“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。 P^ht$)Y
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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》。 P8#_E{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: PbY.8d%2/k
Ada $2Awp@j
with Ada.Text_Io; use Ada.Text_Io; 8#R%jjr%T
procedure Hello is G({5Lj gW
begin QkWEVL@uM
Put_Line ("Hello, world!"); fT{jD_Q+3
end Hello; ^Y!$WP
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oGyoU#z#
汇编语言 }8ESp3~e_
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x86 CPU,DOS,TASM 4uH}
SG[
MODEL SMALL RameaFX8
IDEAL Unansk
STACK 100H $m-C6xC/
C8i4z
DATASEG \),zDO+
HW DB 'Hello, world!$' ,<C~DSAyZ
\ KsKb0sM
CODESEG eA3NyL
MOV AX, @data Sj:c {jyJd
MOV DS, AX GY5JPl
MOV DX, OFFSET HW xOr"3;^
MOV AH, 09H O>I%O^
INT 21H +3M1^:
MOV AX, 4C00H ?v-!`J>EF#
INT 21H 1FG"Ak}D
END PN=5ICT
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x86 CPU,GNU/Linux,NASM g~(G P
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). &4%78K\
;Enter this into "hello.asm" then type: QxuU3#l
;"nasm -f elf hello.asm" \F\xZ.r
;"ld hello.o -o hello" Gm> =s
;"./hello" I~E&::,
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section .data ;data section declaration D><^ 7nr%
msg db 'Hello World!',0AH 6-\'
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len equ $-msg ;string length zGc]*R
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section .text ;code section declaration 4/_!F'j
global _start ;entry point (start of execution) 6JeAXj1g+
_start: mov edx,len ;string length qVO,sKQ{
mov ecx,msg ;string start 1bDAi2 H
mov ebx,1 ;file handle: stdout &LG|YvMY6
mov eax,4 ;sys_write eYn/F~5-
int 80h ;kernel system call XWX]/j2jA
*5 \'$;Rg
mov ebx,0 ;return value HX,i{aWWy
mov eax,1 ;sys_exit ~0o>B$xJ
int 80h ;kernel system call W6r3v)~
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x86 CPU,Windows,MASM32 qv>l
.386 Y4lN xvY
.model flat,stdcall eht>4)
option casemap:none snNB;hkj
;Include 文件定义 ;TK$?hrv*1
include windows.inc jK%Lewq
include user32.inc (dx~lMI
includelib user32.lib @k# xr
include kernel32.inc kY9$ M8b
includelib kernel32.lib
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;数据段 )nq(XM7
.data :22wq{
szCaption db 'A MessageBox!',0 U7e2NES
szText db 'Hello,world!',0 'Q=(1a11
;代码段 b/\l\\$-
.code 3<[q>7X
start: m( %PZ*s
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK (/9 erfuJ
invoke ExitProcess,NULL J/,m'wH
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ~BE=z:
end start :~ 	
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AWK B?e]
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BEGIN { print "Hello, world!" } r%>7n,+o
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BASIC ?(}~[
传统版BASIC(例如GWBASIC): h&!$ `)
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10 PRINT "Hello, world!"
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20 END !9.\A:G
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或在提示符输入: vIZFI
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?"Hello, world!":END 2^Z"4t4
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现代版BASIC(例如Quick BASIC): |TF6&$>d
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Print "Hello, world!" cFq2 6(e
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以下的语句在Quick BASIC中同样有效: H
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? "Hello,world!" Hq?dqg' %~
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RXu`DWN
BCPL dYlVJ_0Zr
GET "LIBHDR" <^942y-=
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R
LET START () BE 3;!!`R>e
$( MOi1+`kwh
WRITES ("Hello, world!*N") :2XX~|
$) sv#b5,>9
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Um*&S.y
Befunge VCIV*5
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"!dlrow olleH">v NQcg}y
, C0>L<*C
^_@ 23a:q{R
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Brainfuck ZqjLZ9?q
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< d7 :=axo,
+++++++++++++++.>.+++.------.--------.>+.>. ?V(+Cc
6!;D],,"#.
