“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。 19) !$Hl
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 *V -ds8AQ
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以下是用不同语言写成的Hello World程序的几个例子: S
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Ada WDvV
LU`
with Ada.Text_Io; use Ada.Text_Io; Pfk{ =y
procedure Hello is N"K\ick6J
begin R~c IT:i
Put_Line ("Hello, world!"); p&uCp7]U
end Hello; d
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La]4/=a
XR<G}x
汇编语言 hRLKb}
(s;zRb!4L
x86 CPU,DOS,TASM 9':/Sab:7v
MODEL SMALL
2n(ItA
IDEAL H<XlUCr_~+
STACK 100H E)Srj~$d
:cb[M5c
DATASEG -aT=f9u
HW DB 'Hello, world!$' 5Fh8*8u6hL
.5NZf4:C
CODESEG SKW;MVC
MOV AX, @data .c03}RTC^
MOV DS, AX GeVc\$K-
MOV DX, OFFSET HW UC(9Dz
MOV AH, 09H $^ubo5%
INT 21H ij!*CTG
MOV AX, 4C00H 7G2vYKC'
INT 21H 38"cbHE3
END egbb1+tY
p8_2y~!
' Nw6.5
x86 CPU,GNU/Linux,NASM @EYK(QS-
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). (]}XLMi,|!
;Enter this into "hello.asm" then type: 4[Z1r~t\L
;"nasm -f elf hello.asm" QY@nE
;"ld hello.o -o hello" 4V1|jy3
;"./hello" &62`Wr 0C
p#z;cjfSt
section .data ;data section declaration dhs#D:/{9
msg db 'Hello World!',0AH K# /Ch5?
len equ $-msg ;string length dw3'T4TC?
bYK]G+Ww
section .text ;code section declaration D?%e"*>
global _start ;entry point (start of execution) kv/(rKLp*
_start: mov edx,len ;string length jXtLo,km
mov ecx,msg ;string start uFWvtL?;_
mov ebx,1 ;file handle: stdout lR,G;
mov eax,4 ;sys_write YyG~#6aCh
int 80h ;kernel system call BJ"Ay@D*
x)d2G6x
mov ebx,0 ;return value wqf& i^_
mov eax,1 ;sys_exit tG_-;03<`4
int 80h ;kernel system call 8dlInms
aK!xRnY
+B](5 z4
x86 CPU,Windows,MASM32 qq/_yt
.386 jzQ9zy_
.model flat,stdcall ^971<B(v
option casemap:none cK/PQsMP
;Include 文件定义 G;Us-IRZ
include windows.inc 1O|RIv7F[/
include user32.inc O.dux5lfBd
includelib user32.lib |b,zw^!e['
include kernel32.inc L,GShl 0S
includelib kernel32.lib C CLfvex
;数据段 eK\|SQb
.data #DrZ`Aq
szCaption db 'A MessageBox!',0 WT I 'O
szText db 'Hello,world!',0 .HQVj 'g
;代码段 on6<l
.code .0?ss0~
start: xu`d`!Tx
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Vvx a.B
invoke ExitProcess,NULL 'T6B_9GQ8
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Feh"!k <6k
end start </8be=e7p
B#;s(O
C:WtCAm(
AWK >aX:gN
BEGIN { print "Hello, world!" } &Jrq5Q C
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wVlSjk
BASIC fMgcK$
传统版BASIC(例如GWBASIC): =%:JjgKc*t
t%0r"bTi
10 PRINT "Hello, world!" :v|r= #OI
20 END ](]*]a4ss
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或在提示符输入: u XaL
uPM8GIvZX.
?"Hello, world!":END Wdei`u[
iH($rSE
现代版BASIC(例如Quick BASIC): ~+7a d$
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Print "Hello, world!" rE!G,^_{
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以下的语句在Quick BASIC中同样有效: D!81(}p
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? "Hello,world!" !E4E' I=]N
tn(f rccy
i!s~kk
BCPL ;a#}fX
GET "LIBHDR" "US"`a2
wjN`EF5$}&
LET START () BE u>JqFw1
$( 6RR4L^(m
WRITES ("Hello, world!*N") 4`?sE*P@`
$) 1\M"`L/
=d:R/Z%,
Y*]l|)a6_]
Befunge =U)n`#6_j2
"!dlrow olleH">v >u'/$k
, >#Grf)@"6
^_@ dqIZ#;:g
D}=/w+
GGFar\
EzW
Brainfuck vE^h}~5U
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< &!H~bzg
+++++++++++++++.>.+++.------.--------.>+.>. g~bf!
BH.:_Qrbh[
I,?Fqg'sq
C k~'?"'
#include <stdio.h> l}U~I
3}).
