“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。 hFyN|Dqhds
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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》。 BqKD+
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以下是用不同语言写成的Hello World程序的几个例子: "n:L<F,g
Ada ]oXd|[G
with Ada.Text_Io; use Ada.Text_Io; "f3, w
procedure Hello is 31<hn+pE&
begin u,4,s[
Put_Line ("Hello, world!"); ,TeDJ\k
end Hello; _nOio ?
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汇编语言 OCY7Bls4
2gb49y~
x86 CPU,DOS,TASM ZLxe$.V_
MODEL SMALL 5H""_uw
IDEAL C7eaioW$
STACK 100H IeZ}`$[H
j#<#o:If
DATASEG DZ(e^vq
HW DB 'Hello, world!$' X}h{xl
[&3G `8hY
CODESEG f+1)Ju~
MOV AX, @data DM~Q+C=Yr
MOV DS, AX /,$6`V
MOV DX, OFFSET HW ,K8PumM_
MOV AH, 09H Bn}@wO
INT 21H q yQPR
MOV AX, 4C00H s[8<@I*u
INT 21H /!d,f4n
END Q^ bG1p//.
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fb&K.6"
x86 CPU,GNU/Linux,NASM ~|R"GloUw
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). OKxPf]~4E
;Enter this into "hello.asm" then type: ?Ju=L|
;"nasm -f elf hello.asm" C Vyq/X
;"ld hello.o -o hello" dD@T}^j *|
;"./hello" sW@4r/F>:D
UOT~L4G
section .data ;data section declaration 6TlkPM$~2
msg db 'Hello World!',0AH e8--qV#<
len equ $-msg ;string length <b{Le{QJ*
}m\
section .text ;code section declaration a:H}c9$%
global _start ;entry point (start of execution) JY_+p9KfyQ
_start: mov edx,len ;string length kc1 *@<L6
mov ecx,msg ;string start ].7)^
mov ebx,1 ;file handle: stdout >eW HPO
mov eax,4 ;sys_write SI8mr`gJ
int 80h ;kernel system call hdfNXZ{A"
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mov ebx,0 ;return value yrE|cH'f0
mov eax,1 ;sys_exit )I$_wB!UV
int 80h ;kernel system call JG0TbM1(Bt
CYes'lr
^A;v|U
x86 CPU,Windows,MASM32 fW <qp
.386 7?Xfge%\
.model flat,stdcall e9o(hL
option casemap:none Cq}LKiu
;Include 文件定义 "<txg%j\J
include windows.inc _ N.ZpKVu
include user32.inc hXmW,+1
includelib user32.lib rnEWTk7&
include kernel32.inc :M'3U g$t
includelib kernel32.lib y~]>J^
;数据段 pc:~_6S
.data Q~ te`
szCaption db 'A MessageBox!',0 h8$lDFo
szText db 'Hello,world!',0 \b{=&B[Q$'
;代码段 rP^2MH"
.code zG+oZ
start: kYmkKl_
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK zl4Iq+5~6Q
invoke ExitProcess,NULL ]geO%m
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =cX&H
end start oju4.1
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7:9WiN5b
AWK "qMd%RP
BEGIN { print "Hello, world!" } Y GvtG U-
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BASIC Y{f;qbEQH'
传统版BASIC(例如GWBASIC): $
[0
- YJ7ne]
10 PRINT "Hello, world!" ?.,..p
20 END "N D1$l
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或在提示符输入: _~-VH&g0R
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?"Hello, world!":END 5ju\!Re3X
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现代版BASIC(例如Quick BASIC): |J?KHI
'\[GquK;P
Print "Hello, world!" `G@]\)-!
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以下的语句在Quick BASIC中同样有效: o~*% g.
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? "Hello,world!" rB<
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j1_CA5V
BCPL OU/PB
GET "LIBHDR" &3:-(:<U
'>@evrG
LET START () BE }BzV<8F
$( TMT65X!
WRITES ("Hello, world!*N") /!P,o}l7
$) >E^sZmY[f-
ri.;&
Oz-X}eM
Befunge jLM1~`&
"!dlrow olleH">v Dc}-wnga
, a>ZV'~zTf
^_@ !c[?$#W4
nulVQOj|
~]O~a}]g(
Brainfuck Cevl#c5p>
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< g-bHf]'
+++++++++++++++.>.+++.------.--------.>+.>. F$^RM3
es6!p 7p?
