“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。 D|]BFu)F
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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》。 al2t\Iq90
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以下是用不同语言写成的Hello World程序的几个例子: E+f)Zg
:
Ada ]Bhy=1
with Ada.Text_Io; use Ada.Text_Io; oBzl=N3<
procedure Hello is {/'T:n#
begin y0zMK4b
Put_Line ("Hello, world!"); +P/kfY"
end Hello; W(, j2pU
3/G^V'Yu
34@ [ZKJ5
汇编语言 8v4}h9*F"7
Sc)^k
x86 CPU,DOS,TASM >4:d)
MODEL SMALL J K
k0f9)
IDEAL &m5zd$6
STACK 100H ;_<R +w3-
uO?+vYAN
DATASEG )!T~l(g
HW DB 'Hello, world!$' ex3Qbr
*ByHTd
CODESEG *rxr:y#Ve
MOV AX, @data 5/meH[R\M
MOV DS, AX HA6tGZP*L
MOV DX, OFFSET HW i"8mrWb
MOV AH, 09H [>=!$>>;8
INT 21H rP@#_(22
MOV AX, 4C00H p>6`jr
INT 21H bO '\QtW9
END V%Uj\cv
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x86 CPU,GNU/Linux,NASM m,l/=M
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). O%bbyR2
;Enter this into "hello.asm" then type: F3tps
jQ
;"nasm -f elf hello.asm" gQ1obT"|
;"ld hello.o -o hello" SN{z)q
;"./hello" Cux(v8=n
8{ zX=
section .data ;data section declaration `Q]N]mK
msg db 'Hello World!',0AH &Y@i:O
len equ $-msg ;string length }X(&QZ7i`
+mQ5\14#
section .text ;code section declaration \2SbW7"/;P
global _start ;entry point (start of execution) m'4f'tbN
_start: mov edx,len ;string length rzjVUPdnh
mov ecx,msg ;string start c_lHj#A(l
mov ebx,1 ;file handle: stdout )>volP
mov eax,4 ;sys_write lj4Fg*/Yn
int 80h ;kernel system call Zt=|q$"
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mov ebx,0 ;return value P 7x;G5'.
mov eax,1 ;sys_exit 3h:j.8Z
int 80h ;kernel system call =ily=j"hK
20:F$d
IqOg{#sm
x86 CPU,Windows,MASM32 .sMs_ 5D
.386 s**<=M GK
.model flat,stdcall 36d nS>4
option casemap:none j\>LJai"
;Include 文件定义 .l}Ap7@
include windows.inc H4/wO
include user32.inc _|k$[^ln^
includelib user32.lib a#oROb-*~
include kernel32.inc -<iP$,bq72
includelib kernel32.lib @[GV0*yz$
;数据段 uuzV,q
.data .*O*@)}Ud
szCaption db 'A MessageBox!',0 L/3A g*
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szText db 'Hello,world!',0 .RD<]BxJ
;代码段
=c8}^3L~7
.code 7"(!]+BW!O
start: TBlSZZ-55]
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK k,h602(
invoke ExitProcess,NULL d{z[46>
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> jhu
&Wh
end start "c^! LV
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AWK ?h<4trYcv
BEGIN { print "Hello, world!" } @W,jy$U
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% rBzA<
BASIC 1S{Biqi+
传统版BASIC(例如GWBASIC): ofvR0yV
w.qtSW6M+
10 PRINT "Hello, world!" BN/4O?jD9
20 END C]^Ep
i'~-\F!
或在提示符输入: xR7ZqTcw
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?"Hello, world!":END Vl^(K_`(
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现代版BASIC(例如Quick BASIC): )^(*B6;z5
Zxk~X}K\P
Print "Hello, world!" ffKgVQux
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以下的语句在Quick BASIC中同样有效: | /.J{=E0K
5Qgu:)}
? "Hello,world!" 2"/MM2s
l#)X/(?;
cNll??j
BCPL `oRyw6Sko
GET "LIBHDR" 3?OQ-7,
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LET START () BE hpdI5
$( *k?:k78L
WRITES ("Hello, world!*N") E)b$;'
$) R2bq hSlF
bM W|:rn
F.s$Y+c!6
Befunge 2.qPMqH
"!dlrow olleH">v H MOIUd
, dSI"yz
^_@ zzmC[,u}
~ |G&cg
lg%fjBY
Brainfuck Vax g
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< !-I,Dh-A
+++++++++++++++.>.+++.------.--------.>+.>. DE13x*2
I8#2+$Be+@
e=amh
C t}t(fJHY`
#include <stdio.h> _~FfG!H ^X
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int main(void) I}$`gUXX8x
{ '|yx B')
printf("Hello, world!\n"); (P>nA3:UXB
return 0; *,u3Wm|7
} 2=cx`"a$
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C++ d3%qYL_+a
#include <iostream> Y,L`WeQY.
