“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。 |^Z1 D TAw
V#|#%
8
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》。 jcN84AaRFI
MwL'
H<
以下是用不同语言写成的Hello World程序的几个例子: `pN"T?Pk
Ada d5]9FIj
with Ada.Text_Io; use Ada.Text_Io; Y*O7lZuF%
procedure Hello is xUPM-eF=
begin ,:QG%Et
Put_Line ("Hello, world!"); [bJ/$A
end Hello; X4&{/;$
:KZI+
7CABM
汇编语言 )__vPPko i
)ye[R^!}
x86 CPU,DOS,TASM ^DVr>u
MODEL SMALL bc5+}&W
IDEAL ";9cYoKRY
STACK 100H +}>whyX1
?{$Q'c_I
DATASEG yEtSyb~GK
HW DB 'Hello, world!$' U}6'_ PRQ
/9|1eSUa
CODESEG )dG7$,g
MOV AX, @data X^?<, Y)1.
MOV DS, AX R*E/E
MOV DX, OFFSET HW \rcbt6H
MOV AH, 09H NyJU?^f&v
INT 21H Et%s,zeA{2
MOV AX, 4C00H x';6
INT 21H <[?oP[ j
END G[r_|-^S
OAR1u}
pQ*9)C
x86 CPU,GNU/Linux,NASM U#+S9jWe
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 0X`Qt[
;Enter this into "hello.asm" then type: ss% ahs
;"nasm -f elf hello.asm" CY0|.x
;"ld hello.o -o hello" $B*E k>EK
;"./hello" RqXcL,,9
vd SV6p.d
section .data ;data section declaration 4<70mUnt
msg db 'Hello World!',0AH 5P
-IZ8~$
len equ $-msg ;string length U{RW=sYB~9
IQoz8!guh:
section .text ;code section declaration 85m[^WGyh
global _start ;entry point (start of execution) v@LK3S/!3
_start: mov edx,len ;string length >yg mE`g
mov ecx,msg ;string start cG,B;kMjo
mov ebx,1 ;file handle: stdout AR]y p{NS
mov eax,4 ;sys_write K/+5$SjF
int 80h ;kernel system call K&9|0xt
*Z KI02M
mov ebx,0 ;return value WHqp7NPl
mov eax,1 ;sys_exit ^T)HRT-k
int 80h ;kernel system call 7tfMD(Q]e/
ly}6zOC\
?2%d;tW
x86 CPU,Windows,MASM32 .Hl]xI$;+
.386 -B9C2
.model flat,stdcall mgL~ $
option casemap:none #c'yAa
;Include 文件定义 F5gL-\6
include windows.inc ?7@B$OlU
include user32.inc 8uM >Up X
includelib user32.lib :f ybH)*
include kernel32.inc KFdV_e5lU
includelib kernel32.lib nyi}~sB
;数据段 Av^{$9yl
.data f`.8.1Rd
szCaption db 'A MessageBox!',0 O>wGc8Of\
szText db 'Hello,world!',0 `ndesP
;代码段 LgjL+w19
.code IwKhun
start: y!6B Gz
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK `Ff3H$_*
invoke ExitProcess,NULL KIC5U50J
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> d `>M-:dF
end start &xgMqv2/
s-}|_g.Pt
s&iM.[k
AWK ~jH@3\
?-
BEGIN { print "Hello, world!" } tU>wRw=d
G6w&C^J*8>
A9Q!V01_
BASIC mFjX
传统版BASIC(例如GWBASIC): ?!U=S=8
e ,/I}W
10 PRINT "Hello, world!" u&/q7EBfP
20 END l{>fma]7
$]%;u: Sa
或在提示符输入: /WRS6n
2BXpk^d5y
?"Hello, world!":END z~L''X7g
}Xr-xh\v
现代版BASIC(例如Quick BASIC): w0)V3
{^i7 3}@O
Print "Hello, world!" pzbR.L}'D
8V >j-C
以下的语句在Quick BASIC中同样有效: .mn`/4
{(w/_C9
? "Hello,world!" =${]j
h$)(-_c3
!jN}n)FSq
BCPL 1 "?KQU
GET "LIBHDR" [4"1TyW
"=@b>d6U+
LET START () BE SG_^Rd9
D
$( L{jJDd
WRITES ("Hello, world!*N") :tp2@*]9Z
$) :6S!1roi
1 !bODd
Y ( x_bJ
Befunge %obR2%
"!dlrow olleH">v %'a%ynFs
, <+o-{{E[
^_@ 9un]}7^
z}.y
?#
j5,1`7\7B
Brainfuck B8UtD