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C x32hO;
#include <stdio.h> p?>(y
OT+=H)/
int main(void) a{GPAzO+
{ 9!NL<}]{
printf("Hello, world!\n"); J4;w9[a$
return 0; SRRqIQz
} AD_")_B|i
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C++ -B* = V
#include <iostream> 8Mf6*G#Y
8LB,8*L^
int main() J NPEyC
{ onI%Jl sq
std::cout << "Hello, world!" << std::endl; iV58 m
return 0; |a*VoMZ
} bqWo*>l
LPc)-t|p"
@!"w.@Y
C++/CLI %iPWg
int main() V|13%aE_v
{ iP]KV.e'/C
System::Console::WriteLine("Hello, world!"); A,Wwt
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} ;6KcX \g-
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NTbmI$(
C# (C Sharp) z"Miy
class HelloWorldApp ~:'tp28?
{ 1hp`.!3]H
public static void Main() ?#YheML?
{ :PE{2*
System.Console.WriteLine("Hello, world!"); Tvqq# ;I
} WYSqnmi
} opU=49b
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%IL]
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COBOL )CJXkzOX
IDENTIFICATION DIVISION. -d1 YG[1|
PROGRAM-ID. HELLO-WORLD. zl^ %x1G
dWqKt0uh!
ENVIRONMENT DIVISION. `<2k.aW4e8
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DATA DIVISION. =(2y$,6g?
)S@e&a|
PROCEDURE DIVISION. #s>AiD
DISPLAY "Hello, world!". ,h,OUo]LIY
STOP RUN. /Jj7+?
c!*yxzs\
}Z#KPI8\Q
Common Lisp T$rhz)_q
(format t "Hello world!~%") C~-x637/
]9qY(m
js;p7wi
DOS批处理 o@:${>jw
@echo off nWb*u
echo "Hello, world!" @6h,#8#
nsn
gR1vUad7
Eiffel ,.DTJ7H+
class HELLO_WORLD E:vgG|??
)Q= EmZbJz
creation [$M=+YRHMW
make K)b@,/ 5
feature K</EVt,U~
make is #NQpr
local ]8@s+N
io:BASIC_IO qW+'#Jh@TV
do %hDx UZ#0
!!io niC ;WK
io.put_string("%N Hello, world!") C2}n &{T
end -- make ]Q0m]OaT
end -- class HELLO_WORLD ~&HP}Q$#f
^/]w}C#:d
M^IEu}
Erlang ?#s9@R1
-module(hello). " GRR,7A
-export([hello_world/0]). &pHSX
qlSI| @CO
hello_world() -> io:fwrite("Hello, World!\n"). =jv3O.z q
# dA9v7
!]f80z
Forth 7[=\bL
." Hello, world!" CR =z>d GIT1
+FomAs1*f
jkAWRpOc)
Fortran ]#k=VKdV
WRITE(*,10) 4.Kl/b;
10 FORMAT('Hello, World!') n8 UG{.
=
STOP Lb]!TOl
END )7]la/0
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K@%o$S?>z_
HTML L a>fvm
<HTML> CWBlDz
<HEAD> .A6D&-&z
<TITLE> Hello World! </TITLE> >0F)^W?
</HEAD> M.FY4~
<BODY> A1Ru&fd!
<p>Hello World!</p> R?{f:,3R
</BODY> r=6N ZoZ
</HTML> elJ?g
&"
H!'Ek[s+
i+q tL3
HQ9+ :;
z]:d
H 4Jn+Ot.,d
[>$?/DM
35Ro85j
INTERCAL e5AZU7%.
