“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。 Zu+Z7@$}/
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 lI&0
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以下是用不同语言写成的Hello World程序的几个例子: xvrCm`3n@
Ada
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with Ada.Text_Io; use Ada.Text_Io; ^l iyWl
procedure Hello is OSq"q-Q
begin Y<kvJb&1*
Put_Line ("Hello, world!"); 9D
0ujup
end Hello; A4SM@ry
+ 1v@L
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汇编语言 0}w>8L7i{
T=>&`aZH
x86 CPU,DOS,TASM IS8ppu&E
MODEL SMALL fQe- v_K
IDEAL <M 7WWtmx
STACK 100H ?=
ulfGrY
^WUF3Q**OU
DATASEG |'a5nh!
HW DB 'Hello, world!$' -M(:z
&d6'$h:kHb
CODESEG vU~#6sl
MOV AX, @data }l_) d
MOV DS, AX i[FBll-
MOV DX, OFFSET HW \y<n{"a
MOV AH, 09H G>H&M#7K
INT 21H .@xwl}o$OL
MOV AX, 4C00H Zcf?4{Kd?
INT 21H O'j;"l~H|
END @AWKEo<7.I
n:; 2Z
ZT|E1[Q
x86 CPU,GNU/Linux,NASM ~+4OG 0
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). r5r K>
;Enter this into "hello.asm" then type: }_Jai4O
;"nasm -f elf hello.asm" {)-%u8J\`N
;"ld hello.o -o hello" Q6DE|qnV
;"./hello" LM<OYRB(
l tQ:c
section .data ;data section declaration %n{E/06f
msg db 'Hello World!',0AH P$w0.XZa
len equ $-msg ;string length 7';PI!$
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section .text ;code section declaration OyTBgS G?a
global _start ;entry point (start of execution) z3>}(+
_start: mov edx,len ;string length PUucYc
mov ecx,msg ;string start YSeXCJ:Iy
mov ebx,1 ;file handle: stdout 8)M .W
mov eax,4 ;sys_write ^i@t OtS
int 80h ;kernel system call T!J\Dm-
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mov ebx,0 ;return value ,qaIdw [
mov eax,1 ;sys_exit m]&d TZV
int 80h ;kernel system call >JnEhVRQJ9
{?#g*QF|^
.F> cZ,
x86 CPU,Windows,MASM32 fr:RiOPn
.386 Yuh t<:`
.model flat,stdcall 5 {'%trDEy
option casemap:none y37n~~%
;Include 文件定义 ]D(%Ku,O%
include windows.inc DBVe69/S
include user32.inc
@(oz`|*
includelib user32.lib l|\Q~ D!o
include kernel32.inc _DH,$evS%
includelib kernel32.lib .D>%-
;数据段 R]L7?=
.data Elm/T]6
szCaption db 'A MessageBox!',0 QT?fp
>'
szText db 'Hello,world!',0 &]uhPx/
;代码段 lq+FH&
.code xS*f{5Hr8
start: ~Kt.%K5lgt
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK \e ( h6,@
invoke ExitProcess,NULL +&Sf$t 1
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ?%;)> :3N
end start m#DC;(Pn
\6nWt6M
/sC$;l
AWK epz2d~;
BEGIN { print "Hello, world!" } mltN$b%G=d
=yvyd0|35
kG\+f>XQ
BASIC eK4\v:oG1
传统版BASIC(例如GWBASIC): fWF\V[
Q9?/)&3Bu
10 PRINT "Hello, world!" A1Rt
20 END [o\O^d
@[.%A;E4
或在提示符输入: &LHQ)?
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?"Hello, world!":END HWD
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现代版BASIC(例如Quick BASIC): `ag>4?7?