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< veAg?N<c
p
+++++++++++++++.>.+++.------.--------.>+.>. C8rD54A'M
I|9(*tq)
G#gUd'=M
C lYmqFd~p
#include <stdio.h> (4cWq!ax<$
^q5~;_z|
int main(void) a
yn6k=F
{ \
T/i]z
printf("Hello, world!\n"); nDuf<mw
return 0; i]J*lM7'
} njeRzX
>/mi#Y6
~T@t7Cg
C++ m^0r9y,
#include <iostream> 7 4Xk^8
=}>wxO
int main() <_$]!Z6UR
{ [ -"o5!0<
std::cout << "Hello, world!" << std::endl; BLZ#vJR
return 0; 2_ M+akqy^
} 4
AZ~<e\
TP o%zZo
z%$ E6Im
C++/CLI oFM\L^Y?$$
int main() oNQ;9&Z,^2
{ wgfA\7Z
System::Console::WriteLine("Hello, world!"); .] mYpz
} (;v)0&h
oJa6)+b(3
YL-/z4g
C# (C Sharp) U/F<r3.`#
class HelloWorldApp _OV\W'RrA
{ w}No ^.I*4
public static void Main() 6(awO2{BP
{ N`XJA-DE
System.Console.WriteLine("Hello, world!"); 56gpAc
} g?`g+:nug
} .w2QiJ
;, P-2\V/
uT'_}cw
COBOL rE0?R(_
IDENTIFICATION DIVISION. h07Z.q ;
PROGRAM-ID. HELLO-WORLD. L1=3_fO
K*iy ^}
ENVIRONMENT DIVISION. ,<?iL~> %
d\aKGq;8C
DATA DIVISION. u>c\J|K_V
?#;
oqH<
PROCEDURE DIVISION. ^2f'I iE
DISPLAY "Hello, world!". 7jvy]5y8&~
STOP RUN. GslUN% UJr
HDQhXw!!hc
T'\B17
:*
Common Lisp !OWPwBm;
(format t "Hello world!~%") u.;zz'|
3ThBy'
4w,=6|#
DOS批处理 J-*&&
@echo off W}m-5L
echo "Hello, world!" #vrxhMo
qu]ch&"?U
Yhdt"@;..
Eiffel 1HQh%dZZ
class HELLO_WORLD ?#8',:
O@JgVdgf
creation
Y g>W.wA
make &y`
MDyXz
feature ' >(])Oq,
make is Y `4AML
local 1'ne[@i^/
io:BASIC_IO sX&.8
do d"3S[_U
!!io tHNvb\MR$
io.put_string("%N Hello, world!") jVP70c
end -- make w-2&6o<n-
end -- class HELLO_WORLD QZy+`
|GuIp8~
we'<Y
Erlang D|-^}I4
-module(hello). x._IP,vRx^
-export([hello_world/0]). ?^Sk17G
yXU-@~
hello_world() -> io:fwrite("Hello, World!\n"). gcYx-gA}
csn/h$`-@
D'V0b"
Forth TDI8L\rr
." Hello, world!" CR wMy$T<:
m"Y;GzqQl
xml@]N*D#E
Fortran &`>[4D*
WRITE(*,10) kPwgayz
10 FORMAT('Hello, World!') 7#n<d879e%
STOP oI=7X*B9
END Rz}?@zh_8
n}==
\PS{/XK
HTML (IXiwu
<HTML> ^l1tQnj)7
<HEAD> 0_yE74i
<TITLE> Hello World! </TITLE> F#=XJYG1
</HEAD> @|Z:7n6S
<BODY> :xw2\:5~0
<p>Hello World!</p> Ov3W;jD
</BODY> 34VyR
a
</HTML> -q7A\8C
4R!A.N 9
WelB+P2
HQ9+ hoxn! x$?
H X!5N2x
b i^h&H
_`lj
3Lm0>
INTERCAL g*b
4N_
PLEASE DO ,1 <- #13 9 tZ)#@\
DO ,1 SUB #1 <- #238 9xWC<i
DO ,1 SUB #2 <- #112 KDwz!:ye
DO ,1 SUB #3 <- #112 htc& !m
DO ,1 SUB #4 <- #0 \RN,i]c-g/
DO ,1 SUB #5 <- #64 -_=0PW5{
DO ,1 SUB #6 <- #238 MLg<YL
DO ,1 SUB #7 <- #26 e;b,7Qw
DO ,1 SUB #8 <- #248 L(!4e
DO ,1 SUB #9 <- #168 g-'y_'%0G
DO ,1 SUB #10 <- #24 mhTpR0
DO ,1 SUB #11 <- #16 ZK5(_qW&i
DO ,1 SUB #12 <- #158 3oX%tx
DO ,1 SUB #13 <- #52 }aYm86C]
PLEASE READ OUT ,1 9@AGx<S1
PLEASE GIVE UP %VYQz)yW
G)gf +)W
xw: v|(
Java >yvP[$]!6
public class Hello !mFo:nQ)}
{ f uojf+i
public static void main(String[] args) ;SQ<^"eK
{ Wd4fIegk
System.out.println("Hello, world!"); L/(e/Jalg
} 2&91C[da0
} E
[JXQ76
9dA(f~
P8NKpO\
JSP )gdv!