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C vWL|vR
#include <stdio.h> ZG~d<kM&8s
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int main(void) [81q 0@
{ [F{P0({%?
printf("Hello, world!\n"); e nw*[D !
return 0; g+(Y)9h&
} &^Gp
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cJM.Q_I}Y
C++ ]*Kv[%r07c
#include <iostream> Blj<|\igc
1xO-tIp/
int main() h2i1w^f
{ #)iPvV'
std::cout << "Hello, world!" << std::endl; jw0wR\1
return 0; sk3AwG;A
} 0JqvV
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C++/CLI
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int main() Z.s0ddMs
{ hf7[<I,jov
System::Console::WriteLine("Hello, world!"); +%K~HYN
} o*oFCR]j
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9w=[}<E
C# (C Sharp) k]2_vk^
class HelloWorldApp MN:LL
<
{ E Q:6R|L
public static void Main() 'q@vTM'-
{ rD9:4W`^
System.Console.WriteLine("Hello, world!"); |.-Muv
} ;krIuk-
} h
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iqN?'8
COBOL ^ohIJcI-
IDENTIFICATION DIVISION. c:
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PROGRAM-ID. HELLO-WORLD. #]Jg>
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ENVIRONMENT DIVISION. %8d]JQ
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DATA DIVISION. }XqC'z
dQO5
PROCEDURE DIVISION. U\-R'Z>M
DISPLAY "Hello, world!". rZ2cC#
STOP RUN. aP"!}*
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?},RN
Common Lisp n9R0f9:*
(format t "Hello world!~%") 8xkLfN|N=
U*go}dt"5
U"~W3vwJ
DOS批处理 KleiX7
@echo off T8yMaC
echo "Hello, world!" io@f5E+?
*.Z~f"SZy*
eo.B0NZsF
Eiffel ,zxv>8Nt
class HELLO_WORLD D_`NCnYG
:H+8E5
creation 1xSG(!
make #&%>kfeJ)<
feature i?7?I
make is K_!:oe7%
local 9}H]4"f7
io:BASIC_IO tf[)| /M
do 3Vak
C
!!io i4XiwjCHN
io.put_string("%N Hello, world!") ru4M=D
end -- make b`F]oQ_*
end -- class HELLO_WORLD pbw{EzM
{-%8RSK=<
z%\&n0
Erlang RaP,dR+P
-module(hello). %E"Z &_3{
-export([hello_world/0]). ;k,@^f8
? PpS4Rd
hello_world() -> io:fwrite("Hello, World!\n"). e*U6^Xex
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P+QL||>L
Forth syI|gANT/r
." Hello, world!" CR 'g3T'2"`5
V)vik
l[rK)PM
Fortran I0!]J{
WRITE(*,10) $g/h=w@
10 FORMAT('Hello, World!') ?nWzJ5w3
STOP 3xiDt?&H
END g(,^';j
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U.JE \/
HTML i83[':
<HTML> 4IvT}Us#+
<HEAD> n 8
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<TITLE> Hello World! </TITLE> nd7g8P9p
</HEAD> a,r
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<BODY> l@ (:Q!Sk
<p>Hello World!</p> .t/@d(R
</BODY> o?6m/Klw6
</HTML> M|fV7g
V Ew| N)
t[@>u'YKt
HQ9+ \O\q1
s~
H p@[ fZj
*ZxurbX#
}r!hm?e
INTERCAL 3dSC`K
PLEASE DO ,1 <- #13 P,F
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DO ,1 SUB #1 <- #238 -4P `:bF
DO ,1 SUB #2 <- #112 o{^`Y
DO ,1 SUB #3 <- #112 x*=1C,C
DO ,1 SUB #4 <- #0 * ^V?u
DO ,1 SUB #5 <- #64 5;,h8vW
DO ,1 SUB #6 <- #238 E+#<WK-
DO ,1 SUB #7 <- #26 k%Vprc
DO ,1 SUB #8 <- #248 S>S7\b'
DO ,1 SUB #9 <- #168 =O-irGms*
DO ,1 SUB #10 <- #24 9y<h.T
DO ,1 SUB #11 <- #16 -4zV
yW
S<
DO ,1 SUB #12 <- #158 L"n)fe$
DO ,1 SUB #13 <- #52 F=e-jKogK
PLEASE READ OUT ,1
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PLEASE GIVE UP h9#)Eo
z^z`{B
/,UnT(/k(
Java ]5Dh<QY&.
