“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。 t3Qm-J}wSB
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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》。 Wu]/(F
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以下是用不同语言写成的Hello World程序的几个例子: \/X{n*Hw?
Ada 1wU=WE(kKZ
with Ada.Text_Io; use Ada.Text_Io; Q;Q
procedure Hello is 3[iSF5%V*p
begin o9~h%&
Put_Line ("Hello, world!"); `6n!$Cxo
end Hello; PGMv(}%;
% Mw' e/?
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汇编语言 e%'z=%(
vx PDC~3;
x86 CPU,DOS,TASM q!9^#c
MODEL SMALL @OBHAoz%/
IDEAL J]$er0`LY
STACK 100H {rtM%%l
x$*E\/zi<!
DATASEG K:Mujx:
HW DB 'Hello, world!$' ,uKs>T^
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CODESEG Q*,6X*W!~
MOV AX, @data u~
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MOV DS, AX ;K>{_kf
MOV DX, OFFSET HW )A"ZV[eOoQ
MOV AH, 09H J&n ^y
INT 21H 9$:QLE+t
MOV AX, 4C00H -MQZiq7H4
INT 21H @*bvMEE
END Zm`'MsgFr
C,9)V5!tP2
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x86 CPU,GNU/Linux,NASM Zj:a-=
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). $^!a`Xr
;Enter this into "hello.asm" then type: u'#`yTB6b
;"nasm -f elf hello.asm" &NlS =
;"ld hello.o -o hello" %H 8A=
;"./hello" |E"Xavi>
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section .data ;data section declaration E~rs11
msg db 'Hello World!',0AH cZCGnzy
len equ $-msg ;string length ( [K2:n\
*4r
s
section .text ;code section declaration 9k714bnMLX
global _start ;entry point (start of execution) 03PN{<
_start: mov edx,len ;string length ?"5~Wwp.T
mov ecx,msg ;string start }R7sj
mov ebx,1 ;file handle: stdout \.K\YAM<
mov eax,4 ;sys_write eL]{#WL
int 80h ;kernel system call BUcaj.S
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mov ebx,0 ;return value oV%(
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mov eax,1 ;sys_exit Gr`MGQ,
int 80h ;kernel system call ?Ry%c6(}
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x86 CPU,Windows,MASM32 6ctHL<^
.386 J-@o@!o
.model flat,stdcall ?/o2#iJx
option casemap:none {m?K2]](
;Include 文件定义 K> c8r8!
include windows.inc D[?k ,*
include user32.inc Vy?R/
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includelib user32.lib Bf D,z
include kernel32.inc \O8Y3|<
includelib kernel32.lib OqEg{o5 a&
;数据段 {^PO3I
.data 2LhfXBWf
szCaption db 'A MessageBox!',0 ZXFAuF
szText db 'Hello,world!',0 ~rVKQ-+4&
;代码段 &4w\6IR
.code # i`A4D
start: d,GtH)( s
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK GInZ53cQ
invoke ExitProcess,NULL *F26}q
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .g6PrhzFbk
end start hqhu^.}]
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T% /xti5$!
AWK >N+bU{s
BEGIN { print "Hello, world!" } -13P 2<i+
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BASIC 3p?<iVE
传统版BASIC(例如GWBASIC): fPh}l
F20wf1^
10 PRINT "Hello, world!" Q:-%3)g<<
20 END Dz"u8 f
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或在提示符输入: PV,kYM6
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?"Hello, world!":END ;~'cITL
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现代版BASIC(例如Quick BASIC): I,C AFq
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Print "Hello, world!" UX-_{I
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以下的语句在Quick BASIC中同样有效: 73^T*
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? "Hello,world!" F_p3:l
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BCPL .NzW@|
GET "LIBHDR" xN{"%>Mx
uu
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LET START () BE K$37}S5
$( O X5Co<u
WRITES ("Hello, world!*N") zAkc67:
$) IF36K^K
[5 Y$L
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Befunge KG4#BY&^
"!dlrow olleH">v g~ppPAH
, n,Yr!W:h
^_@ /P?|4D}<
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Brainfuck *x*,I,03
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< (.@p4q Q-
+++++++++++++++.>.+++.------.--------.>+.>. (_i
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C HX /GLnY/X
