“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。 h7eb/xEto
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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》。 $\m:}\%p
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以下是用不同语言写成的Hello World程序的几个例子: ]HWeVhG
Ada mBL?2~M
with Ada.Text_Io; use Ada.Text_Io; g8/ ,E-u
procedure Hello is eJf]"-
begin 8A0a/
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Put_Line ("Hello, world!"); wtbN@g0
end Hello; rrC\4#H[??
"7-}#_!g
|zRrGQYm
汇编语言 BuvnY
kh}h(z^
x86 CPU,DOS,TASM n:a~=^IV
MODEL SMALL oHfr
glGX
IDEAL {*;K>%r\o
STACK 100H 6lpJ+A57#
n3?
msY(*
DATASEG T:
My3&6
HW DB 'Hello, world!$' %4R1rUrgt|
IT#Li
CODESEG GsO(\hR6^
MOV AX, @data "kFNOyj3\
MOV DS, AX ;[4=?GL*
MOV DX, OFFSET HW ?}KD<R
MOV AH, 09H ml2/}}
INT 21H 4YY!oDN:
MOV AX, 4C00H u-jV@Tz
INT 21H e2fv%
END 1\{FK Ot
yFd .tQs
u)zv`m
x86 CPU,GNU/Linux,NASM 8mOGEx
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). eU)QoVt
;Enter this into "hello.asm" then type: KL!cPnAUu
;"nasm -f elf hello.asm" >Q_
'[!S
;"ld hello.o -o hello" @#^Y#
rxb
;"./hello" yIr0D6L
}Z\S__\9
section .data ;data section declaration Q(Yn8t
msg db 'Hello World!',0AH y5KeUMcu
len equ $-msg ;string length p,f$9t4
NB44GP1-@
section .text ;code section declaration ue?3;BF 5
global _start ;entry point (start of execution) kVCWyZh4
_start: mov edx,len ;string length qnQ".
mov ecx,msg ;string start 30SQ&j[N]
mov ebx,1 ;file handle: stdout -da: j-_
mov eax,4 ;sys_write mJ(ElDG
int 80h ;kernel system call y$di_)&g
>hSu1s:
mov ebx,0 ;return value rtbV*@Z
mov eax,1 ;sys_exit gH,Pz
int 80h ;kernel system call m6^#pqSL
f.%3G+
F?jD5M08t/
x86 CPU,Windows,MASM32 _iDVd2X"H
.386 1M_Vhs^
.model flat,stdcall gMZ+kP`
option casemap:none N^wHO<IO1
;Include 文件定义 VR1[-OE
include windows.inc WI*CuJU<zJ
include user32.inc vf#d
includelib user32.lib rH,@"(p\
include kernel32.inc }kItVx
includelib kernel32.lib K1R?Qt,qDF
;数据段 9LBZMQ
.data .#iot(g
szCaption db 'A MessageBox!',0 |*b-m k
szText db 'Hello,world!',0 E`@Z9k1 `
;代码段 ~b
X~_\
.code k?L2LIB<
start: !\BM
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK I
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invoke ExitProcess,NULL '+vmC*-I(
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> E8R;S}PA
end start a]%sks
-])=\n!=
o[WDPIG
AWK E,K>V:P*
BEGIN { print "Hello, world!" } Y6)o7t
bi",DKU{l
|Ox='.oIb
BASIC gJ9"$fIPc
传统版BASIC(例如GWBASIC): Y.tT#J^=
Ok\X%avq
10 PRINT "Hello, world!" Q[q`)~|
20 END T*=*$%
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或在提示符输入: &dK!+
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?"Hello, world!":END W\w#}kY
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现代版BASIC(例如Quick BASIC): fn5-Tnsq*
q TN)2G
Print "Hello, world!"
