“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。 auGt>,Zj\Q
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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》。 ,e>ugI_;*
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以下是用不同语言写成的Hello World程序的几个例子: gi"v${R
Ada
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with Ada.Text_Io; use Ada.Text_Io; (@&|
procedure Hello is WxXVL"
begin _Juhl^LM;
Put_Line ("Hello, world!"); 6XX5K@
end Hello; 1,pg:=N9
+_`F@^R_
C-2n2OM.
汇编语言 ]=_BK!O
,fYO>l';`f
x86 CPU,DOS,TASM f0hi70\(X
MODEL SMALL 4/d#)6
IDEAL 7l:H~"9r
STACK 100H B3yn:=80
:F<a~_k
DATASEG
=,?@p{g}
HW DB 'Hello, world!$' ZW\h,8%
|kVxrq
CODESEG ME |"pJ
MOV AX, @data _wX'u,HrC
MOV DS, AX !$d:k|b
MOV DX, OFFSET HW r@n%
MOV AH, 09H @-MrmF)<U
INT 21H {O"dj;RU
MOV AX, 4C00H 7,O^c+
INT 21H * }2o
\h6Q
END ev+NKUi=
w]%r]PwU+
j#~4JGZt
x86 CPU,GNU/Linux,NASM ")o.x7~N
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). :Mt/6}
;Enter this into "hello.asm" then type: &GbCJ
;"nasm -f elf hello.asm" _c #P
;"ld hello.o -o hello" 'dht5iI;Yw
;"./hello" .t}nznh
~MQN&
section .data ;data section declaration x'
msg db 'Hello World!',0AH m1`ln5(R
len equ $-msg ;string length k5PzY!N
^.<IT"
section .text ;code section declaration Uz62!)
global _start ;entry point (start of execution) z?i82B[Tm
_start: mov edx,len ;string length nF//y}
mov ecx,msg ;string start JE?XZp@V
mov ebx,1 ;file handle: stdout ?dTz?C.w
mov eax,4 ;sys_write {`}RYfZ
int 80h ;kernel system call 4mPg; n
^^%*2^
mov ebx,0 ;return value wDSU~\
mov eax,1 ;sys_exit ;aFQP:l/
int 80h ;kernel system call pFG~XW
BS{">lPmx
ksK
lw_%o
x86 CPU,Windows,MASM32 -BjB>Vt
.386 ,Wdyg8&.
.model flat,stdcall }wUF#
option casemap:none '~a!~F~>
;Include 文件定义 nGuF,0j
include windows.inc BzgDhDj
include user32.inc 2Hq!YsJ4]
includelib user32.lib 8m6L\Z&
include kernel32.inc GEvif4
includelib kernel32.lib +^"|FtKhE
;数据段 %b_zUFHPp
.data z24-hC
szCaption db 'A MessageBox!',0 V&f3>#n\
szText db 'Hello,world!',0 Zwq_&cJK
;代码段 7aU*7!U
.code ]w')~yk
start: U}{r.MryFG
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK M`5^v0,C
invoke ExitProcess,NULL "OWq]q#
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CE+\|5u
W
end start EGa}ml/G
SWmdU]
`@:^(sMo
AWK 4+uAd"
BEGIN { print "Hello, world!" } Yt{Y)=_t
t;?
q#!uc
8d>OtDLa
BASIC @ 8SYV}0H
传统版BASIC(例如GWBASIC): _-h3>.;h9
N8!B2uPQ
10 PRINT "Hello, world!" Lu<'A4Q1
20 END kdF#Nm
`5gcc7b
或在提示符输入: x JepDCUJ>
^h'
wZ7-\
?"Hello, world!":END mH8"k+k
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现代版BASIC(例如Quick BASIC): 3c
^_IuW-
bS0LjvY9g
Print "Hello, world!" >uI|S
k3e
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以下的语句在Quick BASIC中同样有效: le1'r>E$
s^E%Ukm
? "Hello,world!" K!'9wt
he!e~5<@y
]pFYAe ?
