“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。 A`N;vq,
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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》。 |d`?wm-
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以下是用不同语言写成的Hello World程序的几个例子: l%w7N9
Ada t!i F(R\
with Ada.Text_Io; use Ada.Text_Io; LB{a&I LG
procedure Hello is / 9;Pbxn
begin ?=4t~\g?
Put_Line ("Hello, world!"); sN?:9J8
end Hello; eqf~5/Z
{
o;0Fx
fzio8mKVX
汇编语言 '+QgZ>q"
-"nYCF
x86 CPU,DOS,TASM AN1bfF:C
MODEL SMALL U92hv~\
IDEAL >S3 >b
STACK 100H !*ucVv;
U D(#u3z
DATASEG "nefRz%j+
HW DB 'Hello, world!$' e^an` </{
^R$dG[Qf
CODESEG DtN6.9H2`
MOV AX, @data F>Oh)VL,Ev
MOV DS, AX 68>zO%
MOV DX, OFFSET HW |S}*M<0
MOV AH, 09H gjWH
}(K
INT 21H a[!d)Y:zx
MOV AX, 4C00H ;7A,'y4f
INT 21H "O
'I
END fh3
6
W!^=)Qs
w#$k$T)
x86 CPU,GNU/Linux,NASM J|q_&MX/
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). mNYz7N
;Enter this into "hello.asm" then type: _L72Ae(_
;"nasm -f elf hello.asm" xd.C&Dx5
;"ld hello.o -o hello" ?(=B=a[
;"./hello" $g^;*>yr
&Os Ritj
section .data ;data section declaration 1GdgF?4
msg db 'Hello World!',0AH ,'6GG+
len equ $-msg ;string length q'r3a+
K\ ]r
section .text ;code section declaration {cI<4><
global _start ;entry point (start of execution) pp`U]Q5"gX
_start: mov edx,len ;string length G<eJ0S
mov ecx,msg ;string start `QF|>
N
mov ebx,1 ;file handle: stdout gD\}CxtG
mov eax,4 ;sys_write DIAP2LR ?
int 80h ;kernel system call 7q=0]Hrg(D
19t*THgq
mov ebx,0 ;return value c%!wKoD
mov eax,1 ;sys_exit Uf<vw3
int 80h ;kernel system call 8(;i~f:bCW
9 JtG&^*
OXB-.<
x86 CPU,Windows,MASM32 !/zj7z
!
.386 B" z5j
.model flat,stdcall hH/O2
option casemap:none g1|c?#fwo
;Include 文件定义 hdL2`5RFF
include windows.inc MO/N*4U2
include user32.inc n}?G!ySg
includelib user32.lib 7A6sSfPUy
include kernel32.inc }b(e
includelib kernel32.lib J5T#}!f
;数据段 LNE[c
.data {@%(0d{n}
szCaption db 'A MessageBox!',0 >cb
gL%
szText db 'Hello,world!',0 WXU6J?tIm
;代码段 6f!mk:\T.
.code "tARJW
start: L /> GYx
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK POXn6R!mM1
invoke ExitProcess,NULL MvmP["%J4_
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ~B@o?8D]
end start R2`g?5v
(^9M9+L[i
;I'/.gW;{
AWK nL!@#{z
BEGIN { print "Hello, world!" } Q^rW^d
}C1wfZ~F~
88j
;7
BASIC CK</2 w+
传统版BASIC(例如GWBASIC): 2A|6o*s"
9(WC#-,
10 PRINT "Hello, world!" KOx#LGz
20 END BkfBFUDQ
eb\`)MI/
或在提示符输入: E;H(jVZ
UD`Z;F
?"Hello, world!":END |/;5|
z
f :5/y^M&
现代版BASIC(例如Quick BASIC): ,?6m"ov4(
5I,X#}K[
Print "Hello, world!" {;DZ@2|
Dys"|,F
以下的语句在Quick BASIC中同样有效: 2*YXm>|1
pNFIO
t:(
? "Hello,world!" jt--w"|-r
-RQQ|:O$
pH%c7X/[3L
BCPL MA#!<b('
GET "LIBHDR" sLp
LY1X
rC `s;w
LET START () BE oJT@'{;*z
$( q"<-
WRITES ("Hello, world!*N") FF~4y>R7u
$) ueBoSZRWX
4>C=:w
E}/|Lja
Befunge b'5pQ2Mq
"!dlrow olleH">v {VG[m@
, 2z# @:Q
^_@ /exl9Ilt]
M&c1iK\E8
kw ^ Sbxm
Brainfuck KocXSh U
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< {WOfT6y+
+++++++++++++++.>.+++.------.--------.>+.>. ibs"Iv34
no6]{qn=6
jdf)bO(9#
C <9tG_
#include <stdio.h> vXQmEIm
'TsZuZW]
int main(void) H)aC'M^
{ kGV`Q
printf("Hello, world!\n"); +STzG/9#
return 0; 72vGfT2HtZ
} =e-aZ0P
,ri--<
-L?%
o_
C++ 8z8SwWS?
