“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。 s~5rP:
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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》。 fX1Ib$v
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以下是用不同语言写成的Hello World程序的几个例子: <<@F{B7h
Ada /7.//klN
with Ada.Text_Io; use Ada.Text_Io; +*eVi3
procedure Hello is <0Gk:NB,
begin - xyY6bxL
Put_Line ("Hello, world!"); ybIqn0&[
end Hello; #??[;xjs!
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T/hz23nH
汇编语言 F"23vG>3
eG.s|0`
x86 CPU,DOS,TASM "412w^5[T
MODEL SMALL p<FqK/
IDEAL (d .M} G
STACK 100H >Wd_?NaI
G6\`Iy68/v
DATASEG S]&aDg1y}
HW DB 'Hello, world!$' !rZZ/M"i
/(%!txSNEt
CODESEG CRNt5T>qH
MOV AX, @data C_h$$G{S(
MOV DS, AX 6y{CM/DC
MOV DX, OFFSET HW TeJ=QpGW2
MOV AH, 09H ArT@BqWd
INT 21H n6c+Okj
MOV AX, 4C00H = ^%*: iT
INT 21H [BEQ ~A_I
END cCG!X%9
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6_;n bqY&
x86 CPU,GNU/Linux,NASM [mG!-.ll
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). :"K9(XKKU
;Enter this into "hello.asm" then type: fzN?X=
;"nasm -f elf hello.asm" y (%y'xBP
;"ld hello.o -o hello" 4 *.
O%
;"./hello" P_.AqEH
<(45(6fQ
section .data ;data section declaration )]zsAw`/
msg db 'Hello World!',0AH }YU\}T-P
len equ $-msg ;string length owA.P-4
Y44[2 :m
section .text ;code section declaration jZe/h#J)[
global _start ;entry point (start of execution) A5s;<d0
_start: mov edx,len ;string length pMf
?'l
mov ecx,msg ;string start j:HIcCp
mov ebx,1 ;file handle: stdout m:9|5W
mov eax,4 ;sys_write y7Hoy.(
int 80h ;kernel system call A^\g]rmK
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mov ebx,0 ;return value AU8sU?=
mov eax,1 ;sys_exit n3\~H9
int 80h ;kernel system call q{xF7}i
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x86 CPU,Windows,MASM32 wxF\enDY
.386 \[AJWyP
.model flat,stdcall }E&:
option casemap:none Q-yNw0V}F
;Include 文件定义 =9:gW5F69
include windows.inc jq_ i&~S
include user32.inc 9LSV^[QUH
includelib user32.lib ?*~sx=mC
include kernel32.inc zu,Yuq
includelib kernel32.lib l4&
l)4Rx
;数据段 .OlPVMFt
.data R I:kp.V
szCaption db 'A MessageBox!',0 }LoMS<O-[
szText db 'Hello,world!',0 34J*<B[Njo
;代码段 0~Xt_rN](
.code A,?6|g`q'
start: E<@N4%K_Q
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK -'^:+FU
invoke ExitProcess,NULL KppYe9?
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 2g5jGe*0
end start n.G.fbO
[|\#cVWs
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AWK Io{BO.K*Y
BEGIN { print "Hello, world!" } FyNm1QNy^
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y-~_ W 6\
BASIC Us%g&MWdpb
传统版BASIC(例如GWBASIC): xZVZYvC,t
R%`fd *g
10 PRINT "Hello, world!" #6C<P!]V
20 END I[n|#N
#wsi><7
或在提示符输入: mA^3?yj
D/wJF[_
?"Hello, world!":END VKSn \HT~
E
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现代版BASIC(例如Quick BASIC): G\~?.s|^
zd {sw}
Print "Hello, world!" _.I58r
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以下的语句在Quick BASIC中同样有效: ;
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? "Hello,world!" ;(Az
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3jHE,5m
BCPL 7W>(T8K X\
GET "LIBHDR" G?Za/G
w zi7pJjXh
LET START () BE qI<c47d;q
$( }[(v(1j='~
WRITES ("Hello, world!*N") _`,ZI{.J^
$) /L./-92NH4
u~~ ~@p
JkKbw&65
Befunge sj6LrE=1
"!dlrow olleH">v Oc5f8uv
, U
U#tm
^_@ 5tEkQ(Ei8
;s8\F]K
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Brainfuck uavyms^
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< {`(MK6D8 c
+++++++++++++++.>.+++.------.--------.>+.>. S>jOVWB
E%a&6W
Z/ L%?zH
C K#VGG,h7Y
#include <stdio.h> MeAY\V%G=o
n Q{~D5y,,
int main(void) ^AERGB\36
{ zjzEmX
printf("Hello, world!\n"); -z%->OUu
return 0; KEf1GU6s
} ;j+*}|!
xc7Rrh]}
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C++ 9Q\RCl_1
#include <iostream> F)@zo/u5L
*e:2iM)8~
int main() 4
[]!Km
{ A=70UL
std::cout << "Hello, world!" << std::endl; dJlK'zK
return 0; pimI)1 !$'
} MPF({Pnx7
x6^FpNgQ
9#kk5 )J
C++/CLI O'QnfpQ*9
int main() 12: Q`
{ XEN-V-Z%*
System::Console::WriteLine("Hello, world!"); y.(m#&T
} *:`fgaIDa
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C# (C Sharp) wNUcL*n
class HelloWorldApp d@zxgn7o
{ Yu9VtC1
public static void Main() XinKG<3!
