“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。 t}EMX9SQ
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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》。 4M'>oa
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以下是用不同语言写成的Hello World程序的几个例子: EY}:aur
Ada $6hPTc<C
with Ada.Text_Io; use Ada.Text_Io; =OVDJ0ozZ
procedure Hello is E8Dh;j
begin ny={OhP-
Put_Line ("Hello, world!"); o5<<vvdA
end Hello; *7BfK(9T
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dgL}"*F
汇编语言 tYS4"Nfb+
6%D9;-N)
x86 CPU,DOS,TASM 0c_xPBbB+
MODEL SMALL 7*/{m K)
IDEAL IgT`on3Y
STACK 100H <=uYfi 3,
v*;d
DATASEG V7ph^^sC}
HW DB 'Hello, world!$' 8~sP{V%
1v o)]ff
CODESEG _;<!8e$C
MOV AX, @data EeIDlm0o
MOV DS, AX md!6@)S-p
MOV DX, OFFSET HW }Q7y tE
MOV AH, 09H jYsAL=oh,*
INT 21H sdu?#O+c1
MOV AX, 4C00H S{YzHK
INT 21H xQy,1f3s+
END !e$gp(4
n,la<N]
k[=qx{Osx%
x86 CPU,GNU/Linux,NASM t6+m` Kq
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 0mw1CUx9K
;Enter this into "hello.asm" then type: GK?ual1
;"nasm -f elf hello.asm" @hLkU4S
;"ld hello.o -o hello" 0.aXg "
;"./hello" }d$-:l,w
"S#FI
section .data ;data section declaration 49$P
msg db 'Hello World!',0AH #-hO\
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len equ $-msg ;string length M5xJ_yjG
w~'xZ?
section .text ;code section declaration 9I/b$$?D
global _start ;entry point (start of execution) &&ioGy}1
_start: mov edx,len ;string length 6iC>CY3CG
mov ecx,msg ;string start DM.lQ0xk
mov ebx,1 ;file handle: stdout V35Vi6*p
mov eax,4 ;sys_write )U^=`* 7
int 80h ;kernel system call A~ya{^}
OLw]BJXYaE
mov ebx,0 ;return value =Q#I@SVp2$
mov eax,1 ;sys_exit SnCwoxK
int 80h ;kernel system call *4,Q9K_
yzK;
TS<d?:
x86 CPU,Windows,MASM32 bMH~vR
.386 QV4|f[Ki%
.model flat,stdcall TY8gB!^
option casemap:none WD5J2EePT
;Include 文件定义 %.Y5%TyP
include windows.inc $dfc@Fn^x
include user32.inc ?
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includelib user32.lib |it*w\+M
include kernel32.inc QjLU@?&
includelib kernel32.lib /D"T\KNWr
;数据段 E6GubU
.data ]L~z9)
szCaption db 'A MessageBox!',0 )#AYb
szText db 'Hello,world!',0 -`4]u!A
;代码段 n@`3O'S
.code Gxd/t#;
start: .!~ysy
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK lB27Z}
invoke ExitProcess,NULL F,_cci`p
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ;,-)Z|W
end start l]|&j`'O
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AWK Sp[9vlo8
BEGIN { print "Hello, world!" } oRd{?I&NY
J.rS@Z`~7
~jw:4sG
BASIC -v9 (43
传统版BASIC(例如GWBASIC): wp:$Tq a$
s-*N_Dv
10 PRINT "Hello, world!" 8GxT!
20 END DQhHU1
{Q/@ Y.~<
或在提示符输入: ^I/(9KP#
=x w:@(]{
?"Hello, world!":END 5 n 4/}s
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现代版BASIC(例如Quick BASIC): QqL?? p-S>
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Print "Hello, world!" (a!E3y5,
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以下的语句在Quick BASIC中同样有效: [
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? "Hello,world!" 3>(~5
%|@?)[;
>`30 ib
BCPL e7G>'K
GET "LIBHDR" ~i^,Z&X:
LzXIqj'H7T
LET START () BE .*k!Zl*
$( 21$^k5
WRITES ("Hello, world!*N") JKmd'ZGw
$) z=k*D^X
BvlY\^
0wBr_b!