[)C)p*!Y)
int main(void) FZeN,
{ LAu+{'O\
printf("Hello, world!\n"); 0KWy?6 X
return 0; 3n}sCEt=
} WHhR)$zC
zLJ:U`uh\
I@y2HxM
C++ R#[QoyJ
#include <iostream> ?15POY ?Z
e/m'a|%:
int main() y<I Z|f
{ Yc.
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std::cout << "Hello, world!" << std::endl; l^!0|/Vw
return 0; XcJ'm{=
} ,6cbD
-KJ}.q>upq
` $QzTv
C++/CLI b.w(x*a
int main() SopNtcu!
{ Vsm%h^]d
System::Console::WriteLine("Hello, world!"); "63zc1
} q\z=z$VR
v4Fnh`{
Gdc~Lh
C# (C Sharp) &VZmP5Gv
class HelloWorldApp !h`cXY~w
{ &cn%4Er
public static void Main() K~fDv i
{ eEg1-
System.Console.WriteLine("Hello, world!"); \(
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} ],fwZd[t
} Uy_}@50"l
LB64W ;#h
P?3YHa^up
COBOL V5(tf'
IDENTIFICATION DIVISION. OyG_thX
PROGRAM-ID. HELLO-WORLD. 7E\K!v_
n+RUPZ
ENVIRONMENT DIVISION. {Vt^Xc
#qiGOpTF.
DATA DIVISION. [][:/~q!
(c*7VO;
PROCEDURE DIVISION. Ztpm_P6
DISPLAY "Hello, world!". 5@r_<J<>
STOP RUN. ]C!Y~
8g2-8pa{
*Wuctu^9
Common Lisp ]y)R C-N
(format t "Hello world!~%") ]<o.aMdV
(x@i,Ba@
^V0{Ew/x
DOS批处理 c5mhl;+'
@echo off M~g~LhsF
echo "Hello, world!" -Uhl9
=
q!9v}R3(
U d=gdsL
Eiffel 3 DO$^JJ.
class HELLO_WORLD C.9eXa1wkT
)T$fk
creation bTo@gJkn
make X~Rk ,d3
feature !=q:>}g
make is i"\AyKiJ
local P/1UCITq}
io:BASIC_IO ,$zSJzS
do w'zO(6 `
!!io Fh!!T%5>C
io.put_string("%N Hello, world!") \aJ-q?=
end -- make 0u&?Zy9&
end -- class HELLO_WORLD uYFcq
}:c,SO!
7&;jje[
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Erlang ;]#4p8lh+
-module(hello). r* /XB0
-export([hello_world/0]). }T1Xds8w)t
P20]>Hg
hello_world() -> io:fwrite("Hello, World!\n"). 0F0(]7g^
%]:vT&M
<DlanczziF
Forth (k)gZD9~{?
." Hello, world!" CR Pu\DYP:(
U~B}vt
=Gg)GSL^
Fortran g#KToOP
WRITE(*,10) MIXrLh3
10 FORMAT('Hello, World!') @,>=X:7
STOP ~|B!.+
END xfF&$K"
X%R^)zKV
Qig!NgOM
HTML YV _I-l0
<HTML> tx&U"]
<HEAD> `S~@ FX
<TITLE> Hello World! </TITLE> j}?ZsnqV
</HEAD> .X=M!
<BODY> B+q+)O+
<p>Hello World!</p> !y2h`ZAZ
</BODY> d`q)^
</HTML> $> rfAs!
Fi3(glgd-
&+w!'LSaD
HQ9+ 1r:fxZO\Vd
H ZD] '$
8wx#,Xa
Y*X6lo
INTERCAL vJjj+:
PLEASE DO ,1 <- #13 [\%t<aa
DO ,1 SUB #1 <- #238 #O974f8
DO ,1 SUB #2 <- #112 Jm1AJ4mw
DO ,1 SUB #3 <- #112 1eR{~ ,
DO ,1 SUB #4 <- #0 qx<zX\qI6n
DO ,1 SUB #5 <- #64 uY%3X/^j
DO ,1 SUB #6 <- #238 /a/uS3&
DO ,1 SUB #7 <- #26 E_I6
DO ,1 SUB #8 <- #248 c$SxDYG
DO ,1 SUB #9 <- #168 ~x^+OXf!^g
DO ,1 SUB #10 <- #24 Fe2-;o
DO ,1 SUB #11 <- #16 d?qO`-
~$
DO ,1 SUB #12 <- #158 r- "`Abev
DO ,1 SUB #13 <- #52 )Jjw}}$}Y
PLEASE READ OUT ,1 pS)X\Xyw
PLEASE GIVE UP )mZy>45
Z
7ZMu
:V1ZeNw
Java *Lk&@(
public class Hello ~)CU m[:oM
{ Nn4Kt,KY
public static void main(String[] args) 7X3l&J2C4l
{ 7a.#F]`
System.out.println("Hello, world!"); 1Y0oo jD
} ] j?Fk$C
} V@xnz)^t
UY& W]
{$eZF_}Y^
JSP ?[fl$EG
<% Uz8C!L ">C
out.print("Hello, world!"); |2]WA'q
%> WaK{/6?T,
uRcuy/CY
7Qztc?XK
MIXAL LZbHK.G=
TERM EQU 19 the MIX console device number DppvUiQB!a
ORIG 1000 start address E0x$;CG!
