“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。 x])j]k
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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》。 U~sC%Ri-@U
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以下是用不同语言写成的Hello World程序的几个例子: $#/8l58
Ada Fv,c8f
with Ada.Text_Io; use Ada.Text_Io; E$ 8-8[
procedure Hello is `}P9[HP
begin 27[e0 j
Put_Line ("Hello, world!"); (&)uWjq
`
end Hello; jxW/"Q
?$;&DoE
8hy1yt6t4~
汇编语言 HQ=pf >
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x86 CPU,DOS,TASM $l.8
MODEL SMALL ;W+1 H !
IDEAL $A74V[1^
STACK 100H kz1Z K
qooTRqc#,
DATASEG 7o+VhW<|5
HW DB 'Hello, world!$' M7Z&t'=
&q4~WRnzJk
CODESEG H/W&a2R^P
MOV AX, @data .AX%6+o
MOV DS, AX 8KP
MOV DX, OFFSET HW uCW}q.@4
MOV AH, 09H D5@}L$u
INT 21H c uAp,!
MOV AX, 4C00H K4Nz I9@
INT 21H J+0
?e9
END M{u 7Ef
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x86 CPU,GNU/Linux,NASM 2.j0pg .
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ;CL^2{
;Enter this into "hello.asm" then type: 8zeD%Uv
;"nasm -f elf hello.asm" V#1v5mWVx
;"ld hello.o -o hello" LM"b%
;"./hello" j _E(h.
|C+
5
section .data ;data section declaration Z^mIGy}
msg db 'Hello World!',0AH %^I 7=
len equ $-msg ;string length ,-$%>Uv
23;\l
section .text ;code section declaration eon(C|S7eK
global _start ;entry point (start of execution) Z^A( Q>{e
_start: mov edx,len ;string length }EfRYE$E
mov ecx,msg ;string start ou|3%&*"
mov ebx,1 ;file handle: stdout r!>=G%
mov eax,4 ;sys_write n#GHa>p.-
int 80h ;kernel system call _fj@40i M
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mov ebx,0 ;return value
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mov eax,1 ;sys_exit D 5Z7?Y
int 80h ;kernel system call rY6bc\?`x
{[H#lX 4
:^QV,d<C
x86 CPU,Windows,MASM32 rA_r$X
.386 _cfAJ)8=
.model flat,stdcall lg (>n&
option casemap:none kmfz.:j{
;Include 文件定义 =>TXo@rVN
include windows.inc sh<JB`^$(?
include user32.inc 8p~[8}
includelib user32.lib tnmz5Q
include kernel32.inc ac4dIW{$3
includelib kernel32.lib NlG!_D"(y
;数据段 aI\>=*HF
.data ok&v+A
szCaption db 'A MessageBox!',0 .$x822
szText db 'Hello,world!',0 Si#XF[/
;代码段 _{i-.;K
.code 99q$>nx,w
start: ,n5 [Y)
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Zr\G=0`
invoke ExitProcess,NULL 1-4*YrA
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 9Cb>J
end start Me,AE^pgL'
/8(t:
IP1{gMG
AWK Ce3
BEGIN { print "Hello, world!" } uUG &At
V SH64
FRE${~Xd
BASIC ORV'dr
传统版BASIC(例如GWBASIC): 7XIG ne%v
}W]k1Bsx
10 PRINT "Hello, world!" f7]C1!]
20 END f%d
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#Bn7Cc
或在提示符输入: %}Ob~m>P
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?"Hello, world!":END na4^RPtN\e
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现代版BASIC(例如Quick BASIC): 5th\_n}N2/
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Print "Hello, world!" V:4($
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以下的语句在Quick BASIC中同样有效: {[B` q
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? "Hello,world!" b{JxTT}03
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h@?BA<'S
BCPL QW%BKF!
