“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。 l|gi2~ %Y
70 R6:
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》。 ")uKDq
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以下是用不同语言写成的Hello World程序的几个例子: 5>f"
Ada 2n@`Og_0
with Ada.Text_Io; use Ada.Text_Io; \~%+)a%%
procedure Hello is zs#-E_^%M
begin 8N'hG,
Put_Line ("Hello, world!"); 'A:Y&w"r
end Hello;
{ %X2K
a&8K5Z%0
I{(!h90
汇编语言 WC~;t4
\]Ah=`
x86 CPU,DOS,TASM Ex
p?x
MODEL SMALL (cLK hn@
IDEAL jC>ZMy8U)4
STACK 100H 'D5J5+.z
P knOeW"j
DATASEG T/P\j0hR
HW DB 'Hello, world!$' I8J>>H'#A
-@w,tbc$
CODESEG ~+4lmslR
MOV AX, @data u5}:[4N%I
MOV DS, AX # `E
MOV DX, OFFSET HW BNdq=|,+"
MOV AH, 09H -6- sI
INT 21H u9S*2'
MOV AX, 4C00H ;
D<k
INT 21H Y0,{fw<
END }}TPu8Rl
$mGzJ4&
pE<a:2J
x86 CPU,GNU/Linux,NASM Vp]7n!g4l
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 1iz =i^}
;Enter this into "hello.asm" then type: t^":.}[Q
;"nasm -f elf hello.asm" h8UhrD<:
;"ld hello.o -o hello" -&2Z/qM&!
;"./hello" j13-?fQ&
j_90iP^5:
section .data ;data section declaration 1w7tRw
msg db 'Hello World!',0AH :.g/=Q(T~
len equ $-msg ;string length L D[\eJ_
@3c'4O
section .text ;code section declaration tjtvO@?1-
global _start ;entry point (start of execution) t!rrYBSCr
_start: mov edx,len ;string length (9%?ik
mov ecx,msg ;string start n}Z%D-b$
mov ebx,1 ;file handle: stdout vOlfyH>
mov eax,4 ;sys_write Fc`IRPW<
int 80h ;kernel system call n+=qT$w)
NHyUHFY
mov ebx,0 ;return value g$GGo[_0
mov eax,1 ;sys_exit QoxYzln
int 80h ;kernel system call BT[|f[1
G$Mf(S'f
x*z[(0g!
x86 CPU,Windows,MASM32 o$L%t@
.386 :&
Dv!z
.model flat,stdcall JR`$t~0t
option casemap:none l3b=8yn.
;Include 文件定义 0a:oC(Ak
include windows.inc Gz{%Z$A~o
include user32.inc <1I4JPh>x
includelib user32.lib Fvk=6$d2
include kernel32.inc "W+>?u )
includelib kernel32.lib ~`BkCTT
;数据段 7#j.yf4
.data CJN~p]\
szCaption db 'A MessageBox!',0 cu>(;=
szText db 'Hello,world!',0 BmpAH}%T
;代码段 9oc_*V0<
.code -51LF=(!L
start: (Nc~l ^a
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ':_9o5I
invoke ExitProcess,NULL w3q'n%
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nyPeN?-
end start '/qy_7O
:8OT
]Ic?:lKN
AWK 4$?wD <
BEGIN { print "Hello, world!" } Y0X"Zw
Bd[L6J)
JwI`"$>w
BASIC te\h?H
传统版BASIC(例如GWBASIC): I>kiah*
2i7i\?<.
10 PRINT "Hello, world!" /[20e1 w!
20 END hLyTUt~\L
,\S pjE
或在提示符输入: }l}yn@hYC
@Ge>i5q
?"Hello, world!":END |YE,) kiF
Tbi]oB#
现代版BASIC(例如Quick BASIC): CCW%G,$U9
UKKSc>D1
Print "Hello, world!" XJ:>UNf5;
_^6|^PT.
以下的语句在Quick BASIC中同样有效: ]<8B-D?Z
@ kJ0K
? "Hello,world!" `sk!C7%
%_b^!FR
8:P*z
BCPL V\@jC\-5Vt
GET "LIBHDR" jF38kj3O7
Sg. +`xww3
LET START () BE %ezb^O_6v
$( atLV`U&t
WRITES ("Hello, world!*N") *%T)\\H2
$) ]DC;+;8Jc
@cuD8<\i
WCuzV7tw
Befunge )YzH k ;(
"!dlrow olleH">v Sc1+(z
, J$#h(D%
^_@ [F/^J|VMV
%s$rP
0$eyT-:d
Brainfuck XYqpI/s
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ?w+ QbT
+++++++++++++++.>.+++.------.--------.>+.>. )p$\gwr=2
QU^/[75Ea0
w=f0*$ue+w
C hD nM+4D
#include <stdio.h> eecw]P_?