(g4.bbEm
Print "Hello, world!" 1JJQ(b
)7O4j}B){
以下的语句在Quick BASIC中同样有效: 7S 1
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|Pwb7:a3
? "Hello,world!" `ySLic`
RNE})B
k)oD
BCPL hVo]fD|W
GET "LIBHDR" c&z@HEzV7
%|bqL3)a_
LET START () BE |f;u5r!^=
$( E#X(0(A)
WRITES ("Hello, world!*N") Ufd{.o[{-
$) w0(A7L:L
(Vnv"= (
`O ?61YUQH
Befunge E+k#1c|v$
"!dlrow olleH">v &$ZJfHD@
, ORHs1/L`j
^_@ i7v> 9p7
$e1==@
R
m?VA 1
Brainfuck %/NB263Db
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< *P]FX-D3
+++++++++++++++.>.+++.------.--------.>+.>. CqOvVv
=S7Xj`/
6O uB}*
C Li)rs<IX;m
#include <stdio.h>
'|V"!R)
O
N..B}J
int main(void) \7o&'zEw
{ <XG&f
printf("Hello, world!\n"); xwoK#eC~F
return 0; |X@ZM
} ] }XsP
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L,6v!9@
C++ +Q pgG4h
#include <iostream> 9cQZ`Ex
5'=\$Ob
int main() [vCZoG8+>
{ vJTdZ p
std::cout << "Hello, world!" << std::endl; KG7 ~)g
return 0; W
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} mX2i^.zH
tP/0_^m
gD`|N@W$5
C++/CLI l12Pj02 w
int main() /,#HGu]q'
{ &/)2P#u
System::Console::WriteLine("Hello, world!"); 62BT 3/~
} &GMBvmP
;$=kfj9 :7
IkW8$>
C# (C Sharp) I|&<!{Rq
class HelloWorldApp pK/r{/>r
{ oihn`DY{
public static void Main() ,i0Dw"/u
{ PX!$w*q
System.Console.WriteLine("Hello, world!"); gt]k#(S
} ZbBz@1O
} cP8g.+
Jc8^m0_
b2rlj6d
COBOL ?fv5KdD
IDENTIFICATION DIVISION. VS.~gHx
PROGRAM-ID. HELLO-WORLD. Jkf%k3H3I*
LdAWCBLS
ENVIRONMENT DIVISION. $wnK"k%G
'F-;uN
DATA DIVISION. v/ $~ifY"
,_+Gb
PROCEDURE DIVISION. wg-qq4Q\
DISPLAY "Hello, world!". (^),G-]
STOP RUN. S(*u_
YF)uAJ Ak
barY13)$U
Common Lisp U1oZ\Mh
(format t "Hello world!~%") )I&,kH)+
YCMXF#1
@q(sig00nr
DOS批处理 (*6kYkUK
@echo off v*Dz4K#
echo "Hello, world!" r>o#h+'AV
}o9fpo|
,$4f#)
Eiffel )-jA4!&
class HELLO_WORLD >oD,wSYV~
10gh4,z[
creation D5Z@6RVt
make ,1|Qm8O
feature ICvl;Q
make is !!KA9mP
local 8D]&wBR:
io:BASIC_IO 9-B/n0
do e^ Aw%t
!!io FqWW[Bgd
io.put_string("%N Hello, world!") Jam&Rj,
end -- make ^Kbq.4
end -- class HELLO_WORLD GMv.G
:ebu8H9f%
#aHJ|[[(n
Erlang $V/Hr/0
-module(hello). i#pBzJ
-export([hello_world/0]). qpt},yn)C
T<a/GE/
hello_world() -> io:fwrite("Hello, World!\n"). fpPB_P{Ua
t ZL|;K
s@$SM,tnn
Forth 6x*$/1'M3;
." Hello, world!" CR 4lp90sa
D*_Z"q_B
NsJ]Tp5!
Fortran Ia@!Nr2
WRITE(*,10) [@_IUvf^.