GET "LIBHDR" [@t 6,g
3WdANR
LET START () BE B7qiCX}pD
$( lT]dj9l
WRITES ("Hello, world!*N") Ed~2Qr\65
$) x~O_v
n1)m(,{
,7Lu7Q
Befunge QVrMrm+vRv
"!dlrow olleH">v *(@[E
, rU1{a" {
^_@ $y*["~TJ
5/{gY{
=l9H]`T/
Brainfuck =}AwA5G
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< A|U_$!cLZ
+++++++++++++++.>.+++.------.--------.>+.>. D3%`vqu&
vo DTU]pf
.!J,9PE
C E
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*;
#include <stdio.h> 76*5/J-
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int main(void) u
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{ w,FOq?j^k
printf("Hello, world!\n"); f9 b=Zm'
return 0; m)9qO7P
} 68LB745
\TBY)_[ {
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C++ ^Ru/7pw5
#include <iostream> FLekyJmw~
ztS'Dp}q<
int main() O8:,XTAN
{ LA^H213N|
std::cout << "Hello, world!" << std::endl; xcYYo'U
return 0; ^m:?6y_uw
} ~m56t5+uw
sf5koe
az]S&\i7T
C++/CLI =' cr@[~i
int main() 4RqOg1
{ WNPdy m
System::Console::WriteLine("Hello, world!"); "8"7AoE
} ^*]0quu=z
:bgi*pR{
WV"{oED
C# (C Sharp) yVM
1W"Q
class HelloWorldApp 29#;;n}p
{ ewtoAru
public static void Main() @GGPw9a
{ ,Mwj`fgh
System.Console.WriteLine("Hello, world!"); $u9y
H Z
} <3>Ou(F
} xCV3HnZ
U:`g12
@`ttyI^1f
COBOL *5#Y[c
IDENTIFICATION DIVISION. ZIx,?E+eJ
PROGRAM-ID. HELLO-WORLD. l~M86 h
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ENVIRONMENT DIVISION. /*lSpsBn
&6E^<v?]
DATA DIVISION. Gu:aSb
s3G3_&
PROCEDURE DIVISION. |!)3[<.
DISPLAY "Hello, world!". g9;}?h
STOP RUN. BS#@ehdig
f,Sybf/uHh
KPUc+`cN%
Common Lisp &k?Mt#J
(format t "Hello world!~%") 08S|$_
zrt8ze=Su
@&]j[if(s
DOS批处理 C/+8lA6NV
@echo off ?K/z`E!xhN
echo "Hello, world!"
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fO.gfHI
#{l+I(M
Eiffel ?'h<yxu]u0
class HELLO_WORLD qf9.S)H1Z
#]|9aVrr
creation ge[+/$(1
make t\]CdH`+
feature -C5Qh&~W
make is SD6xi\8
local CV4r31w
io:BASIC_IO uM0z%z5b
do VWG#v#o
!!io %9=^#e+pE
io.put_string("%N Hello, world!") Au"[2cG
end -- make x1$tS#lS
end -- class HELLO_WORLD mD)_quz.sk
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Y2w 9]:J
Erlang g Bq, So
-module(hello). r$6z{Na\[
-export([hello_world/0]).
#oi4!%*M
ue$\i =jw
hello_world() -> io:fwrite("Hello, World!\n"). .c+RFX@0
LeY\{w
H.Z:at5n
Forth 56AaviE C
." Hello, world!" CR ab'
f:
V2'(}k
#T n~hnW
Fortran ^c^9kK'
WRITE(*,10) BRV /7ao="
10 FORMAT('Hello, World!') -rlxxLT+
STOP z$`=7 afp
END s&M6DFlA
Q/=L(_1l
pP)0 l
HTML Tfgx>2
<HTML> ~y^#?;
<HEAD> U,+kV?Z
<TITLE> Hello World! </TITLE> EZc!QrY
</HEAD> p/'C
v
<BODY> w=3@IW
<p>Hello World!</p> \p.Byso,
</BODY> '\dFhYs{*
</HTML> NJ7N*
^gh/$my;
2[Q*?N
HQ9+ wI}5[m
H =[?2'riI
7##nY3",^
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INTERCAL oWo"`"P
PLEASE DO ,1 <- #13 xue-5 '
DO ,1 SUB #1 <- #238 lb&tAl"D
DO ,1 SUB #2 <- #112 ?U2ed)zzw
DO ,1 SUB #3 <- #112 }jfU qqFd
DO ,1 SUB #4 <- #0 MlsF?"H p
DO ,1 SUB #5 <- #64 9 YU7R)
DO ,1 SUB #6 <- #238 7
4aap2^
DO ,1 SUB #7 <- #26 $[[6N0}*:
DO ,1 SUB #8 <- #248 or~o'
DO ,1 SUB #9 <- #168 B.K"1o
DO ,1 SUB #10 <- #24 qw0tw2|
DO ,1 SUB #11 <- #16 z(>{"t<C
