“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。 k+f1sV[4}
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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》。 XRtyC4f
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以下是用不同语言写成的Hello World程序的几个例子: wG;}TxrLS
Ada :ao^/&HZ
with Ada.Text_Io; use Ada.Text_Io; 219R&[cb
procedure Hello is n}VbdxlN
begin %-\FVKX
Put_Line ("Hello, world!"); Y'2-yB
end Hello; loR,XW7z
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汇编语言 =obt"K%n
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x86 CPU,DOS,TASM 3,%nkW
MODEL SMALL U
7EHBW
IDEAL Bl=nj.g
STACK 100H ,n^TN{#
-e &$,R>;
DATASEG @;g`+:=
HW DB 'Hello, world!$' sE^ns\&QP=
23)F-.C}j
CODESEG E1^aAlVSD
MOV AX, @data (_s;aK
MOV DS, AX o*?[_{xW
MOV DX, OFFSET HW }Q,(u
MOV AH, 09H P_kaIPP
INT 21H -hQ96S8
MOV AX, 4C00H =_K%$y*
INT 21H IES41y<
END 8y-e+
*iPs4Es-
,:c:6Y^
x86 CPU,GNU/Linux,NASM gkSGRshf
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). -6AOK<kfI
;Enter this into "hello.asm" then type: 9cl{hdP{
;"nasm -f elf hello.asm" Z@<q/2).|
;"ld hello.o -o hello" }m9S(Wal
;"./hello" [t {vYo
])+Sc"g4k
section .data ;data section declaration H<v c\r
msg db 'Hello World!',0AH @=02
len equ $-msg ;string length yBr$ 0$
Q~x*bMb.
section .text ;code section declaration 37%`P\O;s
global _start ;entry point (start of execution) >|v=Ba6R0
_start: mov edx,len ;string length p
Z0=
mov ecx,msg ;string start t^`<*H
mov ebx,1 ;file handle: stdout Z'voCWCd
mov eax,4 ;sys_write 5Xp$yX =
int 80h ;kernel system call 9` OG
w g$D@E7
mov ebx,0 ;return value V;M3z9xd
mov eax,1 ;sys_exit N;e;4,_ n
int 80h ;kernel system call rdORNlK&
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pI'8>_o
x86 CPU,Windows,MASM32 ;5&k/CB1
.386 '=KuJ0`nE9
.model flat,stdcall Wpiv1GZ%c8
option casemap:none NvXj6U*%
;Include 文件定义 |U8>:DE l
include windows.inc OI)&vQ5k
include user32.inc ~5-~q0Ge
includelib user32.lib 43UJ#rF
include kernel32.inc }`+O$0A
includelib kernel32.lib {Bav$kw;?e
;数据段 8Uj68Jl?
.data rU/-Wq`B
szCaption db 'A MessageBox!',0 >qSO,$
szText db 'Hello,world!',0 S/#) :,YS
;代码段 .F{}~K]
.code f]@[4<N y
start: 9$B)hrJo
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK
?K= gg<
invoke ExitProcess,NULL A5 &>!y
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> `DU'wB
end start @c.11nfn`
*!-}lc^4
fJSV)\e0
AWK fS;m+ D!j@
BEGIN { print "Hello, world!" } avYh\xZ
e
B9m4
;XD>$t@
BASIC IqR[&T)lj
传统版BASIC(例如GWBASIC): :X1`wBu
xEd#~`Jmr
10 PRINT "Hello, world!" mI{CM:
:
20 END "B_5Y&pM`
Zq2H9^![y~
或在提示符输入: g7E`;&f
/NPl2\ o.
