“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。 [=Qv?am
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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》。 .QwwGm
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以下是用不同语言写成的Hello World程序的几个例子: *{3&?pxx
Ada hYm$Sx(=
with Ada.Text_Io; use Ada.Text_Io; ;'^5$q
procedure Hello is EN
OaC
begin \tL9`RKpg
Put_Line ("Hello, world!"); G$hH~{Y$
end Hello; y^M~zOe
-68E]O
< 0S+[7S"
汇编语言 jt({@;sU[<
q(tdBd'o6
x86 CPU,DOS,TASM K|"97{*|2
MODEL SMALL UG)XA-ez
IDEAL qU ESN!
STACK 100H a'sa{>
Oy U[(
DATASEG BU\P5uB!V
HW DB 'Hello, world!$' %by8i1HR
kpxWi=y
CODESEG *k&yD3br-V
MOV AX, @data R-lB.9e#M
MOV DS, AX z]P=>w
MOV DX, OFFSET HW aSu6SU
MOV AH, 09H ifo^
M]v
INT 21H &C_0JyT
MOV AX, 4C00H d%IM`S;fh
INT 21H wi{qN___
END yrp;G_
Tt,<@U[/}
s)?=4zJ
x86 CPU,GNU/Linux,NASM J;?#Zt]`L
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). SV-M8Im73z
;Enter this into "hello.asm" then type: QG~4<zy
;"nasm -f elf hello.asm" _RzwE$+9
;"ld hello.o -o hello" 1M%'Xe7
;"./hello" 2(_+PQ6C=
b<]--\
section .data ;data section declaration ^|h5*Tb
msg db 'Hello World!',0AH )3W`>7>
len equ $-msg ;string length XiP xg[;
]h]| PdN
section .text ;code section declaration y)`f$Hl@1
global _start ;entry point (start of execution) -2)6QKh~D
_start: mov edx,len ;string length !/1aot^(
mov ecx,msg ;string start ]_8bX}_n
mov ebx,1 ;file handle: stdout u`%Kh_
mov eax,4 ;sys_write (A\X+S(
int 80h ;kernel system call g;N)K3\2
80i-)a\n
mov ebx,0 ;return value ]u;Ma
G=;
mov eax,1 ;sys_exit *$
int 80h ;kernel system call 9qhX\, h
^lF'KW$
s7x&x;-
x86 CPU,Windows,MASM32 8M{-RlR
.386 [2]Ti_
>D
.model flat,stdcall .XD.'S
option casemap:none u@(z(P
;Include 文件定义 &$\B&Hp@
include windows.inc E?L^L3s
include user32.inc 6qCRM *V
includelib user32.lib .@#GNZe
include kernel32.inc 'qhi8=*
includelib kernel32.lib r8o9C
;数据段 g{t)I0xm
.data r&^xg`i[z>
szCaption db 'A MessageBox!',0 h.A@o#x
szText db 'Hello,world!',0 RW4}n<
88
;代码段 \Lp|S:u
.code 3LxhQVx2
start: (?9 @nS
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK })I_@\q
invoke ExitProcess,NULL !B&OK&*
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> M
Y2=lT
end start a>3#z2#
;IN!H@bq
#84<aM
AWK )#^5$5
BEGIN { print "Hello, world!" } v/W\k.?q/
:h4Nfz(
wt8?@lJ"/
BASIC q 9cN2|:
传统版BASIC(例如GWBASIC):
]Wc:9Zb
1@xmzTC
10 PRINT "Hello, world!"
-tQi~Y[]
20 END H$M#+EfL
<Cbah%X
或在提示符输入: &, =Z
COV8=E~
?"Hello, world!":END GFq,Ca~
oxs0)B
现代版BASIC(例如Quick BASIC): _$&C$q$ 1y
Ukf4Q\@w
Print "Hello, world!" kOu C@~,
1MntTIT
以下的语句在Quick BASIC中同样有效: ^)qOILn
cO&(&*J r
? "Hello,world!" 3RwDIk?>%
rA=iBb3`
f
WUFCbSU
BCPL z5V~m_RO
GET "LIBHDR" RDX$Wy$@L
E%B:6
LET START () BE ;x]CaG)f
$( 1E1oy(\V
WRITES ("Hello, world!*N") TzPG(f
$) 8ZnHp~
nfL-E:n=
*OX;ZQg0
Befunge "@P)
"!dlrow olleH">v m1d*Lt>F@
, Kd<c'!