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以下的语句在Quick BASIC中同样有效: ]{\M,txo8
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? "Hello,world!" M3|G^q:l
dkCUU
5E~^-wX
BCPL <LXx_{=:
GET "LIBHDR" xh9$ZavB*
>zL5*:G
LET START () BE m_Q&zp["
$( )
< U9
WRITES ("Hello, world!*N") c>>.>^5
$) 1 ^= QIX
uZJfIC<>
g|$;jQ\_
Befunge h4F%lGot
"!dlrow olleH">v 3/Z>W|w#w
, ez*QP|F*9
^_@ /T(9:1/G
> l0H)W
udLI AV*
Brainfuck vW vu&3tx
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< y5+%8#3
+++++++++++++++.>.+++.------.--------.>+.>. iT,7jd?6#
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fHH
C xb9+- {<J
#include <stdio.h> /"u37f?[^
^V96lKt/
int main(void) ;`:YZ+2
Z
{ p@4GI[ 4
printf("Hello, world!\n"); |C<#M<
return 0; h3 XSt
}
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<"P-7/j3j
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C++ [x>Ju&))$
#include <iostream> je2_.^
+?m.uY(
int main() 1d]F$>
{ ow3.jHsLA
std::cout << "Hello, world!" << std::endl; T:Klr=&V
return 0; zN|k*}j1J
} uij^tN%
wL
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M%!;5
C++/CLI B<m0YD?>~>
int main() H%>4z3n
{ lYQ|NL():
System::Console::WriteLine("Hello, world!"); RE%f'y
} V\<2oG
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)n
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C# (C Sharp) =ZIT!B?4
class HelloWorldApp l_+@Xpl
{ x
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public static void Main() A:r?#7 Ma
{ K -rR)-rI
System.Console.WriteLine("Hello, world!"); FHSoj=
} V<0iYi;4=
} CPP~,E_
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cZ?QI6|[
COBOL d-UeItyW*
IDENTIFICATION DIVISION. rXX>I;`&
PROGRAM-ID. HELLO-WORLD. D'#Q`H
+hmFFQQ}
ENVIRONMENT DIVISION. @9gZH_ur>E
g8%O^)d=>
DATA DIVISION.
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ns8s2kYcm
PROCEDURE DIVISION. LEgP-sW
DISPLAY "Hello, world!". {G:y?q'z
STOP RUN. XZM3zlg*
:-k|jt
`S@TiD*
Common Lisp pD732L@q
(format t "Hello world!~%") e /JQ #A
Mn.,?IF`K
GlAI~ \A
DOS批处理 "n!yK
@echo off ~t`s&t'c|
echo "Hello, world!" 5G*cAlU
m.e]tTe
H,!xTy"Wh
Eiffel Z .6dL
class HELLO_WORLD 3yZmW$E.
g\JJkXjD#
creation `Z?wj@H1`
make ~f1g"
feature R2~Tr$:
make is i<m(neX[H
local T
pkSY`T
io:BASIC_IO &7aWVKon
do 9oWU]A\k>
!!io 0mY Y:?v
io.put_string("%N Hello, world!") fd\RS1[
end -- make yw3"jdcl
end -- class HELLO_WORLD Sjpx G@k
_!\d?]Ya
S\k <
Erlang M?$[WS
-module(hello). !_<6}:ZB
-export([hello_world/0]). ff"wg\O4
|\5^ub,m
hello_world() -> io:fwrite("Hello, World!\n"). SUncQJJ0S*
q+
$6D;9
RK>Pe3<
Forth #WpkL]g2+%
." Hello, world!" CR 1 DWoL}Z
NO"PO
@&Wk
_'u]{X\k{J
Fortran /0h
*(nL
WRITE(*,10) wbO6Ag@))
10 FORMAT('Hello, World!') k*.]*]
STOP RgE`H r
END )*,/L <
5,RUPaE
%`vzQt`>
HTML (!os&/",
<HTML> n/H
OP
<HEAD> i=8iK#2 h
<TITLE> Hello World! </TITLE> gg;r;3u
</HEAD> \U~4b_aN
<BODY> [|u^:&az
<p>Hello World!</p> V|7YRa@
</BODY> R$a<=
</HTML> !QUY (
(JhX:1
YdY-Jg Xm
HQ9+ R`?l.0
H i%glQT
PJnC
Y4T")
INTERCAL "}]`64?
