“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。 kK>PFk(
v=$v*W
将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 9;NR
*^ g7kCe(
以下是用不同语言写成的Hello World程序的几个例子: T]Pp\6ff
Ada ORD@+ {
with Ada.Text_Io; use Ada.Text_Io; " P c"{w
procedure Hello is %s6|w=.1
begin !O~EIz
Put_Line ("Hello, world!"); y4^6I$M7V
end Hello; <: f jWy
:Em[>XA
Ni7~
Mjjt
汇编语言 9K-=2hvv
;<OIu&,*
x86 CPU,DOS,TASM 3~iIo&NZ
MODEL SMALL |9$K'+'
IDEAL [/.o>R#J(
STACK 100H 9X/c%:)\=
uW},I6g
DATASEG Y1vl,Yi
HW DB 'Hello, world!$' u|z B\zd
$fR[zBxA
CODESEG L&H4fy!>
MOV AX, @data |f#~#Y2v
MOV DS, AX RBd{1on
MOV DX, OFFSET HW 6lpfk&
MOV AH, 09H 7g^=
INT 21H <nOK#;O)
MOV AX, 4C00H ~&8ag`
INT 21H M#c.(QdF
END -}_-#L!Q
-SnP+X!
n.Iu|,?q
x86 CPU,GNU/Linux,NASM (sSMH6iCif
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). sS7r)HV&GI
;Enter this into "hello.asm" then type: t>:2F,0K9
;"nasm -f elf hello.asm" c4E=qgP
;"ld hello.o -o hello" cD{I*t$
;"./hello" SRuNt3wW6
BR;f!
section .data ;data section declaration OsAH!e
msg db 'Hello World!',0AH 1A^~gYr
len equ $-msg ;string length Q[O[,Rk
</(bwc~2
section .text ;code section declaration $$_aHkI j
global _start ;entry point (start of execution)
K6d9[;F
_start: mov edx,len ;string length M}MXR=X,
mov ecx,msg ;string start :f<3`x'
mov ebx,1 ;file handle: stdout ^W+q!pYM9+
mov eax,4 ;sys_write t=J WD2
int 80h ;kernel system call fS+Ga1CsH
=QXLr+
y@
mov ebx,0 ;return value bq{":[a
mov eax,1 ;sys_exit %9B r
int 80h ;kernel system call Pi7vuOJr8
pVbgjJI
W =fs"<
x86 CPU,Windows,MASM32 cD5c&+,&I
.386 (lBgWz
.model flat,stdcall hDTiXc
option casemap:none :d\ne
;Include 文件定义 1D159 NLB
include windows.inc 3}V`]B#a
include user32.inc AvnK?*5!@
includelib user32.lib MW*@fl<@?M
include kernel32.inc +c$]Q-(
includelib kernel32.lib h.+{cOA;n
;数据段 No#1Ik w
.data %GG:F^X#
szCaption db 'A MessageBox!',0 t '
_Au8
szText db 'Hello,world!',0 p w(eWP
;代码段 n<\
WVi
.code xLhN3#^m
start: S3EM6 `q'
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 4Rj;lAlwB
invoke ExitProcess,NULL s}yJkQb
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> #~<cp)!3
end start [ aC7
8G@I e
mkH{%7n
AWK O/b~TVA
BEGIN { print "Hello, world!" } l+g\xUP
A<-Prvryt
5=]q+&y\H
BASIC r#ES|
传统版BASIC(例如GWBASIC): k=">2!O/
CZaUrr
10 PRINT "Hello, world!" evOyTvc
20 END y\Su!?4!
;{'{*g[
或在提示符输入: MR:GH.uM:
mqxgrb7
?"Hello, world!":END *9V;;bY#
~gU.z6us
现代版BASIC(例如Quick BASIC): D L0jA/f
)9LlM2+y
Print "Hello, world!" c|?0iN
F|.,lb |L
以下的语句在Quick BASIC中同样有效: $qOV#,@
IoUQ~JviA
? "Hello,world!" C/AqAW1
uLFnuK
rz/^_dV
BCPL {@j0?s
GET "LIBHDR" N0APX4j
1NJ,If]
LET START () BE LS1r}cl
$( 5cLq6[uO
WRITES ("Hello, world!*N") / O@'XWW
$) !J<}=G5
Bc1[^{`bq^
Th1/Bxb:
Befunge 15PFnk6E|
"!dlrow olleH">v JBX#U@k>I
, {|)u).n|
^_@ }py6H[
[X>\!mt
$@]tTz;b
Brainfuck x\HHu]
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< /B>p.%M[&
+++++++++++++++.>.+++.------.--------.>+.>. d:KUJ
Y.