DO ,1 SUB #12 <- #158 EUe2<G
DO ,1 SUB #13 <- #52 D_9&=aa'
PLEASE READ OUT ,1 pR&cdORsP
PLEASE GIVE UP 3.Qf^p
~7b'4\
}`Q'!_`
Java d^Ra1@0"q2
public class Hello #d*mG =
{ KcfW+>W3
public static void main(String[] args) )~O{jd
{ wQp,RpM
System.out.println("Hello, world!"); JXGIVH?Rpu
} av gGz8
} Rmn| "ZK
X!CLOHVAa
>;HbDp
JSP bUAjt>+
<% LlRvm/
out.print("Hello, world!"); jY:(Tv3~
%> ?qw&H /R
u|WX?@\
&EmxSYL>
MIXAL ]NuY{T&:
TERM EQU 19 the MIX console device number FI*.2rdSR
ORIG 1000 start address \"_;rJ{!aE
START OUT MSG(TERM) output data at address MSG 5cxA,T
HLT halt execution iyu%o9_0
MSG ALF "MIXAL" 7-w
+/fv
ALF " HELL" W&z.O
ALF "O WOR" >?b/_O
ALF "LD " c"H4/,F
END START end of the program GfJm&'U&
0X0HDQ
WaN0$66[:
Nuva L,waQk / @
<..直接输出..> ^gH.5L0]gH
Hello, world! 7u!R 'D
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<..或者..> 2j4VW0:
X||oiqbY
<. v=i[s
// 不带换行 7SXi#{
? "Hello, world!" |j^>6nE
/Rx%}~x/m
// 或者 t{!}^{
"5
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// 带换行 /.$n>:XR
?? 'Hello, world!' @6
gA4h
.> N^h,[
z mrk`o~
=:6Y<ftC
OCaml &]pW##
let main () = TxN#3m?G
print_endline "Hello world!";; A:p7\Kp;5}
5^GUuFt5m
H=Yl
@
Pascal 5$GE 3IER8
program Hello; u+[ZWhKUp
begin rA8neO)
writeln('Hello, world!'); YqR
MVWcnk
end. }3lM+]pf
m{_\@'q
vay_QxB5
Perl V{{b^y
#!/usr/local/bin/perl vsqfvx
print "Hello, world!\n"; "]*0)h_
S=krF yFw
exTpy
PHP eO(VSjo'`
<?php
@5acTYQ
print("Hello, world!"); 9!_`HE+(XJ
?> sA3 4`ZAa
ut& RKr3
+S^Uw'L$=T
Pike a`q">T%q
#!/usr/local/bin/pike cEve70MV
int main() h+,zfVJu
{ 2B=yT8
write("Hello, world!\n"); [% |i
return 0; Cj_cu
}
Rc0OEs%7P
j@ UIN3
RA>xol~xy
PL/I T1M4@j
Test: procedure options(main); 8.{5c6G
declare My_String char(20) varying initialize('Hello, world!'); NLoJmOi;L7
put skip list(My_String); rm+|xvZ4
end Test; 9N5&N3
!j%v Ue;t
+7^%fX;3pW
Prolog 8g(%6 ET
goal #&1mc_`/
write("hello,world!"). ,D+pGxbr
h[ba$S,T
z1T.\mzfX
Python $w)yQ %
#!/usr/local/bin/python Rl.3p<sX
print "Hello, world!" SEIGs_^'\
Q;)[~p
'F5&f9A
REXX 8nt:peJ$+
say "Hello, world!" #)GL%{Oa
X*]uLgbl
+sQ=Uw#e
Ruby "sUL"i
#!/usr/bin/ruby (](:0H
print "Hello, world!\n" ,m8l
/wG
xs.>+(@|;
B r`Xw^S
Scheme &h`s:Y
(display "Hello, world!") [Sg1\UTl
(newline) i0v;mc
X4Q?]{
] 8+!
sed (需要至少一行输入) %gkRG66
sed -ne '1s/.*/Hello, world!/p' a+uSCs[C
",w@_}z:
['tGc{4
Smalltalk 7xMvf<1P
Transcript show: 'Hello, world!' g.SFl
fp.,MIS
rNO'0Ck=
SNOBOL t*NZ@)>
OUTPUT = "Hello, world!" \WQ\q
\
END ;
"ux{ .
!0zbWB9
E2Q;1Re@
SQL mHM38T9C%
create table MESSAGE (TEXT char(15)); b" 1a7
insert into MESSAGE (TEXT) values ('Hello, world!'); FF0N{bY
select TEXT from MESSAGE; 3yszfWr
drop table MESSAGE; ,5mK_iUw3
"n^h'// mn
&-:ZM0Fl
Tcl
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#!/usr/local/bin/tcl f<=<:+
puts "Hello, world!" S*Qip,u
%\6|fKB4<
AA6_D?)vv
TScript Y}&//S A
? "Hello, world!" aqQ
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6y)TXp
47|Lk]+O
Turing n;@PaE^8=
put "Hello, world!" W-qec
"T=Z/@Vy
A5S9F8Q/]
UNIX-style shell GPONCL8(0
程序中的/bin/sh可改为您使用的shell JF!JY( U,
Ew5(U`]
#!/bin/sh j1Fy'os"!