PLEASE DO ,1 <- #13 WA{igj@\
DO ,1 SUB #1 <- #238 +>w]T\[1~
DO ,1 SUB #2 <- #112 prBLNZp
DO ,1 SUB #3 <- #112 SGd]o"VF
DO ,1 SUB #4 <- #0 @u3`lhUcT
DO ,1 SUB #5 <- #64 yoi4w 7:
DO ,1 SUB #6 <- #238 NzRvb j]
DO ,1 SUB #7 <- #26 aD/Rr3v>
DO ,1 SUB #8 <- #248 r;cDYg
DO ,1 SUB #9 <- #168 z(PUoV:?
DO ,1 SUB #10 <- #24 mp|pz%U
DO ,1 SUB #11 <- #16 0QQss
DO ,1 SUB #12 <- #158 yu?5t?vf
DO ,1 SUB #13 <- #52 Ur j*V0^
PLEASE READ OUT ,1 E3L?6Qfx>
PLEASE GIVE UP
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TyxIlI4"
E(qYCafC
Java wak 26W>I3
public class Hello !\]^c
{ 4"@<bKx
public static void main(String[] args) a"~o'W7
{ (5a73%>@
System.out.println("Hello, world!"); MsB>3
} fV:15!S[
} c?::l+
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[f6uwp
JSP t2&kGf"
<% :WhJDx`j
out.print("Hello, world!"); }v1wpv/b(
%> >DL
>WLPE6E
r)(5,*v
MIXAL FU|brSt
TERM EQU 19 the MIX console device number npP C;KD
ORIG 1000 start address !U`&a=k
START OUT MSG(TERM) output data at address MSG N_t,n^i9>*
HLT halt execution (1/Sf&2i
MSG ALF "MIXAL" OhF55,[
ALF " HELL" F<4rn
ALF "O WOR" ;w{<1NH2+.
ALF "LD " `CK~x=
END START end of the program M,Gy.ivz
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GR,2^]<{
Nuva $+gQnI3w
<..直接输出..> Ht`fC|E
Hello, world! 01bCP
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<..或者..> n}p G&&;q
<,.$U\W
<. D(cD8fn,J
// 不带换行 ,n|si#
? "Hello, world!" _S!^=9bJ
5C w(
4.
// 或者
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// 带换行 ~$!,-r
?? 'Hello, world!' wG3L+[,
.> rcnH ^P
LUbhTc
tldT(E6
OCaml h yrPu_
let main () = S)CsH1Q
print_endline "Hello world!";; [o^$WL?c
eAHY/Y!
EPo)7<|>
Pascal 7o4E_ .*
program Hello; yoE-a
begin {R$`YWk
writeln('Hello, world!'); 3j#VKj+Uc
end. =^"Sx??V
Z;+,hR ((
bLT3:q#s
Perl zD_5TGM=
#!/usr/local/bin/perl YznL+TD
print "Hello, world!\n"; g4W$MI
:?f<tNU$
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PHP O:]']' /
<?php R P{pEd
print("Hello, world!"); A;!5c;ftj,
?> ^Ks1[xc* `
Rsx6vF8]5
8~ y!X0Ov!
Pike DVQr7tQf
#!/usr/local/bin/pike @= <{_p
int main() 0GMb?/
{ )St0}?I~
write("Hello, world!\n"); ]H`wE_2tu
return 0; `(W"wC
} Q}#4Qz~n
RXRbW %b
/X8a3Eqp9
PL/I mtUiO
p
Test: procedure options(main); COi15( G2
declare My_String char(20) varying initialize('Hello, world!'); LM<*VhX
put skip list(My_String); V7$ m.P#uM
end Test; Yjg$o:M
3P_.SF
%/eG{oh-
Prolog p5In9s
goal yf{\^^ i(
write("hello,world!"). Uahh|>s
su0K#*P&I
\:'GAByy
Python "t2T*'j{
#!/usr/local/bin/python zkt~[-jm}
print "Hello, world!" hl]d99Lc
Dw=L]i
:0v
1P]J3o
REXX HSud$(w
say "Hello, world!" Eu|/pH=:
fMwF|;
lB}?ey
Ruby )~M@2;@L
#!/usr/bin/ruby
,]wab6sY
print "Hello, world!\n" W *0!Z:?
