“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。 e4.&aIC[
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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》。 xm^95}80yh
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以下是用不同语言写成的Hello World程序的几个例子: +hH}h?K
Ada I;j3*lV_
with Ada.Text_Io; use Ada.Text_Io; j Z'&0x"U
procedure Hello is e@jfIF0=}
begin l{%a&/
Put_Line ("Hello, world!"); :p-Y7CSSu
end Hello; <t}? $1
] !Zty[
h4 vm{ho
汇编语言 fNoR\5}!
i6>R qP!69
x86 CPU,DOS,TASM 2k+16/T
MODEL SMALL rYGRz#:~+
IDEAL `-O=>U5nH
STACK 100H >L[lV_M_>
y Nva1I
DATASEG t)I0lnbs
HW DB 'Hello, world!$' kxo.v |)8
KXe
ka
CODESEG n`<U"$*
MOV AX, @data e&3#2_
MOV DS, AX @ER1zKK?
MOV DX, OFFSET HW ~zyQ('
MOV AH, 09H
cht
INT 21H Gvn : c/m;
MOV AX, 4C00H v@_in(dk
INT 21H }ywi"k4>
END ORH93`
HV\"T(89
1nB@zBQu-
x86 CPU,GNU/Linux,NASM `Bu9Nq
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). F5IZ"Itu(
;Enter this into "hello.asm" then type: A&l7d0Z^j5
;"nasm -f elf hello.asm" wLMvC{5
;"ld hello.o -o hello" 8c).8RL f
;"./hello" B] i:)
,}<RrUfD
section .data ;data section declaration Z| L2oce
msg db 'Hello World!',0AH JS7dsO0;
len equ $-msg ;string length D rTM$)
<E}N=J'uJ
section .text ;code section declaration C BlXC7_Mi
global _start ;entry point (start of execution) XRa#21pQ
_start: mov edx,len ;string length ]) n0MF)p
mov ecx,msg ;string start ][t6VA
mov ebx,1 ;file handle: stdout _8S4Q!
mov eax,4 ;sys_write
UTX](:TC
int 80h ;kernel system call D3.VXuKn6
M=+M8M`Iy
mov ebx,0 ;return value 3{pk5_c
mov eax,1 ;sys_exit (}0S1)7t
int 80h ;kernel system call )*
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:gaETr
(H-cDsh;c
x86 CPU,Windows,MASM32 %M6
c0d[9-
.386 gvo?([j-m
.model flat,stdcall i;]CL[#2e`
option casemap:none 2Oi' E
;Include 文件定义 r=0j7^B#
include windows.inc YkI9d&ib+
include user32.inc 5Hy3\_ +
includelib user32.lib -t>Z
9
include kernel32.inc l
$w/Fz
includelib kernel32.lib kp; &cQu!
;数据段 *|poxT G
.data k}<<bm*f
szCaption db 'A MessageBox!',0 [Q:f-<nH
szText db 'Hello,world!',0 EW9b*r7./
;代码段 mR,O0O}&
.code _XWnS9
start: f?5A"-NS
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK E[*0Bo]
invoke ExitProcess,NULL @E(P9zQ/zy
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> L]*`4L
end start "5(W[$f*]v
gi 5XP]z
E@mkm
AWK [%?hCc
BEGIN { print "Hello, world!" } &L'6KEahR
+ "zYn!0
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BASIC ]7l{g9?ZtV
传统版BASIC(例如GWBASIC): qzHU)Ns(_
<k5`&X!+
10 PRINT "Hello, world!" vgN@~Xa
20 END w-M7opkq
kAt
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或在提示符输入: 6qf-Y!D5
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?"Hello, world!":END tbS#^Y
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现代版BASIC(例如Quick BASIC): _^-D _y
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Print "Hello, world!" 1[px`%DR~
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以下的语句在Quick BASIC中同样有效: w?i)/q
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? "Hello,world!" oHk27U G
r;$r=Uf r
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BCPL VH[l\I(h
GET "LIBHDR" Z"]xdOre
t)KPp|&
LET START () BE 1NW>wo
$( sc9]sIb
WRITES ("Hello, world!*N") i:{:xKiC a
$) my]P_mE
vyujC`61d
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Befunge k5q(7&C
"!dlrow olleH">v fH; |Rm
, VYHOk3
^_@ o;E(Kj
mcCB7<.