START OUT MSG(TERM) output data at address MSG X
OtS+p
HLT halt execution (%IstR|u:
MSG ALF "MIXAL" H.S|njn:r
ALF " HELL" w8@|b}
ALF "O WOR" 'eXw`kw(
ALF "LD " u=i^F|
END START end of the program b,V=B{(~
oDDH;Q"M(
wDTV /"Y
Nuva g
wiC ,
<..直接输出..> U`4Zj1y
Hello, world! %+JTQy
EHM 7=|#
<..或者..> cmLu T/oV
AhZ
<. c oz}VMp
// 不带换行 Z#V\[
? "Hello, world!" ng6p#F,3
}XE/5S}D
// 或者 Y]Nab0R&
PvCE}bY{}
// 带换行 XD>@EYN<X
?? 'Hello, world!' 1pr_d"#4
.> W n mRRq^
qq{N; C
qk"=nAJX
OCaml &otgN<H9
let main () = i 58CA?
print_endline "Hello world!";; HpC4$JMm
+FK<j;}C7
} R6h
Pascal *\+'tFT6
program Hello; ;lt;]7
begin j[eEyCW[)
writeln('Hello, world!'); pjn%CR`;
end. Mo=-P2)>lt
z,P7b]KVe
~"B[6^sW
Perl ^aoLry&i=
#!/usr/local/bin/perl h--!pE+
print "Hello, world!\n"; gJv^v`X
nxRrmR}F
(R,n`x2^
PHP ~q>ilnL"h
<?php o~>go_Y
print("Hello, world!"); n-.k&B{a
?> d)sl)qt}0
;VBfzFH
,DZLEsFM
Pike bGa":|}F
#!/usr/local/bin/pike E6)mBAE
int main() VlNzm
{ Sw)ftC~d
write("Hello, world!\n"); A*i_-;W)
return 0; FZ/&[;E!
} =w>QG{-N
#pFybk
\2b9A'd>
PL/I Ut =y`]F
Test: procedure options(main); K`<P^XJr
declare My_String char(20) varying initialize('Hello, world!'); GUXX|W[6
put skip list(My_String); xFnMXht
end Test; Yl=
|P`
y}`%I&]n
n|6yz[N
Prolog NQD b;5:
goal n-_w0Y
write("hello,world!"). ~?r6Ax-R
pn|{P<b\
"de:plMofy
Python Kwnu|8
#!/usr/local/bin/python fok#D>q
print "Hello, world!" G_]mNh
hT#mM*`
39CPFgi<l*
REXX }OFk.6{{&v
say "Hello, world!" NKrk*I"G
'fsOKx4Z
h,g~J-x`|
Ruby ZAwl,N){
#!/usr/bin/ruby w@We,FUJN
print "Hello, world!\n" j!dklQh0
yfrgYA
8%Lg)hvl
Scheme N~(}?'y9S
(display "Hello, world!") g9JtWgu
(newline) tWuQKN`_
qE[}Cf]X
jF8ld5|_|
sed (需要至少一行输入) _De;SB%V
sed -ne '1s/.*/Hello, world!/p' hZy*E [i
3t'K@W?AJh
5KzU&!Zh9
Smalltalk kE}?"<l
Transcript show: 'Hello, world!' 3*<W`yed
!;-x]_
|QdS;
SNOBOL S"l&=J2dc
OUTPUT = "Hello, world!" teb(\% ,
END
8:MYeE5
Q@R8qc=*
"+AD+D
SQL J2rH<Fd[up
create table MESSAGE (TEXT char(15)); !Fi)-o
insert into MESSAGE (TEXT) values ('Hello, world!'); {Bx\Z0+'&
select TEXT from MESSAGE; hSmM OS{
drop table MESSAGE; gqG"t@Y+
!O*n6}nPE
$[Ns#7K
Tcl QHK$
#!/usr/local/bin/tcl CAO$Zt
puts "Hello, world!" % |V:F. f
:gXj($
R.@GLx_zpQ
TScript w&H7S{
? "Hello, world!" A|^?.uIM
)I@iW\`7
`XQ5> c
Turing ?zEgN!\R)
put "Hello, world!" =0S7tNut
\c)XN<HH
`S|gfJ
UNIX-style shell Qk=
w ,`
程序中的/bin/sh可改为您使用的shell hwJ.M4
$HRpG
#!/bin/sh ^*W3{eyi(L
echo 'Hello, world!' Oqyh{q%]
+e\u4k {3V
4b)xW&K{
GUI lc^%:#@
{|cA[#j#
Delphi Tn|reXc0e
program HelloWorld; 0)Z7U$
uses o?>)CAo
Dialogs; N{'k
]&
begin 4d O>L"
ShowMessage('Hello, World!'); u4Sa4o
end. T!n<ya!