PLEASE DO ,1 <- #13 \LG0
DO ,1 SUB #1 <- #238 IA%|OVAfF
DO ,1 SUB #2 <- #112 :o3>
DO ,1 SUB #3 <- #112 p=!12t
DO ,1 SUB #4 <- #0 []lMv
ZW
DO ,1 SUB #5 <- #64 L"KKW
c
DO ,1 SUB #6 <- #238 knfEbH
DO ,1 SUB #7 <- #26 MJ"@
DO ,1 SUB #8 <- #248 +D+v j|fn
DO ,1 SUB #9 <- #168 VLPPEV-u
DO ,1 SUB #10 <- #24 2Tp@;[!3
DO ,1 SUB #11 <- #16 zMke}2
DO ,1 SUB #12 <- #158 FEH+ PKSc
DO ,1 SUB #13 <- #52 |)VNf.aJZ
PLEASE READ OUT ,1 B>}B{qi|
PLEASE GIVE UP z:^(#G{
8n/8uRIR
9dVHh?E
Java YsO3( HS
public class Hello q nb#~=x^
{ .oS[ DTn5S
public static void main(String[] args) &w!(.uDO
{ 8]K+,0m6
System.out.println("Hello, world!"); )%q!XM
} F MX^k
} ,ZI#p6
|A.nP9 hW
dVMduo
JSP S
awf]/
<% :F8h}\a*
out.print("Hello, world!"); \G0YLV~>P
%> dQn,0
=AcK9?%5
}}qY,@eeX
MIXAL |2E:]wT}qg
TERM EQU 19 the MIX console device number ToK=`0#LNK
ORIG 1000 start address ~|G`f\Ln"
START OUT MSG(TERM) output data at address MSG 4|&_i)S-Y
HLT halt execution ::p%R@?
MSG ALF "MIXAL" QE|x[?7e,!
ALF " HELL" (gRTSd T?
ALF "O WOR" mEmgr(W
ALF "LD " Cxd^i
END START end of the program h,\5C/
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KV 8Ok
Nuva w5 #;Lm
<..直接输出..> NR,R.N^[
Hello, world! :d6]rOpX
j.!5&^;u4
<..或者..> SoWMP2/
n-9a0_{k
<. uZTbJ3$$
// 不带换行 2KlVj]!7
? "Hello, world!" &^`[$LtYd
shD4";8*@
// 或者 \sAkKPI
d]USk&8
// 带换行 "S+AkLe(
?? 'Hello, world!' i#NtiZ.t=
.> bE,#,
:N!s@6
=Fc}T%
OCaml q[Tl#*P?y
let main () = cQ;@z2\
print_endline "Hello world!";; #qu;{I#W3
]SAGh|+xl
;VzdlCZ@
Pascal
wh#IQ.E-
program Hello; I<Cm$8O?
begin T/0cPn0>
writeln('Hello, world!'); U;A,W$<9
end. O=eU38n:5u
Kum" }ux
^M1jv(
Perl Uw]o9 e0S
#!/usr/local/bin/perl }vU^gPH
print "Hello, world!\n"; Py?e+[cN
`,O"^zR)z
~ z^49Ys:
PHP ;?q-]J?
<?php j115:f
print("Hello, world!"); ]Q,&7D
Ah
?> w`EC6ZN
GTi=VSGqF
>;]S+^dXY
Pike Y[|9
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#!/usr/local/bin/pike g*Pn_Yo[.
int main() 2%v6h
{ p' 6h9/
write("Hello, world!\n"); 6B]i}nFH{+
return 0; f,kV
} >7)QdaB
rmi&{o:
aeVd.`lxM
PL/I '9'f\
Test: procedure options(main); G5|'uKz2"
declare My_String char(20) varying initialize('Hello, world!'); 62kA(F0e,
put skip list(My_String); XTA:Y7"O
end Test; #]QS
Q8A+\LR~)
#F6<N]i
Prolog ecx_&J@D
goal qfdL *D
write("hello,world!"). qo}yEl1
)Y&B63]B
RD0*]4>]
Python KMG}VG
#!/usr/local/bin/python 0}YadNb7
print "Hello, world!" +U<.MVOo.