{ $4og{
System.Console.WriteLine("Hello, world!"); ^s$U
n6v[
} ==trl#kQ%%
} jc@=
b:r=
k L4 #
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i6`(
COBOL WcpH="vm
IDENTIFICATION DIVISION. C'jCIL
PROGRAM-ID. HELLO-WORLD. CIRMAX
o@C|*TXN
ENVIRONMENT DIVISION. +U?73cYN
ZZc^~
DATA DIVISION. D&]xKx
xn)F(P 0kv
PROCEDURE DIVISION. }iLi5Qkx
DISPLAY "Hello, world!". ?}EWfsA
STOP RUN. 579t^"ja~
gV*4{d`
OC\cN%qlw
Common Lisp 4`7~~:W!M5
(format t "Hello world!~%") n"Jj'8k
!"aGo1$$
A>(EM}\,
DOS批处理 9<"F3F0|
@echo off ^E%NYq_2l<
echo "Hello, world!" F>E_d<m
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Eiffel w2^s}NO
class HELLO_WORLD U8%IpI;
?Qts2kae#
creation nppSrj?
make ?wjk=hM2
feature }R:oWR
make is ")NQwT}
local =CL,+
io:BASIC_IO b'xBPTN
do "'>fTk_
!!io g1B P
io.put_string("%N Hello, world!") O_5;?$[m
end -- make 0
eOdE+
end -- class HELLO_WORLD g26 l:1P
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t=[/L]!
Erlang j",*&sy
-module(hello). 9mpQusM
-export([hello_world/0]). Gr3 q
c3\p@}
hello_world() -> io:fwrite("Hello, World!\n"). Z(J
1A x
+^$;oG
i_I`
Forth E>"SC\#7
." Hello, world!" CR N0ZD+
XU}" h&>
9,}Z1 f\%
Fortran ux[13]yY
WRITE(*,10) Zh?n;n}
10 FORMAT('Hello, World!') q z!^<
M
STOP foI:`]2"*
END frWY8&W^H
\ow(4O#
lB|.TCbW
HTML nH[>Sff$
<HTML> uHTm
<HEAD> ldG$hk'
<TITLE> Hello World! </TITLE> oK&G
</HEAD> 4&~*;an7
<BODY> I*(7(>zgyv
<p>Hello World!</p> Rr\fw'
</BODY> \<b42\a}
</HTML> dBW4%Zh
4_4|2L3
>SD?MW1E
HQ9+ v\XO?UEJ2
H X d&oERJj
K%/g!t)
Ge76/T%{Q
INTERCAL "(:8$Fb
PLEASE DO ,1 <- #13 wee5Nirw6
DO ,1 SUB #1 <- #238 b/=>'2f
DO ,1 SUB #2 <- #112 ?;go5f+X
DO ,1 SUB #3 <- #112 h0VeXUM;.
DO ,1 SUB #4 <- #0 sWgzHj(c
DO ,1 SUB #5 <- #64 1mx;b)4t
DO ,1 SUB #6 <- #238 @9MrTP
DO ,1 SUB #7 <- #26 EFs\zWF
DO ,1 SUB #8 <- #248 <Oj'0NK-
DO ,1 SUB #9 <- #168 ?j}
Fxr
DO ,1 SUB #10 <- #24 oMN
Qv%U
DO ,1 SUB #11 <- #16 e#?rK=C?9
DO ,1 SUB #12 <- #158 X-%91z:o58
DO ,1 SUB #13 <- #52 LM".]f!,
PLEASE READ OUT ,1 XJ3aaMh"
PLEASE GIVE UP hrbeTtqi
yGb^k R}d
"K*^%{
Java c* )PS`]t
public class Hello &Fch{%S>
{ =Flr05}m
public static void main(String[] args) m=]}Tn
{ *@&V=l
System.out.println("Hello, world!"); "6iq_!#L
} A@ w9_qo
} v<?k$ e5
PO=A^ b
8noo^QO
JSP xllmF)]*Y
<% 7L!q{%}
out.print("Hello, world!"); )/t=g
%> Uql7s:!,U
'ExQG$t
%#7^b=;=
MIXAL vn96o]n
TERM EQU 19 the MIX console device number E~,Wpl}
ORIG 1000 start address <*$IZl6I
START OUT MSG(TERM) output data at address MSG &>hln<a>
HLT halt execution cA+O]",}
MSG ALF "MIXAL" ?w@KF%D
ALF " HELL" jiLt *>I
ALF "O WOR" XN'<H(G
ALF "LD " Fi#b0S
END START end of the program U9q6m3#$
Za1VJ5-
-O[9{`i]
Nuva W;
?'
