Z7K @
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xsRMF&8L
Erlang 3w )S=4lB
-module(hello). BO\l>\)Ir
-export([hello_world/0]). #f|-l$a)3a
o*n""m
hello_world() -> io:fwrite("Hello, World!\n"). y_"GMw
)EO/P+&
I#l9
Forth %9mCgHQ9
." Hello, world!" CR Kw'Dzz%kN
ZNB*Azi
+2oZB]GPL
Fortran 9BANCW"
WRITE(*,10) HkvCQ H
10 FORMAT('Hello, World!') X_
>B7(k
STOP V`69%35*@
END >1ZMQgCG
^F?H)[0
_0F6mg n
HTML 6o;lTOes
<HTML> r"fu{4aX
<HEAD> va8:QHdU
<TITLE> Hello World! </TITLE> .WL507*"Ce
</HEAD> w& RpQcV
<BODY> mQ%kGqs
<p>Hello World!</p> 3:Co K#
</BODY> w]yLdfi!
</HTML> l%Sz6
tzpGKhrk6
wX 41R]pF
HQ9+ 6X|KKsPzX
H 4v2(YJ%u
( kp}mSw
>\DXA)nc
INTERCAL qUtVqS
PLEASE DO ,1 <- #13 XQ(`8Jl&^
DO ,1 SUB #1 <- #238 D3.sR\Hxf
DO ,1 SUB #2 <- #112 %n}.E304
DO ,1 SUB #3 <- #112 oU~V0{7g
DO ,1 SUB #4 <- #0 '%RMpyK~
DO ,1 SUB #5 <- #64 1rPeh{SZ
DO ,1 SUB #6 <- #238 ^DZiz[X+|
DO ,1 SUB #7 <- #26 g8kw|BgnL
DO ,1 SUB #8 <- #248 /LSiDys
DO ,1 SUB #9 <- #168 >4EcV1y
DO ,1 SUB #10 <- #24 flLmZ1"
DO ,1 SUB #11 <- #16 [RpFC4W
DO ,1 SUB #12 <- #158 3SIB #"9
DO ,1 SUB #13 <- #52 r~s03g0
PLEASE READ OUT ,1 l"*>>/U k
PLEASE GIVE UP Tao lX*$5
_ux6SIyp`
jMp{
Java b!.# `.
public class Hello G|O"Kv6
{ ;
wHuL\
public static void main(String[] args) [ z$J
{ DBmcvC
System.out.println("Hello, world!"); *R~oA`
} =m/2)R{
} e9B,
L<QDC
n@mUQ6
JSP M3z7P.\G
<% ;?:,L
out.print("Hello, world!"); D[tGbk
%> %!.rP
Ne9
.wd
p`d:g
BZ
MIXAL S?3{G@!
TERM EQU 19 the MIX console device number k6Tpaf^
ORIG 1000 start address S'@"a%EV
START OUT MSG(TERM) output data at address MSG kT$4X0}
HLT halt execution *<0g/AL
MSG ALF "MIXAL" |d`?wm-
ALF " HELL" 2! 6Kzq
ALF "O WOR" y mE`V
ALF "LD " I(7gmCV
END START end of the program shn-Es*
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L0_=R;.<
Nuva dJ&s/Z/>E
<..直接输出..> b5)>h
Hello, world! `GDYL7pM(
(Iq\+@xE=
<..或者..> 33;|52$
^#t<ILUa
<. SQ1&n;M}f
// 不带换行 cEQa 6
? "Hello, world!" [c W
#&5\1Qu
// 或者 r=[}7N
9=}/t9k
// 带换行 &GZR-/
?? 'Hello, world!' O~Fk0}-
.> -"nYCF
G7=8*@q>:
a #0{tZd
OCaml L%8"d6
let main () = plIx""a^h
print_endline "Hello world!";; 'K"*4B^3
QA 9vH'
z"vgwOP su
Pascal )I$Mh@F
program Hello; S8cFD):q
begin ixH7oWH#
writeln('Hello, world!'); K*}j1A
end. W2B=%`sC
*Xnq1_K}
?-Z:N`YP
Perl ^R$dG[Qf
#!/usr/local/bin/perl k %rP*b*
print "Hello, world!\n"; e/3hb)#;
`&6]P :_qp
^KF'/9S
PHP S\rfR N
<?php v;8XRR:
print("Hello, world!"); lpM{@JC
?> UmuFzw^
fh3
6
$3Ia+O
Pike m{yON&y
#!/usr/local/bin/pike Yt'o#"R)
int main() sg2C_]i,H
{ &ivIv[LV