10 FORMAT('Hello, World!') O-3R#sZ0
STOP E[=#Rw!*
END 5+Ld1nom
7QXp\<7
Jx+e_k$gHO
HTML nSSj&q- O
<HTML> oR@emYL
<HEAD> dEu\}y|
<TITLE> Hello World! </TITLE> &_1x-@oI2:
</HEAD> j9sLR
<BODY> ~@H9h<T
<p>Hello World!</p> Y2!P!u+Q
</BODY> &=.SbS
</HTML> xRrKrs &eE
^D]y<@01
V\m51H1mqo
HQ9+ [QZ8M@Gty#
H p=T6Ix'_2e
BD_"w]bqD
-)pVgf
INTERCAL G<m6Sf
PLEASE DO ,1 <- #13 ~a ]R7X7
DO ,1 SUB #1 <- #238 }Q1m
DO ,1 SUB #2 <- #112 O<\h_
DO ,1 SUB #3 <- #112 Ly~s84k_po
DO ,1 SUB #4 <- #0 cT.8&EEW
DO ,1 SUB #5 <- #64 IxU#x*
DO ,1 SUB #6 <- #238 6j6P&[
DO ,1 SUB #7 <- #26 @xkI?vK6
DO ,1 SUB #8 <- #248
m1#,B<6
DO ,1 SUB #9 <- #168 u-k!h
DO ,1 SUB #10 <- #24 Fo;.
DO ,1 SUB #11 <- #16 G0mvrc-(
DO ,1 SUB #12 <- #158 m`!Vryf
DO ,1 SUB #13 <- #52 D>6vI
PLEASE READ OUT ,1 *7`amF-
PLEASE GIVE UP "t>WM
hmES@^n!_
NGp^/PZX0
Java W5U;{5
public class Hello !#TM%w
{ k:0nj!^4w>
public static void main(String[] args) *USzzLq
{ XJguw/[wm
System.out.println("Hello, world!"); +rOfQ'lQ
} WW3! ,ln_
}
o%3VE8-
{SJnPr3R
rhH !-`m
JSP Sd?+j;/"
<% cS;O]>/5
out.print("Hello, world!"); y"nL9r.,:
%> ,0^9VWZV
5cZKk/"Ad}
KKGwMJku}
MIXAL JrJTIUf_
TERM EQU 19 the MIX console device number mKZ^FgG
ORIG 1000 start address "SFs\] Z
START OUT MSG(TERM) output data at address MSG <,+6:NmT
HLT halt execution m'"Ra-
MSG ALF "MIXAL" FZ@8&T
ALF " HELL" G_5E#{u
ALF "O WOR" 1vL$k[^&d
ALF "LD " G1S:hw%rp
END START end of the program ;_D5]kl`
pWN5 >HV
L.$+W}
Nuva kT,2eel
<..直接输出..> 1g1gu=|Q
Hello, world! B[{Ie
G'
;o?Wn=J
<..或者..> l
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1IeB_t
<. InfUH8./t
// 不带换行 Yvxp(
? "Hello, world!" -) \!@n0
|7wiwdD"
// 或者 ^#,cWG}z
r57rH^Hc
// 带换行 _^Lg}@t
?? 'Hello, world!' ]M.)N.T
.> ((E5w:=?
5%%A2FrB.S
OJ4-p&1
OCaml 5c+7c@.
let main () = t.]c44RY
print_endline "Hello world!";; r/BiR0$E
>a5avSn
K0\Wty0
Pascal 3I.0uLjg^
program Hello; d+Bz
pS@p
begin d$*SVd:
writeln('Hello, world!'); }RY&f4&GV,
end. -E>se8 %"
!e(ZEV g
#Cz6c%yK
Perl t.tdY
#!/usr/local/bin/perl "Qxn}$6-
print "Hello, world!\n"; :O{oVR
`Ef&h V
^><B5A>;
PHP n:5*Tg9
<?php zV=(e( [
print("Hello, world!"); h|
+(
?> K#],4OG
*3W e5
KqT~MPl
Pike n\D3EP<s
#!/usr/local/bin/pike ky5 gU[
int main() |
QI-gw
{ 2\1\Jn#q
write("Hello, world!\n"); tf@x}
return 0; ^iwM(d]#5
} Y2Y!^A89
C},$(2>0+
`L<)9*
PL/I gZ1|b
Test: procedure options(main); 7f`x-iH!]7
declare My_String char(20) varying initialize('Hello, world!'); )gAFz+
put skip list(My_String); Q`X5W
end Test; N~A#itmdx
#O.-/&Z
D7Nz3.j
Prolog j']Q-s(s
goal pd{;`EW|
write("hello,world!"). ,.+"10=N.