V#ndyUM;
int main(void) N#(jK1`y
{ ?mH@`c,fM
printf("Hello, world!\n"); jW-;4e*H=V
return 0; ss?]
} hc-lzYS
1s#yWQ
1&"-*)
C++ B0f_kH~p~
#include <iostream> 3g4e']t
FE/$(7rM
int main() M[ x_#m|
{ G/v|!}?wG
std::cout << "Hello, world!" << std::endl; K!3{M!B
return 0; blJIto'
} wA?@v|,dZ
X?tj$
}qer
C++/CLI ?qk@cKS
int main() ecn}iN
{ xT W3UY
System::Console::WriteLine("Hello, world!"); %$Aqbd
} 82lr4
b.QpHrnhtK
I0!j<G
C# (C Sharp) m&Lt6_vi
class HelloWorldApp :`D'jF^S
{ ylk{!
public static void Main() j5kA^MTG
{ A:/}`
System.Console.WriteLine("Hello, world!"); kEO1TS
} ]bIt@GB
} =M/qV
d+tj%7
8=:A/47=J
COBOL H ZPcd_(
IDENTIFICATION DIVISION. lqF>=15
PROGRAM-ID. HELLO-WORLD. 9qEOgJ
(wife#)~
ENVIRONMENT DIVISION. >;,gGH
qmEoqU
DATA DIVISION. =nzFd-P
~P/]:=
PROCEDURE DIVISION. {(;B5rs
DISPLAY "Hello, world!". F=srkw:*.
STOP RUN. J;~E<_"Hn
0C]4~F x~
l8^y]M
Common Lisp V~85oUc\-
(format t "Hello world!~%") .:8[wI_f
`$at9
$.a|ae|K
DOS批处理 2 l(Dee Y
@echo off "J& (:(:
echo "Hello, world!" vevf[eO-
iX{H,-C
IP04l;p/
Eiffel ojoxXly`
class HELLO_WORLD yw'ezpO"
!N1J@LT5h
creation 6}ftBmv
make KSc~GP_
feature bEd?^h
make is t@)my[ !
local x6ahZ
io:BASIC_IO <7^Kt7k
do ^>^\CP]
!!io z?kd'j`FG
io.put_string("%N Hello, world!") KaW~ERx5
end -- make %K?iNe
end -- class HELLO_WORLD xQo~%wW,?
E_3r[1l
({e7U17[#
Erlang GJ `UO
-module(hello). >S'>!w
-export([hello_world/0]). YBvd
q1
:!O><eQw
hello_world() -> io:fwrite("Hello, World!\n"). ZoxS*Xk
X`1p'JD
r?^"65=
Forth 1Nj=B_T
." Hello, world!" CR 6m+W#]^
M/#U2!iFk
~^7r?<aKc
Fortran H)5QqZ8
WRITE(*,10) AS|Rd+.
10 FORMAT('Hello, World!') io2@}xZF
STOP y(v_-6b
END @9vvR7{P
+"uwV1)b"
dB3N%pB^
HTML nY0sb8lZJ
<HTML> SF< [FM%1
<HEAD> {ma;G[!
<TITLE> Hello World! </TITLE> lKWr=k~
</HEAD> J=*K"8Qr
<BODY> 5B*qbM
<p>Hello World!</p> /^2CGcT(
</BODY> HO5d%85
</HTML> J8;Okzb!L
M|r8KW~S)
Y<Q\d[3^F
HQ9+ M#a&\cqC
H Y Pszk5hn
D|Si)_
Iz
4seciz0?
INTERCAL >a=d;
PLEASE DO ,1 <- #13 ]l[2hy=
cV
DO ,1 SUB #1 <- #238 ]XUSqai
DO ,1 SUB #2 <- #112 Df@/cT
DO ,1 SUB #3 <- #112 V@Wcb$mgk
DO ,1 SUB #4 <- #0 |scUo~
DO ,1 SUB #5 <- #64 Dp^/gL=
DO ,1 SUB #6 <- #238 ~NNv>5t5
DO ,1 SUB #7 <- #26 JJ5C}`(
DO ,1 SUB #8 <- #248 0JXqhc9'
DO ,1 SUB #9 <- #168 )ooWQ-%P
DO ,1 SUB #10 <- #24 D1Yh,P<CF\
DO ,1 SUB #11 <- #16 kG^dqqn6
DO ,1 SUB #12 <- #158 ow.j+<M
DO ,1 SUB #13 <- #52 254~:eB0
PLEASE READ OUT ,1 <*Y'lV
PLEASE GIVE UP
p5<2N
>}SRSqJu
A*'V+(
Java I/B1qw;MN
public class Hello )(bxpW
{ (vQ+e
public static void main(String[] args) 3k'.(P|F
{ HC7JMj
System.out.println("Hello, world!"); ez*jjm
} -3hCiKq
} GDPo`#~
\!H{Ks{#R.
g:gB`8w?
