“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。 ;g;1<?
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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》。 aR'~=t&;z1
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以下是用不同语言写成的Hello World程序的几个例子: i2;,\FI@t%
Ada Vg :''!4t2
with Ada.Text_Io; use Ada.Text_Io; P}>>$$b\Yi
procedure Hello is VR%*8=
begin ,rF!o_7
Put_Line ("Hello, world!"); 'H4?V
end Hello; B2KBJ4rI[1
1C]BaPbL
@?;)x&<8?3
汇编语言 H0yM`7[y
d0f(U k
x86 CPU,DOS,TASM Z c#Jb
MODEL SMALL *~*"p)`<
IDEAL fZLAZMrM
STACK 100H ;Bw3@c
(ip3{d{CT]
DATASEG ,U+>Q!$`\^
HW DB 'Hello, world!$' +x/vZXtOK
%`\Qtsape
CODESEG rW_cLdh]#
MOV AX, @data @v!#_%J
MOV DS, AX =vriraV"
MOV DX, OFFSET HW ~2yhZ
MOV AH, 09H sIl&\g<b
INT 21H &.#dZ}J
MOV AX, 4C00H 8Bh
micU
INT 21H OsVz[w N
END 2R^Eea
x9 n(3Oa
aGws?<1$
x86 CPU,GNU/Linux,NASM _JA)""l%
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 1,U)rx$H
;Enter this into "hello.asm" then type: 0ia-D`^me
;"nasm -f elf hello.asm" .|TF /b]
;"ld hello.o -o hello" l8_RA
;"./hello" ae2SU4Jx
'?fGI3b~/
section .data ;data section declaration gw%L M7yQR
msg db 'Hello World!',0AH Y%@;\
len equ $-msg ;string length Jw^my4
'"ze Im~
section .text ;code section declaration 4!-R&<TLve
global _start ;entry point (start of execution) hhI*2|i"L
_start: mov edx,len ;string length ,9ew75Jl
mov ecx,msg ;string start w{;~
mov ebx,1 ;file handle: stdout 5lM 3In@
mov eax,4 ;sys_write :<0lC j
int 80h ;kernel system call cS@p`A7Tpo
Bs>S2]
mov ebx,0 ;return value xo n^=Wo;
mov eax,1 ;sys_exit 3/(eK%d4Xb
int 80h ;kernel system call 5$X 8|Ve
xgM\6e
3O_O5
x86 CPU,Windows,MASM32 [D<(xr&N%
.386 YB^m!A),I[
.model flat,stdcall /+. m.TF
option casemap:none 9#~jlq(
;Include 文件定义 *KU:D Y{
include windows.inc [biz[fm
include user32.inc CP$,fj
includelib user32.lib ;vWJOvM2
include kernel32.inc 2
'$nz
includelib kernel32.lib *#@{&Q(Qh
;数据段 $"}*#<Z
.data I?%#`Rvu
szCaption db 'A MessageBox!',0 i1]}Q$
szText db 'Hello,world!',0 AXnKhYlu
;代码段 /c4$m3?]
.code <KStlfX
start: <A`SC;k\u
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK km`";gUp>
invoke ExitProcess,NULL Pi,86?
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ^%Ln@!P
end start ~(`MP<
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O@:R\MwFOZ
AWK )]E?~ $,
BEGIN { print "Hello, world!" } rg]z
-&)
ST4[d'|j
BASIC IEI&PRD
传统版BASIC(例如GWBASIC): C*t0`3g
d
cA|
n*A-j<
10 PRINT "Hello, world!" 3#\C!T0y
20 END i~5'bSqc
=Pp-9<&S
或在提示符输入: 60D6UW
)]\-Uy$x
?"Hello, world!":END mT;
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现代版BASIC(例如Quick BASIC): +HD2]~{EkL
Q#&6J =}
Print "Hello, world!" B&EUvY '
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以下的语句在Quick BASIC中同样有效: e. E$Ej]w
Kv#Q$$)r
? "Hello,world!" `nc=@" 1
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TIF =fQ
BCPL 6\y?+H1
GET "LIBHDR" 'I>geW?{QK
OL@$RTh
LET START () BE {"rL3Lk
$( @f,/ K1k
WRITES ("Hello, world!*N") )U8=-_m
$) ZK<c(,oZ^
Z]Cd> u
IL?"g{w
Befunge (I{+%
"!dlrow olleH">v |F qujZz
,
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^_@ ,WAJ&
'^
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D
`+0P0(bn
Brainfuck 9pk-#/ag
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< tU>7jo[-p
+++++++++++++++.>.+++.------.--------.>+.>. Oz"_KMz
="AaC!E,W
N~?(<DyZR
C fEGnI\
#include <stdio.h> Tv|iCYB?