?"Hello, world!":END
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现代版BASIC(例如Quick BASIC): LbtlcpF*~5
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t9$~T
Print "Hello, world!" ]5qjK~,4b
brpN>\
以下的语句在Quick BASIC中同样有效: ":(Cpf0
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? "Hello,world!" q\{;_?a
!VJT"Ds_
g/n"N>L
BCPL tA;ZW2$#
GET "LIBHDR" bKZAJLnd
g%<{G/Tz
LET START () BE <uWJ>sg^6
$( Gc3PN
WRITES ("Hello, world!*N") P~b%;*m}8
$) }[hDg6i
DbPBgD>Q
AR[M8RA
Befunge
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"!dlrow olleH">v A61-AwvF8-
, *`\4j*$^
^_@ 0*]<RM
<9MQ
y7}~T!UyfF
Brainfuck
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++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< IAt+S-q0
+++++++++++++++.>.+++.------.--------.>+.>. N8/Au=De_
rsq'60
H7cRWB
C ] BP^.N=
#include <stdio.h> 2yVGEp^
| eVTxeq
int main(void) BhhK| U/
{ .[eSKtbc)
printf("Hello, world!\n"); CM@"lV_
return 0; 6P/9Vh j'
} k^vmRe<lk
5u=U--
1nX68fS.9
C++ r(/P||`l
#include <iostream> :u|UVp5
*SAcH_I2$>
int main() HjETinm"
{ J[_?>YJ
std::cout << "Hello, world!" << std::endl; 4=#QN
return 0; w-q=.RSTn=
} CsQ}P)
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\[hrG?A
C++/CLI #f jX|b
int main() F0o18k_"
{ Ov{B-zCA
System::Console::WriteLine("Hello, world!"); _tg3%X]
} k?@W/}Iv9
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C# (C Sharp) qkyX*_}
class HelloWorldApp L52z
{
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public static void Main() n
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{
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System.Console.WriteLine("Hello, world!"); jak|LOp
} 0$dY;,Q .
} 'rcsK
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5E!|on
COBOL a6K$omu
IDENTIFICATION DIVISION. &`9bGO
PROGRAM-ID. HELLO-WORLD. C J}4V!;|
=*O9)$b
ENVIRONMENT DIVISION. 70 DQ/b
j(2tbWg9-
DATA DIVISION. S3[oA&
L:]; [xa%
PROCEDURE DIVISION. sjgxx7
DISPLAY "Hello, world!". Q0oDl8~
STOP RUN. '\3.isTsx
DW;.R<8
l>Oe ,`9O
Common Lisp ;:K?7wfXn
(format t "Hello world!~%") MJk:s[o
HoQ(1e$G-
8B(Q7Qj
DOS批处理 m$e@<~To
@echo off boHm1hPKS
echo "Hello, world!" 8C4@V[sm`
OTr!?xi
085 ^!AZ
Eiffel m~\m"zJ4
class HELLO_WORLD #
v/aI*Rl
b9!J}hto,
creation [+5SEr}
make l'X?S(fiV
feature :r[-7
[/
make is Ql!6I (
local eXtF[0f
io:BASIC_IO ~s^6Q#Z9|
do iS^^Z ZyR
!!io (5\d[||9g
io.put_string("%N Hello, world!") 1 bx^Pt)
end -- make dXr
!_)i
end -- class HELLO_WORLD $[9V'K
` G/QJH{I
NhaeAD
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Erlang ]4pC\0c
-module(hello). Y K 62#;
-export([hello_world/0]). [;\<
2 =H
r4qV}-E
hello_world() -> io:fwrite("Hello, World!\n"). ^*T{-U'
Xv;ZA a
D_`)T;<Sp
Forth gbi~!S-
." Hello, world!" CR w[7HY@[
l=G#gKE
a}8>(jtSt
Fortran T"jDq1C/,E