e
8cB=}XgYS
Brainfuck eXc[3ceUr
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< J#+Op/mmo
+++++++++++++++.>.+++.------.--------.>+.>. ":nI_~q
K[n<+e;G
)Gmb?!/^
C aE}=^%D
#include <stdio.h> 1T:)Zv'
Z`|> tbOfZ
int main(void) r.?qEe8VV
{ 5VuCU
printf("Hello, world!\n"); )eVzS j>MT
return 0; ~0av3G
} ixg\[5.Q+
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x-tm[x@;o
C++ K6ciqwUO
#include <iostream> ,nI_8r"M>
RzMA\r;#
int main() )gL&
{ dvC0 <*V
std::cout << "Hello, world!" << std::endl; ?56~yQF/2
return 0; XC
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} kx:c*3q.k
r4;^c}
N `J:^,H
C++/CLI cAYa=}~<
int main() /j`i/Ha1
{ ?a*fy}A|
System::Console::WriteLine("Hello, world!"); CX1L(Y[
} bX a %EMF
?T tQZ
U+(Z#b(Q
C# (C Sharp) ^qE<yn
class HelloWorldApp )e@01l
{ ZD$-V3e`
public static void Main() 0f_66`
{ xgZV0!%
System.Console.WriteLine("Hello, world!"); xC=
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1
} %@M00~-
} }IxY(`:qs
aeN}hG
{JCSR2BB
COBOL 67Af} >Q
IDENTIFICATION DIVISION. vo:52tCk}m
PROGRAM-ID. HELLO-WORLD. s:-8 Z\,
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ENVIRONMENT DIVISION. M Ak-=?t
@2x0V]AI
DATA DIVISION. 0X] ekq
Co{MIuL
PROCEDURE DIVISION. I!C(K^
DISPLAY "Hello, world!". GC5#1+fQ
STOP RUN. xiOv$.@q
gb!@OZ c
DTX/3EN
Common Lisp $@+p~ )r(l
(format t "Hello world!~%") D=5t=4^H(
3{N p 9y.
UUdu;3E=5
DOS批处理 *IMF4x5M
@echo off qv
;1$
echo "Hello, world!" y]~+ `9
W TXD4}
?3B t;<^
Eiffel 1j${,>4tQ
class HELLO_WORLD u8{@PlS
j.
ks UJ
creation ^C,/T2>
make 7gZVg@
feature dw{#||
make is MA/"UV&M(
local Pq[0vZ_}dN
io:BASIC_IO vV:MS O'r
do i5>J
!!io 4z-,M7iP
io.put_string("%N Hello, world!") $BR=IYby
end -- make Mo/2,DiI5
end -- class HELLO_WORLD 7YQK@lS
'
q=NTP
LS2ek*FJO
Erlang ^J#*n;OQ3A
-module(hello). ]P}K3tN%]
-export([hello_world/0]). k^'d@1z;C
j]ln
:?\
hello_world() -> io:fwrite("Hello, World!\n"). @kCD.
mvL0F%\.\
{'=Nb
5F
Forth H8o%H=I%
." Hello, world!" CR j-C42Pfr
W O+?gu
0Z1H6qn
Fortran 3wa<,^kqy
WRITE(*,10) !e#I4,f n
10 FORMAT('Hello, World!') Ck/_UY|
STOP `1[Sv"
END G\,A> mT/P
gqJEJ~
Vx7Dl{?{'
HTML &=6cz$]z
<HTML> )kY_"= d
<HEAD> nX.s h
<TITLE> Hello World! </TITLE> W:+2We @
</HEAD> n[MIa]dK
<BODY> qeK
<p>Hello World!</p> =Zb"T5E
</BODY> xJH9qc ME
</HTML> J:mu%N`
(-Ct!aW|
+N(YR3
HQ9+ ]\9B?W(#
H hO<w]jV,
(zTI)EV
M5ySs\O4
INTERCAL <
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PLEASE DO ,1 <- #13 FOUs=
E[
DO ,1 SUB #1 <- #238 T>uWf#&pjs
DO ,1 SUB #2 <- #112 BqEubP(si
DO ,1 SUB #3 <- #112 W|-N>,G
DO ,1 SUB #4 <- #0 vA7jZw
DO ,1 SUB #5 <- #64 TLL[F;uZ
DO ,1 SUB #6 <- #238 J:-TINeB
DO ,1 SUB #7 <- #26 M@2Qn-I
DO ,1 SUB #8 <- #248 (.XDf3
DO ,1 SUB #9 <- #168 |>o0d~s