BCPL u9?85
GET "LIBHDR" 7o;}"Y1
x0 j$]$
LET START () BE _jr%s
$( 0t<TZa]V
WRITES ("Hello, world!*N") x2tx{Z
$) WJhI6lu
WSh+5](:
1[^2f70n
Befunge sKNN ahGjh
"!dlrow olleH">v ;BpuNB
, 7gvkd+-*
^_@ 7 Xw#
/#.6IV(
fD
V:ueO
Brainfuck p6>3
p
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 5z=;q!3
+++++++++++++++.>.+++.------.--------.>+.>. 0Y[mh@(
;K`qSX;;c(
"tm2YUG},s
C U@i+XZc"S
#include <stdio.h> w+[r$+z!k
I>fEwMk~
int main(void) P1)9OE
{ F2lTDuk>C
printf("Hello, world!\n"); %e=BC^VW
return 0; m~%IHWO'
} {PdyKgM
J6=*F;x6E
F~&bgl[YZ
C++ -3F|)qwK
#include <iostream> ix6j=5{
#dU-*wmJ
int main() wzF/`z&0?6
{ _0ep[r
std::cout << "Hello, world!" << std::endl; YJF!_kg.
return 0; >u~
l_?
} :+Y+5:U]
s [@II]
W}XDzR'<
C++/CLI B`9'COw
int main() He~)i)co
{ uq{w1O5
System::Console::WriteLine("Hello, world!"); yB,$4:C
} FG'F]fc%
<mi*AY
\"|E8A6/
C# (C Sharp) 6|~N5E~SX
class HelloWorldApp Z!v)zH\
{ 4ZSc'9e9
public static void Main() ~#pQWa5
{ _e7Y R+
System.Console.WriteLine("Hello, world!"); tg.[.vKs
} .\".}4qQ
} M e_.X_
!^:b?M
J7c(qGJI2
COBOL .T#h5[S2x
IDENTIFICATION DIVISION. bM+}j+0
PROGRAM-ID. HELLO-WORLD. <My4 )3
1-.6psE
ENVIRONMENT DIVISION. D!^&*Ia?2
\u9l4
DATA DIVISION. ViKN|W>T
M&wf4)*%0+
PROCEDURE DIVISION. *QH@c3vUe\
DISPLAY "Hello, world!". o/t^rY y
STOP RUN.
_xjw:
~M _@_
a9}7K/Y=d
Common Lisp p.~hZ+ x_
(format t "Hello world!~%") RoS&oGYqR
*6IytWOX5
Wl\.*^`k
DOS批处理 bbddbRj;
@echo off $pr\"!|z
echo "Hello, world!" KP,#x$Bg
1Tm,#o
"}fJ 2G3
Eiffel :qy< G!o
class HELLO_WORLD Qqm'Yom%T
Dc-v`jZ@)
creation oG{0{%*@
make lC|`DG-B
feature ObnQ,x(
make is P'l'[Kz{'
local 4AW-'W
io:BASIC_IO z_nv|5"
do ~XU%_Hz
!!io v'=$K[_
io.put_string("%N Hello, world!") r}T(?KGx
end -- make ]L)l5@5^
end -- class HELLO_WORLD W2yNwB+{
pUF$Nq>og
:O)\+s-
Erlang .=G?Zd
-module(hello). >L4q>S^v
-export([hello_world/0]). wB'GV1|jL
&"lSq2
hello_world() -> io:fwrite("Hello, World!\n"). S@4p.NMU
f(S9>c2
}B1f_T
Forth l;7T.2J'Z
." Hello, world!" CR $Iz *W]B!
6K Cv
{gT4Oq__
Fortran ]Xm+-{5?!R
WRITE(*,10) :Eb=jWA
10 FORMAT('Hello, World!') `@3{}
STOP E5iNuJj=f
END 1L;3e@G
MxLg8,M
2^w8J w9
HTML v]h^0WU
<HTML> +khVi}
<HEAD> .D3k(zZ
<TITLE> Hello World! </TITLE> '><I|c}
</HEAD> DMdVE P"m
<BODY> h~`^H9?M
<p>Hello World!</p> kY?w] lS)t
</BODY> W*;r}!ro
</HTML> 4++
&P9
tNvjwgV\
dkWV/DAm
HQ9+ |1%eo.