D3emO'`gQ
vDAv/l9
Python SY}iU@xo
#!/usr/local/bin/python n! (g<"
print "Hello, world!" T6ZJ SKM
iAlFgOk'
V6ioQx=K#
REXX NR)[,b\v
say "Hello, world!" CQcb !T
"rA:;ntz
fJ3qL#'
Ruby YMx
zj
#!/usr/bin/ruby ;Q.g[[J/p
print "Hello, world!\n" {@u}-6:wAT
8c'0"G@S
%KmB>9
Scheme _(\\>'1q!
(display "Hello, world!") |KFWW
(newline) \'L6m1UZ%
D{,B[5
" lf_`4
sed (需要至少一行输入) ]41G!'E=
sed -ne '1s/.*/Hello, world!/p' )LYj,do
ab 1\nzpd
&xqe8!FeA
Smalltalk : |c,.uO
Transcript show: 'Hello, world!' :l>T~&/98
7=ZB;(`L1
xUD$i?3z
SNOBOL F*d{<
OUTPUT = "Hello, world!" u[jdYWQa
END wz!]]EQ!o
Ffm Q$>S
| ~G;M*q
SQL LE Y Y{G?
create table MESSAGE (TEXT char(15)); j$]t`6gG
insert into MESSAGE (TEXT) values ('Hello, world!'); NCvwg
select TEXT from MESSAGE; Iq\sf-1E
drop table MESSAGE; XY|-qd}A
7OOB6[.fu
S@7A)
Tcl cQv*lvG9>
#!/usr/local/bin/tcl `4&\ %9
puts "Hello, world!" i
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*qG=p`
m[{*an\
TScript qgca4VV|z
? "Hello, world!" y( MF_'l
kkrQ;i)Z
T"Q4vk,3*J
Turing DoPm{055J
put "Hello, world!" ;8g#"p*&
]'_z(s}
:7Vm]xd}do
UNIX-style shell Ok6Y'P
程序中的/bin/sh可改为您使用的shell KX<RD|=
|<ke>j/6n
#!/bin/sh F;ONo.v;
echo 'Hello, world!' `s:| 4;.
XpH[SRUx
&r<<4J(t
GUI ]hvB-R16f
>M:5yk@
Delphi _n}!1(xYa`
program HelloWorld; Y+?bo9CES!
uses hkU#
lt
Dialogs; Y\p
yl
begin =,@SZsM*B
ShowMessage('Hello, World!'); g'Xl>q
end. ]K9x<@!
KUyua~tF
e('c9 Y
Nuva 6!"15dPN
<. L8j,?u#
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 2%8N<GW.F
.> wqGZkFg1
7GP?;P
<01B\t7
Visual Basic #^v5Eo
MsgBox "Hello, world!" r>)\"U#
'或者 F}01ikXDb'
Print "Hello, world!" Q49|,ou[H
Sej$x)Q\t
B)-S@.u
Visual FoxPro )@Zel.XD
? "Hello, world!" r\NnWS J
GS{9MGl
^2??]R&Q
X11 %eah=e
用一个程序 NfO0^^"
p~mB;pZ%;
xmessage 'Hello, world!' ZbGyl}8ua
YT:1=Nf}
用C++和gtkmm 2 uVO9r-O8p
0?:ZER v
#include <iostream> u3ZG;ykM
#include <gtkmm/main.h> Sph+kiy|
#include <gtkmm/button.h> vB
Jva8;Q
#include <gtkmm/window.h> ;I7Z*'5!
using namespace std; r"Bf@va
)3
r1; ^W
class HelloWorld : public Gtk::Window wd]Yjr#%Ii
{ fBF}-{VX(
public: ]S[r$<r$
HelloWorld(); lxd<^R3i#^
virtual ~HelloWorld(); 2
g8PU$T
protected: -?(RoWv@X&
Gtk::Button m_button; !^7:Rr_
virtual void on_button_clicked(); E.6\(^g
}; hnZHu\EJ
]@P*&FRcZ
HelloWorld::HelloWorld() : m_button("Hello, world!") O>Sbb2q?"
{ b#m47yTW9<
set_border_width(10); 96.Wfx
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); F,zJdJ
add(m_button); l}^#kHSyd
m_button.show(); 1=X=jPwO C
} <