“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。 rlY0UA,
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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》。 b(;u2 8
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以下是用不同语言写成的Hello World程序的几个例子: xwof[BnEZ
Ada ,S=[#
with Ada.Text_Io; use Ada.Text_Io; dVEs^ZtI
procedure Hello is I@/
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begin k/wD@H N
Put_Line ("Hello, world!"); ckA\{v
end Hello; "}*D,[C5e
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g}D)MlXRq
汇编语言 ^?+[yvq
4i)5=H
x86 CPU,DOS,TASM -GPJ,S V>
MODEL SMALL >aO.a[AM
IDEAL 2RX]~}
STACK 100H 4F#H$`:[
rBTg"^jsw
DATASEG {jB>]7
HW DB 'Hello, world!$' 06f%{mAZS
dnoF)(d&Cm
CODESEG y&,|+h
MOV AX, @data D0FX"BY7
MOV DS, AX .s*N1
U?h
MOV DX, OFFSET HW 7b>_vtrt
MOV AH, 09H jj2iF/
INT 21H :
"|/
MOV AX, 4C00H 9efey? z
INT 21H s;OGb{H7
END B\RAX#
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7 mCf*|
x86 CPU,GNU/Linux,NASM \+R %KA/F
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax).
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;Enter this into "hello.asm" then type: Gg'!(]v
;"nasm -f elf hello.asm" 7s?#y=M
;"ld hello.o -o hello" {fACfSW6
;"./hello" l2St)`K8
j9>[^t3U
section .data ;data section declaration IAH"vHM
msg db 'Hello World!',0AH Ur
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len equ $-msg ;string length Ra|P5
^Qx?)(@
section .text ;code section declaration Hh^ "c}
global _start ;entry point (start of execution) kJ5z['4?
_start: mov edx,len ;string length sWr;%<K
mov ecx,msg ;string start RBrb7D{
mov ebx,1 ;file handle: stdout hAf/&yA@
mov eax,4 ;sys_write _,L_H[FN
int 80h ;kernel system call (Ut8pa+yX
p [C
9g
mov ebx,0 ;return value D5c
8sB
mov eax,1 ;sys_exit $^iio@SW{
int 80h ;kernel system call -13}]Gls7Q
)%@7tx
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x86 CPU,Windows,MASM32 p$\>3\
.386 _s5^\~ao
.model flat,stdcall lwf4ke
option casemap:none EU[eG^/0@
;Include 文件定义 $@'BB=i
include windows.inc ?0t^7HMP
include user32.inc X+]>pA
includelib user32.lib &K0b3AWc
include kernel32.inc Wz'!stcp
includelib kernel32.lib <8b1OdA
;数据段 s<{ Hu0K$
.data j$q5m 24L
szCaption db 'A MessageBox!',0 _ARG
"
szText db 'Hello,world!',0 \+V"JIStUj
;代码段 >O\+ 9T@
.code !0@4*>n
start: Z>`\$1CI
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ! eZls
invoke ExitProcess,NULL $97O7j@
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .1[.f}g$J
end start -E?:W`!
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BEGIN { print "Hello, world!" } T]wI)
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BASIC jlP*RX
传统版BASIC(例如GWBASIC):
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`*vO8v
10 PRINT "Hello, world!" HMF2sc$N
20 END \eKXsO"d
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或在提示符输入: >}* W$i
:o8`2Z *g
?"Hello, world!":END Nb$0pc1J<
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现代版BASIC(例如Quick BASIC): #S?^?3d
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Print "Hello, world!" "BSY1?k{
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以下的语句在Quick BASIC中同样有效: /GGyM]k3
UH>~Y
N
? "Hello,world!" 7_ix&oVI
ch8VJ^%Ra1
B9NUafK=
BCPL X6
BIZ
GET "LIBHDR" IRQtA
Z V$
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LET START () BE ,CyX*k8o
$( "v:k5a(
WRITES ("Hello, world!*N") (O J/u)W^
$) zU!{_Ao9
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ura&9~
Befunge Z (6.e8fK
"!dlrow olleH">v tAN!LI+w
, oUnb-,8n
^_@ 9$$ Ijf
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Brainfuck 29J|eBvxx
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< @HbRfD/!
+++++++++++++++.>.+++.------.--------.>+.>. xK6`|/e
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.F7?}8>Z
C t}R!i-D|HB
#include <stdio.h> 8j>V?'Szk
S} UYkns*
int main(void) R7Qj<,
{ ~}b0zL
printf("Hello, world!\n"); n3$=&
return 0; Q$U.vF7BnP
} &$|~",
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(X@\2M4@T#
C++ legWY)4D;
#include <iostream> b~&cYk'
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int main() D
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{ 68?&`/t
std::cout << "Hello, world!" << std::endl; R_G2C@y*
return 0; 1K3XNHF
} ,mm97I
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lx2#C9L_
C++/CLI /4Wf\
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int main() g
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{ R8[VD iM6E
System::Console::WriteLine("Hello, world!"); /UunWZ u%
} &C
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qWW\d', .