^_@ "[Z'n9C
)<<}8Fs
i4Ps#R_wx
Brainfuck
c.<bz
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< l r16*2.
+++++++++++++++.>.+++.------.--------.>+.>. G_5uO58
^lI>&I&1
}K
rQPg
C ,Q7W))j
#include <stdio.h> 5a0&LNm
KOYU'hw
int main(void) p3Ey[kURp
{ z 2/E?$(
printf("Hello, world!\n"); V2v}F=
return 0; j'2:z#
} s-S#qGZ
/=+y[y3`
53g(:eB
C++
`oPUf!
#include <iostream> %^zGM^PD
IP#?$X
int main() u0s25 JY.%
{ ,MmX(O0
std::cout << "Hello, world!" << std::endl; D|8Pe{`
return 0; r+yl{
} MBjo9P(
T@{}!
y)Y0SY1\j
C++/CLI 0@BhRf5
int main() #9's^}i
{ w1N-`S:
System::Console::WriteLine("Hello, world!"); (8XP7c]5
} x/)o'#d$|l
U?WS\Jji3!
%UO ;!&K
C# (C Sharp) 0q !
class HelloWorldApp s)eU^4m
{ /'g/yBY
public static void Main() `P(Otr[6
{ 40M/Gu:
System.Console.WriteLine("Hello, world!"); $-J=UT2m
} x2 _?B[z
} '1f:8
~T'!.^/
S.E'fc1
COBOL
l
;fO]{
IDENTIFICATION DIVISION. ,cF
$_7M
PROGRAM-ID. HELLO-WORLD. JvI6+[
'Cq)/}0
ENVIRONMENT DIVISION. _d J"2rx
vgyv~Px]AW
DATA DIVISION. A4|L;z/A[h
$Fr>'H+i
PROCEDURE DIVISION. sX,."@[
DISPLAY "Hello, world!". DV6B_A{kI
STOP RUN. an<loLW
$bho]~
"m'roU
Common Lisp &%infPI'
(format t "Hello world!~%") #[<XNs!"
:wcv,YoSG
/,`40^U}
DOS批处理 $I$ B8
@echo off V`,tu `6
echo "Hello, world!" 9Q. }jV
ww^!|VVa
&>KZ4%&?
Eiffel 0Xe?{!@a
class HELLO_WORLD :tTP3t5
UbDRE[^P
creation XW2{I.:in>
make kbR!iPM-;
feature 8
FJ>W.
make is O"c@x:i
local -h|YS/$f
io:BASIC_IO RY\[[eG
do d8V)eZYXy~
!!io zF-M9f$_PY
io.put_string("%N Hello, world!") aEJds}eE6)
end -- make nUy2)CL[L
end -- class HELLO_WORLD 0+P[0
e ab_"W
2(%C
Erlang ~V:@4P
-module(hello). Xv2u7T\
-export([hello_world/0]). ~4t7Q
JIYZ
hello_world() -> io:fwrite("Hello, World!\n"). Q9C;_Up
O.+02C_*
8h=Rfa9
Forth ?yq $
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." Hello, world!" CR YS|Ve*t(L=
7L"Pe'Hw
+bC=yR
Fortran JPt0k
WRITE(*,10) x]X!nx6G
10 FORMAT('Hello, World!') d7)EzW|I;
STOP PRpW*#"EI
END 8t$w/#'@
to%n2^^K
y G{;kJ P
HTML !JOM+P:
<HTML> x[w!buV0\
<HEAD> kNnI$(H"H
<TITLE> Hello World! </TITLE> Dg_AoC
</HEAD> ^@a|s
Sb
<BODY> 2uajK..b
<p>Hello World!</p> *H''.6
</BODY> PL6f**{-
</HTML> +:#x!i;W8[
aIsT"6A~{
D)my@W0,
HQ9+ }X;LR\^u[f
H YlP8fxS
}0(.HMiGj
h,u?3}Knnb
INTERCAL 0**.:K<i
PLEASE DO ,1 <- #13 \A'tV/YAd
DO ,1 SUB #1 <- #238 N*CcJp{Q
DO ,1 SUB #2 <- #112 lgL|[ik`
DO ,1 SUB #3 <- #112 n\x@~ SzrX
DO ,1 SUB #4 <- #0 )vcyoq
DO ,1 SUB #5 <- #64 XFx p ^
DO ,1 SUB #6 <- #238 re-;s
DO ,1 SUB #7 <- #26 G&?,L:^t
DO ,1 SUB #8 <- #248 NZh\{!