belBdxa{"
GDs/U1[*
REXX r"7PSJ
say "Hello, world!" tJ*/5k
&
QE pCU)
Xgl
%2'
Ruby mhM;`dl
#!/usr/bin/ruby Y
O|hwhe_
print "Hello, world!\n" M?Fv'YE
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MR: H3
Scheme =jA.INin4
(display "Hello, world!") >0u*E *Y
(newline) Q"Exmn3p
RameaFX8
cd~ QGP_C
sed (需要至少一行输入) &xvNR=K[`
sed -ne '1s/.*/Hello, world!/p' BpGyjoJ2
>l=jJTJ;q
rLY I\
Smalltalk I.Xbowl
Transcript show: 'Hello, world!' Hq~SRc~
?r*}1WsH
'R2*3<
SNOBOL G^z>2P
OUTPUT = "Hello, world!" ,Y#f0
END !]9qQ7+R%
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Z%b1B<u$
SQL ]ncK M?'O
create table MESSAGE (TEXT char(15)); U6o]7j&6
insert into MESSAGE (TEXT) values ('Hello, world!'); 1vAJ(O{-
select TEXT from MESSAGE; Z2-tDp(I
drop table MESSAGE; &_s^C?x
6(7dr?^eGT
;mr*$Iu 7|
Tcl |Om9(xT
#!/usr/local/bin/tcl D><^ 7nr%
puts "Hello, world!" 6-\'
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Z#l6BXK
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JJp
TScript (LMT '
? "Hello, world!" 4N1)+W8k*
;5
:T>OJ"p
Turing i7rk%q
put "Hello, world!" n<@C'\j@
#Uep|A
1(_[awBx
UNIX-style shell E$A=*-u
程序中的/bin/sh可改为您使用的shell GuaF B[4
({$rb-
#!/bin/sh &os:h]
C
echo 'Hello, world!' 5|`./+Ghk
.]a`-Ofn
m?1r@!/y
GUI +bR|;b(v
1. <g C
Delphi F7/%,vf
program HelloWorld; uJ fXe
uses ]l3Y=Cl
Dialogs; T-iQ!D~
begin meXwmO
ShowMessage('Hello, World!'); sPl3JP&s
end. {qU;>;(
)4hA Fy6l
cBU3Q<^
Nuva hBifn\dFr
<. ah(k!0PV
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) dDAl n+
.> )c 79&S
yMmUOIxk\
DMSC(Sz
Visual Basic ;#8xRLW
MsgBox "Hello, world!" .$Yp~
'或者 E8t{[N6d
Print "Hello, world!" <xrya_R?
s;[=B
X`-o0HG
Visual FoxPro L)S
V?FBx
? "Hello, world!" NO/5pz}1
l<(jm{q?u
5zyd;y)|'
X11 S!^I<#d K
用一个程序 x^cJ~e2
Fiw^twz5
xmessage 'Hello, world!' 3Tc90p l*t
Z Y5Pf
1
用C++和gtkmm 2 !t{
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#include <iostream> pX$X8z%
#include <gtkmm/main.h> F}@]Lq+
#include <gtkmm/button.h> )jjaY1E
#include <gtkmm/window.h> H;DjM;be
using namespace std; o{l]n*
u@`y/,PX
class HelloWorld : public Gtk::Window zyt >(A1
{ ?iamo.0zN
public: 7<K=G2_:
HelloWorld(); 9%0^fhrJ
virtual ~HelloWorld(); KFaYn
protected: |@f\[v9`
Gtk::Button m_button; ICc:k%wE7
virtual void on_button_clicked(); rZ.z!10
}; o,?h}@
*D`$oK,U
HelloWorld::HelloWorld() : m_button("Hello, world!") 6TXTJ]er
{ 7&w[h4Lw
set_border_width(10); n;:C{5
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); wS
>S\,LV
add(m_button); [ L
' >
m_button.show(); 6JRFYgI
} ivt ~S
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HelloWorld::~HelloWorld() {} 0xaK"\Q
[l7n"gJ~
void HelloWorld::on_button_clicked() +Z=y/wY
{ f|3LeOyz
cout << "Hello, world!" << endl; ~0}d=d5g
} ^7t1'A8e<
: &~LPmJ
int main (int argc, char *argv[]) $U)nrni
{ Pmd5P:n*,
Gtk::Main kit(argc, argv); M7-2;MZ
HelloWorld helloworld; _kBx2>qQ
Gtk::Main::run(helloworld); KYl!Iw67d
} [8Z
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Ht]O:io`
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Java @Q&k6.{4Z
import java.awt.*; H7meI9L
import java.awt.event.*; U8,pe;/ln`
ep*8*GmP
public class HelloFrame extends Frame mHH>qW{`
{ .*J /F$
HelloFrame(String title) 1xO-tIp/
{ 7?);wh 7`
super(title); T`]P5Bk8r
} k[f_7lJ2
public void paint(Graphics g) dx$+,R~y
{ O]j<