“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。 r1q'+i
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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》。 %_n%-Qn
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以下是用不同语言写成的Hello World程序的几个例子: (ID%U
Ada -`ljKp
with Ada.Text_Io; use Ada.Text_Io; EyR/
procedure Hello is vg?(0Gasm*
begin 6{d?3Jk
Put_Line ("Hello, world!"); >4bw4
Z1
end Hello; X`<z5W] !
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汇编语言 ^%%Rf
"&XhMw4
x86 CPU,DOS,TASM Gfx!.[Y
MODEL SMALL \$Ky AWrZi
IDEAL DMA7eZf'Hv
STACK 100H %npLgCF
({Yfsf,
DATASEG OS%[SHs
HW DB 'Hello, world!$' 5fs,UH
k2loGvBJ
CODESEG F+VNrt-
MOV AX, @data DNDzK
iMk
MOV DS, AX VQf^ y q
MOV DX, OFFSET HW Uth+4Aq
MOV AH, 09H $C=XSuPNK
INT 21H c{`!$Z'k<
MOV AX, 4C00H ((AK7hb
INT 21H mGg/F&G9
END {88|J'*L
D',7 T=C
yS
K81`
x86 CPU,GNU/Linux,NASM `tO t+>YWn
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). @lM-+q(tl
;Enter this into "hello.asm" then type: B]hRYU
;"nasm -f elf hello.asm" r]}6iF.
;"ld hello.o -o hello" <%^WZ:c
;"./hello" <% mD#S
6;~V@t
section .data ;data section declaration B.?F^m@zS
msg db 'Hello World!',0AH vp&.
len equ $-msg ;string length <Ed; tq
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section .text ;code section declaration Q7`)&^
Hx
global _start ;entry point (start of execution) @)MG&X
_start: mov edx,len ;string length jB9~'>JY
mov ecx,msg ;string start &B:L9^
mov ebx,1 ;file handle: stdout [+5g 9tBJ
mov eax,4 ;sys_write lO9Ixhf~iu
int 80h ;kernel system call G]xYQ]
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mov ebx,0 ;return value ?$I9/r
mov eax,1 ;sys_exit t?^!OJ:L
int 80h ;kernel system call _"H\,7E
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x86 CPU,Windows,MASM32 TSJeS`I
.386 EGFP$nvq
.model flat,stdcall (VkO[5j
option casemap:none r1.zURY
;Include 文件定义 =>o !
include windows.inc 3GL?&(eU;
include user32.inc hb0)<^xu
includelib user32.lib O.Te"=^"F
include kernel32.inc 19% "F!^i
includelib kernel32.lib r4K_Wp
;数据段 V"gKk$j7
.data E>#@
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szCaption db 'A MessageBox!',0 S,|ZCl>+
szText db 'Hello,world!',0 J7dHD(R8
;代码段 ]p4?nT@]
.code S+Ia2O)BA
start: ^v5]Aq~X
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK :
maBec)
invoke ExitProcess,NULL n<)A5UB5-
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 39[ylR|\
end start 2ER_?y
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AWK LH`$<p2''r
BEGIN { print "Hello, world!" } a_\7Ho$^
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BASIC 7F2:'3SQ
传统版BASIC(例如GWBASIC): 3DCR n :
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10 PRINT "Hello, world!" 4!3<[J;N;
20 END ~kpa J'm
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或在提示符输入: 7c%dSs6
SMd[*9l
[
?"Hello, world!":END b{<$OVc
MkdC*|
现代版BASIC(例如Quick BASIC): 1NTx?JJfW
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Print "Hello, world!" l7<VH z0b
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以下的语句在Quick BASIC中同样有效: 2A*,9S|Y
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? "Hello,world!" >#;_Ebl@
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#;1RStb:zj
BCPL <JXHg,Q
GET "LIBHDR" Xmb##:
Jp8,s%
LET START () BE I@Yk &aU
$( _TJkYz$
WRITES ("Hello, world!*N") Z,-TMtM7
$) :vS/Lzk
SN7_^F
/r&4< @
Befunge -J'ked
"!dlrow olleH">v |Ul 4n@+2
, 8t7r^[T
^_@ ,DCUBD u&
KB^GC5L>
{~#01p5
Brainfuck
A;^{%S
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< _ Fk^lDI-
+++++++++++++++.>.+++.------.--------.>+.>. F7=\*U
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C 2>J;P C[;
#include <stdio.h> XfEp_.~JM
)\W}&9 >
int main(void) |<1A<fU8a
{ hr&UD| E=
printf("Hello, world!\n"); ,Cy&tRjR B
return 0; m<;MOS
} ulEtZ#O{_
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5YUe>P D
C++ Mx3f T>?