public class Hello -V;BkE76
{ Hmt2~>FI[
public static void main(String[] args) Ak8Y?#"wz
{ Ip:54
System.out.println("Hello, world!"); (<8}un
} c?u*,d) G
} RS
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M.r7^9 P
Kf*Dy:e
JSP ^$sqU
<% 6bLn8UT
out.print("Hello, world!"); 32j}ep.*
%> rNTLP
m
Dad$_%
0bT[05.
MIXAL KIag(!&
TERM EQU 19 the MIX console device number Wpi35JrC
ORIG 1000 start address ^_<|~
START OUT MSG(TERM) output data at address MSG o:fe`#t
HLT halt execution RAP-vVh/C
MSG ALF "MIXAL" CxZh^V8LP
ALF " HELL" nosD1sS.K8
ALF "O WOR" B4wRwrVI>
ALF "LD " x5mg<y2`Ng
END START end of the program nw0#gDI|
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Nuva (QJe-)0_y
<..直接输出..> ovBmo2W/
Hello, world! xLDD;Qm,
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<..或者..> r$}C<a[U
8W?dWj
<. ]z/R?SM
// 不带换行 "\KBF
? "Hello, world!" IA({RE
mbGma
// 或者 P(TBFu
+a1iZ bh
// 带换行 8.Y|I5l7G
?? 'Hello, world!' y!.jpF'uI
.> RZ xwr
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%0N
HU`j
OCaml W ';X4e
let main () = 6CIzT.
print_endline "Hello world!";; -p.\fvip
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DQm%=ON7
Pascal e)g&q'O
program Hello; VL$
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begin =4a:)g'
writeln('Hello, world!'); +8T^q,
end. v|o{AL:ei
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Perl h0@a"DqK
#!/usr/local/bin/perl %.<_+V#h
print "Hello, world!\n"; mV$ebFco0
m(6d3P
qul#)HI
PHP dkZe.pv$j
<?php >m,hna]RZ
print("Hello, world!"); e12QYoh
?> ,_I
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^hmV?a:Y
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f#D
Pike bIAE?D
#!/usr/local/bin/pike 0f.jW O
int main() <ak[`]
{ q!eE~O;A
write("Hello, world!\n"); dD=$$(
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return 0; a3tcLd|7J
} 89g
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PL/I 0lg$zi x(
Test: procedure options(main);
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declare My_String char(20) varying initialize('Hello, world!'); 2Jd(@DcJ2C
put skip list(My_String); u ;-&r'J>
end Test; Pc`d]*BYi
)Y7H@e\1
t?4H9~iH
Prolog ApXf<MAy
goal 'z(Y9%+a
write("hello,world!"). f
+{=##'0
'|[V}K5m/f
q"u, Tnc;
Python d-D,Gx]>$
#!/usr/local/bin/python yx :^*/
print "Hello, world!" fY[Fwjj3
(?7=,A7^
^w60AqR8
REXX HcsVq+
say "Hello, world!" L7-BuW}&
1
:p'
ew~Z/ A
Ruby oS fr5
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#!/usr/bin/ruby E1eGZ&&Gd
print "Hello, world!\n" CO='[1"_5
gEd A
hfx
tQ|c.`)W
Scheme olE(#}7V
(display "Hello, world!") u
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(newline) YsVmU
](w)e
p~;3
i6'=]f'{
sed (需要至少一行输入) /Sw~<B!8N
sed -ne '1s/.*/Hello, world!/p' EAGvP&~P
L,[Q/$S8
ny5P*yWEh
Smalltalk 1;ttwF>G7
Transcript show: 'Hello, world!' 9|1msg4
$r/$aq=K
im2mA8OH
SNOBOL #'_#t/u
OUTPUT = "Hello, world!" .|
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:r
END ,a?)O6?/
gjDNl/r/
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SQL k83K2>]
create table MESSAGE (TEXT char(15)); 'Qy6m'esW
insert into MESSAGE (TEXT) values ('Hello, world!'); j=l2\W#}
select TEXT from MESSAGE; |nefg0`rk
drop table MESSAGE; (,U|H`
0)ohab
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Tcl .<%tu 0
#!/usr/local/bin/tcl >G6kF!V
puts "Hello, world!" Qn*l,Z]US
-V/y~/]J
^k=<+*9
TScript I2[Z0G@&=
? "Hello, world!" v -}f
P
d @R7b^#g
E(~7NRRm
Turing 4&mY-N7A
put "Hello, world!" JbPkC*.