P WS8Dpb
C# (C Sharp) H'3
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class HelloWorldApp S=P}Jpq?Y;
{ _:\rB
public static void Main() Q(<A Yu
{ 'G65zz
System.Console.WriteLine("Hello, world!"); dsw^$R}
} E&J<qTH9
} G)~>d/
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=b$g_+
COBOL 2j4202
IDENTIFICATION DIVISION. &PPnI(s^K
PROGRAM-ID. HELLO-WORLD. EC$F|T0f
B)7 :*Kj
ENVIRONMENT DIVISION. 8WDL.IO
s;P _LaIp)
DATA DIVISION. }BS
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vfqXHc
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PROCEDURE DIVISION. X$==J St
DISPLAY "Hello, world!". {P?Ge
STOP RUN. Fw[1Aa#
hvTc( 0;mB
<9>L^GgXA
Common Lisp 1.p?1"4\u
(format t "Hello world!~%") "oxUKT
m>Wt'Cc
B>E4,"
DOS批处理 9HR1m3
@echo off b [HnhAI
echo "Hello, world!" HAE$Np|>a
0>j0L8#^p
ds(X[7XGW
Eiffel /
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class HELLO_WORLD Uot(3p!S6
DA=LR
creation W\B@0Is o
make DOtz
feature H$?MPA-c
make is 2A
local ~L&z?'V
io:BASIC_IO G?F!Z"S
do Ke^/aGi}O
!!io '2l[~T$*
io.put_string("%N Hello, world!") "T /$K
end -- make y+B iaD!U
end -- class HELLO_WORLD 9*j"@Rm
tPiC?=4R
v89tV9O)
Erlang ~Fvz&dO
-module(hello). 3U?gw!M>
-export([hello_world/0]). "=]'"'B:
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hello_world() -> io:fwrite("Hello, World!\n"). =S54p(>
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SKf;Fe
Forth ^K`PYai
." Hello, world!" CR L7 FFa:#
I@N/Y{y#
w@P86'< v
Fortran /tkV/
WRITE(*,10) .vmCKZ
10 FORMAT('Hello, World!') @QJPcF"
STOP i`9}">7v~
END 68~]_r.a
}c9RDpjh~
hT=E~|O
HTML O:V.;q2]U
<HTML> F'<XB~&o
<HEAD> 7zQGuGo(
<TITLE> Hello World! </TITLE> l66 QgPA
</HEAD> /FTP8XHwL)
<BODY> (Ms #)E
<p>Hello World!</p> ?aaYka]
</BODY> %j2 :W\g:
</HTML> }cW8B"_"
sn[<Lq
Q Wm
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HQ9+ Rz>@G>b:
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I
Rwj
3o
1N]-WCxQ
INTERCAL \HoVS
PLEASE DO ,1 <- #13 ~EDO< O>3
DO ,1 SUB #1 <- #238 `aMnTF5:
DO ,1 SUB #2 <- #112 9@h-q(-
DO ,1 SUB #3 <- #112 /$qB&OWJn
DO ,1 SUB #4 <- #0 0^P9)<k'
DO ,1 SUB #5 <- #64 A@.ruG$
DO ,1 SUB #6 <- #238 ?)qm=mebY
DO ,1 SUB #7 <- #26 t P'._0n0
DO ,1 SUB #8 <- #248 *Q-uE
DO ,1 SUB #9 <- #168 vO zUAi
DO ,1 SUB #10 <- #24 g$=']A?W_
DO ,1 SUB #11 <- #16 >r:z`^p
DO ,1 SUB #12 <- #158 4[r:DM|8
DO ,1 SUB #13 <- #52 bA"*^"^
PLEASE READ OUT ,1 IQ#Kod;)
PLEASE GIVE UP s?sr0HZ
.Pe^u%J6F
,mp^t2
Java $f"Ce,f
public class Hello _}H`(d%N
{ <aMihT)dd
public static void main(String[] args) 's8LrO(=
{ d8jP@>
System.out.println("Hello, world!"); =6'D/| 3
} $xcU*?=K
} %E":Wv
ac43d`wpK
jA3Ir;a
JSP L@ N\8mf
<% Qmv8T
^+
out.print("Hello, world!"); I7#+B1t
%> gepYV}
>y@3`u]
2c9]Ja3:6
MIXAL L~M6ca"
TERM EQU 19 the MIX console device number Gnqun%
ORIG 1000 start address ]waCYrG<sY
START OUT MSG(TERM) output data at address MSG oM}P Wf-
HLT halt execution / vzwokH
MSG ALF "MIXAL" 6:bvq?5a5
ALF " HELL" xtS0D^
ALF "O WOR" Zg;Ht
ALF "LD " bu\D*-
END START end of the program g;nPF*(
lgCOp%>
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Nuva X 2('@Yh
<..直接输出..> =H^^A G\}
Hello, world! mhnK{M @56
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<..或者..> `ucr;P
`{@?O%UB
<. >\ ym{@+*
// 不带换行 sv>c)L}I
? "Hello, world!" A$'rT|>se
%lK]m`(
// 或者 'q*/P&x5
Dmk~t="Y
// 带换行 CY8=prC
?? 'Hello, world!' 0'y3iar
.> c:`&QDF
Y4/ !b
jDM^e4U.l
OCaml 6EX8,4c\
let main () = |)R{(AK-
print_endline "Hello world!";; I^y,@EHR
O7Awti-X
}qdGS<{
Pascal kKSn^qL*
program Hello; [hXU$Y>"0
begin /&'rQ`nd
writeln('Hello, world!'); L
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end. \5^GUT
&AlX).