write("Hello, world!\n"); y$"L`*W
return 0; N{yZk"fq:6
} qprOxP
r
[P,nW/H
p[GyQ2k)
PL/I ?C{N0?[P-
Test: procedure options(main); ZM.g+-9
declare My_String char(20) varying initialize('Hello, world!'); f$'D2o, O
put skip list(My_String); }>:X|4]
end Test;
5~F0'tb|}
!R@4tSu
f*~fslY,o
Prolog Ye6O!,R
goal *~L]n4-
write("hello,world!"). y_&XF>k91
X9j+$X\j
=R"tnjR
Python 5S?yj
#!/usr/local/bin/python jYF3u0
)
print "Hello, world!" 5=986ci$U
AVWrD[ wD2
IA4(^-9
REXX *2MTx
say "Hello, world!" A&'%ou
&O,$l3 P
ZB%~>
Ruby T1&H!
#!/usr/bin/ruby :JIPF=]fc
print "Hello, world!\n" *ZGN!0/
0}V'\=F454
do,X{\
Scheme LfApVUm
(display "Hello, world!") DPx,qM#h5O
(newline) J;`~
!g
A{%;Hd`0/
-`UlntEdZ:
sed (需要至少一行输入) [
_$$P*
sed -ne '1s/.*/Hello, world!/p' Hv\*F51p=
Y ckbc6F
<k6xScy$}
Smalltalk ]IV;>94[
Transcript show: 'Hello, world!' MvmP["%J4_
~B@o?8D]
R2`g?5v
SNOBOL (^9M9+L[i
OUTPUT = "Hello, world!" ;I'/.gW;{
END 9iCud6H,h
6%#'X
tV9C33
SQL a)Ek~{9
create table MESSAGE (TEXT char(15)); I>#ChV)(#
insert into MESSAGE (TEXT) values ('Hello, world!'); <UdD@(iZ#
select TEXT from MESSAGE; ~S!kn1&O
drop table MESSAGE; &:*+p-!2<
%#a%Luq
Hrnql
Tcl j.}V~Sp*
#!/usr/local/bin/tcl Nk4_!
puts "Hello, world!" \k_3IP?o=
!ei20@
fZfiiE~7J
TScript 5qEdN
? "Hello, world!" F`.7_D
oZ[ w
55b |zf
Turing m!g8@YI
put "Hello, world!" Q{hOn]"
n0pe7/Ai
VBJ]d|
UNIX-style shell ,
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程序中的/bin/sh可改为您使用的shell qu+2..3
vP?S0>gh
#!/bin/sh YO0x68
echo 'Hello, world!' 66^t[[
s.)w
A`&&
T+h{Aeg
GUI FF~4y>R7u
neFno5d j
Delphi 4>C=:w
program HelloWorld; E}/|Lja
uses b'5pQ2Mq
Dialogs; {VG[m@
begin 6CRPdLTDf
ShowMessage('Hello, World!'); <h51KPo^P
end. 9[E$>o"%
c[lob{,
Ki6.'#%7
Nuva NV4W2thYo
<. >%dAqYi $
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ibs"Iv34
.> }zxh:"#K
{; cB?II
WC*:\:mh
Visual Basic e*6` dz@
MsgBox "Hello, world!" G%jJ>T4
'或者 Q8cPKDB
Print "Hello, world!" VDjIs UUX
E*CQG;^=N
!BuJC$
Visual FoxPro ?Hxgx
? "Hello, world!" q.[[c
A!Ct,%
[W=S8>
X11 6_K#,_oZ
用一个程序 aEdJ ri
b\m(0/x
xmessage 'Hello, world!' kdPm # $-
w!w _`7[
用C++和gtkmm 2 6FIoWG"x
P\6T4s
#include <iostream> ^GaPpm
#include <gtkmm/main.h> qgsE7 ]
#include <gtkmm/button.h> T KL(97)<
#include <gtkmm/window.h> [mzF)/[_2
using namespace std; Le:mMd= G
<L
( =
class HelloWorld : public Gtk::Window y"L`bl A9}
{ O[p^lr(B7
public: 0+y~RTAVB
HelloWorld(); ,bp pM
virtual ~HelloWorld(); <O)X89dFM
protected: u4M2Ec
Gtk::Button m_button; C{i;spc!bi
virtual void on_button_clicked(); =&:f+!1$
}; B%:9P
YGV#.