#include <iostream> U`{ M1@$
!af;5F
int main() {)kL7>u]^V
{ :a=]<_*x
std::cout << "Hello, world!" << std::endl; Ir-
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return 0; sP9{tk2K
} fkk9&QB%(
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XCez5Q1
C++/CLI Xz/aytp~A
int main() HR
{ IG%x(\V-e
System::Console::WriteLine("Hello, world!"); FELW?Q?k
} h-m0Ro?6
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b$*G&d5
C# (C Sharp) K)\D,5X^
class HelloWorldApp f?@M"p@T
{ ?f5||^7
public static void Main() <BdC#t:*L
{ '&]6(+I>
System.Console.WriteLine("Hello, world!"); ~jWpD7px
} ~PN[ #e]
} idS+&:'
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&Ci_wDJ
COBOL {-|El}.M
IDENTIFICATION DIVISION. l`:-B'WM
PROGRAM-ID. HELLO-WORLD. An
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pC&i!la{o}
ENVIRONMENT DIVISION. 4i29nq^n
,M\/[_:
DATA DIVISION. LG?b]'#
%7Gq#rq
PROCEDURE DIVISION. R^K:hKQ
DISPLAY "Hello, world!". UyMlk
STOP RUN. X`]>J5
tg ~7^(s
)_l(WF.
Common Lisp Ax4;[K\Q
(format t "Hello world!~%") `y1,VY
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b#S-u }1PE
DOS批处理 \qJ^n %
@echo off &';@CeK
echo "Hello, world!" ^w*vux|F
s21)*d
I%0J=V;o{
Eiffel #vR5a}BAk
class HELLO_WORLD Y~OyoNu2
L[:M[,?=`
creation .4=A:9
make DVBsRV)/
feature MR* %lZpB
make is (Q|Y*yI
local (B].ppBii
io:BASIC_IO H_%ae'W
do fa/p
!!io JNA_*3'
io.put_string("%N Hello, world!") Mi[,-8Sk
end -- make 7.
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end -- class HELLO_WORLD h{PJ4U{W
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Erlang t\ 9Y)d
-module(hello). d^|r#"o[
-export([hello_world/0]). 1| xKb(_l
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hello_world() -> io:fwrite("Hello, World!\n"). YgkQF0+
ksqb& ux6
w6l56CB`
Forth W6yz/{Rf
." Hello, world!" CR /
DST|2
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g^k=z:n3,
Fortran B=i%Z_r]w
WRITE(*,10) MV?sr[V-oP
10 FORMAT('Hello, World!') NV3oJ0f&2
STOP #@L<<Q8}
END uq]E^#^
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HTML H4e2#]*i7
<HTML> d 4;
<HEAD> 3,@|kN<
<TITLE> Hello World! </TITLE> Z^yn S
</HEAD> Dr#V^"Dte
<BODY> < 'r<MA<
<p>Hello World!</p> `$r?^|T
</BODY> PW-sF
</HTML> M3q7{w*bM
9Cw !<
95-%>?4
HQ9+ bj+foNvu\
H `Jl_'P}
StMvz~
6IL-S%EGK1
INTERCAL Q".p5(<
PLEASE DO ,1 <- #13 lp]q%P
DO ,1 SUB #1 <- #238 dcN4N5r
DO ,1 SUB #2 <- #112 Ns[.guWu-
DO ,1 SUB #3 <- #112 zm^5WH
DO ,1 SUB #4 <- #0 z%/<|`
7
DO ,1 SUB #5 <- #64 z-h7v5i"
DO ,1 SUB #6 <- #238
yc@:*Z
DO ,1 SUB #7 <- #26 ^|%7}=e
DO ,1 SUB #8 <- #248 ?*U:=|
DO ,1 SUB #9 <- #168 _dn*H-5hO
DO ,1 SUB #10 <- #24 EaN^<