#include <iostream> 4$GRCq5N;
A;a(n\Sy
int main() V9+"CB^
{ Sc3M#qm_
std::cout << "Hello, world!" << std::endl; C,vc
aC?
return 0; 59BHGvaF
} c$:=d4t5$
Nw&}qSN
(G%gVk]
C++/CLI [Ms{J!^q
int main() KqUSTR1e[
{ @/NZ>.
System::Console::WriteLine("Hello, world!"); ~LW%lMy;^|
} NZW)X[nXM
T4Gw\Z%
4qXRDsbCf
C# (C Sharp) vP)~j1
class HelloWorldApp Rn_W|"
{ p<fgUVR
public static void Main() 7"NJraQ6
{ :fKz^@mY4
System.Console.WriteLine("Hello, world!"); Fd,+(i D
} q.sQ Z]ty9
} Bp{`%86SE
B%:9P
YGV#.
COBOL o]jP3
$t;
IDENTIFICATION DIVISION. [d~bZS|(T(
PROGRAM-ID. HELLO-WORLD. (Cd{#j<
z "$d5XR
ENVIRONMENT DIVISION. !Fg4Au
EQOP?>mWx!
DATA DIVISION. v:Z4z6M-
=/QU$[7X(
PROCEDURE DIVISION. -hFyqIJW
DISPLAY "Hello, world!". (s@tU>4U
STOP RUN. ! }?jCp p
x`6^+>y^
Sc$8tLDLj
Common Lisp -@V"i~g<e
(format t "Hello world!~%") po2[uJ
S{(p<%)[
>aC\_Mc
DOS批处理 U;Ll.BFP
@echo off SP?U@w%}
echo "Hello, world!" ~& WN)r'4y
m5em<P!G
9}jq`xSL
Eiffel o),6o'w(
class HELLO_WORLD b' oGt,
i$^B-
creation LUDJPIk
make l*\~ew
feature kAB+28A
make is 1.95 ^8
local Sa1z,EP
io:BASIC_IO Cq*}b4^;
do I`'a'
!!io <k\H`P
io.put_string("%N Hello, world!") Ph+X{|
end -- make H&=n:'k^
end -- class HELLO_WORLD 0+<eRR9-
d=Df.H+3
8lWH=kA\
Erlang 7.e7Fi{
-module(hello). E R]sDV
-export([hello_world/0]). RE>ks[
bH\C5zt6(
hello_world() -> io:fwrite("Hello, World!\n"). o`\.I&Ij
M,t*nG
S'!q}|7X3
Forth 6vgBqn[
." Hello, world!" CR jkF+g$B
4j@i%
F?8BS*r_
Fortran )W1(tEq59
WRITE(*,10) 0Ws;|Yg
10 FORMAT('Hello, World!') 6hM]%
STOP zRV!(Y
END (/SGT$#8
,'C30 A*p
iIsEQh
HTML /BMtcCPG!
<HTML> eB=v~I3
<HEAD> bR`rT4.F
<TITLE> Hello World! </TITLE> MCk^Tp!
</HEAD> zb5N,!%r
<BODY> ,M)k7t:
<p>Hello World!</p> -=$% {
</BODY> $T?*0"Mj[
</HTML> x"
'KW
(
2'wr={>W
"F-Y^
HQ9+ 'ySljo*It
H }xDB ~k
}iilzE4oH#
v@8S5KJ
INTERCAL N%9h~G
PLEASE DO ,1 <- #13 hCzjC|EO~
DO ,1 SUB #1 <- #238 >dpbCPJ9[
DO ,1 SUB #2 <- #112 8zdT9y|Ig
DO ,1 SUB #3 <- #112 ^
<qrM
DO ,1 SUB #4 <- #0 oi2J:Y4
DO ,1 SUB #5 <- #64 aSOU#Csx
DO ,1 SUB #6 <- #238 }A{_L6qx
DO ,1 SUB #7 <- #26 ;rd6ko
DO ,1 SUB #8 <- #248 \bhOPK>w
DO ,1 SUB #9 <- #168 M@|w[ydQG
DO ,1 SUB #10 <- #24 U~aWG\h#X
DO ,1 SUB #11 <- #16 )YuRjBcp,"
DO ,1 SUB #12 <- #158 +}Xr1fr{jw
DO ,1 SUB #13 <- #52 (/"thv5vT{
PLEASE READ OUT ,1 Bvz62?