S}<(9@]z
Q]\xO/
Nuva D~<GVp5T
<. fN9hBC@
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ^U1;5+2G+~
.> shD$,!
k
>z2{D7
-v:Y\=[\
Visual Basic ${?Px
c{-
MsgBox "Hello, world!" ZISR]xay
'或者 ; -3M
Print "Hello, world!" W $y?~2
"H({kmR
x-"7{@lz
Visual FoxPro N4Ym[l
? "Hello, world!" 2b<0g@~X
Rj8l]m6U9
\%K6T)9
X11 9X-DR
用一个程序 eK`tFs,u
g$+3IVq&
xmessage 'Hello, world!' KP
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lm+wjhkN
用C++和gtkmm 2 .p&M@h
w
/w|YNDA]j
#include <iostream> =<<\Uo
#include <gtkmm/main.h> ?lTQjw{
#include <gtkmm/button.h> U|>Js!$
#include <gtkmm/window.h> a P`;Nr=
using namespace std; ka (xU#;
3cnsJV]
class HelloWorld : public Gtk::Window Y{jhT^tKK
{ N.fIg
public: @8 pRIS"V
HelloWorld(); N7NK1<vw2
virtual ~HelloWorld();
zd}"8
protected: (Lc%G~{
Gtk::Button m_button; i}Y:o}
virtual void on_button_clicked(); u`ZnxD>
}; =Vi+wH{xM
, v R4x:W
HelloWorld::HelloWorld() : m_button("Hello, world!") }\9qN! ol
{ Q5Wb)
set_border_width(10); ]UNmhF!W>u
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 5EU3BVu&u
add(m_button); B%,0zb+-L
m_button.show(); AojX)_"z
}
;HW@ZI
A;%fAI2Vr
HelloWorld::~HelloWorld() {} 'RPe5 vB
J[^-k!9M
void HelloWorld::on_button_clicked() vnKUD|
{ !$O +M#
cout << "Hello, world!" << endl;
5!wa\)wY
} 1PWDK1GI8
y+c+ / L8
int main (int argc, char *argv[]) F:\CDM=lS
{ >B iJ/[9
Gtk::Main kit(argc, argv); 5nk]{ G> V
HelloWorld helloworld; H#f
FU
Gtk::Main::run(helloworld); ,i'>+Ix<
} RxAZ<8T_
|d{4_o90
FvRog<3X
Java
w*aKb
import java.awt.*; Cjw|.c`
import java.awt.event.*; 1v`*%95
_- { > e
public class HelloFrame extends Frame ]":PO4M$*
{ ,Q^.SHP8
HelloFrame(String title) }4$UlTA'
{ . }^m8PP
super(title); vzfWPjpKW
} l{kum2DT
public void paint(Graphics g) tY VmB:l
{ y3d`$'7H>
super.paint(g); "wdC/
java.awt.Insets ins = this.getInsets(); Qax=_[r
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); BeBa4s
} hivWQ$6%
public static void main(String args []) X'O3)Yg
{ Wq]^1g_
HelloFrame fr = new HelloFrame("Hello"); M4`qi3I
-_B*~M/vV`
fr.addWindowListener( &kh-2#E
new WindowAdapter() 3~Ah8,
{ [V
=O$X_
public void windowClosing(WindowEvent e) p?ICZg:
{ xse8fGs
System.exit( 0 ); 8^kw
} dtJ?J<m}
} {"-uaH>,
); 3b~k)t4R
fr.setResizable(true); X"*pt5B6`
fr.setSize(500, 100); l7\Bq+Q
fr.setVisible(true); I_\j05
} ih~ R?W
} !?,rcgi
x:G uqE
qEE
V&
Java Applet NU O9,
Java Applet用于HTML文件。 /alJN`g
i,ga2{GnM
HTML代码: ~~z}yCl
`i;f
<HTML> <8~bb-U$
<HEAD> M/T
ll]\|
<TITLE>Hello World</TITLE> BVU>M*k
</HEAD> q9|'!m5K
<BODY> `5:b=^'D/
8a)lrIg
HelloWorld Program says: mSr(PIH{\
PCtf&U