a@WSIcX*W
Perl 8h7z
#!/usr/local/bin/perl 0~N2MoOl^
print "Hello, world!\n"; 5eSmyj-W
9G}Crp
{-Y% wM8<i
PHP xyTjK.N
<?php ,n?oNU
print("Hello, world!"); `BHPjp>
?> DJhCe==$v
Mi"dFx^Md
E MKv)5MH
Pike /7<l`RSr
#!/usr/local/bin/pike KrT+Svm
int main() H@,(
{ (f|3(u'e?
write("Hello, world!\n"); pVm'XP
return 0; GKKf#r74
}
fg1["{\
snyg
vSy#[9}
PL/I [Y]\sF;J
Test: procedure options(main); y"SVZ} ;|
declare My_String char(20) varying initialize('Hello, world!'); h"G#} C]
put skip list(My_String); sIh,@b
end Test; +V6N/{^5
%t^-Guz
,;yiV<AD
Prolog OL|UOG
goal d^WEfH
write("hello,world!"). NrdbXPHceN
.DSmy\FI5
L?e N(L
Python %<w)#eV?
#!/usr/local/bin/python m [FH>
print "Hello, world!" Cuq=>J
EBN'u&zX
@9^ozgg
REXX mmG+"g$|
say "Hello, world!" ^SKuX?f\
HW(cA}$
o4CgtqRs
Ruby |,89zTk'
#!/usr/bin/ruby Fh4kd>1D
print "Hello, world!\n" a$SGFA}V
14p <0BG
v(/T<^{cuk
Scheme Zi fAn
(display "Hello, world!") TPrqb
(newline) @<O
Bt d
u<l[S
Wo@0yF@
sed (需要至少一行输入) o'Byuct
sed -ne '1s/.*/Hello, world!/p' _f u?,
U1t7XZ3e
aoh"<I%]>4
Smalltalk uMToVk`Uv
Transcript show: 'Hello, world!' J
;=~QYn[
x2\,n
~I%m[fQ S
SNOBOL W"_")V=QBz
OUTPUT = "Hello, world!" V3NQij(
END kw>W5tNpf:
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0[JJ
SQL Oozt&* F
create table MESSAGE (TEXT char(15)); ,=tPh4>
insert into MESSAGE (TEXT) values ('Hello, world!'); `)5E_E3
select TEXT from MESSAGE; *1fq :--
drop table MESSAGE; #%xzy@`
EencMi7J
c-L1 Bkw
Tcl s=&&gC1
#!/usr/local/bin/tcl Pvq74?an`
puts "Hello, world!" 5
#)5Z8`X
>M\3tB2C
E
{$Jk]c
TScript 90oG+T4
? "Hello, world!" >i %{5d
ndn)}Z!0h
_h2axXFhT
Turing WKib$(%f6
put "Hello, world!" B\,pbOE?#
9@LL_r`?<
zU;%s<(p
UNIX-style shell %- W3F5NK
程序中的/bin/sh可改为您使用的shell "/e:V-W
z
%Ty;
#!/bin/sh /G`'9cD
echo 'Hello, world!' 3,2|8Q,((!
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=ILE/pC-|
GUI "&s9;_9
?8AchbK;N
Delphi diF-`~
program HelloWorld; UMN3.-4K#
uses n
7Mab
Dialogs; #d,+87]\=
begin ,iKL
68
ShowMessage('Hello, World!'); ]o18oY(
end. 8LI,'XZ
1PD{m{
t'e1r&^:r~
Nuva .tv'`
<. /gWaxR*m
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 6;WfsG5
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