#include <stdio.h> N SxPN:
.%J?T5D
int main(void) xnRp/I
{ 4mM2C`I
printf("Hello, world!\n"); l~Ie#vak
return 0; 1{hoO<CJ
} 90y9~.v
p^4;fD
@qO8Jg"Q
C++ ]JqkC4|
#include <iostream> Bp$+ F/
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int main() XRz%KVysp
{ fbzKO^Ub
std::cout << "Hello, world!" << std::endl; UpszCY4
return 0; Hl3XqR
} j
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C\a:eSgaC
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C++/CLI k8x&aH
int main() d=4f`q0k
{ ~f]r>jQM
System::Console::WriteLine("Hello, world!"); syC"eH3{
} N[
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\: _.N8"
C# (C Sharp) Y#SmZ*zok
class HelloWorldApp ?2;n=&ZM
{ g~^{-6Vg
public static void Main() xvx\H'
{ eMm~7\
R
System.Console.WriteLine("Hello, world!"); Rbj+P;t&
} Kt4\&l-De
} CyK$XDHa
@7HOL-i
+/b4@B7
COBOL {YKMQI^O/
IDENTIFICATION DIVISION. \9|]
PROGRAM-ID. HELLO-WORLD. picP_1L
$*v 20
ENVIRONMENT DIVISION. &x0TnW"g
x@ s`;qz
DATA DIVISION. n6!Ihip$
\xO2WD
PROCEDURE DIVISION. X!+Mgh6
DISPLAY "Hello, world!". |B{$URu
STOP RUN. ,5A>:2 zs
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Common Lisp Lx:N!RDw
(format t "Hello world!~%") lPFdQ8M
(15Yw9Mv
J6["j
DOS批处理 jC Kt;lj
@echo off Rvz.ym:F
echo "Hello, world!" i[t=@^|
4 _U,-%/
I_6` Z 0
Eiffel `Z7ITvF>
class HELLO_WORLD )[M<72
R&=GB\`:a
creation mZ5K hPvf8
make AINFua4 A
feature @6!y(e8"J]
make is Y"/UYxCm|&
local JbC\l
io:BASIC_IO 6:EH5IO
do u<y\iZ[
!!io F;X q:e8
io.put_string("%N Hello, world!") xXU/m|
end -- make ~oW8GQ
end -- class HELLO_WORLD WGG)
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Erlang nog\,NT
-module(hello). i{FC1tVeL_
-export([hello_world/0]). + $a:X
Obc3^pV&
hello_world() -> io:fwrite("Hello, World!\n"). Ae_ E;[mj
2-E71-J
{O&liU4
Forth dYqDL<se/I
." Hello, world!" CR hL{B9?
][5p.owJse
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Fortran / ?[gB:s
WRITE(*,10) O+o%C*`K
10 FORMAT('Hello, World!') "g:&Ge*X
STOP zkMO3w>
END qp_ `Fj:
]o+|jgkt]
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HTML N
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<HTML> XsN#<"f;i
<HEAD> ccRk4xR
<TITLE> Hello World! </TITLE> 4%v+ark8
</HEAD> ,WDAcQ8\
<BODY> muX4 Y1M_
<p>Hello World!</p> 5WJkeG ba
</BODY> :kx#];2i
</HTML> 4b(irDT3F
Mjvso0zj
iCSM1W3
HQ9+ YTPmS\ H _
H Sd{"A0[A|
@"0N @gU
K<w5[E9V.
INTERCAL >hL'#;:f#
PLEASE DO ,1 <- #13 F Hcqu_;J
DO ,1 SUB #1 <- #238 ` dUiz5o'
DO ,1 SUB #2 <- #112 z57papo
DO ,1 SUB #3 <- #112 v8k^=A:
DO ,1 SUB #4 <- #0 *4^]?Y\*
DO ,1 SUB #5 <- #64 BG8)bhk;/
DO ,1 SUB #6 <- #238 0o=)&%G
DO ,1 SUB #7 <- #26 Z%9^6kdY
DO ,1 SUB #8 <- #248 dVt@D&
DO ,1 SUB #9 <- #168 +95dz?~
DO ,1 SUB #10 <- #24 %y7wF'_Y
DO ,1 SUB #11 <- #16 ft qW3VW
DO ,1 SUB #12 <- #158 R:R@sU
DO ,1 SUB #13 <- #52 s]%!
PLEASE READ OUT ,1 K ':pU1
PLEASE GIVE UP xAz4ZXj=q
~ kJpB t7M
wXZY5-h4
Java KC-aLq/
public class Hello kGq f@
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{ 4$2T zJE
public static void main(String[] args) !cq|g
{ Tc(v\|F,
System.out.println("Hello, world!"); M)pi)$&c
} BBJ]>lQ
} %` [`I>
+\oHQ=s>}\
molowPI
JSP uv!qE1z@':
<% ~S>ba']
out.print("Hello, world!"); .*f4e3
%> #R PB;#{
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wP':B
AQ4U
MIXAL S^VV^O5 ^
TERM EQU 19 the MIX console device number a[cH@7W.#
ORIG 1000 start address : 8<^rP
START OUT MSG(TERM) output data at address MSG X/7_mU>aKT
HLT halt execution 3M*[a~
MSG ALF "MIXAL" *K.7Zf0
ALF " HELL" [f(^vlK
ALF "O WOR" d>98 E9
ALF "LD " BF[?* b
END START end of the program :tG".z
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wXGFq3`
Nuva 1WN93SQ=
<..直接输出..> 8Xzx;-&4
Hello, world! y"-{6{3
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<..或者..> ,T~5iLKY
i4r~eneP
<. jeFl+K'1
// 不带换行 ]b| @<E7Y
? "Hello, world!" <d`UifqD
6i9I 4*'
// 或者 2^M+s\p
oP75|p
// 带换行 jtr=8OiL
?? 'Hello, world!' h1o+7
.> h#ot)m|I
E+Mdl*
$rYu4^
OCaml m8^2k2
let main () = H=RV M
print_endline "Hello world!";; =e/4Gs0*
L^s;kkB
8J1.(Mwb?
