“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。 %{!*)V\
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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》。 dGt;t5AnV
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以下是用不同语言写成的Hello World程序的几个例子: G#t!{Q}8
Ada Rb
Jl;
with Ada.Text_Io; use Ada.Text_Io; oS 7 q#`
procedure Hello is 0j %s
H
begin dZFf/BXU
Put_Line ("Hello, world!"); qZ'&zB)
end Hello; c~3OK_k
2.{:PM4Z4
|Gx-c
,{{
汇编语言 0k>bsn/j
QFY1@2EC
x86 CPU,DOS,TASM F" FGPk
MODEL SMALL tV%:sk^d
IDEAL wb~#=6Y
STACK 100H l ~CYxO
yw `w6Z3K
DATASEG X`/8fag
HW DB 'Hello, world!$' [G>8N5@*
wwE`YY
CODESEG ~OD}`
MOV AX, @data V|e9G,z~A
MOV DS, AX VI:
!#
MOV DX, OFFSET HW }enm#0Ha
MOV AH, 09H PN:/lIO
INT 21H hm*1w6 =
MOV AX, 4C00H )D\!#<#h
INT 21H (S$ziV
END rV*9=
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2
x86 CPU,GNU/Linux,NASM u&z5)iU
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 2kzm(K
;Enter this into "hello.asm" then type: s_S[iW`l=
;"nasm -f elf hello.asm" Vr@I9W;D#
;"ld hello.o -o hello" piIj
t
;"./hello" VRQ'sn@
:c[iS~ ~Y
section .data ;data section declaration \CNv,HUm3
msg db 'Hello World!',0AH _^]2??V
len equ $-msg ;string length '=C)Hj[D
c}v>Mx
section .text ;code section declaration ! eXDN
global _start ;entry point (start of execution) _Cn[|E
_start: mov edx,len ;string length luXcr
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mov ecx,msg ;string start 0`VA}c
mov ebx,1 ;file handle: stdout Mhp6,JL
mov eax,4 ;sys_write 3]"RaI4Q0
int 80h ;kernel system call 1ml>
*;@V5[^3I?
mov ebx,0 ;return value +NWhvs
mov eax,1 ;sys_exit '0|0rwx
int 80h ;kernel system call z/Z
0cM#
3}*)EC
8 :B(}Y4K
x86 CPU,Windows,MASM32 *{[jO&&J
.386 Hj\>&vMf
.model flat,stdcall KnK8\p88\
option casemap:none kEiWE|
;Include 文件定义 uflRW+-2
include windows.inc Mtxn@m{i;"
include user32.inc x.W93e[]H
includelib user32.lib ;U$Fz~rJ
include kernel32.inc 4+46z|
includelib kernel32.lib n1n->l*HGP
;数据段 s\&qvL1D
.data }\Kki
szCaption db 'A MessageBox!',0 <4UF/G)
szText db 'Hello,world!',0 H{qQ8j)
;代码段 is`O,Met
.code N~Zcrt_D
start: R8ZI}C1
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK rUgTJx&ds
invoke ExitProcess,NULL T7+_/
Qh
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> t$+[(}@+
end start Z
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bz$)@gLc
AWK N;N,5rxV
BEGIN { print "Hello, world!" } Eci,];S7
(NB\wJg
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G_OLUuK?C
BASIC mtfEK3?2*
传统版BASIC(例如GWBASIC): U&x)Q
^q{=mf`
10 PRINT "Hello, world!" KlOL5"3
20 END Sy\ec{$+V]
o&-c5X4
或在提示符输入: hHXTSk2
(.D|%P
?"Hello, world!":END 1:{BC2P
=6Z$nc
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现代版BASIC(例如Quick BASIC): #>)OLKP
N-C=O
Print "Hello, world!" lHl1Ny\?