H &v)/mc7D
do[w&`jw8
x1`4hB
INTERCAL `eEiSf
PLEASE DO ,1 <- #13 w!_6*
DO ,1 SUB #1 <- #238 ;UpdkY
1
DO ,1 SUB #2 <- #112 u u$Jwn!S
DO ,1 SUB #3 <- #112 9;Qgby
DO ,1 SUB #4 <- #0 #J'V,_wH
DO ,1 SUB #5 <- #64 7TtDI=f
DO ,1 SUB #6 <- #238 B4/\=MXb
DO ,1 SUB #7 <- #26 ()^tw5e'^
DO ,1 SUB #8 <- #248 s|vx2-Cu]
DO ,1 SUB #9 <- #168 #;0F-pt
DO ,1 SUB #10 <- #24 @rP#ktz]
DO ,1 SUB #11 <- #16 y9Pw'4R
DO ,1 SUB #12 <- #158 <5!)5+G
DO ,1 SUB #13 <- #52 \_)[FC@
PLEASE READ OUT ,1 M{t/B-'4
PLEASE GIVE UP :z-?L0C=0
De
([fC
}ijFvIHV
Java rL,kDSLs
public class Hello )mH(Hx
{ 'YB{W8bR
public static void main(String[] args) |R;`
{ m1D,#=C,_
System.out.println("Hello, world!"); z2iWr
} .I Io
} e}NB ,o
5SEGV|%
=F% <W7
JSP kq*IC&y
<% ~^/BAc
out.print("Hello, world!"); KBDNK_7A
%> &})Zqc3Lqk
yu}T><Wst
w~~[0e+E
MIXAL q*<FfO=eQ
TERM EQU 19 the MIX console device number e$`;z%6y
ORIG 1000 start address }XD=N#p@z
START OUT MSG(TERM) output data at address MSG q{}U5(,{0
HLT halt execution BPSie0
MSG ALF "MIXAL" ]u.)6{
ALF " HELL" FI @kE19
ALF "O WOR" Y,m=&U
ALF "LD " *QT7\ht3
END START end of the program MKh}2B#S
_ xM}*_<VP
734H{,~
Nuva xB_78X1
<..直接输出..> ll
^I;o0
Hello, world! jA3xDbM
3F9 dr@I.7
<..或者..> lQL/I[}
B$G9#G6pZ
<. 4|hfzCjMI
// 不带换行 x|*m ok
? "Hello, world!" |[@v+koq
U9XOs)^
// 或者 0pBG^I`_
CN6b982&
// 带换行 ;?{OX
?? 'Hello, world!' ?'si^N
.> C_ W%]8u
f9HoQDFsM
n{!=gR.v.
OCaml w x,gth*p
let main () = h$d`Jmaq
print_endline "Hello world!";; =&mdxKoT0
=.IAd<C
)%q )!x
Pascal 7Q|v5@;pU
program Hello; 'DUYf5nF
begin +hIMfhF
writeln('Hello, world!'); hdpA& OteR
end. \/!jGy*
;Ouu+#s
bLC+73BjC
Perl X
CHN'l'
#!/usr/local/bin/perl J@IF='{
print "Hello, world!\n"; &g!yRvM!;Q
,o\~d?4
H284
]i
PHP Aj+0R?9tG
<?php DuRC1@e
print("Hello, world!"); `8D'r|=`Eh
?> <$8e;:#:
J6J;
!~>_
4Z/]7Ie
Pike 960rbxKy3
#!/usr/local/bin/pike 4x$Ts %]
int main() \7q>4[
{ AE4>pzBe
write("Hello, world!\n"); vl5r~F
return 0; mam(h{f$
} Ns-3\~QSi
G TW5f
mk
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PL/I {&h=
Test: procedure options(main); !%'c$U2
declare My_String char(20) varying initialize('Hello, world!'); AAK}t6
put skip list(My_String); #+;0=6+SM
end Test; I z)~h>-F
$,jynRk7q
:2MHx}]il
Prolog 'Inqa;TQz
goal xilA`uw`1
write("hello,world!"). HNV"'p;
Cc` )P>L
w]Ci%W(
Python Q".AmHn
#!/usr/local/bin/python UzUt=s!^H
print "Hello, world!" %|3NCyJ*7
6M@m`c
Zc*gRC
REXX ipJnNy;
say "Hello, world!" vLh,dzuo
D4ud|$s1
!\_li+
Ruby 1 =9 Kwd
#!/usr/bin/ruby d=:&tOCg2
print "Hello, world!\n" EXT_x q
f"A?\w @
0V?:5r<
Scheme }aa ~@K<A
(display "Hello, world!") ]}jY]
l
(newline) VTxLBFK;
qEB]Tj e[
u6BLhyS
sed (需要至少一行输入) #zc{N"!