HelloWorld::HelloWorld() : m_button("Hello, world!") m&~Dj#%(w
{ @mRrA#E#{
set_border_width(10); aa%&&
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); #L=
eK8^e
add(m_button); [d~bZS|(T(
m_button.show(); (Cd{#j<
} z "$d5XR
!Fg4Au
HelloWorld::~HelloWorld() {} EQOP?>mWx!
p't:bR
void HelloWorld::on_button_clicked() 4FE@s0M,
{ >AX~c
jo
cout << "Hello, world!" << endl; ;(0$~O$3u
} AD%D ,l
Dzjt|U0ru9
int main (int argc, char *argv[]) \j})Kul
{ _ u|FJTk
Gtk::Main kit(argc, argv); c^bk:=uj
HelloWorld helloworld; H?(SSL
Gtk::Main::run(helloworld); KPd C9H
} "zIq)PY
KW7?: x
ZMMo6;
Java .A!0.M|
import java.awt.*; ZWhmO=b!
import java.awt.event.*; tvH\iS #V
D<3V#Opw
public class HelloFrame extends Frame ie~fQ!rf
{ h k!,
HelloFrame(String title) QT= ,En
{ .0fh>kQ
super(title); hB}h-i(u
} ;,vL
public void paint(Graphics g) P9TBQW2G{
{ ^0tf1pV2
super.paint(g); O][Nl^dl
java.awt.Insets ins = this.getInsets(); 3AQ>>) T~
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); =_m9so
} `=}UFu
public static void main(String args []) K7xWE,y
{ $FusDdCv3
HelloFrame fr = new HelloFrame("Hello"); d
O46~
|*c\6 :
fr.addWindowListener( jy(+
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new WindowAdapter() mh#FYSp
{ KA-/k@1&
public void windowClosing(WindowEvent e) "`i:)E t
{ ?9gTk
\s?R
System.exit( 0 ); d1TdH s\
} Jg|cvu-+
} mhi90J c
); pjHRV[`AP
fr.setResizable(true); D_n}p8blT
fr.setSize(500, 100); ZAX0n!db3
fr.setVisible(true); w0j/\XN2s
} yB4H3Q )
} p;u 1{
./&zO{|0]
,s><kHJ
Java Applet K%(XgXb(</
Java Applet用于HTML文件。
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#Fl
T~o{woq}g
HTML代码: B&i0j5L
V@_-H
gg
<HTML> (e8G
(
<HEAD> ]Q4PbW
<TITLE>Hello World</TITLE> lTr*'fX
</HEAD> a\{1UD
<BODY> PwB g
8L-4}!~C
HelloWorld Program says: "<w2v'6S
M .)}e7
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> ~3bZ+*H>
</APPLET> h^A3 0f_x
pFJQ7Jlx
</BODY> )jlP
cO-
</HTML> x9)aBB
O b8B
Java代码: sCF40AoY&
%h" qMs S
import java.applet.*; {+"g':><
import java.awt.*; Ki/'Ic1
iO*`(s
public class HelloWorld extends Applet &