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以下的语句在Quick BASIC中同样有效: Xh'_Vx{.j`
xi3
? "Hello,world!" nG Bjxhl
tUzef
R8"qDj
BCPL H!6nIS9yxt
GET "LIBHDR" V'n4iM
~#
~XDcc
LET START () BE (Qf"|3R4
$( d9bc>5%-F
WRITES ("Hello, world!*N") {[W [S@+
$) cHr.7 w
uPZ<hG#K
78o>UWA:
Befunge Fkq;Q
"!dlrow olleH">v 0{0A,;b
, 6KpG,%2L#
^_@ b`%(.&
22`N(_
w]-,X`
Brainfuck H<YhO&D*u
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Ic!8$NhRS
+++++++++++++++.>.+++.------.--------.>+.>. L"Vi:zdp
T1Gy_ G/
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C ;giW
#include <stdio.h> e/S^Rx4W
I{rW+<)QGC
int main(void) ^TWMYF-
{ )cF1?2
printf("Hello, world!\n"); 7"|j.Yq$H{
return 0; 7E4Xvg+c
} HW,2x} [
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o>G^)aRa
C++ /C: rr_4=
#include <iostream> ?A]@$
>R&=mo~
int main() Z{#;my*X|
{ QAI!/bB
std::cout << "Hello, world!" << std::endl; vbn'CY]QU
return 0; ~-dL #;
} sPKyg
u=mJI*
Z,x9 {
C++/CLI
fa=OeuI
int main() %b)~K|NEFf
{ }3rWmo8V
System::Console::WriteLine("Hello, world!"); %\uEV
} O7KR~d
c"<bq}L7S
N=?! ~n9Q-
C# (C Sharp) "?[7oI}c&
class HelloWorldApp $hCPmiI
{ >WKlR` J%
public static void Main() ,pc\
)HR
{ BUp,bJpO
System.Console.WriteLine("Hello, world!"); @['4 X1pqt
} }'o[6#_*X
} hhZUE]
o{QU?H5h
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W$
COBOL 02_37!\
IDENTIFICATION DIVISION. uI'g]18Hi
PROGRAM-ID. HELLO-WORLD. Dq~PxcnI
dE[_]2];P
ENVIRONMENT DIVISION. m{ya%F
Gkfc@[Z V
DATA DIVISION. .W9/*cZV0
cdH Ug#
PROCEDURE DIVISION. ~w>Z !RuhT
DISPLAY "Hello, world!". Ob|[/NN
STOP RUN. l:Y$A$W]>
[;]@PKW?w
1.5lJ:[G
Common Lisp '
YONRha
(format t "Hello world!~%") S dI/
N]p|c3D
<;?&<qMo,P
DOS批处理 aD5G0d?u
@echo off N%2UL&w#B
echo "Hello, world!" Ya_4[vR<
/_,} o7@t~
_z3Hl?qk=
Eiffel te+5@k#t
class HELLO_WORLD gUrb\X
a%wK[yVp
creation {]a 6o[}u
make h0N*hx
feature jJ' LM>e
make is ,0~/ Cn
local M~G1ZB
io:BASIC_IO rLzYkZ
do >QusXD"L>
!!io )~](qLSl
io.put_string("%N Hello, world!") ^1%gQ@P
end -- make M?UlC
end -- class HELLO_WORLD p2=Sbb
1qs~[7{C1
UJ0Dy` f
Erlang Qbc62 qFu!
-module(hello). L-ZJ[#D
-export([hello_world/0]). o6} +5
0shNwV1zF
hello_world() -> io:fwrite("Hello, World!\n"). wFW2m
J)l]<##
`P `nqn
Forth :*2+t-
." Hello, world!" CR l;e&p${P
lRn6Zh
v!;E1
Fortran Y=gj{]4
WRITE(*,10) ]c8$%
10 FORMAT('Hello, World!') n9zS'VU
STOP 6g ,U+~
END $Xlyc.8YId
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GXEOgf#i
HTML /WDz;,X
<HTML> AJ;Y Nb
<HEAD> Y[Gw<1F_
<TITLE> Hello World! </TITLE> RRD\V3C84
</HEAD> lA4Bq
<BODY> NLJD}{8Ot
<p>Hello World!</p> n7vLw7
</BODY> u1 uu_*
</HTML> Bx&.Tj
g~L1e5C]z
zXB]Bf3TH
HQ9+ '_n{+eR74
H ;y#6Nx,:
Ih}I`wY-
mI=^7'Mk
INTERCAL Zq|oj^
PLEASE DO ,1 <- #13 yaf&SR@7k{
DO ,1 SUB #1 <- #238 @1#$
DO ,1 SUB #2 <- #112 *JG?^G"l
DO ,1 SUB #3 <- #112 6e@
O88=
DO ,1 SUB #4 <- #0 AJrwl^lm
DO ,1 SUB #5 <- #64 cU25]V^{\
DO ,1 SUB #6 <- #238 5 TD"
DO ,1 SUB #7 <- #26 lLHHuQpuj
DO ,1 SUB #8 <- #248 -Uz
xs5Zl
DO ,1 SUB #9 <- #168 1K'0ajl1A
DO ,1 SUB #10 <- #24 q{UP_6OF
DO ,1 SUB #11 <- #16 %PG::b
DO ,1 SUB #12 <- #158 R]%ZqT{PS
DO ,1 SUB #13 <- #52 h2Ifq!(:
PLEASE READ OUT ,1 oHmU|
PLEASE GIVE UP x8T5aS
/KEPPp
Tk-PCra
Java ?lb1K'(
public class Hello do{#y*B/g!