Pascal J*C*](
program Hello; ]LOtwY
begin }jgAV
writeln('Hello, world!'); aKtTx~$@
end. p&l:937
k $&A
B9:0|i!!A`
Perl |?=1tS{iT
#!/usr/local/bin/perl
"<h#Z(
print "Hello, world!\n"; N|vJrye
X}Z%@ tL
.Q)"F /
PHP K+OU~SED%F
<?php mXaUWgO
print("Hello, world!");
@+#p:sE
?> += ~}PF
HbDB?s<
,!4_Uc
Pike 5c7a\J9>
#!/usr/local/bin/pike 6Ymk8.PF
int main() #[yl;1)
{ &>fd:16
write("Hello, world!\n"); e"/X*xA
return 0; rep"xV&|>o
} w! 7/;VJ3d
dS=,. }
|c/rHEZ
PL/I LXV6Ew5E
Test: procedure options(main); =ApT#*D)o
declare My_String char(20) varying initialize('Hello, world!'); *60)Vo.=
put skip list(My_String); y-#tU>P
end Test; gNQJ:!
}!Lr!eALr
9ksrr{tW
Prolog lM,:c.R
goal x&Rp
m<4
write("hello,world!").
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;f~'7RKy!G
%TgM-F,8
Python 9Bw"VN]W
#!/usr/local/bin/python _Z2)e*(
print "Hello, world!" ?3N86Qj
Sn&%epi
Y|nTc.A
REXX eqCB2u"Jq
say "Hello, world!" R"([Y#>m
}2oJ
_0E,@[
Ruby Bx>@HU
#!/usr/bin/ruby Z Uv_u6aD
print "Hello, world!\n" 6^Vf 5W{
R&xd
ic!
gXMkI$ab
Scheme [?*^&[
(display "Hello, world!") mJ7kOQ-.$
(newline) B=`!
mH .I!
+8I0.,'
sed (需要至少一行输入) }3lF;k(2g
sed -ne '1s/.*/Hello, world!/p' 69yyVu_
92Iv'(1ba
"O
"@HVF@
Smalltalk -',Y;0b%
Transcript show: 'Hello, world!' h %S#+t(Bf
-wRzMT19MG
6suc:rp";
SNOBOL 7Y:s6 R|
OUTPUT = "Hello, world!" N> Y3[G+
END PQr
N";+
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k`U,
SQL FG\?_G
create table MESSAGE (TEXT char(15)); %xz02$k
insert into MESSAGE (TEXT) values ('Hello, world!'); sNVD"M,
select TEXT from MESSAGE; h+@t8Q;gGw
drop table MESSAGE; \gpKQt0
|\t_I~de
0=&]!WRT
Tcl _Ar,]v
#!/usr/local/bin/tcl ;@hP*7Lm
puts "Hello, world!" r1]^#&V;MC
H'.eqZM
w"|c;E1;_
TScript >0oc=9H8
? "Hello, world!" [^f`D%8o
f *vziC<m
p?@D'
Turing GkFNLM5'
put "Hello, world!" vcHDFi
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K<tg+(3
UNIX-style shell JnDR(s4(E
程序中的/bin/sh可改为您使用的shell add-]2`
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#!/bin/sh /o2eKx
echo 'Hello, world!' ."O(Ig[
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GUI R?Qou!*]
Kw|`y %~
Delphi ZlzFmNe60
program HelloWorld; { L5m`-x
uses ~-/AKaK}
Dialogs; m/AN*`V
begin O{V"'o
ShowMessage('Hello, World!'); /2@@v|QL
end. PdZSXP4;k
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Nuva x&d<IU)5
<. Jo@9f(hq
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) X(\RA.64
.> 5Fl|=G+3@g
C#R9Hlb
hCgNS1%4
Visual Basic .^23qCs
MsgBox "Hello, world!" AdNsY/ Y(
'或者
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Print "Hello, world!" pif gt
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h!
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Visual FoxPro q'q{M-U<
? "Hello, world!" 5cU8GgN`
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.(-3L9T}
X11 Sy_M!`B
用一个程序 .z"[z^/uF
T"jl;,gr]J
xmessage 'Hello, world!' LFC k6 R
>+r2I%
用C++和gtkmm 2 6FE[snw
tdm /U
#include <iostream> VbjFQ@[l!
#include <gtkmm/main.h> M<nn+vy`
#include <gtkmm/button.h> ~xCy(dL^}
#include <gtkmm/window.h> fu/c)D6u*m
using namespace std; w#XJ!f6*_9
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