DO ,1 SUB #10 <- #24 |<Dx
DO ,1 SUB #11 <- #16 #NQz&4W
DO ,1 SUB #12 <- #158 fF-\TW
DO ,1 SUB #13 <- #52 }$k`[ivBx(
PLEASE READ OUT ,1 vL=--#
PLEASE GIVE UP I }W-5%
xV 1Z&l
W!4V:(T
Java Mb2 L32
public class Hello 4ysdna\+
{ F6GZZKj
public static void main(String[] args) e'?doP
{ \`%Y-!H+v
System.out.println("Hello, world!"); 3ws(uF9$
} F+y`4>x
} `=l{kBZT|
ESf7b `tS
>\oJ&gdc
JSP =UKR<@QrK
<% {LJ6't 8y:
out.print("Hello, world!"); SnF[mN'
%> hy&Hl
e%v4,8
(yTz^o$t|
MIXAL &'ETx"
TERM EQU 19 the MIX console device number I/b8
ORIG 1000 start address \/4%[Q2QDm
START OUT MSG(TERM) output data at address MSG ~md|k
HLT halt execution ZO0]+Ko
MSG ALF "MIXAL" '%RK KA
ALF " HELL" ;@Hi*d[
ALF "O WOR" >/`cmNmb
ALF "LD " i7FR78^
END START end of the program ?*mbce[
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XM@i|AK
M0
Nuva ?G>TaTiK#
<..直接输出..> aC
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Hello, world! u`Qcw|R+
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<..或者..> x)wt.T?eL
yGG\[I;7
<. ,p`bWm
// 不带换行 59Q Q_#>
? "Hello, world!" "XsY~
N3c)ce7[
// 或者 2Yd~v|
`0XbV A
// 带换行 & c9Fw:f;
?? 'Hello, world!' Wk6&TrWlY
.> -LK(C`gB
'*;eFnmvs:
-xgmc-LGo
OCaml `b`52b\6S
let main () = Hg_
XD,
print_endline "Hello world!";; d?y\~<
-XIvj'u
:O+b4R+
Pascal !3Z|!JY
program Hello; H1qw1[%0y
begin 2pNJWYW"
writeln('Hello, world!'); e.ym7L]$O
end. I%C:d#p
|A/_Qe|s2
'"\Mjz)/
Perl (IHBib "
#!/usr/local/bin/perl QR$sIu@%
print "Hello, world!\n"; x2c*k$<p
%vYlu%c<
#&c;RPac!6
PHP ayz1i:Q|
<?php t\d;}@bl
print("Hello, world!"); /_\W*@ E
?> D c.W vUM
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afq
+;Sh
Pike 6-}e-H
#!/usr/local/bin/pike {&qsh9ob
int main() !rGI),
{ }(}vlL
write("Hello, world!\n"); ^l9
*h
return 0; 6;XpLivP7
} 8vo7~6yy
Jd6Q 9~z#
B_jI!i{N%o
PL/I !-nm7Q
Test: procedure options(main); {:OVBX
declare My_String char(20) varying initialize('Hello, world!'); *<QL[qyV
put skip list(My_String); k\Tm?^L)
end Test; 2_v+q
I19F\
L`4
bO3KaOC8N
Prolog *]?YvY
goal Y,}43a0A
write("hello,world!"). 1RHH<c%2n
Xb
1 ^Oj
&scD)
Python 2dW-WHaM
#!/usr/local/bin/python xmd$Jol^
print "Hello, world!" 7B"aFnK;[J
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B#3
oYx
f((x
REXX 1K',Vw_
say "Hello, world!" UpBYL?+L
c4W"CD;D
iPNsEQ0We
Ruby [c )\?MWW
#!/usr/bin/ruby 7O :Gi*MA
print "Hello, world!\n" )@M|YM1+
~3]8f0^%m
I@v.Hqg+7
Scheme (:]iHg3
(display "Hello, world!") |<icx8hbr
(newline) /^ 7
9|$E
(XWs4R.mkb
3e1"5~?'<
sed (需要至少一行输入) T5G+^XDA
sed -ne '1s/.*/Hello, world!/p' _fw'c*j
hV>Ey^Ty
'o9V0#$!
Smalltalk f89<o#bm7h
Transcript show: 'Hello, world!' &r_B\j3
;I0/zeM%
t Ks0]8tc
SNOBOL ~+Y;jAdU
OUTPUT = "Hello, world!" Ho/5e*X
END &!=3Fbn
!p2&$s"N.
