“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。 _opB,,G
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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》。 zqLOwzMlLx
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以下是用不同语言写成的Hello World程序的几个例子: v7<r-<I[
Ada p3qKtMs0!
with Ada.Text_Io; use Ada.Text_Io; g6@^n$Y
procedure Hello is UYGO|lkEU
begin y24/lc
Put_Line ("Hello, world!"); e\}'i-
end Hello; 9O\yIL
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汇编语言 Jm 1n|f
HMw}pp:
x86 CPU,DOS,TASM w$aejz`[
MODEL SMALL lr=quWDY
IDEAL
!Y*O0_
STACK 100H Y8/&1s_
u6
4{w,
DATASEG 2>)::9e4
HW DB 'Hello, world!$' P}vk5o'
Ki(0s
CODESEG IO"q4(&;P4
MOV AX, @data yY!@FGsA
MOV DS, AX ZeH=]G4Zv7
MOV DX, OFFSET HW ^2nH6,LPS
MOV AH, 09H %-an\.a.
INT 21H juMHc$d17
MOV AX, 4C00H "5"{~3Gw^
INT 21H %F(lq*8X
END ?>mpUH
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x86 CPU,GNU/Linux,NASM 5s<.qDc
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ue -a/a
;Enter this into "hello.asm" then type: G*g*+D[HM
;"nasm -f elf hello.asm" WyUa3$[gO
;"ld hello.o -o hello" HG3iK
;"./hello" #66u<FaG
nMOXy\&mI
section .data ;data section declaration _+<AxE9\
msg db 'Hello World!',0AH G#3$sz
len equ $-msg ;string length q)N^
ODKS6E1{
section .text ;code section declaration :JK+V2B$H
global _start ;entry point (start of execution) =-!B4G$
_start: mov edx,len ;string length !*}E
mov ecx,msg ;string start >[g.8'hI
mov ebx,1 ;file handle: stdout nX<yB9bXDg
mov eax,4 ;sys_write {?X9juc/#
int 80h ;kernel system call FLQ^J3A,I
_r`(P#Hy
mov ebx,0 ;return value dZAb':
mov eax,1 ;sys_exit } A}Vd:#
int 80h ;kernel system call iThf\
3m"9q
C^!~WFy
x86 CPU,Windows,MASM32 k>#-NPU$
.386 6\x/Z=}L
.model flat,stdcall oP:/%
option casemap:none a lyA#zao|
;Include 文件定义 &&Otj-n5
include windows.inc US&:UzI.
include user32.inc B~%SB/eu
includelib user32.lib >~uKkQ_p
include kernel32.inc ! ~+mf^D
includelib kernel32.lib 'E cd\p
;数据段 y7LM}dH#m
.data ~uuM0POo
szCaption db 'A MessageBox!',0 ZSn6JV'g
szText db 'Hello,world!',0 z=TuUl@
;代码段 v&xhS
yZ
.code Se[>z(
start: k!!d2y6
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ]C>h_,EZc
invoke ExitProcess,NULL %Z yt;p2
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> jtPHk*>^wu
end start q^b12@.
vZIx>
o'ZW
AWK 9)'wgI#
BEGIN { print "Hello, world!" } H4BuxM_r
V# JuNJ
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BASIC M2M&L,/O
传统版BASIC(例如GWBASIC): /?S,u,R
avd`7eH2
10 PRINT "Hello, world!" '3B7F5uLx"
20 END !~]'&9
_
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或在提示符输入: ^NrC8,p
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?"Hello, world!":END ($[@'?Z1
XZxzw*Y1J
现代版BASIC(例如Quick BASIC): Wbi12{C
^F-AZP
/5F
Print "Hello, world!" <#lNi.?.