JSP Fe$/t(
<% 9;KJr[FQV
out.print("Hello, world!"); Np)aS[9W
%> K{b-TT
4
R]QpMj%o
@
yxt($G
MIXAL ;[6&0!N\
TERM EQU 19 the MIX console device number )+Y&4Qu
ORIG 1000 start address d^84jf.U
START OUT MSG(TERM) output data at address MSG 8QF`,oXQO
HLT halt execution &KqVN]1+^
MSG ALF "MIXAL" (wA?;]q(
ALF " HELL" ("Dv>&w9
ALF "O WOR" X~RH^VYv
ALF "LD " qY(:8yC36
END START end of the program Q$=*aUU%G
9*}gl3y
QzthTX<
Nuva \*"`L3
<..直接输出..> nNn56&N]
Hello, world! 'b[0ci:
MF.[8Zb
<..或者..> Lko`F$5X
77We;a
<. d6.}.*7Whc
// 不带换行 0kLEBoOh
? "Hello, world!" ^M
Ey,
OE"<!oIs
// 或者 ^
KH>1!
V5MO}
// 带换行 P s#>y&
?? 'Hello, world!' _ #'9kx|)
.> 3g'+0tEl
Q4K+*Fi}
Tsz
NlRxc
OCaml ULl_\5s2
let main () = OM!=ViN(=
print_endline "Hello world!";; uO'/|[`8
6?SFNDQ"C
Tf-CEHWD
Pascal m6U8)!)T
program Hello; J{~Rxa
begin Y';>O `
writeln('Hello, world!'); 7rIlTrG
end. +,_c/(P
/`+7_=-
POGw`:)A
Perl `clB43i
#!/usr/local/bin/perl #x~_`>mDN
print "Hello, world!\n"; J}@GKNm
(I=6Nnt'
MY F#A
PHP #&siHHs \
<?php )iSy@*nY
print("Hello, world!"); t)I0lnbs
?> kxo.v |)8
&r@H(}$1\
oVkr3KZ
Pike f z%tA39m
#!/usr/local/bin/pike [hU=mS8=^
int main() }1>atgq]w
{ 'F5)ACA%
write("Hello, world!\n"); 3w'W~
return 0; Uu5C%9^s
} `d*b]2
K-4tdC3
l0`'5>
PL/I {!=2<-Aq
Test: procedure options(main); WQt5#m; W
declare My_String char(20) varying initialize('Hello, world!'); hW%p#g;
put skip list(My_String); 7bT
/KLU
end Test; `Zf9$K|
Wk[)+\WQ?
EUZq$@uWL
Prolog 8c).8RL f
goal XV5`QmB9
write("hello,world!"). : bv|Ah
0yTQ{'Cc
k7T
alR
Python R3G@G
#!/usr/local/bin/python )ddsyFGW
print "Hello, world!" h,]+ >`b
]) n0MF)p
][t6VA
REXX ^&m?qKN8
say "Hello, world!" !KDr`CV&
CB]l[hM$
V6+Zh>'S
Ruby ]xrD<
#!/usr/bin/ruby ]ym C3LV]
print "Hello, world!\n" )r6SGlE[Y
Z564K7IV
O"s`-OM;n
Scheme E_gDwWot
(display "Hello, world!") 5 dNf$a0E
(newline) eS@!\Hx
s*~jvL
<sWcS; x
sed (需要至少一行输入) ga1gd~a
sed -ne '1s/.*/Hello, world!/p' 5N3!!FFE
vL=--#
I }W-5%
Smalltalk vhquHy.qi#
Transcript show: 'Hello, world!' ?D^,K`wY=B
g$-D?~(Z
I#hg(7|",
SNOBOL &_^*rD~
OUTPUT = "Hello, world!" $8T|r+<
END Gv+Tg/
"KI,3g _V
}v$=mLy
SQL =wR]X*Pan
create table MESSAGE (TEXT char(15)); GqD!W8+
insert into MESSAGE (TEXT) values ('Hello, world!'); !%\To(r[
select TEXT from MESSAGE; 7D~O/#dcc
drop table MESSAGE; )w
8lusa
w3bH|VnU8;
wrb& ta
Tcl 8W<)c
#!/usr/local/bin/tcl cxJK>%84
puts "Hello, world!"