WRITE(*,10) qv >(
10 FORMAT('Hello, World!') !!Gi.VL
STOP vnT
END G7#~=W
2M
xn#I7]]G
x[<#mt
HTML yvnrZ&x:
<HTML> Ib<+m%Ac
<HEAD> A&|(%
<TITLE> Hello World! </TITLE> m_W.r+s~C4
</HEAD> uTFEI.N
<BODY> [aVJYr2
<p>Hello World!</p> [75e\=wK
</BODY> '48|f`8$
</HTML> eh#
(}v
eT
\Q
olW`.3f
HQ9+ #hiDZ>nr
H %y~]3XWik
.ceU @^
Ptxc9~k
INTERCAL jT_Tx\k
PLEASE DO ,1 <- #13 yru}f;1
DO ,1 SUB #1 <- #238 n!,TBCNX
DO ,1 SUB #2 <- #112 v8M#%QoA
DO ,1 SUB #3 <- #112 m(Xr5hw:6
DO ,1 SUB #4 <- #0 rY+1s^F
DO ,1 SUB #5 <- #64 F973U
DO ,1 SUB #6 <- #238 {@`Uf;hPAX
DO ,1 SUB #7 <- #26 JN|#
DO ,1 SUB #8 <- #248 C)dYAq3,8
DO ,1 SUB #9 <- #168 ;&:Et
DO ,1 SUB #10 <- #24 H_^u_%:e
DO ,1 SUB #11 <- #16 6aK2{-+
DO ,1 SUB #12 <- #158 tWy<9TF
DO ,1 SUB #13 <- #52 'cCj@bZ9X
PLEASE READ OUT ,1 [WSIC *|;
PLEASE GIVE UP ]fmf X
Nv#, s_hG
i(#c
Yb
Java b-gVRf#F
public class Hello xVo)!83+Q
{ .EELR]`y7I
public static void main(String[] args) sX?7`n1U
{ Uv$u\D+@[
System.out.println("Hello, world!"); WM7/|.HQ
} +=xRr?F
} "+Yn;9
;'+cT.cmH
Z0@ImhejuB
JSP jiD8|%}v
<% )4C6+63OD&
out.print("Hello, world!"); "C|l3X'
%> b,sc
)}lV41u
'Z9F0l"Nr
MIXAL =&xoyF
TERM EQU 19 the MIX console device number x/^zNO\1
ORIG 1000 start address *a.*Ha
START OUT MSG(TERM) output data at address MSG LxDhthZi_
HLT halt execution )o,0aGo>Of
MSG ALF "MIXAL" D'+8]B
ALF " HELL" cW%O-
ALF "O WOR" (`*wiu+i
ALF "LD " }e @-[RJ!
END START end of the program 2geC3v% 0o
Hvk?(\x
{<n)zLy
Nuva MPc=cLv
<..直接输出..> bS6Yi)p
Hello, world! a^,RbV/
z#/*LP#oY
<..或者..> 8B9zo&
7mBL#T2
<. oPBjsQ
// 不带换行 >$F]Ss)$
? "Hello, world!" iHB)wC`u
DVH><3FF
// 或者 +.cv,1Vx
|SleSgS<#
// 带换行 i|GC 'XD@
?? 'Hello, world!' ARo5 Ss{
.> q"oNB-bz
]^<~[QK_C
W@=ilW3RD
OCaml tT:yvU@a
let main () = U @|_5[nl
print_endline "Hello world!";; .|-y+9IP
G.T1rUh=
!HYqM(|{.
Pascal xcA:Q`c.{
program Hello; D$;/
l}s?
begin >d\I*"C+d
writeln('Hello, world!'); PMcyQ2R->
end. !C?z$5g
\9^@,kfP
lla96\R
Perl "
cg>g/
#!/usr/local/bin/perl <ZEA&:p
print "Hello, world!\n"; AtI,&S#{
yW 3h_08
0b'R5I.M
PHP L8Q!6oO=<
<?php Y`uCDfcQ
print("Hello, world!"); (Bz(KyD[
?> J;dFmZOk
u!W00;`L
iqeGy&F-
Pike Ok!{2$P8U9
#!/usr/local/bin/pike &@+;]t
int main() )3
{ "5K:"m
write("Hello, world!\n"); ^da-R;o]
return 0; (n\
cs$
} ";]m]PRAam
QTH yH
?%(*bRV -
PL/I b8&9pLl
Test: procedure options(main); 6s;x@g]
declare My_String char(20) varying initialize('Hello, world!'); |(5=4j]
put skip list(My_String); <*P1Sd.
end Test; O/Vue
"/5b3^a
XJ9>a-{
Prolog 2Z~ofrj
goal gN%R-e0
write("hello,world!"). `Ec+i
MZ'HMYed
ZUycJ-[
Python [aC(Ga}
#!/usr/local/bin/python G)Y!aX
print "Hello, world!" Alz#zBGb
)<d8y Lb
S5JnJkNn
REXX K9R[
oB]b
say "Hello, world!" @Klj!2cv$
mwxJ#
5|Qr"c$p
Ruby xlAaIo)T
#!/usr/bin/ruby c1[;a>
print "Hello, world!\n" SW7%SX,xM
.kVga+la?
