“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。 (^s_w03
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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》。 CFS3);'<|
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以下是用不同语言写成的Hello World程序的几个例子: *~lgU4
Ada )DZ-vnZ#t0
with Ada.Text_Io; use Ada.Text_Io; ? 3E_KGI
procedure Hello is tX`[6`
begin ~m;MM)_V
Put_Line ("Hello, world!"); nluyEK
end Hello; 4\eX=~C>:
:pF]TY"K.
O]r3?=
汇编语言 {-7yZ]OO$
EX_sJ c
x86 CPU,DOS,TASM MnrGD>M@|
MODEL SMALL Z!=Pc$?
IDEAL D A)0Y_
STACK 100H yU8Y{o;:
+]~w ?^h
DATASEG UC
LjR<}
HW DB 'Hello, world!$' H*
L2gw
LK-6z w5=(
CODESEG kI[O {<kQ
MOV AX, @data my #u^O;
MOV DS, AX sz2SWk^&
MOV DX, OFFSET HW 8iH;GFNJ7'
MOV AH, 09H 22|M{
INT 21H 7[.Q.3FL
MOV AX, 4C00H i11GW
INT 21H vaCdfO&
END a]=vq(N'r
AL$Ty
2Q'XB
x86 CPU,GNU/Linux,NASM
8JOht(m
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). SUi1*S
;Enter this into "hello.asm" then type: /B?SaKh
;"nasm -f elf hello.asm" /zP)2q^
;"ld hello.o -o hello" iYQy#kO
;"./hello" 2WECQl=r
0}7Rm>
section .data ;data section declaration [
*a>{sO[
msg db 'Hello World!',0AH 6l]?%0[*
len equ $-msg ;string length P;o>~Y>x
c:_i)":
section .text ;code section declaration <7-,`
global _start ;entry point (start of execution) LW
3J$Am
_start: mov edx,len ;string length D}/.;]w<[&
mov ecx,msg ;string start eHyuO)(xH1
mov ebx,1 ;file handle: stdout .VEfd4+ni{
mov eax,4 ;sys_write h|uP=0
int 80h ;kernel system call hA1hE?c`
/ZN5WK
mov ebx,0 ;return value w58 QX/XG
mov eax,1 ;sys_exit 1Y"qQp
int 80h ;kernel system call N4(VRA
*>*/|
K]*ERAfM%m
x86 CPU,Windows,MASM32 $>s@T(
.386 2u H\8A+'f
.model flat,stdcall U*U)l$!
option casemap:none v%~ViOgL\
;Include 文件定义 0Lz56e'j
include windows.inc 2Xs < 1rF
include user32.inc }`FC__
includelib user32.lib sW3D
(
n
include kernel32.inc [Et\~'2w8=
includelib kernel32.lib ~{$'s p0
;数据段 R$m?&1K
.data :+^llz
szCaption db 'A MessageBox!',0 @gGuV$Mw
szText db 'Hello,world!',0 R*G>)YH
;代码段 ly5L-=Xb
.code ]H'82a
start: QD VA*6F
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ,lYU#Hx*
invoke ExitProcess,NULL >ZsK5v
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> S2SQ;s-t_
end start Z'm%3
%--5bwZi
4\WkXwoqQO
AWK buyz>ICP
BEGIN { print "Hello, world!" } <Py/uF|
D5vtZu!"