echo 'Hello, world!' uUB,OmLN
v*Ds:1"H-I
4w\
r
`@
GUI
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d&BocJ
Delphi qsOA(+ZP
program HelloWorld; JR8 b[Oj.S
uses c@wSv2o$
Dialogs; .vE=527g)
begin 9t:F![rg
ShowMessage('Hello, World!'); A'vQtlvKA
end. Jz&a9
Cc/h|4
[=7=zV;}4
Nuva 2BZYC5jy
<. sD H^l)4h
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ROlef;/A
.> s6bILz-u
HY0q!.qog
hiq7e*Nsb
Visual Basic DDxbIkt
MsgBox "Hello, world!"
Yz(k4K
L
'或者 YT'G#U1x~
Print "Hello, world!" a"SH_+T{
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{; #u~e(W
Visual FoxPro _0N=~`'
? "Hello, world!" I@Pp[AyG
-sO[,
sU! h^N$
X11 7#d>a=$h
用一个程序 cyrVz4_a
me:~q#k
xmessage 'Hello, world!' ^0)Mc"&{
F*m^AFjs
用C++和gtkmm 2 QK% Nt
5$f
vI#NO<
#include <iostream> Uc%n{
a-a
#include <gtkmm/main.h> ,5!&}
#include <gtkmm/button.h> +`tl<rg;
#include <gtkmm/window.h> 4<}!+X7m
using namespace std; > %h7)}U
% `Q[?(z
class HelloWorld : public Gtk::Window c%y(Z5
{ vT/e&8w
public: 2-!OflkoM0
HelloWorld(); Z/-9G
virtual ~HelloWorld(); mApn[)?tv
protected: )4:K@
Gtk::Button m_button; qTSyy=
virtual void on_button_clicked(); ~tK4C |
}; Hdvtgss!
jf&B5>-x
HelloWorld::HelloWorld() : m_button("Hello, world!") sZe$?k|
{ T8<pb^#
set_border_width(10); .5L|(B=H
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); s?Lx\?T
add(m_button); >QyJRMY
m_button.show(); 21NGsG
} paKur%2u
0RHKzk6~c
HelloWorld::~HelloWorld() {} ` 9;0Y
LLy w9y1
void HelloWorld::on_button_clicked() U*sjv6*T
{ w`BY>Xft0
cout << "Hello, world!" << endl; K[wny0 (
} eTg8I/)%B
gu?e%]X3
int main (int argc, char *argv[]) y8*MNw
{ jfmHc(fX4
Gtk::Main kit(argc, argv); C,;T/9
HelloWorld helloworld; +kA>^
Gtk::Main::run(helloworld); WX"iDz.
} z$g
cK>@l
y;Ez|MS
@*?)S{8
Java /my5s\;s|z
import java.awt.*; 8;PS>9<
import java.awt.event.*; rA+UftC:p6
SEf RU`
public class HelloFrame extends Frame r]q;>\T'
{ f^JiaU4 [
HelloFrame(String title) ),{v
{ r ^=rs!f@
super(title); EPEWyGw
} 8y:/!rRN
public void paint(Graphics g) ;x<5F+b
{ mJxr"cwHl
super.paint(g); (vX)
<Z
!
java.awt.Insets ins = this.getInsets(); Zv]'9,cbk
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); /esdtH$=
} 6=cfr; BH2
public static void main(String args []) ( p(/
{ yMG(FAyu
HelloFrame fr = new HelloFrame("Hello"); z*V 8l*
su$IXI#R-&
fr.addWindowListener( 9sP;s^#t7U
new WindowAdapter() j_I[k8z
{ In[rxT~K}Q
public void windowClosing(WindowEvent e) BiY-u/bH9a
{ dU}Cb?]7s
System.exit( 0 ); mkE_ a>
} Sp7VH+
} R$XHjb)
); _0cCTQE
fr.setResizable(true); A<h^.{
fr.setSize(500, 100); O2pntKI
fr.setVisible(true); "D\>oFu
} --fRh N>
} 1d$qr`
?"F9~vx&G
ol0i^d*9F
Java Applet ^ps6\>=0cW
Java Applet用于HTML文件。 @4t_cxmD
7vo8lnQ{
HTML代码: 4,,DA2^!
%p48=|+
<HTML> H(hE;|q/
<HEAD> i:a*6b.U@N
<TITLE>Hello World</TITLE> zif&