LO229`ARr|
SQL 8V nZ@*
create table MESSAGE (TEXT char(15)); P\R3/g
insert into MESSAGE (TEXT) values ('Hello, world!'); >=bO@)[
select TEXT from MESSAGE; jZGmTtx
drop table MESSAGE; q0<g#jK
&'R]oeag
|v+b?@
Tcl 0=04:.%D
#!/usr/local/bin/tcl %K%z<R8
puts "Hello, world!" |@+
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C`ok{SNtUy
7@`(DU`z
TScript ~(c<ioIf
? "Hello, world!" 1g@kHq
`` ={FaV~m
#q-t!C%E
Turing D_{J:Hb
put "Hello, world!" {5*5tCIt
q7;)&_'
3^Ex_jeB
UNIX-style shell ~7*HZ:.
程序中的/bin/sh可改为您使用的shell ,J[sg7vcv
=3@^TW(j
#!/bin/sh y ^YrGz.
echo 'Hello, world!' Z7(hW,60
vi'K|[!?
_L"rygit
GUI kAqk~.
e='3gzz
Delphi p7z#4 GW
program HelloWorld; /];F4AO5
uses TGg* (6'z
Dialogs; EV9m\'=j
begin P~~RK&+i
ShowMessage('Hello, World!'); Axr'zc
end. JO
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sh0O~%]g
zdY`c
Nuva pgI@[zp7
<. wc;5tb#
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) fUa`YryQ
.> Dj[D|%9a
<)M?qkjb
9AS,-5;XQ
Visual Basic )sW1a
MsgBox "Hello, world!" #0weN%
'或者 JAgec` T%
Print "Hello, world!" ?L_#AdK
[}FP_Su$6
`P'{HT
Visual FoxPro ek.L(n,J|
? "Hello, world!" ;]p#PNQ0
E;%{hAD{
py)V7*CgH
X11 O^LzS&I*
用一个程序 _wm"v19
3B>!9:w~f
xmessage 'Hello, world!' JBuorc
Qg3
-%i/@
用C++和gtkmm 2 (!;4Y82#
w^dB1Y7c(W
#include <iostream> @T1-0!TM')
#include <gtkmm/main.h> +&JF|#FQ`
#include <gtkmm/button.h> .NZ_dz$c
#include <gtkmm/window.h> anv_I=
using namespace std; j'~xe3j
d!,V"*S
class HelloWorld : public Gtk::Window >/Slk{
{ 1&wLNZXH
public: jMg Ni@
HelloWorld(); +>{{91mN
virtual ~HelloWorld(); O(CUwk
protected: V[CS{Hy'
Gtk::Button m_button; aMT&}3
virtual void on_button_clicked(); <` HLG2
}; >a
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C#;}U51:t
HelloWorld::HelloWorld() : m_button("Hello, world!") _8t{4C
{ H!HkXm"
set_border_width(10); vfmKY iLp
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ;p)gTQa
add(m_button); 'Ko
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m_button.show(); lZ'NLbK
} Xq,{)G%9nM
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HelloWorld::~HelloWorld() {} *S`&
XPj
b1E>LrL
void HelloWorld::on_button_clicked() ^\J/l\n
{ & Z*&&
cout << "Hello, world!" << endl; q=Q5s?sQc
} /id(atiF^
8+Oyhd*|
int main (int argc, char *argv[]) `UGHk*DL)
{ sYgpK92
Gtk::Main kit(argc, argv); LQ373
j-
HelloWorld helloworld; Qgf\gTF$r+
Gtk::Main::run(helloworld);
:p5V5iG
} S"V|BU
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Java |?i-y3N
import java.awt.*; WR%x4\,d#
import java.awt.event.*; `gSqwN<x%
;WWUxrWif
public class HelloFrame extends Frame +)dQd T0Fq
{ P]bI".A8
HelloFrame(String title) ~f;d3dJ]/
{ "O!J6
super(title); uF/l,[0v
} 3T+#d-\
public void paint(Graphics g) +Gg6h=u
{ S{XV{o
super.paint(g); gR
)xw)!
java.awt.Insets ins = this.getInsets(); 049E#[<Q"
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); #"jEc*&=
} ]*'V#;s
public static void main(String args []) _
)b:F=4j
{ Wz`MEyj
HelloFrame fr = new HelloFrame("Hello"); "d^h Y}Xx
Tky\W%Ag
fr.addWindowListener( )#%k/4(Y
new WindowAdapter() R/VrBiw
{ xxL D8?@e7
public void windowClosing(WindowEvent e) 1Y'9|+y+
{ / q*n*j
System.exit( 0 ); 4Z.G
} vc0'x4
} NifzZEX
); mR\rK&'6
fr.setResizable(true); hN=YC\l
fr.setSize(500, 100); vN=e1\
fr.setVisible(true); 7A@]t_83Y
} ,HO~NqmB4
} aY&