6^TWY[z2%
以下的语句在Quick BASIC中同样有效: 6W)#FO`
tA-p!#V<k1
? "Hello,world!" |q 0iX2W
qO>A6
(o!i9)
BCPL >x${I`2w
GET "LIBHDR" #$JY&!M
<KZ J
LET START () BE t#7owY$^
$( ~\Udl
WRITES ("Hello, world!*N") mnM$#%q;%
$) ];Y tw6A
V.w!]{xm
HCa EETk5
Befunge B`|H}KU
"!dlrow olleH">v D#11
N^-K
, |k)Nf+(}W
^_@ 78E<_UgcB
}nWW`:t kx
W<H<~wf#
Brainfuck @eRv`O"
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< |@dY[VK>
+++++++++++++++.>.+++.------.--------.>+.>. (E \lLlN
%Pk@`t (3
}M${ _D
C l8d }g
#include <stdio.h> dhi9=Co;
G V% @A
int main(void) y{QF#&lW
{ }?Tz=hP
printf("Hello, world!\n"); hFDo{yI
return 0; CoM?cS S
} i$z*~SuM#
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Yu|L6#[E
C++ S[RVk=A1
#include <iostream> 8&v%>wxR@
9S{0vc/2@
int main() <is%lx(GDX
{ z5t"o !
std::cout << "Hello, world!" << std::endl; - s0QEQ
return 0; zG~nRt{4
} $ !:xjb
Wq*W+7=.
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C++/CLI qZX\riR
int main() vFsl]|<;8
{ ^-K~y
System::Console::WriteLine("Hello, world!"); ./}W3
} _Zbgmasb
incUa;
ASaNac-3
C# (C Sharp) iIU>:)i
class HelloWorldApp "ax"k0
{ DZV U!J
public static void Main() oqy}?<SQ
{ Q5tx\GE
System.Console.WriteLine("Hello, world!"); ),f d,
} <O]B'Wc [
} @%[
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r#WAS2.TP
r~T3Ieb
COBOL 41\V;yib
IDENTIFICATION DIVISION. 1lf]}V
PROGRAM-ID. HELLO-WORLD. w(nQ:;oC
Y !AQ7F
ENVIRONMENT DIVISION. Yx<wYzD
.0]Odf:@
DATA DIVISION. 1)ZdkTF@H
r<-@.$lf
PROCEDURE DIVISION. #l_hiD`;r
DISPLAY "Hello, world!". /` 4B-Y4M4
STOP RUN. _~uYNvmg
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Bc51
0I$c
Common Lisp <84d
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(format t "Hello world!~%") _eMY?
9d&}CZr
S$i3/t
DOS批处理 @]B
7(j<'R
@echo off C9E@$4*
echo "Hello, world!" Ozs&YZ
t}-rN5GO
R?+:Js/
Eiffel H?j!f$sw
class HELLO_WORLD K_LwYO3
=s1Pf__<k
creation #[NNb?`F
make JiCy77H
feature rqYx\i?