<% ||
?B1
out.print("Hello, world!"); Ab7hW(/
%> /uI/8>p(
b~06-dk1
ulFU(%&
MIXAL o;Ijv\Em
TERM EQU 19 the MIX console device number eux_tyC
ORIG 1000 start address w?ssV
START OUT MSG(TERM) output data at address MSG ^)N[x''a
HLT halt execution q3Umqvl)oe
MSG ALF "MIXAL" sBuJK'
ALF " HELL" LLmgk"
ALF "O WOR" tW5\Ktjno
ALF "LD " a:@9GmtV&
END START end of the program ]i*q*]x2u
&QE^i%6>\
';V(sRU@
Nuva [i[G" %Q
<..直接输出..> vZ
4Z+;.
Hello, world! Y~1}B_
jIE>t5 fy
<..或者..> 322W"qduTZ
Qv8#{y@U
<. T\c;Ra
// 不带换行 ?>MD /l(l
? "Hello, world!" A(_AOoA'
B%6bk.
// 或者 L5T)_iQ5
Ary$,3X2
// 带换行 nR/; uTTz
?? 'Hello, world!' ,r5<v_
.> r0G#BPgdR
0 w\X
DjOFfD\MF
OCaml B0=:A
let main () = 2a.NWJS
print_endline "Hello world!";; pALB[;9g
)xQxc.
M)Rp+uQ
Pascal
hM\QqZFyp
program Hello; ~m!>e])P?X
begin qq-&z6;$
writeln('Hello, world!'); g|<)J-`Q
end. =khjD[muC
X2@mQ&n
<6<uO\B\
Perl w:FH2*
#!/usr/local/bin/perl &_4A6
print "Hello, world!\n"; UTA0B&aB
wdBytH6r.
?3SlvKI}H`
PHP ?f']*pD8
<?php z+" :,#
print("Hello, world!"); }#!o^B8
?> v ;MI*!E
%W"\
PkDL\Nqe
Pike x|0Q\<mEe
#!/usr/local/bin/pike b("CvD8
int main() 4NR,"l)
{ miS+MK"
write("Hello, world!\n"); 3\=8tg p
return 0; HKOJkbVZ2^
} u
MzefRN
nWFp$tJ/R
~$r^Ur!E\
PL/I ^e@c
Ozt
Test: procedure options(main); 6}iIK,Om
declare My_String char(20) varying initialize('Hello, world!');
OD\x1,E)I
put skip list(My_String); CyG @
end Test; w** .8]A"N
>qtB27jV
_?G\^^
Prolog KH pxWq
goal {w!}:8p
write("hello,world!"). m.K"IXD
Rp`}"x9
l^$:R~gS
Python PNc200`v4_
#!/usr/local/bin/python vJ"@#$.
print "Hello, world!" 9q* sR1
Br#]FB|tD
]
{NY;|&I'
REXX J=zZGd%
say "Hello, world!" =1yUH9\,b
BOwkC;Q[
~Ag!wj
Ruby Q]6nW[@j'
#!/usr/bin/ruby ?'T>/<(
print "Hello, world!\n" $Fr2oSTT)
M8juab%y
rcI(6P<*
Scheme ;uoH+`pf
(display "Hello, world!") K?I@'B'
(newline) "#4PU5.