sed -ne '1s/.*/Hello, world!/p' } T1~fa
cG I^IPI
|%-:qk4rG
Smalltalk oj~0zJI
Transcript show: 'Hello, world!' Y7
`i~K;
S t0AV.N1
[)83X\CO
SNOBOL 7eekTh, ?
OUTPUT = "Hello, world!" U^{'"x+
END gDjs:]/YR
olO&7jh7|
0YVkq?1x9
SQL xt"GO
b
create table MESSAGE (TEXT char(15)); 3re|=_
Hy
insert into MESSAGE (TEXT) values ('Hello, world!'); ZCS{D
select TEXT from MESSAGE; nyR4E}@:O
drop table MESSAGE; 7ezf.[{R
1A b=1g{
kKRZ79"7s
Tcl _<1uO=km6
#!/usr/local/bin/tcl o]|a5.O
puts "Hello, world!" ^gD%#3>X
5KFd/9
f,}]h~w\
TScript wH Q$F(by
? "Hello, world!" e(m#elX
= A;B-_c
ghd*EXrF
H
Turing 1f^4J~{
put "Hello, world!" C) "|sG
53cW`F
*PJg~F%
UNIX-style shell #D&]5"0cX
程序中的/bin/sh可改为您使用的shell O[[#\BL
YaDr.?
#!/bin/sh +aWI"d--h
echo 'Hello, world!' uk~4R@=&H
;/8oP ;X2
$}G03G@
GUI }{Ncww!iN
+\a`:QET
Delphi Y|iJO>_Uu=
program HelloWorld; DdL0MGwX
uses l[q%1-N
Dialogs; $Z;?d@6yI
begin -Vi"hSsUP
ShowMessage('Hello, World!'); @i[z4)"S
end. `9
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6n.W5
1g(s
Nuva $MEKt}S
<. t3)nG8>
)
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) j&.MT@
.> {IW pI *
nsJN)Pt
'_~=C-g
Visual Basic Ex
?)FL$4
MsgBox "Hello, world!" `_6!nkq8
'或者 jtk2>Ol
Print "Hello, world!" K~_[[)14b
<|s9@;(I
q.OkZI0n
Visual FoxPro Dm1;mR S+
? "Hello, world!" y+XB
qd B@P
Ny>tJ~I
X11 &\$l%icuo
用一个程序 D 5q Cn^R
uOqWMRsoi
xmessage 'Hello, world!' ' [fo
%:/_O*~)Yg
用C++和gtkmm 2 mlR*S<Z
{@u;F2?
#include <iostream> L_.BcRy
#include <gtkmm/main.h> PF-7AIxs"
#include <gtkmm/button.h> O4kBNUI/
#include <gtkmm/window.h> Y" s1z<?
using namespace std; pC2r{-
oY:6a
class HelloWorld : public Gtk::Window 9&=~_,wJd
{ `/'Hq9$F<"
public: D5]sf>~
HelloWorld(); Nw}y_Qf{
virtual ~HelloWorld(); !aD/I%X
protected: Zi=Nr3b
Gtk::Button m_button; ?L$
Dk5-W
virtual void on_button_clicked(); f~u]fpkz
}; 4}{HRs?