DO ,1 SUB #11 <- #16 -k@Uo(MB
DO ,1 SUB #12 <- #158 ch0x*[N@
DO ,1 SUB #13 <- #52 /C[XC7^4'
PLEASE READ OUT ,1 ZF;s`K)
PLEASE GIVE UP (FNX>2Mv
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Java BKW%/y"
public class Hello 4yR X{Bl|
{
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public static void main(String[] args)
d>1#|
{ 4{ exv
System.out.println("Hello, world!"); ; HjT
} Y/34~lhyl
} \'Ca%j
>tV:QP]Y
78u=J z6
JSP -<q@0IYyi
<% $
4A!Y
out.print("Hello, world!"); {Gr"oO`&"
%> LwEc*79
T04&Tl'CT
3-
4jSN\
MIXAL Wi!$bL`l
TERM EQU 19 the MIX console device number .h;X5q1
ORIG 1000 start address <p8>"~R
START OUT MSG(TERM) output data at address MSG (I(k$g[>
HLT halt execution F#\+.inO
MSG ALF "MIXAL" AG,;1b,:81
ALF " HELL" \!'K#%]9
ALF "O WOR" dY]iAJ
ALF "LD " b]5S9^=LI
END START end of the program q|R$A8)L.
4S,/Z{ J.
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Nuva #'h(o/hz&&
<..直接输出..> %v1*D^))
Hello, world! [wjH;f>SQ
'3ZYoA%
<..或者..> >U')ICD~
cjBHczkY
<. F5f1j]c
// 不带换行 {]:B80I;2
? "Hello, world!" 0'tm.,
n(el
// 或者 /pnQKy.
zH?&FtO
// 带换行 ,DWC=:@X
?? 'Hello, world!' fm^)u"
.> mi{ r7.e5I
jh.e&6
1"HSM=p
OCaml v`u>;S_
let main () = %Z6\W;
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print_endline "Hello world!";; Zl`sY5{1
jTq@@y
Jl^THoEL
Pascal JB\BP$ap
program Hello; rwepe 5
begin FuZLE%gP
writeln('Hello, world!'); ( 0Z3Ksfj1
end. l j*J|%~
>dqeGM7Np>
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Perl ;Ajy54}7
#!/usr/local/bin/perl N&+DhKw
print "Hello, world!\n"; 7_ah1IEK
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xDBHnr}[
PHP z6Jfu:_N!
<?php
H!ISQ8{V
print("Hello, world!"); i3\6*$Ug
?> wPU<jAQyp
<S%kwS
>c:- ;( k
Pike f:K`MW
#!/usr/local/bin/pike w*s#=]6
int main() zE<G wVI~
{ db.E-@W.OI
write("Hello, world!\n"); s|=.L&"
return 0; rSfvHO:R
} lw"5p)aB
A4uDuB;;ZQ
,\RxKSU
PL/I E$84c+
Test: procedure options(main); /!Kl
declare My_String char(20) varying initialize('Hello, world!'); yD9<-B<)
put skip list(My_String); P&@[ j0
end Test; A?sU[b6_
PNMf5'@m
n/]$k4h
Prolog vVi))%&S(
goal g$ oe00b
write("hello,world!"). wUz)9n 6j
uua1_#a
j?n:"@!G/
Python ,o)U9<
#!/usr/local/bin/python #%i-{t+_>
print "Hello, world!" i\?P>:)
p;rGaLo:u
a,N?GxK~
REXX 2x*C1
say "Hello, world!" :Gz# 4k
1y5$
Soa5TM
Ruby 9v<Sng
#!/usr/bin/ruby | <ZkJR3B
print "Hello, world!\n" -cHX3UAEI
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9
O$=)
Scheme .1F^=C.w
(display "Hello, world!") Vhs:X~=qL
(newline) 61J01(+|
97um7n
Ng} AEAFp
sed (需要至少一行输入) zSiSZMP"
sed -ne '1s/.*/Hello, world!/p' =Jx,.|Bf
1=t\|Th-
ZkJYPXdn?