Befunge R U[
"!dlrow olleH">v 9LQy0Gx
, ziW[qH {
^_@ 5}NO~Xd<
y^p%/p%
P\c0Q;){h"
Brainfuck !oV'
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< .hvn/5s
+++++++++++++++.>.+++.------.--------.>+.>. 0A~f
^
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[0+5 Gx
C AMgvk`<f
#include <stdio.h> Q[O U`
gvZLW!={
int main(void) ,/L_9wV-\
{ ;`bJgSCfo
printf("Hello, world!\n"); J! eVw\6
return 0; q33!X!br
} E{9{%J
\t&6$"n(B6
Q;$/&Y*
C++ ( Gxv?\
#include <iostream> Q^V`%+
}Lwj~{
int main() ZsPBs4<p
{ Ll&5#q
std::cout << "Hello, world!" << std::endl; o:Z*F0qm
return 0; s?K4::@Fv
} {_MU0=7c\
Hp> J,m(*
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C++/CLI >|I3h5\M
int main() { K0T%.G
{ XKU=VOY
System::Console::WriteLine("Hello, world!"); TbU9
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} ow`c B
lB\j>.c
Mw5!9@Fc7
C# (C Sharp) +Vf|YLbhJ
class HelloWorldApp :~)Q] G1Nj
{ s*#|EdD6@
public static void Main() 5BCaE)J
{ Q}.y"|^
System.Console.WriteLine("Hello, world!"); {}^ELw
} 6k3l/ ~R
} 8"*$e
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17Gdu[E
a@r K%Iff
COBOL ?HcA&
IDENTIFICATION DIVISION. FW.dHvNX
PROGRAM-ID. HELLO-WORLD. 1k%ko?
qiF~I0_0
ENVIRONMENT DIVISION. m[7:p{
2nieI*[
DATA DIVISION. IFTW,9hh
tx1jBh:e=
PROCEDURE DIVISION. f}'gg
DISPLAY "Hello, world!". f8^58]wx0
STOP RUN. qRGb3l
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6uXYZ.A
Common Lisp 5)oIPHXw
(format t "Hello world!~%") hCvn(f
v(7A=/W_
eo_T.q
DOS批处理 Q%xY/xH]
@echo off +e:ZN
tr9
echo "Hello, world!" CBT>"sYE1
,<,:8B
NW9n
Eiffel sd re#@n}
class HELLO_WORLD yoe}$f4
{04"LAE
creation X<OSN&d
make Kr`]_m
feature `<" m%>
make is )u ?' ;
local 7Du1RuxP
io:BASIC_IO ~:Uwg+]j
do JWP*>\P
!!io [&S}dQ"
io.put_string("%N Hello, world!") W1aa:hEf
end -- make >k7q
g$
end -- class HELLO_WORLD 8euZTfK9e
`Kl`VP=c
M.}7pJ7f
Erlang uZKP"Oy
-module(hello). ]LPQYL
-export([hello_world/0]). >"3>s%
s=I'e/"7
hello_world() -> io:fwrite("Hello, World!\n"). 2i#Sn' 1
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eEc4bVQa
Forth :B*}^g
." Hello, world!" CR w*j$uW6{
?z-}>$I;
woH)0v
Fortran
Zc&&[g
WRITE(*,10) jMBiaX`F
10 FORMAT('Hello, World!') q(^Q3
STOP 0Rxe~n1o
END em@EDMvI
XdEPbD-
Ft{[ae?4
HTML 7iC *Pr
<HTML> ?0*8RK
<HEAD> {0\,0*^p
<TITLE> Hello World! </TITLE> Z5G!ct:W
</HEAD> m8]?hJY3l
<BODY> 79J-)e9
<p>Hello World!</p> JeH;v0
</BODY> ]bCq=6ZKR
</HTML> L7Dh(y=;7
8Q`WB0E<|
XdgUqQb}
HQ9+ Tq<2`*Qs
H Q<tu) Qo
6Q|k7*,B
uw\1b.r'B
INTERCAL )+I.|5g
PLEASE DO ,1 <- #13 z(RL<N%
DO ,1 SUB #1 <- #238 1}~(Yj@f%
DO ,1 SUB #2 <- #112 gv5*!eI
DO ,1 SUB #3 <- #112
}-~l!