^^YP kh6sS
int main(void) ~ET XXu${I
{ &F*eo`o}6
printf("Hello, world!\n"); iWkC:fQz
return 0; N7)K\)DS!z
} ],'"iVh
dMI G2log
~Ds3-#mMy
C++ %P C[-(Q
#include <iostream> 3aJYl3:0B
{c<cSrfI
int main() ]v+yeGIK S
{ L_M(Lj
std::cout << "Hello, world!" << std::endl; bJw{ U.
return 0; P\@efq@!
} `<hMrhfh
FyChH7
\J-D@b;
C++/CLI /U0,%
int main() AMK(-=
{ D23 c/8K
System::Console::WriteLine("Hello, world!"); E0u&hBd3_
} c&PaJm
^#4<~zU
on1B~?*D
C# (C Sharp) *{O[}
class HelloWorldApp :+8qtIytKX
{ {?r5~T`2
public static void Main()
| 1a}p
{ sdN1BV2
System.Console.WriteLine("Hello, world!"); AH:0h X6+
} x((Rm_'
} HY(XI u
eEYzA
E+$D$a
COBOL <2N=cH'
IDENTIFICATION DIVISION. u$D%Iz
PROGRAM-ID. HELLO-WORLD. M5N#xgR
m@",Zr`f=
ENVIRONMENT DIVISION. h1$75E?,
h"f_T
[
DATA DIVISION. ,hp8b$
K.b:ae^k
PROCEDURE DIVISION. j?\z5i""f
DISPLAY "Hello, world!". NC
sem
STOP RUN. #1WCSLvtV
Q9&H/]"v
%Y9CZRY9
Common Lisp vX&W;&
(format t "Hello world!~%") x]IJ;
:*YnH&
3KtJT&RuL
DOS批处理 P#[?Kfi
@echo off ju1B._48
echo "Hello, world!" |w5,%#AeO$
{TDZDH
vdot .
Eiffel g|tclBx
class HELLO_WORLD wR"17z7[]
)^
P Wr^
creation I^[[*Bh*C
make $ <3^( y
feature ,}NTV~
make is -wh
local gJ^taUE
io:BASIC_IO 4zZ.v"laVM
do x~](d8*=
!!io Vd'=Fe;eB
io.put_string("%N Hello, world!") o.s(=iG
end -- make U.Y7]#P:
end -- class HELLO_WORLD `]a0z|2'!
,Kt51vG i
Y8N+v+V/
Erlang FuG;$';H75
-module(hello). N*)O_Ki
-export([hello_world/0]). }i^$
li@
`Q[NrOqe"
hello_world() -> io:fwrite("Hello, World!\n"). +zEyCx=8H
}T}xVd0
(O&HCT|
Forth yR"mRy1
." Hello, world!" CR lNTbd"}$:
Fh/sD?
[2!C^\t
Fortran "]\3t;IT
WRITE(*,10) rbl^ aik
10 FORMAT('Hello, World!') ph~BxK )i6
STOP ux6p2Sk;K
END k *>"@
;d
FJqo82
%"WhD'*z}
HTML \s!x;nw[
<HTML> D0>Pc9
<HEAD> #$F*.vQSs+
<TITLE> Hello World! </TITLE> kdaq_O:s
</HEAD> M`E}1WNQ?]
<BODY> 1MmEP
<p>Hello World!</p> Qj$w7*U
</BODY> wJ"]H!r0
</HTML> nj1PR`AE
3eB)X2~
?]o(cz
HQ9+ L\V`ou
H EV7lgKM^
&xp]9$
=ADOf_n}
INTERCAL Ejnk\ 8:
PLEASE DO ,1 <- #13 cwzgIm+
DO ,1 SUB #1 <- #238 ce; zn\
DO ,1 SUB #2 <- #112 lQy-&d|=#^
DO ,1 SUB #3 <- #112 |kTq
&^$
DO ,1 SUB #4 <- #0 W Bb*2
DO ,1 SUB #5 <- #64 +r&:c[
DO ,1 SUB #6 <- #238 /y6I I$AvM
DO ,1 SUB #7 <- #26 f.$*9Fkw
DO ,1 SUB #8 <- #248 ZB}A^X
DO ,1 SUB #9 <- #168 ;lfv.-u:<
DO ,1 SUB #10 <- #24 :Gew8G
DO ,1 SUB #11 <- #16 #%w)w R3
DO ,1 SUB #12 <- #158 >8b%*f8R
DO ,1 SUB #13 <- #52 ) TRUx
PLEASE READ OUT ,1 O%haaL\
PLEASE GIVE UP ~O]{m,)n
mkrVeBp
7p1B"%
Java z 7+>G/o
public class Hello 0Ue~dVrM(?