Smalltalk 9)qjW &`
Transcript show: 'Hello, world!' d6.9]V?
a,U =irBA
%8V/QimHU
SNOBOL 1+^L,-k!
OUTPUT = "Hello, world!" q_N8JQg
END !Fz9\|
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9R"bo*RIS
SQL <Zc:
create table MESSAGE (TEXT char(15)); /N
^%=G#
insert into MESSAGE (TEXT) values ('Hello, world!'); D n?P~%
select TEXT from MESSAGE; $W8
drop table MESSAGE; "]nbM}>
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F62arDA
Tcl S{NfU/:
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#!/usr/local/bin/tcl
U!-|.N,
puts "Hello, world!" 7 '@l?u/6
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9 0[gXj
TScript GGs3r;(t
? "Hello, world!" tp.qh]2c
'* +]&~b
wo[W1?|s
Turing k:w\4Oqd
put "Hello, world!" q*ZjOqj
{A(=phN
By@<N [I@
UNIX-style shell +mP3y~|-j
程序中的/bin/sh可改为您使用的shell BcT|TX+ct
1Ly?XNS
#!/bin/sh )G6]r$M>o0
echo 'Hello, world!' qfY.X&]PU
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Wv"[,5
Z13
GUI 'Z7oPq6
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Delphi VPf*>ph=
program HelloWorld; (o\:rLZu
uses '7W?VipU
Dialogs; fwI Zr~l
begin xnu|?;.}!
ShowMessage('Hello, World!'); +MQf2|--
end. A;h0BQm/j
I ,AI$A
3yXF|
yV
Nuva t9PS5O ;
<. ?#\?&uFJ}
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) SF;;4og
.> =? x A*_^
2&]UFg:8Q
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Visual Basic U$pHfNTH
MsgBox "Hello, world!" awXL}m[_!
'或者 =5LtEgHU
Print "Hello, world!" ;P _`4w3
/wCee G,<
?}B9=R$Pi
Visual FoxPro a7q-*%+d5
? "Hello, world!" +iwNM+K/gQ
2u6N';jgZ
DnaG$a<
X11 )j@k[}R#g
用一个程序 }{Lf 4|8
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xmessage 'Hello, world!' [/*854
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用C++和gtkmm 2 E+"INX7
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#include <iostream> bsPw Tp^
#include <gtkmm/main.h> 1(!QutEb
#include <gtkmm/button.h> [ WZ<d^L
#include <gtkmm/window.h> G_[|N>
using namespace std; C|W_j&S65
X?Omk, '
class HelloWorld : public Gtk::Window FWdSpaas Q
{ >9=Y(`
public: TRAs5I%
HelloWorld(); q?Q"Ab
virtual ~HelloWorld(); n\*>mp)
protected: *`);_EVc
Gtk::Button m_button; =X>3C"]
virtual void on_button_clicked(); +&a2aEXF
}; ygUvO3Z
0'|#Hi7@
HelloWorld::HelloWorld() : m_button("Hello, world!") :
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{ h.4;-&
set_border_width(10); oRy?Dx+H
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); & HphE2 h
add(m_button); c1CP12
m_button.show(); Z5-"a?{Y
} $}OU~d1q
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HelloWorld::~HelloWorld() {} f;pR8
~?-U
J^#
void HelloWorld::on_button_clicked() $1\<>sJH
{ \p@,+ -gX
cout << "Hello, world!" << endl; ahS*YeS7
} }PyAmh$@
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int main (int argc, char *argv[]) aiw~4ix
{ nf/iZ &
Gtk::Main kit(argc, argv); %nOBs ln
HelloWorld helloworld; 68)z`JI|<)
Gtk::Main::run(helloworld); KzeA+PI
} (LRv c!`"
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Java *
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