RtQfE+
BASIC emIbGkH
传统版BASIC(例如GWBASIC): Pg C]@Q%
n:)Y'52}
10 PRINT "Hello, world!" {X"]92+
20 END dg8\(G
9Bw5 t@
或在提示符输入: 1/J*ki+?
r_RTtS#
?"Hello, world!":END h!%`odl%
T )]|o+G
现代版BASIC(例如Quick BASIC): v!C+W$,T
Gw,kC{:C
Print "Hello, world!" tV4aUve
XYTcG;_z
以下的语句在Quick BASIC中同样有效: H hH'\-[t
=B%e0M
? "Hello,world!" FEswNB(]*
y^BM*C I
!Shh$iz
BCPL r26Wysi~%
GET "LIBHDR" _I5+o\;1
xF+x I6
LET START () BE tJ=zk3BN~
$( lB@K;E@r8
WRITES ("Hello, world!*N") @eU/g![u
$) UbH=W(%
$ayD55W4
P*sCrGO%
Befunge a,9GSKXo1
"!dlrow olleH">v sxa
(
, {Vu:yh\<
^_@ t4uxon
{u3u%^E;R
H@2+wr)$}
Brainfuck LK~0ck7
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< `q*ABsj
+++++++++++++++.>.+++.------.--------.>+.>. Z] }@#/
n
~;Kl/Z
IW*.B6Hw8
C j
pV
#include <stdio.h> 8;rS"!qM
{4*%\?c,n
int main(void) FM];+d0
{ tgnXBWA`!
printf("Hello, world!\n"); 9Ua@-
return 0; /% 1lJD
} ]h@:Y]
OSU=O
"rJL ^ \r
C++ 4ebGAg ?_
#include <iostream> 5o#8DIal
_;W|iUreb
int main() }qPo%T
{ 8^T$6A[b
std::cout << "Hello, world!" << std::endl; P*]g*&*Y +
return 0; ;oE4,
} Lq^/Z4L
1]~}0;,
f#mpd]e+6
C++/CLI -XB>&dNl)T
int main() zZQoY_UI
{ dGjvSK<1@
System::Console::WriteLine("Hello, world!"); K2Zy6lGOZ
} I*"]!z1
R\?!r4
_Qas+8NW
C# (C Sharp) Jsl,r+'H
class HelloWorldApp { q<l]jn9
{ v>R.ou(
public static void Main() =c'LG
{ A:Z:&(NtE:
System.Console.WriteLine("Hello, world!"); &5<lQ1
} #$E
vybETx
} ,5:86'p
3WS %H17
C54)eT6
COBOL ,zaveQ~l
IDENTIFICATION DIVISION. B%/Pn
2
PROGRAM-ID. HELLO-WORLD. \Qn8"I83AV
k@'.d)y0`
ENVIRONMENT DIVISION. MiRB*eA
:QNEA3Q
DATA DIVISION. &$[{L)D
Xqk$[peS
PROCEDURE DIVISION. oGZ9@Y)(T
DISPLAY "Hello, world!". DS fKUx&
STOP RUN. \ZB;K~BV&
Ycwb1e#
o hCPNm
Common Lisp &V
L<Rx
(format t "Hello world!~%") .Pi67Kj,
>Ko )Z&j9W
cae}dHG2
DOS批处理 TXM.,5Dx\
@echo off l{4\Wn Va
echo "Hello, world!" * ?K=;$
4=Zlsp
_1~Sj*
Eiffel ` {p5SYj
class HELLO_WORLD &k nnWm"
bvG
Vfr "
creation >vhyKq|g<
make n_Z8%|h
feature yLP0w^Q
make is M<729M
local IP3-lru
io:BASIC_IO yY+2;`CH
do 6-~
!!io "?!IPX2\S
io.put_string("%N Hello, world!") V4>P8cE
end -- make 6`i'
end -- class HELLO_WORLD g7pFOcV
=
N#WwNC
tkmW\
Erlang
tXx9N_/
-module(hello).