PLEASE GIVE UP Wk@
eV\H71
q0&Wk"X%rr
<rNtY ,
Java ht?CHUu
public class Hello I-xwJi9?,
{ : *ERRSL)
public static void main(String[] args) D"L|"qJ
{ cV-i*L4X
System.out.println("Hello, world!"); P7z:3o.
} ~32Pjk~
} 6wPeb~{
jOs
H2^
BBcj=]"_
JSP '/k^C9~m
r
<% Bg-VCJI<
out.print("Hello, world!"); #c-b}.R
%> MDk*j,5V
+%P t_
Vo%Yf9C
MIXAL TfJL+a0
TERM EQU 19 the MIX console device number kLJlS,nh\r
ORIG 1000 start address wG+=}1X
START OUT MSG(TERM) output data at address MSG o]A XT8
HLT halt execution ;Xqn-R
MSG ALF "MIXAL" d7* CwY9"
ALF " HELL" Yi 6Nw+$
ALF "O WOR" Rho5s@N 7
ALF "LD " @0$}?2
END START end of the program HOfF"QAR$
qNpu}\L
N[pZIH5ho=
Nuva 5.wiTy
<..直接输出..> lr WLN
Hello, world! 34SA~5
E#8_hT]5
<..或者..> gI)u}JX
+ 3h`UF
<. "%VbI P
// 不带换行 V]rhVMA
? "Hello, world!" ;1v=||V
hyfR9~
// 或者 _?.\Xc
Pey//U
// 带换行 iNQ0p:<k
?? 'Hello, world!' 22>;vM."
.> m%pBXXfGYj
3L>d!qD
=L"^.c@
OCaml 40 2x<H
let main () = ym\(PCa5`
print_endline "Hello world!";; ryg4hHspl
[ByQ;s5tY
.]P2}w)x?
Pascal oU8>Llt=$
program Hello; u_LY\'n
begin ACb/ITu
writeln('Hello, world!'); lyyX<=E{)
end. 9x?B5Ap[
}p=g*Zo*C;
ZHCr2^w6
Perl Q[uAIyv0
#!/usr/local/bin/perl 77*qkKr
print "Hello, world!\n"; cx{T
'1
D{cZxI
# ORO&78
PHP Rn-G
@}f
<?php W5.Va.
print("Hello, world!"); dv, C6t2
?> ?g3 ]~;#
fywvJ$HD]L
k9mi5Oc
Pike *_1[[~Aw
#!/usr/local/bin/pike U]1(&MgV
int main() \0ov[T N.>
{ !,Nwts>m
write("Hello, world!\n"); R"3
M[^
return 0; v0#*X5C1'
} {oUAP1V^
j)Y[4 ^k^
*tc{vtuu~^
PL/I %v{1#~u
Test: procedure options(main); Ly7!R$X
declare My_String char(20) varying initialize('Hello, world!'); H-I{-Fm
put skip list(My_String); ~zF2`.
end Test; ,
ECLqs%
a
}'->H
pjwaL^
Prolog -Wc~B3E|
goal _6MdF<Xb/
write("hello,world!"). v$Uhm</|19
X3wX`V}
'e@=^FC
Python _dU8'H
#!/usr/local/bin/python 26L~X[F
print "Hello, world!" MR$>!Nlp
HI`q1m.
dlD ki.
REXX ufrqsv]=
say "Hello, world!" Bu3T/m
`#Kx|x6
^aF8wbuZ
Ruby \?Mf _
#!/usr/bin/ruby [h&BAR/ 2
print "Hello, world!\n" c*;7yh&%
%}&(h/= e
S&(^<gwl
Scheme ^$-Ye]<
(display "Hello, world!") r?A|d.Tl
(newline) \.#p_U5In
A&,,9G<
]|U-y645
sed (需要至少一行输入) ECcZz.