{ nzDS
public static void main(String[] args) I~S`'()J
{ 6|#^4D)
System.out.println("Hello, world!"); f8! PeQ?
} l;L&ijTQD
} @A6\v+ih
(Jfi 3 m
+1p>:cih
JSP 0D>~uNcT}
<% }H{{ @RU
out.print("Hello, world!"); ?B %y)K
%> 8\8uXOS
vi0% jsI
u+s#Fee I
MIXAL XJ]MPiXj
TERM EQU 19 the MIX console device number >b-rAO\{}
ORIG 1000 start address ?ZSG4La\
START OUT MSG(TERM) output data at address MSG &a8#qv"l
HLT halt execution I
TJ>[c]x
MSG ALF "MIXAL" @yaBtZUp3
ALF " HELL" +[r%y,k
ALF "O WOR" tGzYO/Zp
ALF "LD " }i/&m&VU
END START end of the program F|V_iC+
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w\_NrsO!x
Nuva 0|{U"\
<..直接输出..> ]t1)8v2w>
Hello, world! `q e L$`
W.\HfJ74
<..或者..> i#1T68y}
Qd!;CoOmZs
<. 44?5]C7
// 不带换行 $X9Ban]
? "Hello, world!" (k
M\R|
Xr M[8a
// 或者 v%&f00
C3 0b}2
// 带换行 i TD}gC
?? 'Hello, world!' "JVzv U]
.> D +)6#i
Y
S:vv*5
)X\.Xr-6q
OCaml 5DyN=[b
let main () = c ~YD|l
print_endline "Hello world!";; ^V_acAuS^
v! @/
ItKwB+my
Pascal N jq#@*>[p
program Hello; 2O9dU 5b
begin ACl:~7;
writeln('Hello, world!'); \\hZlCV,
end. M)EKS
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z}C#+VhQ`
Perl N,'JQch},8
#!/usr/local/bin/perl (L|SE4
print "Hello, world!\n"; [X^JV/R
h%+8}uywZ
=]xNpX)
PHP .1I];Cy0D
<?php :`3b|u=KZ
print("Hello, world!"); }jiqUBn%
?> ADv
a@P
lbg6n:@
7@EYF
Pike ![abDT5![
#!/usr/local/bin/pike
{yt]7^
int main() gSR&CnqZ<
{ dhK$XG
write("Hello, world!\n"); AV d
return 0; @dCu]0oNI
} ^#3$C?d
TWx<)
YXIDqTA+
PL/I ^ ?tAt3dMI
Test: procedure options(main); mkE*.I0=
declare My_String char(20) varying initialize('Hello, world!');
XN=<s;U
put skip list(My_String); 5\=9&{WjND
end Test; ts?b[v
,C&h~uRi#f
6^{ hY^Z
Prolog }%k"qW<Y
goal <u2*(BM4
write("hello,world!"). fy_'K}i3k
]; ^OY\,
#(aROTV5a
Python
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#!/usr/local/bin/python 5)$U<^uy
print "Hello, world!" /=e[(5X|O
M5ZWcD.1
q`$QroZT"
REXX xo@N~
say "Hello, world!" %m+MEh"b5
)7j"OE
E 3I'3
Ruby n;Iey[7_E`
#!/usr/bin/ruby P< WD_W
print "Hello, world!\n" G~B
V^
>P0AGZ
_a<PUdP
Scheme /0o 2
(display "Hello, world!") Plq[Ml9
(newline) &-b=gnT
-|)[s[T~m
uqQMS&;+,|
sed (需要至少一行输入) JyB>,t)
sed -ne '1s/.*/Hello, world!/p' Uw&+zJ
<q[*kr
!zJ.rYZ=g`
Smalltalk ~-:CN(U
Transcript show: 'Hello, world!' rM=Hd/ki5
{eZj[*P
)<^ ~${$U
SNOBOL ok6e=c '
OUTPUT = "Hello, world!" :T{or-
END ~ml\|
FwW%@Y
\pzvoj7{
SQL %BG5[XQ7
create table MESSAGE (TEXT char(15)); _-!6@^+
insert into MESSAGE (TEXT) values ('Hello, world!'); CIaabn
select TEXT from MESSAGE; 6wu/6DO
drop table MESSAGE; 2~`dV_
,o}[q92@w
Y4714
Tcl ;XtDz
#!/usr/local/bin/tcl ]cA~%$c89s
puts "Hello, world!" I9Sh~vTm=u
h{JVq72R
% qE#^ U
TScript ?x[>g!r
? "Hello, world!" kW:!$MX!