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int main() srS!X$cec
{ !Vpi1N\
std::cout << "Hello, world!" << std::endl; )k<cd.MX
return 0; U1`5P!ov
} J"gMm@#C4
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zCs34=3D[
C++/CLI HcRw9,I'
int main() dCx63rF`G
{ uYW4$6S3
System::Console::WriteLine("Hello, world!"); >`QBN1 Y
} l5z//E}W
_{|a<Keq|
hY}Q|-|
C# (C Sharp) M1jT+
class HelloWorldApp kD#T_d
{ VoCg,gow
public static void Main() 'h$:~C
{ }i9:k kfq2
System.Console.WriteLine("Hello, world!"); HwU9y
} E|pT6
} ]w *"KG!(
q@.>eB'92P
IIk_!VzT
COBOL jN6V`Wh_
IDENTIFICATION DIVISION. Lf_Y4a#
PROGRAM-ID. HELLO-WORLD. u%-]-:c
pl8b&bLzi
ENVIRONMENT DIVISION. ~cU1
/CW8
d+n2
c`i
DATA DIVISION. {lK2yi
<ZT
C^=3
PROCEDURE DIVISION. eP~bl
DISPLAY "Hello, world!". 4Kqo>|C
STOP RUN. ]($ \7+
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Common Lisp w4L()eP#?=
(format t "Hello world!~%") hcVu`B n
(bm^R-SbB
MqJTRBs%
DOS批处理 Zo UeLU
@echo off B*/!s7 c.
echo "Hello, world!" DG&'x;K"$
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}$oS/bo
Eiffel .!1[I{KU
class HELLO_WORLD 3f=ZNJ>
sY<UJlDKT
creation r8"2C#
make =gF035
feature 6R :hs C$
make is w!lk&7Q7Z
local zJXK:/
io:BASIC_IO 2poo@]M/
do }u#3 hYa
!!io Jp jHbG
io.put_string("%N Hello, world!") L|1,/h
8p
end -- make ,#;hI{E
end -- class HELLO_WORLD MkW=sD_
V 7,dx@J-
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Erlang !'_7MM
-module(hello). ~\=D@G,9
-export([hello_world/0]). 7U7!'xU
8#!g;`~ D
hello_world() -> io:fwrite("Hello, World!\n"). A%#M#hD/
sOqFEvzo1%
^i@anbH
Forth S(@kdL
." Hello, world!" CR =
#-zK:4
>5O~SF.
97Dq;
Fortran *VsGa<V
WRITE(*,10) ,X!) z Amm
10 FORMAT('Hello, World!') aiPm.h>
STOP B}[CU='P*
END =!-} q
ge`GQ>
'p5M|h\:T
HTML (IV\sY
<HTML> NL]_;\ h
<HEAD> K/9Jx(I,qL
<TITLE> Hello World! </TITLE> Cl'$*h
</HEAD> ]x)!Kd2>
<BODY> rC@VMe|0
<p>Hello World!</p> pZ8J\4+
</BODY> G:*vV#K
</HTML> OROvy
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9(t(sP_
HQ9+ ;6 @sC[
H HGAi2+&
s(py7{ ^K
Tdh(J",d
INTERCAL {|>'(iqH"w
PLEASE DO ,1 <- #13 +yI$4MY
DO ,1 SUB #1 <- #238 Muwlehuq
DO ,1 SUB #2 <- #112 C u`
DO ,1 SUB #3 <- #112 ![Qi+xyc
DO ,1 SUB #4 <- #0 xHt7/8wF
DO ,1 SUB #5 <- #64 4Q !A w
DO ,1 SUB #6 <- #238 m 3UK`~ji
DO ,1 SUB #7 <- #26 M|c_P)7ym
DO ,1 SUB #8 <- #248 uZ8-?
DO ,1 SUB #9 <- #168 -ED}
6E
DO ,1 SUB #10 <- #24 ypEMx'p
DO ,1 SUB #11 <- #16 k.C&6*l!5;
DO ,1 SUB #12 <- #158 }E ]l4N2
DO ,1 SUB #13 <- #52 #b/L~Bw[
PLEASE READ OUT ,1 dQT[pNp:
PLEASE GIVE UP pO *[~yq5
t+w{uwEY
aX1b(h2
Java (zFqb,P
public class Hello Mf14> `<`
{ wU|@fm"
public static void main(String[] args) #czTX%+9(e
{ A|LO!P,w
System.out.println("Hello, world!"); 3Ewdu
} O?g;Ny
} @%fTdneH
bN-!&Td
,K[e?(RP
JSP ,KJHY m=Q
<% ^mn!;nu
out.print("Hello, world!"); 0GxJja
%> )!v"(i.5Xo
\dJhDR
T; tY7;<
MIXAL N&
TERM EQU 19 the MIX console device number 7;|"1H:cmw
ORIG 1000 start address keC'/\e
START OUT MSG(TERM) output data at address MSG YzjRD:
HLT halt execution c #TY3Z|
MSG ALF "MIXAL" PS"rXaY
ALF " HELL" ?o[h$7`o6
ALF "O WOR" ^2}HF/
ALF "LD " Ho&:Zs
END START end of the program f2[R2sto@
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Nuva ="78#Wfj2
<..直接输出..> MO$yst?fK
Hello, world! }$z(?b
Eu' ;f_s
<..或者..> ]7}!3 m
~-Kx^3(#
<. 2b7-=/[6
// 不带换行 9;Z{++z
? "Hello, world!" 1q(Qr
h
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// 或者 #&T O(bk
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// 带换行 +r'&6Me!