LZV- E=`
r1L@p[>
UNIX-style shell gNB+e5[; 2
程序中的/bin/sh可改为您使用的shell 8z`ZHn3=
qUJ"* )S
#!/bin/sh ;g0Q_F@;p
echo 'Hello, world!' Q,3kaR@O
wpK1nA+7N
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GUI |Ea%nghl
Bl b#h
Delphi f .O^R~,
program HelloWorld; Kb%Y%j
uses =XR~I
Dialogs; MB)<@.A0
begin @xWWN
ShowMessage('Hello, World!'); Bb/if:XS
end. ?'> .>
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&
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Nuva /~NX<Ye&
<. A6z,6v6
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK'])
d$$5&a
.> 4Zbn8GpC
{=GmXd%D
!Cr3>tA
Visual Basic
:^)?AO#J
MsgBox "Hello, world!" |+
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'或者 1#d2 +J*
Print "Hello, world!" /e2zH
\S;[7T
}yT/UlU
Visual FoxPro ]}L'jK
0
? "Hello, world!" w;O-ATUzN
cGlN*GJ*H
+#Pb@^6"m
X11 ##jJaSxG
用一个程序 k{ qxsNM
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I
xmessage 'Hello, world!' $s7U
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用C++和gtkmm 2 _.s,gX
^Q8yb*MN
#include <iostream> spa:5]B
#include <gtkmm/main.h> 6e ?xu8|
#include <gtkmm/button.h> ?|5M'o|9
#include <gtkmm/window.h> PPXwmR
using namespace std; 2.^{4 1:
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class HelloWorld : public Gtk::Window _lv{ 8vf1B
{ z*},N$2=
public: fpf]qQ
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HelloWorld(); YiZk|K_
virtual ~HelloWorld(); ?}?"m:=
protected: Mq0MtC6-
Gtk::Button m_button; ._rPM>B?
virtual void on_button_clicked(); '4'Z
}; 0|AgmW_7
.
yJ?=##
HelloWorld::HelloWorld() : m_button("Hello, world!") 1
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=
{ ?Bu*%+
set_border_width(10); +R*DE5dz
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); dj0%?g>
add(m_button); 9`f@"%h
m_button.show(); $FPq8$V
} (.#nl}fA
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HelloWorld::~HelloWorld() {} ys`-QlkB
fG0ZVV!
void HelloWorld::on_button_clicked() KdoI
{ ]aPf-O*
cout << "Hello, world!" << endl; do8[wej<:
} /r7xA}se^
?}Zo~]7E
int main (int argc, char *argv[]) # xO PF9
{ R'gd/.[e
Gtk::Main kit(argc, argv); if&bp ,
HelloWorld helloworld; +?)7l
Gtk::Main::run(helloworld); F3bTFFt
} V?EX`2S
;^N
lq3N
f-M:ap(O
Java $OZ= L
import java.awt.*; gAqK/9;
import java.awt.event.*; 63E6nW M
$#rkvG_w
public class HelloFrame extends Frame f\R_a/Us
{ PMsb"=Ds
HelloFrame(String title) !=YE hQ-
{ ?|ZbQz(bL
super(title); Ck/44Wfej
} GFFwk4n1
public void paint(Graphics g) 7^i7U-A<A
{ Mxl;Im]!`.
super.paint(g); |:C0_`M9
java.awt.Insets ins = this.getInsets(); h\!8*e;RAW
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); G' U_I
} ]$2 yV&V