O>3'ylBQ
-export([hello_world/0]). q%"nk
m:t$&
hello_world() -> io:fwrite("Hello, World!\n"). *QVE>{
\r2w@F{C
lc#H%Qlg
Forth =% p"oj]:
." Hello, world!" CR M\%{!Wzo8
ocMf}"
4 R]|
Fortran >h9U~#G=
WRITE(*,10) tv0xfAV
10 FORMAT('Hello, World!') g 0L 4
STOP O]>Or3oO
END km^AX:r1
z(ajR*\#
khR3[ju {^
HTML I'gnw~
<HTML> MG6Tk(3S
<HEAD> \yqiv"'
<TITLE> Hello World! </TITLE> ;Cwn1N9S
</HEAD> >@X=E3
<BODY> 1;h>^NOq
<p>Hello World!</p> l@Ki`if
</BODY> P+/L,u
</HTML> gSC@uf
P/_XDP./U
kU /?#s
HQ9+ xqr`T0!&
H UaBR;v-.B3
kBTuM"
\S9z.!7v$
INTERCAL #O~Y[''C5X
PLEASE DO ,1 <- #13 5q<kt{06\
DO ,1 SUB #1 <- #238 JsC0^A;fM
DO ,1 SUB #2 <- #112 *,. {Xf
DO ,1 SUB #3 <- #112 0\mzGfd
DO ,1 SUB #4 <- #0 Q -+jG7vT
DO ,1 SUB #5 <- #64 ;(sb^O
DO ,1 SUB #6 <- #238 X:Zqgf
DO ,1 SUB #7 <- #26 [H&m@*UO
DO ,1 SUB #8 <- #248 kK(633s
DO ,1 SUB #9 <- #168 )sQbDA|p
DO ,1 SUB #10 <- #24 Ub"\LUu
DO ,1 SUB #11 <- #16 " n\!y~:
DO ,1 SUB #12 <- #158 &.}zZ/
DO ,1 SUB #13 <- #52 n5b
N/
PLEASE READ OUT ,1 H\S,^)drJ?
PLEASE GIVE UP 29GiNy+ob
fVkl-<?x
BK +JHT
Java h3:,Gbyap
public class Hello 4
qnQF]4
{ ]u:NE'0Xy
public static void main(String[] args) 5u&jNU5m_
{ mB\5bSFY`
System.out.println("Hello, world!"); }N[sydL
} )*uI/E
} Mk?9`?g.
5xiYCOy
3lJK[V{'#'
JSP ;8A_-$
<% QhZ%<zN
out.print("Hello, world!"); <D=%55
%> G{J9Fb8
Pa.!:N-
`SVR_
MIXAL $&4Z w6"=
TERM EQU 19 the MIX console device number bUBuJ
ORIG 1000 start address >ko;CQR
START OUT MSG(TERM) output data at address MSG %!q(zql
HLT halt execution M:x8]TA
MSG ALF "MIXAL" l`1ZS8 [.
ALF " HELL" h$k(|/+
ALF "O WOR" ]*@7o^4i
ALF "LD " 6`yq4!&v
END START end of the program Wc)^@f[~<
0+L5k!1D
/eE P^)h
Nuva o;O_N^_W
<..直接输出..> {S}/LSNB
Hello, world! FPqgncBHK
$q+7,,"
<..或者..> 4Qw!YI#40$
:9)>!+|'
<. ,Pl[SMt!
// 不带换行 cO<x:{`
? "Hello, world!" Ah"RxA
K<t(HK#[
// 或者 9/'j<v6M
]s<Q-/X
// 带换行 )I*V('R6|
?? 'Hello, world!' ;[|x5o/<
.> E{FN sa
~r{Nc j
n"Ev25%
OCaml s0\X%U("
let main () = 3(CUC
print_endline "Hello world!";; lUp 7#q
Ar\`OhR
1mB6rp
Pascal g'I S8@
program Hello; wOOPuCw?