C,<TAm
_:K}DU'6
Turing jU#%@d6!#
put "Hello, world!" nb|MHt PX
`nM4kt7
hy]AH)?pR
UNIX-style shell fZ376Z:S$
程序中的/bin/sh可改为您使用的shell KJ#c(yb9zR
8n:D#`K
#!/bin/sh 5Y&@
:Y
echo 'Hello, world!' l|fd,
*FE<'+%
[ho'Pc3A<
GUI XM 7zA^-
WcJ{}V9
Delphi p{,fWk
program HelloWorld; /<2_K4(-{4
uses 0iB1_)~
Dialogs; tQ|I$5jNJ
begin Y~:7l5C
ShowMessage('Hello, World!'); e5/_Vga
end. n^%u9H
A+l"
s-ou ;S3s
Nuva A^Zs?<C-
<. &p%c tg
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 'oEmbk8Hg
.> $+);!?^|:
>@%!r
x('yBf
Visual Basic (j/O=$mJ
MsgBox "Hello, world!" <@=NDUI3*,
'或者 C;ye%&g>
Print "Hello, world!" W9D)QIqbvW
lm\u(3_$
+vnaEy
Visual FoxPro 2uHp %fv;
? "Hello, world!" QezK&iJg
i*tj@5MY-
] QEw\4M?=
X11 Cnr48ukq
用一个程序 PA/6l"-`3
f1{ckHAY55
xmessage 'Hello, world!' S=2,jPX2r
3YRzBf:h
用C++和gtkmm 2 8HOmWQS
neBkwXF!
#include <iostream> 'yNp J'
#include <gtkmm/main.h> ep!.kA=\
#include <gtkmm/button.h> 3{l"E(qqZ
#include <gtkmm/window.h> >gE_?%a[
using namespace std; 1:t>}[Y
'FhnSNT(4=
class HelloWorld : public Gtk::Window WKf~K4BL>
{ 4l*&3Ar
public: 7`}z7nk
HelloWorld(); K0\WN"ua;
virtual ~HelloWorld(); _biJch
protected: ;k8}D*?8
Gtk::Button m_button; 1#(1Bs6X
virtual void on_button_clicked(); S(6ZX>wv:
}; z#4g,)ZX
>`:+d'Jv0
HelloWorld::HelloWorld() : m_button("Hello, world!") dc)Gk
{ _+En%p.m
set_border_width(10); )R4<*
/C:w
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); :m\KQ1sq
add(m_button); u_BSWhiW
m_button.show(); [XXN0+ /
} W<Lrfo&=Y]
g$b*#
HelloWorld::~HelloWorld() {} .IXwa,
y#+o*(=fRE
void HelloWorld::on_button_clicked() 4_<Uk
{ * 5n:+Tw(
cout << "Hello, world!" << endl; J%)2,szn0
} w%;'uN_
5[_8N{QC;
int main (int argc, char *argv[]) l5FQ!>IM
{ umzYJ>2t
Gtk::Main kit(argc, argv); Pcs@`&}7r
HelloWorld helloworld; Q-v[O4y~
Gtk::Main::run(helloworld); ~|rkt`8p
} :3f2^(b~^
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