make is !!UQ,yU
local O@? *5
io:BASIC_IO p`{ | [<
do ^0T[V-PgiD
!!io \UBQ:+3
io.put_string("%N Hello, world!") 5`[B:<E4
end -- make f`8mES'gc8
end -- class HELLO_WORLD "SN+ ^`
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i{6wns?KMj
Erlang D^\2a;[AxA
-module(hello). 2V =bE-
-export([hello_world/0]). "3:TrM$|A
$7bux1L
hello_world() -> io:fwrite("Hello, World!\n"). glP
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%R LGO&
f2RIOL,
Forth o:Q.XWa@MG
." Hello, world!" CR jd?NN:7
{-)*.l=
HU+zzTgI
Fortran =CjN=FM
WRITE(*,10) nwPU{4#l<
10 FORMAT('Hello, World!') UvM_~qo
STOP dLy-J1h\
END {]dH+J7
.3,6Oo
\P7y&`|
HTML DU1\ K
<HTML> Gu@Znh-D
<HEAD> bdkxCt
<TITLE> Hello World! </TITLE> 1PjqXgN5p
</HEAD> Blnc y
<BODY> uQtwh08i
<p>Hello World!</p> mY,t]#^m7
</BODY> d3K-|
</HTML> Q!"W)tD
,7|Wf
%X
I6Mr[#*
HQ9+ UIi`bbJ
H YR}By;Bq
L% ?3VW
##clReS
INTERCAL XbKNH>
PLEASE DO ,1 <- #13 Ba /^CS
DO ,1 SUB #1 <- #238 JLH,:2
DO ,1 SUB #2 <- #112 YN 31Lo
DO ,1 SUB #3 <- #112 A J"/T+g_
DO ,1 SUB #4 <- #0 MJ0UZxnl
DO ,1 SUB #5 <- #64 (YH/#n1"{
DO ,1 SUB #6 <- #238 ;m cu(J
DO ,1 SUB #7 <- #26 hz~jyH.h_
DO ,1 SUB #8 <- #248 *]RCfHo\=
DO ,1 SUB #9 <- #168 a#4 'X*
DO ,1 SUB #10 <- #24 , 1`-u$
DO ,1 SUB #11 <- #16 2%(RB4+
DO ,1 SUB #12 <- #158 rYwUD7ip
DO ,1 SUB #13 <- #52 '`fz|.|cbB
PLEASE READ OUT ,1 JypXQC}~
PLEASE GIVE UP j: /cJt
Y;6%pm $
@%sr#YqY
Java 1I -LGe[Q
public class Hello +F3`?6UXz
{ hCKx%&[^7
public static void main(String[] args) JOm6Zc
{ zS+_6s
System.out.println("Hello, world!"); R x.]m0
} W:z!fh-
} #8[iqvE
7f\@3r
A T'P=)F@
JSP #cD20t
<% gaXKP1m^
out.print("Hello, world!"); 9 ?~Y
%> iu(+
N~
#J<IHNRt
K:g:GEDgf
MIXAL 0x/3Xz
TERM EQU 19 the MIX console device number ~ok i s
ORIG 1000 start address O9tgS@*Tv
START OUT MSG(TERM) output data at address MSG bxA1fA;
HLT halt execution auS.q5
%
MSG ALF "MIXAL" q=40l
ALF " HELL" 1-bQ
( -
ALF "O WOR" Jf{
M[ z
ALF "LD " @*rED6zH
END START end of the program --9Z
Nu%:7
9x40
Nuva c@1q8,
<..直接输出..> Hz6yy*
Hello, world! mv+K!T6
J$Qm:DC5
<..或者..> [M{EO)
, JUP
<. p*
// 不带换行 wuQ>|\Zs
? "Hello, world!" w(xRL#%
5Si\hk:o
// 或者 'o*:~n
,$qqHSd1M
// 带换行 qm&Z_6Pw
?? 'Hello, world!' 4/Bn9F
.> %g<J"/
}_{QsPx9
Y[yw8a
OCaml /-W-MP=Wd
let main () = > \KVg(?D
print_endline "Hello world!";; FTg4i\Wp
,LHQ@/}A C
mzX <!
Pascal l6S6Y
program Hello; 2i@t;h2E
begin ]$vJK
writeln('Hello, world!'); khW9n*
end. X0.-q%5
3koXM_4_{)
3oCw(Ff
Perl <XHS@|
#!/usr/local/bin/perl "n3i(sZ
print "Hello, world!\n"; ;5.o;|w?!
k<M~co;L
aumXidbS
PHP ;|Z;YK@20
<?php Q&9%XF
uM
print("Hello, world!"); >Lo!8Hen
?> p~sfd
OZ$"P<X_"
I'[hvp
Pike z]YP
#!/usr/local/bin/pike -*K!JC-
int main() `>q|_w\e
{ B
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write("Hello, world!\n"); s\`Vr;R:|
return 0; yq?_#r
} _0rHxh7}q
G D$jP?
28j=q-9Z
PL/I (&6C,O~n^.