?? 'Hello, world!' kf>3T@
.> 8OZasf
=q0V%h{
( 0/M?YQF
OCaml
i=\)[;U
let main () = QTBc_Z
print_endline "Hello world!";; VOD-<
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Awa| (]
nBp6uNK[
Pascal rwJU;wy
program Hello; l,l qhq\
begin \{`^Q+<
writeln('Hello, world!'); qK7:[\T|?T
end. .Pj<Pe
!O%!A<3
%:'G={G`QH
Perl yVnG+R&
#!/usr/local/bin/perl !*Is0``
print "Hello, world!\n"; MoN0w.V
lGr=I-=
pC:YT/J
PHP n[0u&m8
<?php ;>mM9^Jaf
print("Hello, world!"); (
jU $
?> Ic4#Tk20i
?Fx~_GT
hhaiHi!$
Pike ]?+i6 [6U
#!/usr/local/bin/pike =S{OzF
int main() :+DrV\)
{ SI~jM:S}
write("Hello, world!\n"); jbipNgxkr
return 0; vN^.MR+<
} V3ht:>c9qs
1v|-+p42
VA[EY`8
PL/I Hc'Pp{| X
Test: procedure options(main); @U8u6JNK'
declare My_String char(20) varying initialize('Hello, world!'); JWd[zJ[
put skip list(My_String); mq[=,,#
end Test; 0Qa0
Y[f]L4,V
-y|J_;EG
Prolog #?w07/~L
goal :wS&3:h
write("hello,world!"). .f J8
U4=l`{5on
\"(?k>]E
Python fY9+m}$S$
#!/usr/local/bin/python =(
|%%,3
print "Hello, world!" ]TT >3"Dw7
R ?iCJ5 m
`;Tf _6c
REXX P6.PjK!Ar
say "Hello, world!" zEFS\nP}E
{WV"]O8IV
%CHw+wT&
Ruby boEQI=!j\+
#!/usr/bin/ruby 12U]=
print "Hello, world!\n" -$<oY88
Y
M:9m)
x3cjyu<K
Scheme je^VJ&ac
(display "Hello, world!") G/p\MzDko
(newline) LH(P<k&
kMCP .D45;
aC[G_ACwc
sed (需要至少一行输入) Oq~{HJ{
sed -ne '1s/.*/Hello, world!/p' y!gPBkG&3n
`[5xncZ-
T;(,9>Qsu
Smalltalk V\zcv @
Transcript show: 'Hello, world!' UUDUda
Q,5PscE6&k
N 62;@Z\7
SNOBOL d]e36Dwk
OUTPUT = "Hello, world!" 'O)v@p "
END 2*V%S/cck
8_!qoW@B
?I^$35
SQL uuEvH<1
create table MESSAGE (TEXT char(15)); gGvL6Fu
insert into MESSAGE (TEXT) values ('Hello, world!'); qY8; k
#
select TEXT from MESSAGE; >KuNHuHu
drop table MESSAGE; #).^k-
^5]9B<i[Y
hx0 t!k(3
Tcl zgjgEhnvU
#!/usr/local/bin/tcl s U`#hL6;
puts "Hello, world!" .5;
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9ia&/BT7"z
J.XkdGQ
TScript ks.p)F>]
? "Hello, world!" _m?i$5
:epBd3f
YaS!YrpI
Turing |.Vgk8oTl
put "Hello, world!" 5/P. 4<c7
(9]1p;
$O\m~r4
UNIX-style shell ThX3@o
程序中的/bin/sh可改为您使用的shell 9ad)=3A&L
1oO(;--u_
#!/bin/sh ;U4O` pZ
echo 'Hello, world!' c\ZI
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X[?fU&
}Y7P2W+4?
GUI _qPKdGoM
]zj#X\
Delphi 1;~sNSTo
program HelloWorld; W^3 Jg2gE
uses \"ogQnmz
Dialogs; 0"e["q{|
begin p+iNi4y@
ShowMessage('Hello, World!'); t }4
end. b)IQa,enH
8g8eY pG
%TI3Eb
Nuva jX4$PfOhR
<. ^!^M Gzu
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Os[z>H?
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n#"G)+h3#
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Visual Basic &