DO ,1 SUB #9 <- #168 g/v"E+
DO ,1 SUB #10 <- #24 &!=[.1H<
DO ,1 SUB #11 <- #16 ='"hB~[
DO ,1 SUB #12 <- #158 lM N3;}K
DO ,1 SUB #13 <- #52 r: :LQ$
PLEASE READ OUT ,1 6_#:LFke
PLEASE GIVE UP =iEQE
`r$c53|<u
k:JlC(^h
Java cIJqF.k
public class Hello v[UrOT:
{ /O$7A7Tl
public static void main(String[] args) UOwEA9q%
{ E2Jmo5yJR
System.out.println("Hello, world!"); L=1~)>mP
} |[lmW%
} zQNkjQ{mx
Qe6'W
\dzHG/e
JSP =8!FY"c*
<% Munal=wL
out.print("Hello, world!"); Qv`Lc]'
%> 1q Jz;\wU
aGRD`ra
/eI]!a
MIXAL =bwuLno>
TERM EQU 19 the MIX console device number 8:=EA3
ORIG 1000 start address hfBZ:es+
START OUT MSG(TERM) output data at address MSG ys#V_ysb
HLT halt execution R3`h$`G
MSG ALF "MIXAL" -{tB&V~+v
ALF " HELL" rbEUq.Yk]~
ALF "O WOR" >Y\$9W=t
ALF "LD " c%bGVRhE
END START end of the program (*CGZDg
i4XE26B;e
4EZl
(v"f`
Nuva ^G~C#t^
<..直接输出..> A/%+AH(
Hello, world! VYj*LiR
q#n0!5Lv2
<..或者..> 0OrT{jo
M'"@l$[QM
<. JO^E x1c
// 不带换行 y_F{C 9KE
? "Hello, world!" k m(Mv
Fz 6&.f
// 或者 t;?TXAA
f L}3I(VK
// 带换行 IB
sQaxt.
?? 'Hello, world!' <.HDv:
.> q|N/vkqPz
,8vqzI
pFZ2(b&
OCaml H1bPNt63
let main () = =%\y E0#
print_endline "Hello world!";; !4blX'<w
i3s,C;7[2
L#|,_j=9
Pascal D_W,Jmet
program Hello; o_K.
+^$
begin Z|h&Zd1z
writeln('Hello, world!'); =mq02C~y
end. e9 `n@
Uo7V)I;o
n>
>!dg Og
Perl wy1xZQ<5
#!/usr/local/bin/perl X4D>
print "Hello, world!\n"; 8!T6N2O6d
aUBGp: (
f.~-31
PHP wj'5D0
<?php tsLi5;KA]
print("Hello, world!"); )l|/lj
?> Ca?:x tt
Pl>S1
t5qNfiKC
Pike ;Rz+4<
#!/usr/local/bin/pike ZMI!Sl
int main() 9AxeA2/X
{ KqE5{ q
write("Hello, world!\n"); BJ]4j-^o
return 0; :JEzfI1
} k!^Au8Up?