DO ,1 SUB #4 <- #0 7gRgOzWfV
DO ,1 SUB #5 <- #64 uslQ*7S[^
DO ,1 SUB #6 <- #238 4tY ss
DO ,1 SUB #7 <- #26 E!S 78z:
DO ,1 SUB #8 <- #248 sVex
(X
DO ,1 SUB #9 <- #168 S6fb f>[
DO ,1 SUB #10 <- #24 7g_]mG[6
DO ,1 SUB #11 <- #16 ?6'rBH/w
DO ,1 SUB #12 <- #158 [`
sL?&a
DO ,1 SUB #13 <- #52 iYC9eEF
PLEASE READ OUT ,1 `-LGU7~+
PLEASE GIVE UP Z1"v}g
T
Q,?>6n
->N8#XH2=
Java ;J7F J3n
public class Hello GgKEP,O
{ 23gPbtq/
public static void main(String[] args) L@fY$Rw
{ u{L!n$D7
System.out.println("Hello, world!"); R
LD`O9#j
} 5eWwgA
} ({o'd=nO
o=1X^,
ZRYEqSm
JSP 7B?c{
<% {5
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out.print("Hello, world!"); K<>sOWZ'S
%> Po%(~ )S>
%Rsp;1Z
g&{9VK6.
MIXAL LW(6$hpPp
TERM EQU 19 the MIX console device number c_>f0i
ORIG 1000 start address A%^ILyU6c
START OUT MSG(TERM) output data at address MSG Si~vDQ7"
HLT halt execution 5scEc,JCi
MSG ALF "MIXAL" t]e;;q=L.
ALF " HELL" Qa.uMq
ALF "O WOR" %'T #pz
ALF "LD " ZzX~&95G
END START end of the program 'PP#^aI,
\Acqr@D
XO'l Nb.
Nuva Ot`VR&}
<..直接输出..> FLY
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Hello, world! J4\ qEO
.c$316
<..或者..> QNl'ZB\
_l1NKk
<. uyY|v$FM
// 不带换行 KSrx[q
? "Hello, world!" n\Lb.}]1~
M4W5f#C5Ee
// 或者 p
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0c#/hFn
// 带换行 ,tg0L$qC
?? 'Hello, world!' OiP!vn}k
.> 1u9LdkhnY
4f;HQ-Iv
-uy`!A
OCaml RG4 sQ0
let main () = l(#)WWr+
print_endline "Hello world!";; (V HL{rj
to$h2#i_
~appY Av
Pascal lMbAs.!
program Hello; tmtT(
begin jNC4_q&
writeln('Hello, world!'); &EnuE0BD
end. )[|3ZP`
BGu?<bET
N~xLu8,
Perl Vkc#7W(
#!/usr/local/bin/perl c=`wg$2:5
print "Hello, world!\n"; 5O6hxcMjT
#&7}-"Nd
`9b7>Nn<
PHP 'uxX5k/D@t
<?php +o51x'Ld*
print("Hello, world!"); yYH 0v7vx+
?> 6efnxxY}sa
,9o"43D:a|
go<W( ,O
Pike ez6EjUk
#!/usr/local/bin/pike !dC<4qZ\C
int main() xcf%KXJf6
{ |UxG $M(
write("Hello, world!\n"); mFZ?hOyP.
return 0; 5EebPXBzB
} UQI]>#_/v
)6J9J+%bi
ZKckAz\#
PL/I y7i*s^ys{
Test: procedure options(main); !!? Mw
declare My_String char(20) varying initialize('Hello, world!'); 1cD! :[
put skip list(My_String); vt9)pMs
end Test; \0f{S40
@ >U-t{W
qDfd. gL
Prolog CLJ;<
goal 8!Ww J
Oe
write("hello,world!"). HI11Jl}{
D'Y-6W3
AQiwugs
Python ]3l 9:|
#!/usr/local/bin/python N/K.%<h
print "Hello, world!" c>)Yt^q&K
u!W0P6
07^iP>?
REXX X'qU*Eo
say "Hello, world!" _ "VkGG
n@,G8=J?
7w6cwHrL@
Ruby PU1Qsb5
#!/usr/bin/ruby P IwFF}<(
print "Hello, world!\n" Tap.5jHL
O2%?