tFcQ.1
Q_T,=y
Scheme d 6Y9D=O
(display "Hello, world!") %<~Ewno T
(newline) [,bJKz)a
kwi$%
J5b3r1~D"[
sed (需要至少一行输入) /@"mQx~[q
sed -ne '1s/.*/Hello, world!/p' kr$)nf
=u0=)\0@r
"'BDVxp'w
Smalltalk r6j[C"@
Transcript show: 'Hello, world!' U["<f`z4\
3 EAr=E]
d{TcjZ
SNOBOL hl[<o<`Q
OUTPUT = "Hello, world!" l>jrY1u
END YBY;$&9
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BTsvL>Wy
SQL bLTX_
R
create table MESSAGE (TEXT char(15)); !yg &zzP*
insert into MESSAGE (TEXT) values ('Hello, world!'); H!NGY]z*
select TEXT from MESSAGE; n4?;!p<F
drop table MESSAGE; `-nSH)GBM
*3^7'^j<
D}%VZA}].
Tcl q2k}bb +
#!/usr/local/bin/tcl $_%
puts "Hello, world!" 2SC'Z>A
D _\HX9
AsS~TLG9p
TScript 0$XrtnM
? "Hello, world!" L9[m/(:y
Yy!G?>hC
n n[idw
Turing 0o6r3xc;
put "Hello, world!" 5Bcmz'?!
wPyc?:|KD?
b%VBSNZ
UNIX-style shell .&=\
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程序中的/bin/sh可改为您使用的shell xR'd}>`
-Hi_g@i*XW
#!/bin/sh KJn 3&7
echo 'Hello, world!' aSm</@tO&
yokZ>+jb
qvsfU*wo?
GUI Q#*qPgs
,0L< wa
Delphi VQ~eg wJL
program HelloWorld; I%?M9y.u6
uses oW7;t
Dialogs; 5W{|?l{
begin s5b<KQ.
ShowMessage('Hello, World!'); !/F-EJOH6C
end. b9f5
}k1[Fc|
B^1jd!m
Nuva _qit$#wK;
<. { F0"U=
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) L8;`*H
.> Y5>'(A>
Xp^>SSt:4
B]D51R\}VE
Visual Basic >03JQe_#*L
MsgBox "Hello, world!" (_q&QI0{
'或者 d{^K8T3
Print "Hello, world!" ZDrTPnA[
-mZ{.\9
5o|u!#6
Visual FoxPro GwD"j]
? "Hello, world!" 7
dG_E]&
F,5}3$
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X11 'bef3P9`
用一个程序 .|ZnU]~T
v^IMN3^W
xmessage 'Hello, world!'
(+\K
4_eFc$^
用C++和gtkmm 2 =2wy;@f
x(zW<J5X"
#include <iostream> 3'Z+PPd!
#include <gtkmm/main.h> U&tR1v'
#include <gtkmm/button.h> /Hc0~D4|x
#include <gtkmm/window.h> T /7[hj
using namespace std; 7`X9s~B
2LN5}[12]
class HelloWorld : public Gtk::Window \?\q0o<V$
{ k|^nrjStC
public: y/?;s]>b
HelloWorld(); 5.)/gK2$
virtual ~HelloWorld(); )\0c2_w>
protected: Z Q9's
Gtk::Button m_button; )&elr,b/y
virtual void on_button_clicked(); Boa?Ghg
}; pQxi0/d p
j@s,5:;[
HelloWorld::HelloWorld() : m_button("Hello, world!") u`X}AKC
{ X"G3lG
set_border_width(10); y+[wlo&WC
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Yc'7F7.<6
add(m_button); @*LESN>T@t
m_button.show(); +hvVoBCM*
} ?9H.JR2s%
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HelloWorld::~HelloWorld() {} yYTiAvN
">RDa<H]
void HelloWorld::on_button_clicked() <$;fOp
{ ph1veD<ZZ
cout << "Hello, world!" << endl; ? Kn~fs8
} k}Vu!+c z
hMs}r,*
int main (int argc, char *argv[]) l:kF0tj"
{ 0ID
8L
[
Gtk::Main kit(argc, argv); mk~Lkwl
HelloWorld helloworld;
!*xQPanL
Gtk::Main::run(helloworld); Ts:pk
} WS0RvBvb
Wm ?RB0
xH8nn3U
Java :U;ZBs3
import java.awt.*; ,Gd8 <