{ N
Hn#c3o
public static void main(String[] args) _dmG#_1
{ 96P&+
System.out.println("Hello, world!"); 2+Oz$9`.
} 9hh~u
-8L
} i0zrXaKV
tU *`X(;
b=U3&CV9
JSP .2s^8 g O
<% *2rc Y
out.print("Hello, world!"); tGzp=PyA
%> ayQeT
_O;4>
H6Bw3I[
MIXAL \9uK^oS
TERM EQU 19 the MIX console device number uPjp5;V
ORIG 1000 start address `uZMln @
START OUT MSG(TERM) output data at address MSG f1;@a>X
HLT halt execution OiS\tK?|GV
MSG ALF "MIXAL" Rjv;[
ALF " HELL" 4O/IT1+A
ALF "O WOR" oZ ^,*
ALF "LD " ect$g#
END START end of the program `S.I,<&
B2a#:E,6
s`0IyQXVU
Nuva W/}_ y8q
<..直接输出..> L#J2J$=
Hello, world! &`m$Zzl;
nh"dPE7^
<..或者..> E31YkD.A
7#NHPn
<. O.-n&U9
// 不带换行 !2^~ar{2
? "Hello, world!" WuFBt=%
TdT`Vf
// 或者 =LKM)d=1
E|+<m!
// 带换行 %g{)K)$,ui
?? 'Hello, world!' {cb<9Fii
.> ;r&Z?B$
s9OW.i]zX
M_>kefr
OCaml >/lB%<$/
let main () = *'-t_F';
print_endline "Hello world!";; s@{~8cHgU
^E:-Uy
ByO?qft>u
Pascal m7C!}l]9
program Hello; ;R
Jv7@
begin k7;i^$@c
writeln('Hello, world!'); /wl]kGF
end. PxGw5:
>(wQx05^D
I|qhj*_C
Perl z
Tz_"NI
#!/usr/local/bin/perl }/,Rp/+7]
print "Hello, world!\n"; R!lug;u#
RA;/ ?l
-sZb+2tDa
PHP Li"+`
<?php W&&|T;P<J
print("Hello, world!"); 8lGM>(:o
?> ,<)D3K<
L F } d
EtaKo}!A}
Pike ! K_<hNG&
#!/usr/local/bin/pike E_DQ.!U!o
int main() odC"#Rb
{ Xo]2iQy
write("Hello, world!\n"); <lWj-+m
return 0; } .Z`
} /BD'{tZ]Sl
YD;d*E%t
0@{0#W3R
PL/I @rDBK] V
Test: procedure options(main); *|<~IQg
declare My_String char(20) varying initialize('Hello, world!'); wfpl]d!
put skip list(My_String); 'GX x|.
end Test; &5${k'
C"B'Dj
,UNk]vd
Prolog `]] <.>R
goal 4Orq;8!BW
write("hello,world!"). Y:L[Iz95o
]8DTk!
/<IWdy]$3
Python 8q9ATB-^>
#!/usr/local/bin/python bt_c$TN
print "Hello, world!" :]]x^wony~
)S 4RR2Q>
:z&kbG
REXX }+G5i_a
say "Hello, world!" ~ {yy{
]Y!Fz<-;P
%7P]:G+Y\
Ruby :vzIc3~c:`
#!/usr/bin/ruby $u'"C|>8
print "Hello, world!\n" h6^|f%\w*i
sgGA0af
a0gg<Ml
Scheme ;<B
(display "Hello, world!") OKK Ko`RN
(newline) [ }Tb2|
r@qLG"[\c
9_iwikD
sed (需要至少一行输入) PnInsf%;
sed -ne '1s/.*/Hello, world!/p' q5= ,\S3=
=~Qg(=U0U
z rG
Smalltalk JGTsVa2
Transcript show: 'Hello, world!' SA&(%f1d
<FBBR2
SZ9DT
SNOBOL qHdUnW
OUTPUT = "Hello, world!" k'H[aYMA
END 6kLy!QS
l9="ccM
*AQ3RA 8
SQL : [328X2
create table MESSAGE (TEXT char(15)); @6tczU}ak
insert into MESSAGE (TEXT) values ('Hello, world!'); ;-@: }/
select TEXT from MESSAGE; fpf,gb8[$n
drop table MESSAGE; :Dw_$
LjE3|+pJ
WysWg7,r
Tcl &Tuj`DL
#!/usr/local/bin/tcl
zhd1)lgY
puts "Hello, world!" 3*2~#dh=
'@ Y@Fs
9T5 F0?qd
TScript ~ZSX84~@u
? "Hello, world!" *AW v
O65`KOPn
UhL1Y
NF_
Turing saP%T~
put "Hello, world!" ~mXzQbe
p
}Oc+EV-Z
U&u6356
UNIX-style shell #)xlBq4cZ
程序中的/bin/sh可改为您使用的shell 8tQL$CbO
<nD@4J-A0
#!/bin/sh `N.:3]B
t
echo 'Hello, world!' x[0hY0 ?[M
#&?ER]|3
=FV(m
S
GUI tlUh8os
7<MEM NYX
Delphi -V}xvSVg
program HelloWorld; Kc2y
uses gDLS)4^w
Dialogs; EJTM
>Rpor
begin O!f37n-TB
ShowMessage('Hello, World!'); 4c 8{AZ
end. l1'v`!