Test: procedure options(main); /I'n]
declare My_String char(20) varying initialize('Hello, world!'); Y,bw:vX
put skip list(My_String); 9o7d3 ir)
end Test; x\Y%/C[Kc
3PonF4
FBGHVV
w!
Prolog !7g
E
goal `FImi9%F
write("hello,world!"). e<>Lr
@J~y_J{
:);]E-ch
Python #&1Y!kbdd
#!/usr/local/bin/python LaE;{ jY
print "Hello, world!" %}=$HwN)
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sQA{[l!aj
REXX Z w5\{Z0
say "Hello, world!" 9rb/h kX&
~EU[?
f$E66yG
Ruby OU(z};Is6Z
#!/usr/bin/ruby ?CS
jn
print "Hello, world!\n" ?;,Al`/^
'^l/e: (H3
G5Ci"0
Scheme k"SmbFn%N0
(display "Hello, world!") f= }Mr8W'
(newline) eh'mSf^=p
L!L/QG|wdf
DJE/u qE
sed (需要至少一行输入) wS2iyrIB
sed -ne '1s/.*/Hello, world!/p' 8-5a*vV,>
\QUvImT
,h2q37
Smalltalk ru`;cXa,
Transcript show: 'Hello, world!' T^a {#B
!v2,lH
hh"0z]
SNOBOL );h\0w>3
OUTPUT = "Hello, world!" qD\%8l.]Z
END fBH&AO$Q
skcMGEB
h6x+.}}
SQL &1Fcwj
create table MESSAGE (TEXT char(15)); D,eJR(5I
insert into MESSAGE (TEXT) values ('Hello, world!'); Snt=Hil`
select TEXT from MESSAGE; $EJ*x$
drop table MESSAGE; |?Q(4(D`*
^BM/K&7^
e#^|NQ<'A
Tcl Z"?AaD[
#!/usr/local/bin/tcl Za!c=(5
puts "Hello, world!" DuvP3(K
BH0rT})
SEchF"KJQF
TScript BHmA*3?
? "Hello, world!" W7A'5
gE=~.P[ZX
fnnwe2aso
Turing vP}K(' (
put "Hello, world!" oQ;f`JC^
-R'p^cMA
7IJb$af:;
UNIX-style shell
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程序中的/bin/sh可改为您使用的shell 29ft!R>[
YY!(/<VI
#!/bin/sh \ b9,>
echo 'Hello, world!' na']{a1K
;(0:6P8I
`A
<yDy
GUI UxicqkX
24N,Bo
3
Delphi Dlj=$25
program HelloWorld; N/?MsrZw
uses ^y6Pkb
P
Dialogs; E2*"~gL^,
begin ,.`^Wx6F
ShowMessage('Hello, World!'); 6 qKIz{;
end. !v;r3*#Nky
UuT[UB=x5
)N=b<%WD
Nuva /1li^</|p`
<. CJKH"'u3^
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Z `\7B e
.> ^}1RDdQ"U
oh@r0`J]x
3`9*Hoy0c
Visual Basic PYHm6'5BtB
MsgBox "Hello, world!" $PS5xD~@
'或者 b"FsT
Print "Hello, world!" yL
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18A&[6"!
A[ iPs9
Visual FoxPro 6vaxp|D
? "Hello, world!" 2FVKgyV
h5F'eur
}ZmdX^xB
X11 Y|VzeJC
用一个程序 1M;)$m:
.sG,TLE[<
xmessage 'Hello, world!' ONjc},_
O[L8(+Sn
用C++和gtkmm 2 '6 'XBL?