begin ch-GmAj
9
writeln('Hello, world!'); Sw0~6RZ
end. >- :U
Pukq{/27
Yu8WmX,[
Perl \h"s[G zq
#!/usr/local/bin/perl ^x4gUT-Wy
print "Hello, world!\n"; \^_F>M
|S.-5CAh4
8]0R[kjD
PHP v7g-M
<?php ;z&p(e
print("Hello, world!"); =7$YBCuF
?> wi&m(f(~
04,]upC${W
h5Z%|J>;0
Pike ;ymUMQ%;/
#!/usr/local/bin/pike &3AGj,
int main() zJ#q*2A(Z
{ /423!g0Q
write("Hello, world!\n"); {gJOc,U4b
return 0; aE:fMDS|x
} xOS4J+' s@
vuD tEz
($ae n
PL/I AN^;~m ^
Test: procedure options(main); \l#=p+x5
declare My_String char(20) varying initialize('Hello, world!');
4$.4,4+
put skip list(My_String); 9=h A#t.#
end Test; S c@g;+#QU
;Ni+TS
tdEu4)6
Prolog 7|H !( a'
goal B:Msn)C~
write("hello,world!"). R_(A&,
}"_S;[{d
+8v!vuO'
Python &x\u.wIa
#!/usr/local/bin/python #OG_OI
print "Hello, world!" Z!tt(y\
<Y9ps`{}:
fNQ.FAK":
REXX tTC[^Dji
say "Hello, world!" MB:E/
aQkgkV;~
\9<aCJxN
Ruby z[V|W
#!/usr/bin/ruby z]~B@9l
print "Hello, world!\n" :MpIx&
1 vi<@i,
C$Ldz=d
Scheme 4RJ8 2yq-
(display "Hello, world!") <?QY\wyikz
(newline) 8la.N*
GIt;Y
7G!SlC
X}W
sed (需要至少一行输入) ,Rz,[KI|
sed -ne '1s/.*/Hello, world!/p' =]&R6P>
NhXTt!S6C
3,W2CN}
Smalltalk Peh(*D{
Transcript show: 'Hello, world!' USJ4qv+-
hAKyT~[n0
,~%Qu~\
SNOBOL ,)u}8ty3j
OUTPUT = "Hello, world!" 7DXT1+t
END A\k@9w\Ll;
% ;09J
8kX3.X`
SQL ct fKxGH
create table MESSAGE (TEXT char(15)); DSD#',
insert into MESSAGE (TEXT) values ('Hello, world!'); \snbU'lfP
select TEXT from MESSAGE; H>a3\M
drop table MESSAGE; /w`{]Ntgu
C
KBLM2D
pu,/GBG_
Tcl uXyNj2(d.
#!/usr/local/bin/tcl G{$9e}#
puts "Hello, world!" t&eY+3y,T
zH}u9IR3`
D3vd O2H
TScript ,m9Nd "6\
? "Hello, world!" A:0
L*Xn!d%
m},nKsO
Turing wnN@aO6g*
put "Hello, world!" `N;u#z
5d<-y2!M
O=G2bdY{,
UNIX-style shell !634 8nU:
程序中的/bin/sh可改为您使用的shell v93+<@Z
-|:7<$2#I
#!/bin/sh <~<I K=n
echo 'Hello, world!' aG?'F`UQ
0&$e:O'v
&7XB$
GUI yIh>j.P
0+m"eGwTm
Delphi (<=qW_iW
program HelloWorld; lD _
u
uses gU0}.b
Dialogs; p%G4Js.
begin ;XZ5r|V}
ShowMessage('Hello, World!'); DbH{;
Fb
end. u3dh MnUn
AW!|xA6'`:
L_=J(H|
Nuva >rB7ms/@E
<. f8B*D4R}
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) XK{`x<
.> [`yiD>
b'St14_
;_%61ZI?M<
Visual Basic /px*v<Aw1
MsgBox "Hello, world!" _bMD|
'或者 7Z93`A-=
Print "Hello, world!" ^kch]?
JwRdr8q
6JSa:Q>,
Visual FoxPro @L,T/m-HF
? "Hello, world!" na?jCq9C
HEhdV5B
NGd|7S[^+c
X11 P>0j]?RB
用一个程序 -!I.:97 N
GKZn|<Y|{c
xmessage 'Hello, world!' axxdW)+K
@$F(({?
用C++和gtkmm 2 <