-D!F|&$
I*lq0&
sed (需要至少一行输入) boN)C?"^h
sed -ne '1s/.*/Hello, world!/p' P\2QH@p@t
]-* }-j`
O)9T|,
U
Smalltalk PI?-gc?[
Transcript show: 'Hello, world!' JC =Bxv
8:s3Q`O
Z]SCIU @+
SNOBOL Nm,vE7M
OUTPUT = "Hello, world!" <[~x]-
END W
8E<P y
e'\I^'`!M
p~3CXmUc~
SQL ; $y.+5 q
create table MESSAGE (TEXT char(15)); v11mu2
insert into MESSAGE (TEXT) values ('Hello, world!'); H[>_LYZ8
select TEXT from MESSAGE; }Bc6:a
drop table MESSAGE; -CL7^
'|FM|0~-J
c7iu[vE'+
Tcl J=\Y 4- "
#!/usr/local/bin/tcl iicrRGp3
puts "Hello, world!" 9 l,Gd
p^L6uM
qbP[ 9
TScript j ^_G
? "Hello, world!" 2iH,U
.5dZaI)
,Y`C7Px
Turing ?<nz2 piP,
put "Hello, world!" H<NYm#a"
1/&j'B
P%/+?(?
UNIX-style shell -9aht}Z
程序中的/bin/sh可改为您使用的shell 'm2,7]
x &9I2"
#!/bin/sh <c\aZ9+V
echo 'Hello, world!' B]Zsn`n
LG,RF:
e,4!/|H:
GUI =r_ SMTu
Mb<KZ_wYOX
Delphi N`zHe*=[~
program HelloWorld; g:2/!tujL
uses mB1)!
Dialogs; rBny*! n
begin BR0bf5T/
ShowMessage('Hello, World!'); _O rE{
end. Y/$SriC_+'
_8S).*
J@Orrz2q#
Nuva _X]?
<. |/<iydP
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) m.^6ef
.> aoJ&< vl3
{;-$;\D
RMvlA'c
Visual Basic yGD0}\!n
MsgBox "Hello, world!" \4vFEJSh
'或者 x`lBG%Y[-v
Print "Hello, world!" gq0gr?
P0z "Eq0S
1gt[_P2u
Visual FoxPro ~P/G^cV3s
? "Hello, world!" KGI]W|T
b#y}VY)?
QWxQD'L'
X11 N\Hd3Om
用一个程序 8bK}&*z<
[]Fy[G.)H
xmessage 'Hello, world!' 4o=G) KO{
X'u`\<&W
用C++和gtkmm 2 |BW956fBU
}YSH8d
#include <iostream> )8k6GO8|
#include <gtkmm/main.h> p5[uVRZ
#include <gtkmm/button.h> -!}1{
#include <gtkmm/window.h> 1u`Z?S(
using namespace std; S\X_!|
x[?_F
class HelloWorld : public Gtk::Window B#gmT2L
{ es6e-y@e
public: pE`(kD
HelloWorld(); \UC4ai2MK
virtual ~HelloWorld(); 1rKR=To
protected: .DX#:?@4@Y
Gtk::Button m_button; [Dt\E4
virtual void on_button_clicked(); z7K?rgH
}; "ulaF+
JBYQ7SsAS0
HelloWorld::HelloWorld() : m_button("Hello, world!") qJK^i.e
{ 2cDC6rul
set_border_width(10); Wu}Co
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ._R82gy
add(m_button); "d#s|_n,d)
m_button.show(); #zQkQvAT9
} 4-"wFp
XmnqZWB
HelloWorld::~HelloWorld() {} IX>|bA;
~ 52
void HelloWorld::on_button_clicked() q"cFw${
{ t"L:3<U7
cout << "Hello, world!" << endl; \Dc\H)
} v_ J.M ]
L"Gi~:z
int main (int argc, char *argv[]) *[U:'o`67
{ q+DH2&E'
Gtk::Main kit(argc, argv); z6!X+`&
HelloWorld helloworld; 'l}3Iua6qk
Gtk::Main::run(helloworld); vIRE vj#U
} QZfPd\Q5
mA."*)8VNg
@Yg7F>s
Java ::R^ w"
import java.awt.*; h1Lp:@:|
import java.awt.event.*; \uYUX~}i"
>hhd9
public class HelloFrame extends Frame <
d]|5
{ kal8k-$#
HelloFrame(String title) s=$ 7lYX
{ xvkof
'Q)
super(title); yO6i "3
} u7;A`
public void paint(Graphics g) dnx}c4P
{ GGBe/X
super.paint(g); a~%ej.)l
java.awt.Insets ins = this.getInsets(); _c&*'IY[V
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); pta%%8":
} |Bn=$T]
public static void main(String args []) .$yw;go3
{ 4/jY;YN,2
HelloFrame fr = new HelloFrame("Hello"); J!H5{7.efN
w(yU\
N
fr.addWindowListener( 08f~vw"
new WindowAdapter() 1_t Dp&UO
{ .
9
NS
public void windowClosing(WindowEvent e) q!,do2T
{ </%H 'V@
System.exit( 0 ); 7mjj%
} e\dT~)c
} sV6A&