.1F(-mLd
xRum q
C QUa_gYp0v
#include <stdio.h> Hj&mwn]
pPr/r& r
int main(void) rHhn)m
{ ] Tc!=SV
printf("Hello, world!\n"); H"v3?g`S%
return 0; |0!oSNJ
} 7)Zk:53]
43_;Z| T
jTVh`d<N
C++ :|%dV}j
#include <iostream> )Rhy^<xH
s"1:#.u
int main() rKZ1
c,y
{ Bl,rvk2
std::cout << "Hello, world!" << std::endl; Twscc"mK
return 0; c*0pF=3
} @
s
h4@v.GI
CE :x;!}cd
C++/CLI Co e
q<
int main() 9Z! j
{ a%3V<
"f
System::Console::WriteLine("Hello, world!"); L`"PaIMz
} <PBrW#:'
4=]CA O=O
Y6LoPJ
C# (C Sharp) ["FC
class HelloWorldApp UdBP2 lGd
{ <sXmk{
public static void Main() S@Rw+#QE
{ ;Dl< GW3<
System.Console.WriteLine("Hello, world!"); g? 7%
} :]?y,e%xu,
} (e>.hfrs
wSrq?U5q
S<RJ46
COBOL t\[aU\4-7
IDENTIFICATION DIVISION. ZY%]F,Y
PROGRAM-ID. HELLO-WORLD. D9OI",h
+APf[ZpU
ENVIRONMENT DIVISION. gQpF(P
OKDBzl
DATA DIVISION. ^:JZ.r
PFP/Pe Ng;
PROCEDURE DIVISION. FScE3~R
DISPLAY "Hello, world!". \Qa6mt2h
STOP RUN. h/9{E:ML
a-I3#3VJ@
JXR_klx
Common Lisp +.i?UHNB
(format t "Hello world!~%") U p1&(
~=W|I:@
/mELnJ^
DOS批处理 yFfa/d
@echo off 3U#z {%
echo "Hello, world!" \/8 I6a=
]6wo]nV[P
eQBR*@x
Eiffel I+ZK \?Rs
class HELLO_WORLD XY(3!>/eQ[
5w:
creation yGN@Hd:9
make ^X$k<n A;
feature igNZe."V
make is 7%aaqQ1T
local #q2cVN1
io:BASIC_IO YyR)2j1O
do Aj`zT'
!!io 4 z~ fn9g
io.put_string("%N Hello, world!") INQ0h `T
end -- make EYc, "'
end -- class HELLO_WORLD ;g[C=yhK`C
?A|8J5EV
rDNz<{evj
Erlang A?{ X5`y
-module(hello). _*b1]<
-export([hello_world/0]). g(d9=xq@k
:r^c_Ui
hello_world() -> io:fwrite("Hello, World!\n"). =*Z=My}3~
WB S~e
G\8ps~3T
Forth <I.anIB:U
." Hello, world!" CR m2o*d$Ke
LQVa,'
v3 $+l1
Fortran `I$'Lp#5
WRITE(*,10) =3rPE"@,[
10 FORMAT('Hello, World!') a`.] 8Jy)
STOP \I
r&&%
END y~)rZ-eSB
qTK\'trgx]
w_30g6tA
HTML 7I~Ww{
<HTML> n-m+@jR z
<HEAD> nZ?BCO
<TITLE> Hello World! </TITLE> J 00<NRxj"
</HEAD> [zp v3Uw
<BODY> G5y>v^&H
<p>Hello World!</p> # 4E@y<l$
</BODY> "bFt+N
</HTML> HJl$v#]#+
T(@y#09
(P;z*
"q
HQ9+ =ogzq.+|
H <1tFwC|4BJ
et|P5%G
=j[zMO
INTERCAL !a&@y#x
PLEASE DO ,1 <- #13 V|.3Z\(
DO ,1 SUB #1 <- #238 d4c-(ZRl
DO ,1 SUB #2 <- #112 Lq@pJ)a
DO ,1 SUB #3 <- #112 wT?.Mte
DO ,1 SUB #4 <- #0 G)28#aH
DO ,1 SUB #5 <- #64 $YvT*
T$_
DO ,1 SUB #6 <- #238 8zew8I~s
DO ,1 SUB #7 <- #26 G%N/]]ll
DO ,1 SUB #8 <- #248 ~YO-GX(
DO ,1 SUB #9 <- #168 yYmV^7G
DO ,1 SUB #10 <- #24 X+;F5b9z
DO ,1 SUB #11 <- #16 xEBiBskd
DO ,1 SUB #12 <- #158 V$u~}]z
DO ,1 SUB #13 <- #52 ~2xC.DF_N
PLEASE READ OUT ,1 Pf
s _s6
PLEASE GIVE UP *0ZL@Kw
M/GQQG;
olPV"<;+pO
Java =w HU*mK
public class Hello a' "4:(L
{ )/FB73!