{hg$?4IyQ
#include <iostream> c&Zm>Qo[
#include <gtkmm/main.h> g?$9~/h :;
#include <gtkmm/button.h> ?^ErrlI_
#include <gtkmm/window.h> #P9VX5Tg
using namespace std; !F<?h e<U
Awh"SUOh0
class HelloWorld : public Gtk::Window =h_gj >
{ &\X;t|
public: {H+?DMh
HelloWorld(); BkZ%0rw%
virtual ~HelloWorld(); KncoIw
protected: 'j)eqoj
Gtk::Button m_button; D1Sl+NOV
virtual void on_button_clicked(); 'j3'n0o
}; P~qVr#eU
&"kx(B
HelloWorld::HelloWorld() : m_button("Hello, world!") 0 j.Sb2
{ JZXc1R| 9
set_border_width(10); Ksp;bfe
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); g^C6"rsnl
add(m_button);
(KQt%]
m_button.show(); OXacI~C
} *(scSC>
]Cz16e&=2
HelloWorld::~HelloWorld() {} aBI]' D;
>Qx#2x+
void HelloWorld::on_button_clicked() 2>!ykUw^O
{ m5p~>]}fYF
cout << "Hello, world!" << endl; " /'=gE
} L,D>E
/r%+hS
int main (int argc, char *argv[]) $F-XXBp
{ PW`Tuj
Gtk::Main kit(argc, argv); ;dFe >`~
HelloWorld helloworld; Ax^'unfQ:
Gtk::Main::run(helloworld); $~YuS_sYg
} -0X> y
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-&EmEXs%
Java JgB# EoF
import java.awt.*; heKI<[8l
import java.awt.event.*; 2$o[
0/ Ht;(
public class HelloFrame extends Frame 'oHR4O*
{ _Nn!SE
HelloFrame(String title) .;:xx~G_Q
{ :}JZKj!}M
super(title); uf^:3{1
} 0|ps),
public void paint(Graphics g) ?},ItJ#>)q
{ uJOW%|ZN`
super.paint(g); _5T7A><q<
java.awt.Insets ins = this.getInsets(); ^8m+*t
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); V"p<A
} Vd0GTpB?1
public static void main(String args []) qj6`nbZ{va
{ t4IJ%#22
HelloFrame fr = new HelloFrame("Hello"); 0uz"}v)
Rpk`fxAO
fr.addWindowListener( `"H?nf0
new WindowAdapter() Ds87#/Yfv
{ rxK0<pWJhx
public void windowClosing(WindowEvent e) (OqJet2{+
{ QC4T=E]`j
System.exit( 0 ); [j?<9
} gHx-m2N
} x3s^u~C)(w
); Wn^^Q5U#
fr.setResizable(true); faq
K D:
fr.setSize(500, 100); %jxuH+L
fr.setVisible(true); >D/~|`=p
} #& wgsGV8C
} xiF%\#N
M: "ci;*$
rl%Kn^JJ~
Java Applet ElXe=5L\#
Java Applet用于HTML文件。 6
b}feEh$!
'D&G~$
HTML代码: }BJ1#<
WQpJd7
<HTML> :6?&FzD`
<HEAD> 3-bcY4
<TITLE>Hello World</TITLE> \=7=>x_
</HEAD> 1[l>D1F?
<BODY> ? sW`**j
$/TA5h
HelloWorld Program says: ? ~Zrd
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gLW
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> i8YgG0[)
</APPLET> wWw/1i:|'
k_n{Mss'9
</BODY>
n ;5?^Un%
</HTML> LtztjAm.
vB5iG|b}
Java代码: +&,\ J9'B
PAwg&._K
import java.applet.*; [T]qm7
?
import java.awt.*; O{#Cddt:r
g
u =fq\`
public class HelloWorld extends Applet \hW73a!
{ eH955[fVd4
public void paint(Graphics g) q"D
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{
sGls^J)
g.drawString("Hello, world!", 100, 50); :EwA$`/
} %_MR.J+m2
} oRThJ B
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tgtoK|.
java script xqWrW)
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 ,?<h] !aQ
m]d6@"Z.
<script language="java script"> ^Cn]+0G#C8
function helloWorld() ff1B)e
{ 0~b6wuFl
alert("Hello World"); !7`=rT&