<..直接输出..> kL%o9=R1
Hello, world! w Yr M2X@
P Z+Rz1x
<..或者..> G~Fjla\?Q
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<. OlYCw.Zu
// 不带换行 z%L\EP;o}
? "Hello, world!" 1=Q3WMT
IZ+ZIR@}ci
// 或者 {>>Gc2UT
x% Eu.jj
// 带换行 p87VJ}
?? 'Hello, world!' <(2,@_~@r
.> 'FGf#l<
`z`"0;,7S
]WC@*3'kye
OCaml </7?puVR
let main () = Dad*6;+N
print_endline "Hello world!";; [moz{Y
ILXV yU
GvD{ I;
Pascal 1;y?!;FD
program Hello; OW8"7*irT
begin ?rv5Z^D'
writeln('Hello, world!'); 9vz"rHV
end. lnRbvulH
MIWI0bnf
cvQMZ,p
Perl /g]m,Y{OI
#!/usr/local/bin/perl Ptv=Bwg
print "Hello, world!\n"; ,;-55|o\V
]abox%U=%
_l!TcH+e
PHP +;wu_CQu
<?php <Q?X'.
print("Hello, world!"); <YBA
7i
?> *ZA.O
bcZ s+FOPd
A{b?ZT~2]
Pike Dz>v;%$S-
#!/usr/local/bin/pike [1 gWc`#
int main() S,TK;g
{ .jC-&(R
+
write("Hello, world!\n"); ^ G(GjW8
return 0; H0\5a|X-
} YDr/Cw>J
J^BC
Jri"Toz0
PL/I )mMHwLDwH
Test: procedure options(main); _Tj`
declare My_String char(20) varying initialize('Hello, world!'); 6@@J>S>
put skip list(My_String); H{3A6fb<
end Test; :If1zB)
wWR9dsB.;
F82_#|kpS
Prolog Jd>"g9
goal /`V:;
write("hello,world!"). 6Q.6
Ad:)5R o
@SV.F
Python i0-zGEMB.
#!/usr/local/bin/python X}$uvB}+>
print "Hello, world!" [#emm1k
3<nd;@:-
%}asw/WiUa
REXX {qHf%y&[
say "Hello, world!" &jHnM^nQ
F&om^G'U
Jr4^@]78o<
Ruby p%v+\T2r
#!/usr/bin/ruby RvT>{G~
print "Hello, world!\n" sOBy)vq?\
(PmaVwF
"e\:Cq>\
Scheme ,#PeK(
(display "Hello, world!") f._FwD
(newline) n-7|{1U
,!?&LdPt>
k )T;WCia
sed (需要至少一行输入) wZA(><\
sed -ne '1s/.*/Hello, world!/p' "`AIU}[_I
UlN+
D20n'>ddg
Smalltalk b^Xq(q>5
Transcript show: 'Hello, world!' ;nbUbRb
yF}l.>7D
hC[MYAaF
SNOBOL aa1^cw 5}
OUTPUT = "Hello, world!" 420cJ{;A
END 6R+m;'
$(ugnnJ*
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SQL *hp3w
create table MESSAGE (TEXT char(15)); <-:gaA`KM
insert into MESSAGE (TEXT) values ('Hello, world!'); |3?q L
select TEXT from MESSAGE; e!67Na0X(
drop table MESSAGE; 9
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NyTv~8A`)
#Cda8)jl(
Tcl :N<ZO`l?