BM@:=>ypQ
NFEF{|}BM
PL/I -S ASn
Test: procedure options(main); |K H&,
declare My_String char(20) varying initialize('Hello, world!'); is2OJ,
put skip list(My_String); n&51_.@Q
end Test; yd-r7iq
+a{P,fRl@
:ziV3jRM
Prolog O=9mLI6
goal =Z($n:m=*
write("hello,world!"). + \DGS
CfSpwkg
|BO!q9633V
Python ]4$t'wI.
#!/usr/local/bin/python !@r1B`]j+"
print "Hello, world!" 2}ttCm
_aR_[
exnFy-
REXX ^o*$OM7x
say "Hello, world!" $Ka-ZPy<#
>sUavvJ~x
"wB~*,Ny
Ruby |fJpX5W-l
#!/usr/bin/ruby w=]bj0<A=
print "Hello, world!\n" D]{#!w(d
?dJ[?<aG
6zJ<27
Scheme y" (-O%Pe
(display "Hello, world!") uh][qMyLM
(newline) ^RS?y8
g.&n
X/
%LH~Im=
sed (需要至少一行输入) Spnshv8
sed -ne '1s/.*/Hello, world!/p' Nan@SuKY
%`kO\q_
7V^\fh5~
Smalltalk x }8 U\
Transcript show: 'Hello, world!' sNet[y:O3
3XCePA5z
(zVT{!z
SNOBOL v*Fr#I0U
OUTPUT = "Hello, world!" x8#bd{
END 0#gu7n|J
DRo?7_
"M)kV5v%
SQL HI`
q!LPv
create table MESSAGE (TEXT char(15)); .d^XM
insert into MESSAGE (TEXT) values ('Hello, world!'); ifA)Ppt<`
select TEXT from MESSAGE; 8BL]]gT-I
drop table MESSAGE; *gq~~(jH
Z'vic#
O> 5xFz'm
Tcl PD-<D~7
#!/usr/local/bin/tcl _I"T(2Au
puts "Hello, world!" <6
LpsM}
XIg GE)n
?k5m1,fHW
TScript doIcO,Q
? "Hello, world!" oj|\NlR
$P9'"a)Lm
yX^/Oc@j
Turing Rh[%UNl
put "Hello, world!" _y,?Cj=u|
Nq$Xe~,*
q_h=O1W
UNIX-style shell deRnP$u0
程序中的/bin/sh可改为您使用的shell cZd9A(1"^
@w8MOT$
#!/bin/sh Kzj9!'0R
echo 'Hello, world!' n<}t\<LG^c
1Qc>A8SU
2|LgUA?<
GUI Ewfzjc
j9V*f
HK
Delphi kw%vO6"q(
program HelloWorld; aBBTcN%'
uses }mZsK>
Dialogs; yX-h|Cr"
begin s+EJXoxw
ShowMessage('Hello, World!'); -<Wv7FNpD
end. Y-0o>:SM
]vFtByqn
&jg..R
Nuva =i`#0i2(
<. 8?YWE62
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) h{J=Rq
.> MmZs|pXk
9kpCn.rJ
'aW}&!H M
Visual Basic 6lp.0B
MsgBox "Hello, world!" qs["&\@
'或者 U_X /
Print "Hello, world!" w7(jSPB
1x"S^j
I6q]bQ="
Visual FoxPro jm~qD
T,
? "Hello, world!" STr&"9c
zKnHo:SV
%, U@ D4w
X11 55mDLiA
用一个程序 l"C)Ia&/
m(B,a,g<
xmessage 'Hello, world!' &
V*_\
+d$l1j
用C++和gtkmm 2 ls^|j%$J
Y[0
#include <iostream> 7sC8|+
#include <gtkmm/main.h> $@ous4&
#include <gtkmm/button.h> uT#MVv~ .
#include <gtkmm/window.h> )[w_LHKI
using namespace std; <9BM%
jt*VD>ji
class HelloWorld : public Gtk::Window l$>))cW!
{ {J?#KHF'|
public:
x]6wiV
HelloWorld(); qoifzEc`U
virtual ~HelloWorld(); ug|'}\LY
protected: *c0\<BI
Gtk::Button m_button; "K!9^!4&
virtual void on_button_clicked(); ZRK1UpP
}; Fz3QSr7FU
iG.qMf.