SLL%XF~/Sb
HelloWorld::HelloWorld() : m_button("Hello, world!") kmM1)- v
{
]k%Yz@*S
set_border_width(10); 'w`:p{E
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); M* (]hu0!
add(m_button); Bl-nS{9"
m_button.show(); }"<|.[V)
} hbhh
m
q"5iza__H
HelloWorld::~HelloWorld() {} :luVsQ
LoLmT7
void HelloWorld::on_button_clicked() 8oG0tX3i
{ 0l6z!@GhT
cout << "Hello, world!" << endl; -DrR6kGjR
} x-k}RI
?5nF` [rx
int main (int argc, char *argv[]) e%&2tf4
{ SUXRWFl
Gtk::Main kit(argc, argv); T^8t<S@`
HelloWorld helloworld; {T
Z7>k
Gtk::Main::run(helloworld); V+X>t7.Q
} 2JZf@x+}
pvJ@$L`'
vBUx)l
Java ~#dNGWwG
import java.awt.*; ,V!s w5_5m
import java.awt.event.*; _*1/4^
*
c]
:,5
public class HelloFrame extends Frame IMjnj|Fj
{ [K;J#0V+&L
HelloFrame(String title) jQzq(oDQw
{ -:`$8/A|
super(title); 0&Q-y&$7
}
9@
6y(#s
public void paint(Graphics g) c4oQ4
{ _rXTHo7P
super.paint(g); '<~l%q
java.awt.Insets ins = this.getInsets(); s<[%76Y!
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); (,`ypD +3q
} m(E-?VMHo
public static void main(String args []) 7jT]J
{ <<gk<_7`
HelloFrame fr = new HelloFrame("Hello"); 2e zQX2q
Mo|[Muj8b
fr.addWindowListener( <\GP\G
new WindowAdapter()
2J
=K\ L
{ LFob1HH*8
public void windowClosing(WindowEvent e) 9D++SU2:}
{ )f9f_^;
System.exit( 0 ); X>j% y7v
} O emi }
} `uy)][j-
); ulV)X/]1
fr.setResizable(true); *z;4.
OX
fr.setSize(500, 100); r k;k:<c
fr.setVisible(true); ^AK<]r<?L?
} WY#A9i5Ge
}
XeDiiI
Vu0jNKUV
Ro$'|}(+A
Java Applet 4G0Er?D
Java Applet用于HTML文件。 ~YKe:K+&z
1GKd*z
HTML代码: u
HqP b8
Bs(\e^}
<HTML> +uKh]RP
<HEAD> .ml24SeC
<TITLE>Hello World</TITLE> nIJ2*QJ
</HEAD> :}}5TJ wG
<BODY> Tz3 L#0:j
#z_lBg. K
HelloWorld Program says: =.O8G=;DOA
6/Y3#d
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> ra=U,
</APPLET> 2{Nv&ZX?
M eo(|U
</BODY> dO}6zQ\
</HTML> 1=gE,k5H
^WQ.' G5Q
Java代码: ol7%$:S
hdt;_qa
import java.applet.*; 9`Bmop
import java.awt.*; hu0z):>y
E|Mu1I]e
public class HelloWorld extends Applet os0fwv
{ HpY-7QTPJ~
public void paint(Graphics g) 3:Q5dr+1_
{ :["iBrFp
g.drawString("Hello, world!", 100, 50); OjTb2[Q
} |l)SX\Qf`@
} _SdO}AiG
]:jP*0bLx
fTd=}zY
java script O_}R~p
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 ;"46H'>!
$Y* d ' >
<script language="java script"> N|-M|1w96
function helloWorld() n4,b?-E>(
{ Uo?g@D
alert("Hello World"); !qk+>6~A,
} K8M[xaI@
</script> jsB%RvX
=n.d'
<a href="java script:this.location()" w%F~4|F
onclick="java script:helloWorld();">Hello World Example</a> <