public static void main(String[] args) +(/?$dRH
{ Vx_lI
#3
System.out.println("Hello, world!"); U~z`u&/
} '0g1v7Gx
} /3D!,V,
#yZZ$XO k
?c)PBJ+]
JSP V6l*!R
<% Ojj:YLlY>
out.print("Hello, world!"); 4HlOv%8
%> 8[LwG&
a~YFJAkg9
L-_dq0T
MIXAL $3BCA)5:
TERM EQU 19 the MIX console device number y3T-^
ORIG 1000 start address BcaMeb-Z
START OUT MSG(TERM) output data at address MSG kR%bdN
HLT halt execution WrhC
q6
MSG ALF "MIXAL" +}c
'4hRv
ALF " HELL" #*uSYGdc
ALF "O WOR" p2}$S@GD
ALF "LD " !xoN%5!
END START end of the program ,2mnjq/*Z
I}/o`oc
Gv[W)+3f
Nuva 'Im7^!-d
<..直接输出..> PbOLN$hP
Hello, world! 9`}Wp2
[\CQ_qs|
<..或者..> Ms5m.lX
`Z]Tp1U
<. FUzIuz 6
// 不带换行 &fA`Od6l"
? "Hello, world!" Lv@JfN"O
xB{0lI
// 或者 b_Ns
Ch3@
-jsNAQ
// 带换行 fLK*rK^{"
?? 'Hello, world!' a5WVDh,cR
.> vTN/ho,H
Kx9Cx5B
J 2%^%5&0
OCaml ~[XDK`B
let main () = 2<}^m/}
print_endline "Hello world!";; q[{q3-W
>nmby|XtW
E",s]
Pascal 5)4*J.
program Hello; 0'O; H[nrl
begin X0
&1ICZ
writeln('Hello, world!'); ~rEU83
end. {snLiCl
_F
xq
j>~^jz:
Perl XNwY\y
#!/usr/local/bin/perl V ~w(^;o@
print "Hello, world!\n"; X5U.8qI3
-xq)brG
/b,M492
PHP +U&aK dQs
<?php %Rv&VFg
print("Hello, world!"); =-jkp
?> bTZ/$7pp9
{EbR
=
Z@&_ T3M
Pike BZEY^G
#!/usr/local/bin/pike YIb5jK`
int main() )0`;leli
{ N( E\
write("Hello, world!\n"); ]O',Ei^
return 0; 'vj45b
} +Y(cs&V*
k\|G%0Jw
Zoj.F
PL/I I<|)uK7
Test: procedure options(main); p%,:U8fOR
declare My_String char(20) varying initialize('Hello, world!'); 9Am&G
put skip list(My_String); /pgfa-<
end Test; _z\oDd`'
S6,AY(V
0F=UZf&
Prolog zkn K2e,$
goal 2<>n8 K
write("hello,world!"). & S_gNa
{"!V&}
D|Wekhm
Python Htl6Mr*{
#!/usr/local/bin/python epj]n=/}[
print "Hello, world!" 6kGIO$xJ)
(f5!36mz
*D
#H-]9
REXX LSlaz
say "Hello, world!" \c/jp5=}
N}nU\e6 Y
D/:~#)
Ruby &}32X-~y
#!/usr/bin/ruby |;'V":yDs
print "Hello, world!\n" >4}+\ Q`S
FMhwk"4L
hD{+V!{
Scheme U`K5 DZ~
(display "Hello, world!") ,,mkB6;
(newline) j+]>x]c0
O7ceSz
GBtBmV/`
sed (需要至少一行输入) g2;JJ}
sed -ne '1s/.*/Hello, world!/p' Gv>,Ad
ka
j/3827jw=
|!8[Vg^Wh
Smalltalk J6Hw05%0=
Transcript show: 'Hello, world!' +N"A5U
jIK*psaV
()JM161
SNOBOL bM_Y(TgJ
OUTPUT = "Hello, world!" ;5=J'8f
END 4LtFv)i
K6@QZc5.!
=#^%; 6 6z
SQL iOPv
% [
create table MESSAGE (TEXT char(15)); '?E^\\"*
insert into MESSAGE (TEXT) values ('Hello, world!'); ldrKk'S,B
select TEXT from MESSAGE; P.3j |)NW
drop table MESSAGE; Im{50%Y
Vi23pDZ5
V;L^q?v
!