k)*apc\W
M.}J SDt
Nuva kBcTXl
<. ]bh%pn
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) JG'%HJ"D
.> i]?
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5;" $X 1{
v+ in:\Dv
Visual Basic WA43}CyAe
MsgBox "Hello, world!" 7:pc%Ksq
'或者 (1^;l;7H
Print "Hello, world!" 6Yodx$
4jTO:aPh_
y-nv#Ejr
Visual FoxPro SF+L-R<e
? "Hello, world!" nCWoco.xy
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2p](`Y`
X11 S%}G 8Ty
用一个程序 v"ORn5
Q\kWQOB_
xmessage 'Hello, world!' >zX^*T#
Q;y5E`G
用C++和gtkmm 2 9GCK3
)G^k$j
#include <iostream> ]-{fr+
#include <gtkmm/main.h> e(
@</W
#include <gtkmm/button.h> >\<eR]12
#include <gtkmm/window.h> Y`]P&y
using namespace std; JFX}))7
upaP,ik}~
class HelloWorld : public Gtk::Window V.*M;T\i
{ *1kFy_Gx
public: 06 %-tAq:
HelloWorld(); RVwS<g)~1
virtual ~HelloWorld(); EMO{u
protected: :FS5BT$=
Gtk::Button m_button;
b7\> =
virtual void on_button_clicked(); b<~8\\&
}; ^`id/
erUK;+2g
HelloWorld::HelloWorld() : m_button("Hello, world!") 3c6e$/
{ U?f-/@fc
set_border_width(10); 83R s1}*
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); iTAj${ >
add(m_button); ?.<
Qgd
m_button.show(); ^SG>VfgC
} 0~RD@>]
"%D"h
HelloWorld::~HelloWorld() {} mwLf)xt0'
PbZ%[F
void HelloWorld::on_button_clicked() 2?q>yL! Gz
{ "zY~*3d
cout << "Hello, world!" << endl; (BP p2^
} 8=L"rekV_
CqC
)H7A
int main (int argc, char *argv[]) $eI
cCLF
{ 81y<Uz 6
Gtk::Main kit(argc, argv); K<5yjG8&
HelloWorld helloworld; X/:V{2
Gtk::Main::run(helloworld); &}e>JgBe0
} ,NZllnW
~8nR3ki
EIQ3vOq6
Java fiWN^sTM
import java.awt.*; X[dfms;H
import java.awt.event.*; ;-~E!_$
o c]
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public class HelloFrame extends Frame Ds"%=
{ _ncBq;j{
HelloFrame(String title) DKfpap}8u
{ VNT?
super(title); uoE+:,P
} )r{Wj*u
public void paint(Graphics g) iZfZF
{ Sdmz(R
super.paint(g); F*J1w|)F0
java.awt.Insets ins = this.getInsets(); DVhBZ!u9
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); t adeG
} V~ KWy@7
public static void main(String args []) Pv2uZH(
{ RN)XIf$@_
HelloFrame fr = new HelloFrame("Hello"); r&a}U6k(y
{f`Y\_r$@
fr.addWindowListener( }WFI/W'
new WindowAdapter() hzM;{g>t
{ yOEy3d=*
public void windowClosing(WindowEvent e) #N`G2}1J
{ E`JW4)AH
System.exit( 0 ); R_/;U&R
} :$u[1&6
} W3!-;l
); <bhGpLh-E
fr.setResizable(true); s(Gs?6}>T
fr.setSize(500, 100); +d=f_@i
fr.setVisible(true); ,5Wu
} h?/E />
} kB CU+FC
-JEPh!oTt
s(fkb7W,gO
Java Applet KH?6O%d
Java Applet用于HTML文件。 }[z7V
sz270k%[
HTML代码: U=KUx
4_VgJ9@
<HTML> 5&p}^hS5
<HEAD> Q3hf =&$
<TITLE>Hello World</TITLE> *GXPN0^Qjo
</HEAD> 9F3,
<BODY> x1g-@{8]j
-j<E_!t
HelloWorld Program says: &_