sed -ne '1s/.*/Hello, world!/p' l&W;b6L
y3eHF^K+$
>MG(qi
Smalltalk A6{b?aQ
Transcript show: 'Hello, world!' B= X,7
zl%>`k!>
6X)@ajGWg~
SNOBOL yz\c5
OUTPUT = "Hello, world!" !kL> ,O>/
END wO.iKX;
*5VXyt2
%gd(wzco
SQL mC[UXN/
create table MESSAGE (TEXT char(15)); -*a?<ES`
insert into MESSAGE (TEXT) values ('Hello, world!'); MCc$TttaVz
select TEXT from MESSAGE; @5VV|Wt=
drop table MESSAGE; "D][e'
6!q#x[A
^ qvZ XS
Tcl @=Fi7M
#!/usr/local/bin/tcl %ow^dzW
puts "Hello, world!" z[EFQ^*>
H'= (`
e3(/qMl
TScript 6l\FIah@
? "Hello, world!" :G5RYi
',I0ih#Ls
'5KeL3J;
Turing atF?OP|{,w
put "Hello, world!" v~|?3/{Q
XYEv&-M`?w
f)Xr!7
UNIX-style shell <F=9*.@D
程序中的/bin/sh可改为您使用的shell Uf\nFB? ^
XfYC7-e9c
#!/bin/sh j&R+2%
echo 'Hello, world!' ArK]0$T
I?Aj.{{$G%
)C%N]9FvY
GUI kA wNly
i38[hQR9a
Delphi [KJ
q
program HelloWorld; q,>?QBct*
uses YDC&u8
Dialogs; ZD>a>]
begin TX [%(ft
ShowMessage('Hello, World!'); qMYe{{r
end. 8,"yNq
x_#-tB
\G|%Zw|
Nuva v(]]_h
<. .dMVoG5
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) %
ps$qB'
.> J% H;%ROx
[K/m
lj=l4 &.i
Visual Basic *l&S-=]
MsgBox "Hello, world!" eYX5(`c[
'或者 ufV!+$C)is
Print "Hello, world!" bi4f]^hQz
A]0:8@k5
*J|(jdu7
Visual FoxPro <[:o !$
? "Hello, world!" ?:{sH#ua
"es?=
.
#lsic8]
X11 7nq3S
用一个程序 <S75($
ikD1N
xmessage 'Hello, world!' [BBEEI=|r
~@ jY[_
用C++和gtkmm 2 \b=Pj!^gwb
$Xm6N@
#include <iostream> q$(5Vd:
#include <gtkmm/main.h> !~]<$WZV
#include <gtkmm/button.h> }Ew hj>w
#include <gtkmm/window.h> j^tW
Iz
using namespace std; 39wa|:I
Vwk #qgnX
class HelloWorld : public Gtk::Window zq+o+o>xo
{ u9+kLepOT
public: uDw.|B2ui
HelloWorld(); jHXwOJq
%
virtual ~HelloWorld(); 'y]\-T
protected: [u}(57DS
Gtk::Button m_button; >MK>gLg}!
virtual void on_button_clicked(); *Xo]-cKL0
}; (+uj1z^
tGA :[SP
HelloWorld::HelloWorld() : m_button("Hello, world!") [r+ZE7$2b"
{ 0:0NXVYs&
set_border_width(10); ui q^|5Z
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); qyC=(v
add(m_button); 'r1LSht'
m_button.show(); !`1'2BC
} 8r"+bhGx~
<f CKUc
HelloWorld::~HelloWorld() {} eW5SFY.
Q+4tIrd+
void HelloWorld::on_button_clicked() h$eEn l}
{ d8-A*W[
cout << "Hello, world!" << endl; F
} jZ`;Cy\<B
v>z tB,,9
int main (int argc, char *argv[]) akw,P$i
{ 3rLTF\
Gtk::Main kit(argc, argv); ['8!qr
HelloWorld helloworld; _@S`5;4x
Gtk::Main::run(helloworld); |@NiW\O
} ljl^ GFo
@36u8pE
z[`@}}Q
Java Zo1,1O
import java.awt.*; ,h"-
import java.awt.event.*; "&Po,AWa
2'=T[<nNB
public class HelloFrame extends Frame s3 7'&K
{ Z{&cuo.@<]
HelloFrame(String title) s0Z
uWVip
{ X7k.zlH7T
super(title); @(r/dZc
} hI9
public void paint(Graphics g) __mF?m
{ BIuK @$
super.paint(g); \%UkSO\nO3
java.awt.Insets ins = this.getInsets(); V#VN%{
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 7{&|;U
} &0f5:M{P
public static void main(String args []) %v20~xW:o
{ df7wN#kO+
HelloFrame fr = new HelloFrame("Hello"); N F)~W#
#o1=:PQaC
fr.addWindowListener( 6Gf?m;
new WindowAdapter() /Q,mJ.CnSR
{ MEB it
public void windowClosing(WindowEvent e) RX/hz|
{ vWAL^?HUP
System.exit( 0 ); I`NjqyTW
} #g6.Glz3
} E>l~-PaZY
); 98^V4maR:
fr.setResizable(true); t!RiU ZAo
fr.setSize(500, 100); !47n[Zs
fr.setVisible(true); <[w=TdCPs
} #%DE;
} t.mVO]dsj
-GxaV #{
B}^w_C2
Java Applet Hh+ 2mkg
Java Applet用于HTML文件。 eM8}X[
'-zD
HTML代码: dAuJXGo
82l~G;.n3
<HTML> &jmRA