Tcl o; {
#!/usr/local/bin/tcl 15r,_Gp8
puts "Hello, world!" A|CW4f,
!Y!Cv %
%Z 9<La
TScript a-4'jT:
? "Hello, world!" R3d>|`) +
{\ P$5O{%
<?&GBCe
Turing gHQ[D|zu
put "Hello, world!" ;E(gl$c:
@y;N
u
W tnZF]1:u
UNIX-style shell \o?zL7
程序中的/bin/sh可改为您使用的shell YM
0f_G=
Z6!MX_ep
#!/bin/sh }C/u>89%q
echo 'Hello, world!' f*Xonb
XPd>DH(Yc
^ox^gw)
GUI R5ZnkPEA
Vs]+MAL
Delphi hc5M)0d
program HelloWorld; }5RfY| ;
uses ^5qX+!3r{
Dialogs; e7t).s)b{
begin wA+J49
ShowMessage('Hello, World!'); [Oxmg?W
end. $R2T)
;tf1#6{
WiH%URFB
Nuva ({yuwH?tH
<. LU_@8i:
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) `~WxMY0M
.> E8T4Nh_
Mlb=,l
x1Q}B
Visual Basic K$\az%NE
MsgBox "Hello, world!" g^NdN46%
'或者 k~>9,=::d
Print "Hello, world!" nZfTK>)A0
>-r\]/^
GxLoNVr
Visual FoxPro j?jEWreq]~
? "Hello, world!" >MUwT$szs
bS3qX{5
JS642T
X11 kWF4k
用一个程序 W:aAe%S
Xj&{M[k<
xmessage 'Hello, world!' V,<,;d fR
rwtSn?0z"
用C++和gtkmm 2 V-}d-Y
zG[fPD
#include <iostream> FZ #ngrT
#include <gtkmm/main.h> ":"QsS#*"#
#include <gtkmm/button.h> vPR1
TMi>
#include <gtkmm/window.h> VD,F?L!
using namespace std; X;w1@4!
i`gsT[JQRX
class HelloWorld : public Gtk::Window X@b$C~+
{ E(4ti]'4
public: 5hB&]6n
HelloWorld(); %+w>`k3(N
virtual ~HelloWorld(); ci+Pg9sS
protected: MKJ9PcVi
Gtk::Button m_button; doFp53NhV
virtual void on_button_clicked(); k1L GT&
}; hAOXOj1
en=Z[ZIPO
HelloWorld::HelloWorld() : m_button("Hello, world!") BgA\l+
{ 7t\kof
set_border_width(10); 394u']M
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Q[i;IbY
add(m_button); (
]AErz+
m_button.show(); ";`ddN3
} L-Xd3RCD
st{:]yTRk
HelloWorld::~HelloWorld() {} 7V 4iPx
3a:(\:?z
void HelloWorld::on_button_clicked() C]WVH\Pp
{ 6"|PJ_@P
cout << "Hello, world!" << endl; yZb@
} z Rz#0
IQGIU3O
int main (int argc, char *argv[]) h"l{cDk
{ z:+Xs!S
Gtk::Main kit(argc, argv); 5>j,P
HelloWorld helloworld; }C/}8<
Gtk::Main::run(helloworld); V3yO_Iqa
} 2a5yJeaIv*
*B#OLx
T(a*d7
Java >Eik>dQ a
import java.awt.*; :lgIu .
import java.awt.event.*; h6)hZ'zV
^[&*B#(
public class HelloFrame extends Frame ksu:RJ-
{ Vn];vN
HelloFrame(String title) mrFMdpaHl%
{ mTZlrkT
super(title); >8t(qM-~:
} A
|NX"
public void paint(Graphics g) ~>>o'H6
{ e Yyl=YW
super.paint(g); "N4c>2Q
java.awt.Insets ins = this.getInsets(); U!3nn#!yE
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); dMRwQejY{7
} #kLM=a/_NO
public static void main(String args []) d`({z]W;
{ u>k;PUH4
HelloFrame fr = new HelloFrame("Hello"); um&N|5lHb
<u->hT
fr.addWindowListener( k^R>x V
new WindowAdapter() kZUuRB~om
{ DgClN:Hw
public void windowClosing(WindowEvent e) %6Hn1'7+v
{ 1;? L:A
System.exit( 0 ); cTRCQ+W6:
} `q$DNOrS
} -BEPpwb<g
); 27u$VHwb
fr.setResizable(true); dE^(KBF
fr.setSize(500, 100); 7yQ r
fr.setVisible(true); `kekc.*-[@
} 8 ehC^Cg
} {W `/KU?u
;`F0
%0d
?$
YE
Java Applet egr@:5QwZ{
Java Applet用于HTML文件。 >D-$M_
YRC`2)_'
HTML代码:
0;k3
&q