) =[Tgh
Scheme ?jbam!A
(display "Hello, world!") W2RS G~|
(newline) kVY@q&p
UWHC]V?
Hg4Ut/0
sed (需要至少一行输入) CJ_B.
sed -ne '1s/.*/Hello, world!/p' Z5Cv$bUc
W3b\LnUa
f[w$3
Smalltalk y4') !e
Transcript show: 'Hello, world!' IWkBq]Y
e(Verd:c
vjpe'zx
SNOBOL l< Y x
OUTPUT = "Hello, world!" J0IK=Y
END hY!G>d{J
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SQL [LCi,
create table MESSAGE (TEXT char(15)); m<E7cY3mX
insert into MESSAGE (TEXT) values ('Hello, world!'); kHO\#fF<
select TEXT from MESSAGE; IX}l)t[:(
drop table MESSAGE; 39"'Fz?1
f]Vz !hM~
N|DY)W
Tcl x{rt\OT
#!/usr/local/bin/tcl .#X0P=
puts "Hello, world!" HwHI$IB
)~6974
m5S/T\,X
TScript gI]Vyg<{d
? "Hello, world!" ~'ovJ46tx
XP'KgTF
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Turing HN:{rAIfc
put "Hello, world!" }~7>S5
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m2;%|QE(
UNIX-style shell Th8xh=F[
程序中的/bin/sh可改为您使用的shell /<mc~S7
?F-,4Ox{/
#!/bin/sh 1xw},y6T2
echo 'Hello, world!' Z1Ms~tch
:!%oQQO
X**wRF
GUI V#=N?p
T/H*Bo*=5
Delphi .m<-)Kx
program HelloWorld; BjA|H
uses !%Ak15o
Dialogs; IflpM ]
begin 7l?=$q>k"
ShowMessage('Hello, World!'); k=LY 6
end. HwDb &pP"
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Nuva 3}"VUS0wh
<. <Sz9: hg-
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Ss8`;>
.> 4EOu)#
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69_c,(M0
Visual Basic (vQShe\
MsgBox "Hello, world!" C. Sb4i*
'或者 ]|-y[iu
Print "Hello, world!" @gZ%>qe
a(m#GES
j#-74{Y$
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Visual FoxPro 7|{QAv
? "Hello, world!" }\1V;T
4-m}W;igu
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X11
"dA"N$
用一个程序 &oT]ycz%
tvd/Y|bV=
xmessage 'Hello, world!' *bR _
C"-
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用C++和gtkmm 2 W7.]V)$wM
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#include <iostream> h322^24-2
#include <gtkmm/main.h> il:+O08_
#include <gtkmm/button.h> _3)~{dQ+
#include <gtkmm/window.h> g
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using namespace std; +jHL==W&
U7{,
*
class HelloWorld : public Gtk::Window >:Rc%ILym
{ b+w|3bQa
public: #KiRH* giU
HelloWorld(); ^fRA$t
virtual ~HelloWorld(); AR&u9Y)I
protected: ^.k}YSWut
Gtk::Button m_button; Jr#ptf"Wu
virtual void on_button_clicked(); zhFGMF1
}; FQ );el'_V
f}o`3v*z
HelloWorld::HelloWorld() : m_button("Hello, world!") {Bu^%JEn
{ >ztv3^w
set_border_width(10); A H`6)v<f
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); /H}83 C
add(m_button); ).k=[@@V
m_button.show(); p`Ax)L\f
} `2GHB@S"k
2 &R-zG
HelloWorld::~HelloWorld() {} ;hRo}
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void HelloWorld::on_button_clicked() b8>rUGA{
{ *ozeoX'5D
cout << "Hello, world!" << endl; ZVeY`o(uE
} la
f b^
94H 6`
int main (int argc, char *argv[]) YrA#NTB_o
{ + -U7ogs
Gtk::Main kit(argc, argv); ^G=s<