HelloWorld::HelloWorld() : m_button("Hello, world!") na%DF@Rt#
{ !6yyX}%o
set_border_width(10); K|OowM4tv
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ]+OHxCj:
add(m_button); hj8S".A_
m_button.show(); #fuc`X3:HL
} >z,SN
!%1=|PX_
HelloWorld::~HelloWorld() {} pejG%pJ
m^9[k,;K
void HelloWorld::on_button_clicked() [pc6!qhDG&
{ W@T_-pTCjK
cout << "Hello, world!" << endl; ThvVLK
} e%B;8)7
~&UfnO
int main (int argc, char *argv[]) tW=,o&C=
{ +Vf39}8
Gtk::Main kit(argc, argv); _:0)uR LS
HelloWorld helloworld; aCwb[7N
Gtk::Main::run(helloworld); hv6w=?7
} 8.g(&F
+FYQ7UE
^T{ww=/v
Java 1z#0CX}Y/H
import java.awt.*; /.Fvl;!J;
import java.awt.event.*; ,pg\5b
$PNS`@B
public class HelloFrame extends Frame DNh{J^S"}w
{ ]Zj6W9]m
HelloFrame(String title) r=`]L-}V
{ HZG<aY="
super(title); .t7mTpi
} !Q0aKkMfL
public void paint(Graphics g) '(qVA>S
{ :kaHvf
super.paint(g); #Is/j =
java.awt.Insets ins = this.getInsets(); bM9:h
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Hy_}e"
} 2".^Ma^D!
public static void main(String args []) clcj5=:
{ 4)IRm2G
HelloFrame fr = new HelloFrame("Hello"); %"1*,g{
MmvMuX]#)
fr.addWindowListener( (16U]s
new WindowAdapter() ?9?eA^X%
{ 6?CBa]QG
public void windowClosing(WindowEvent e) =LsW\.T6
{ 9AbSt&#
System.exit( 0 ); M[Kk43;QY!
} $;ssW"7~Qn
} ?
7H'#l
); =N+Ou5D
fr.setResizable(true); H=f'nm]dQ
fr.setSize(500, 100); 5z$>M3
fr.setVisible(true); %U4w@jp
} Ga%x(1U[&
} ,z*-93H1
Gz>M`M`[4
]Q%|69H}B
Java Applet [T5z}!_y
Java Applet用于HTML文件。 +yh-HYo`
E@f2hW2
HTML代码: v+3-o/G7
CXzN4!
<HTML> y'a(>s(
<HEAD> K?4/x4p@
<TITLE>Hello World</TITLE> Pdg %:aY
</HEAD> a9OJC4\
<BODY> yXpU)|o
-9.Rmv#og{
HelloWorld Program says: gm-m_cB<
Q]?Lg
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> $c WO`\XM
</APPLET> uAWmg8
gEE6O%]g
</BODY> CUS^j
</HTML> z_jTR[dY
"DW; 6<m
Java代码: )k@+8Yfa1p
S b9In_*
0
import java.applet.*; Ww
}qK|D
import java.awt.*; K]b_JDEk
azUEp8`|
public class HelloWorld extends Applet kRyt|ryWh
{ LB)sk$)
public void paint(Graphics g) [~
Wiy3n
{ `F#<qZSR
g.drawString("Hello, world!", 100, 50); {U`B|
} .Fz5K&E=
} f
+#
K }]0<\N
Mohy;#8Wk
java script dXe.
5XC
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 ,r,~1oV<"
w(P\+ m <%
<script language="java script"> f>u{e~Q,
function helloWorld() 7Y8 B \B)w
{ owA0I'|V-A
alert("Hello World"); {GaQV-t
} $rZ:$d.C
</script> 4zF|}aiQ
Wgh4DhAW
<a href="java script:this.location()" lZ3o3"
onclick="java script:helloWorld();">Hello World Example</a> <z>K{:+>
Se
o3 a6o
i>Cxi ZT
PostScript ")q{>tV
PostScript是一种专门用来创建图像的语言,常用于打印机。 ~/@5&