#!/usr/local/bin/tcl 7Xu.z9y
puts "Hello, world!" )r#^{{6[v
4Y[uqn[
SoY=
TScript _T 5ZL
? "Hello, world!" Vb`m3
a~_5N&~pi
,nJYYM
Turing =X?jId{
put "Hello, world!" C< GS._V&
OQ>r;)/
w1-/U+0o
UNIX-style shell o:<gJzg
程序中的/bin/sh可改为您使用的shell 1'dL8Y
F^Yt\V~T
#!/bin/sh P%8zxU;
echo 'Hello, world!' !A(*?0`
-DgJkyt+<
{L 7O{:J
GUI X.V6v4
(xnXM}M&2Y
Delphi e-vwve
program HelloWorld; 1muB*
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uses 'yG9Rt
Dialogs; fv?vO2nj
begin Z>GqLq\`ed
ShowMessage('Hello, World!'); f,utA3[
end. $@y<.?k>UP
83io@*D
XD>(M{~
Nuva g~EJja;
<. +D
,Nd=/
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 7;H!F!K]
.> Nrp0z:
RLkP)+t
eq)8V x0
Visual Basic 4\*!]5i
MsgBox "Hello, world!" Kts#e:k@
'或者 =?Y%w%2
Print "Hello, world!" uh`W} n
:_R[@?c
u_+64c_7
Visual FoxPro /ekeU+j
? "Hello, world!" P{qi>FJqe
{<XPE:1>Y
xE+Nz5F
X11 3R!?r^h
用一个程序 UOTM>d1P
d^5OB8t
xmessage 'Hello, world!' kaBP&6|Z
(+Ia:D
用C++和gtkmm 2 D@5Ud)_
,dhSc<:LT
#include <iostream> 8*O]
#include <gtkmm/main.h> *uJcB|KX
#include <gtkmm/button.h> YcJZG|[
#include <gtkmm/window.h> >_9w4g_<
using namespace std; u(W%snl
Rlvb@aXgy
class HelloWorld : public Gtk::Window 0<3)K[m~H
{ [v7)xV@c
public: gJYB)LjH"
HelloWorld(); f|eUpf%)
virtual ~HelloWorld(); "YY6_qQR'
protected: ` drds
Gtk::Button m_button; 0 t. '?=
virtual void on_button_clicked(); G$b*N4yR
}; $]eU'!2)
KW^#DI6tr
HelloWorld::HelloWorld() : m_button("Hello, world!") RLuA^ONI
{ 1=fP68n
set_border_width(10); _M.7%k/U8
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); {FV_APL9_
add(m_button); ZH]n&%@j
m_button.show(); 19.+"H
} d@o1<Q
P+tnXT>nE
HelloWorld::~HelloWorld() {} ANuIPF4NxP
["N{6d&Q
void HelloWorld::on_button_clicked() UPs7{We W
{ x8L$T (^
cout << "Hello, world!" << endl; NkWU5E!
} Bismd21F6=
{*EA5;
int main (int argc, char *argv[]) aZK%?c
{ UZsn14xSA
Gtk::Main kit(argc, argv); '`.bmiM
HelloWorld helloworld; |7
.WP; 1
Gtk::Main::run(helloworld); IhIPy~Hgt
} ?OW! zE:
Mp8BilH-T
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nL(?3
Java <+0TN]?
import java.awt.*; y _Mte
import java.awt.event.*; {yPJYF_l
$@H]0<3,
public class HelloFrame extends Frame (<|NerwD
{ $kc*~V~
HelloFrame(String title) Ygwej2
{ -b?yzg,8
super(title); 6gUcoDD
} C7|zDJ_
public void paint(Graphics g) 7od6`k
{ EfTuHg$pe
super.paint(g); z%$,F9/
java.awt.Insets ins = this.getInsets(); lwY2zX&%)/
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); bf9LR1
} jrOqspv
public static void main(String args []) 6Dx^$=Sa$
{ !KYX\HRW
HelloFrame fr = new HelloFrame("Hello"); 3_AVJv
;N
DOk(5gR
fr.addWindowListener( ;@I4[4ph}
new WindowAdapter() %T OYU(k
{ @wzzI 7}C
public void windowClosing(WindowEvent e) 8efQ-^b.
{ $)V_oQSqn
System.exit( 0 ); GIo7-
6kvm
} 3k5C;5
} -Fl;;jeX
); R~=_,JUW
fr.setResizable(true); a{oG[e
fr.setSize(500, 100); @U~i<kt
fr.setVisible(true); Xup"gYTZQ
} ~Ogtgr
} u{Z
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YlF<S49loC
O.ce"5Y^
Java Applet FCk4[qOp7
Java Applet用于HTML文件。 st|;]q9?
?1+JBl~/d
HTML代码: N-lo[bDJh
qUZm6)p6[a
<HTML> 2}NWFM3C
<HEAD> `|{6U"n
<TITLE>Hello World</TITLE> ?1DA
</HEAD> WcG!6.U>
<BODY> F|rJ{=x
*5kQ6#l
HelloWorld Program says: `cz%(Ry,
e 58
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> >u6*P{;\
</APPLET> ?0ezr[`.
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Cb[1r
</BODY> V*$(T t(
</HTML> v#HaZT]u
CY"iP,nHl
Java代码: & o2F4
a!_vd B
import java.applet.*; _tl,-}~
import java.awt.*; tHvc*D
>z(AQ
public class HelloWorld extends Applet u{H'evv0O
{ igoUKDNiQ-
public void paint(Graphics g) aMUy^>
{ IQ&