"*srx]
Scheme LB a[:j2
(display "Hello, world!") c:o]d )S
(newline) hj.a&%
/Y7<5!cS
@dPTk"P
sed (需要至少一行输入) lUvpszH=
sed -ne '1s/.*/Hello, world!/p' z-.+x3&o @
m~-K[+ya`D
&bfA.&
`
Smalltalk wlqpn(XR
Transcript show: 'Hello, world!' jGpN,/VQa
SX#
e:_
Lja>8m
SNOBOL ne_TIwf w-
OUTPUT = "Hello, world!" n4R(.N00
END /! "|_W|n
~ijVmWNk
l^pA2yh|
SQL m0;CH/D0
create table MESSAGE (TEXT char(15)); ;E3>ay6m8
insert into MESSAGE (TEXT) values ('Hello, world!'); t7j);W%e6
select TEXT from MESSAGE; U$WxHYo
drop table MESSAGE; M$>1L
uYs5f.! `
YH\OFg@7
Tcl )W;o<:x3
#!/usr/local/bin/tcl hM6PP7XH
puts "Hello, world!" &)AVzN+*h
(2^gVz=j
yl7&5)b#9
TScript mR?5G:W~R
? "Hello, world!" I uMQ9&
uF9C-H@:
%}Ss,XJ
Turing [d1mLJAR
put "Hello, world!" j/_s"}m{
hog=ut
-y8`yHb_
UNIX-style shell )GM41t1i
程序中的/bin/sh可改为您使用的shell 4,CXJ2
FtfKe"qw
#!/bin/sh X[&Wkr8x '
echo 'Hello, world!' Z7hgA-t
v*SEb~[
KLitg6&P
GUI j}JrE,|
x7jC)M<k0
Delphi ZjQ
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program HelloWorld; =/y]d<g
uses h?BFvbAt
Dialogs; qB0E_y)a
begin Y&d00
ShowMessage('Hello, World!'); aTqd@},?
end. {=!b/l;@
S+atn]eU@
W&&;:Fr
Nuva Nn~~!q
<. MGR!Z@1y
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) )4gJd?
8R
.> TarIPp
:(!`/#6H
Sa?ksD2IaB
Visual Basic X(]WVCu
MsgBox "Hello, world!"
A: 5x|
'或者 7VqM$I
Print "Hello, world!" wsIW
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b[t> te
Visual FoxPro {*0<T|<n
? "Hello, world!" 8S mCpg
~sl{ |E
OjJXysslXO
X11 hyCh9YOu)
用一个程序 \>:CvTzF
'IZI:V"
xmessage 'Hello, world!' rz wF~-m +
[SHXJ4P*
用C++和gtkmm 2 -Zf@VW,NI
Xjo5v*P u
#include <iostream> <>s`\ %
#include <gtkmm/main.h> cZB7fmq%
#include <gtkmm/button.h> Ox&P}P0f
#include <gtkmm/window.h> (l-tvk4Ln
using namespace std; \6E|pbJ}x
iop2L51eJ
class HelloWorld : public Gtk::Window F(k.,0Nc
{ !UG
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public: Xu<k3oD7
HelloWorld(); /<@SFF.
virtual ~HelloWorld(); |Y$uqRdV
protected: sYe?M,
Gtk::Button m_button; 0fF(Z0R,
virtual void on_button_clicked(); r@v,T8
}; '(f&P=[b
>XY`*J^
HelloWorld::HelloWorld() : m_button("Hello, world!") SB1upTn
{ U1DXeh~V
set_border_width(10); //T>G_1
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); TH; R
add(m_button); ??PC
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m_button.show(); 9o;^[Ql-
} "x=f=;
y4t7`-,~
HelloWorld::~HelloWorld() {} S4^vpY
DeN
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void HelloWorld::on_button_clicked() aGJC1x
{ Bg&i63XL$$
cout << "Hello, world!" << endl; mQCeo}7N5
} &<wuJ%'>)Z
xIxn"^'
int main (int argc, char *argv[]) Xf02"PXC
{ ^* J2'X38I
Gtk::Main kit(argc, argv); jT8#C=a7
HelloWorld helloworld; lJu;O/
Gtk::Main::run(helloworld); J)`-+}7$v
} $nb[G$
?&|5=>u2}$
kSR\RuY*
Java RA KFU
import java.awt.*; 7![,Q~Fy
import java.awt.event.*; Y' %^NP}o
tE@;X=
public class HelloFrame extends Frame :uWw8`
{ e?7&M
HelloFrame(String title) aa>xIW,u
{ r<K(jG[:{f
super(title); A6:es_
} LXbP 2
public void paint(Graphics g) r30 <