2:5gMt
Q]g 4gj
ZO0]+Ko
TScript P$qkb|D,
? "Hello, world!" m|FONQ,@D
?|yJ#j1=
qqred>K
Turing 1K',Vw_
put "Hello, world!" 4zbV' ]
_Fy:3,(
X]%4QIeS
UNIX-style shell F+9|D
程序中的/bin/sh可改为您使用的shell ?"J5~_U.
+>{{91mN
#!/bin/sh O(CUwk
echo 'Hello, world!' V[CS{Hy'
*S*;rLH9c
KrG$W/<tg
GUI g(|p/%H
P oC*>R8
Delphi S__+S7]Nr
program HelloWorld; 9].!mpR
uses !Il<'+ ^
Dialogs; E}yl@8g:#
begin jR*1%.Ng
ShowMessage('Hello, World!'); l=xy_ TCf
end. 1NA>W
pvkru-i]
jg' 'T1)
Nuva >|mmJ4T
<. k(!#^Mlz[
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) {'EQ%H$q
.> {- tCLkE
3
=[3I#s?V
r C$ckug
Visual Basic 7hY~
MsgBox "Hello, world!" n*hHqZl
'或者 [iB`- dE,
Print "Hello, world!" !/sXG\
u0Irf"Ab
nu|;(ly
Visual FoxPro Tgc)'8A;BN
? "Hello, world!" m<hR
Lo
){ArZjG>
j)]mN$Sa:
X11 7P|GKN~
用一个程序 7J.alV4`/
l0l2fwz(
xmessage 'Hello, world!' P]bI".A8
,FlF.pt
用C++和gtkmm 2 BMgiXdv.B
h,LwC9
#include <iostream> UW88JA0
#include <gtkmm/main.h> 7`thM/fN
#include <gtkmm/button.h> 3T+#d-\
#include <gtkmm/window.h> $i7iv
using namespace std; 8%@7G*
Rbm"Qz
class HelloWorld : public Gtk::Window ]9pK^<
{ dX^OV$
public: g!,>.
HelloWorld(); 0L9z[2sj
virtual ~HelloWorld(); 4en[!*
protected: Hw-,sze j"
Gtk::Button m_button; E%FCOKw_
virtual void on_button_clicked(); M[g9D
}; 82O#Fe q
\=P+]9
HelloWorld::HelloWorld() : m_button("Hello, world!") G];5'd~C;d
{ z^;*&J
set_border_width(10); :7
Ro9z8
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); eZ'J,;
add(m_button); E Z15
m_button.show(); &-mPj82R
} X"0n*UTF,
@doo2qqIe]
HelloWorld::~HelloWorld() {} h&|q>M3
.KSPr
void HelloWorld::on_button_clicked() :FcYjw
{ kmXpj3
cout << "Hello, world!" << endl; Hpo7diBE
} bKRz=$P?
?BtWM4Id8
int main (int argc, char *argv[]) C]59@z;+bN
{ %eW[`uyV
Gtk::Main kit(argc, argv); kGR5!8$z
HelloWorld helloworld; +n_`*@SE
Gtk::Main::run(helloworld); U{6i5;F#H
} )L fXb9}
?nN3K
k<x
%
Java 1n|)05p
import java.awt.*; qw={gZ
import java.awt.event.*; !#s1'x{o
=
zJY5@^'7
public class HelloFrame extends Frame f-!t31?XK
{ Hry*.s -
HelloFrame(String title) ozv:$>v@"
{ Huzw>
super(title); M`^;h: DN^
} "_dh6naZX
public void paint(Graphics g) zOO:`^ m
{ >5G2!Ns'
super.paint(g); yv2BbrYyy
java.awt.Insets ins = this.getInsets(); '!Gnr[aR
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); `uK_}Vy_
} XoI,m8A
public static void main(String args []) g!%C_AI
{ pI*/-!I
HelloFrame fr = new HelloFrame("Hello"); -OY[x|0
d9@!se9&Z
fr.addWindowListener( Ewg5s?2|
new WindowAdapter() cEzWIS?pp\
{ ,#;%ILF4%
public void windowClosing(WindowEvent e) 'U=D6X%V9m
{ J<8~w; i
System.exit( 0 ); }ti+tM*
} v"x{oD$R
} I[b@U<\
); eLC}h %
fr.setResizable(true); ~xz3- a/
fr.setSize(500, 100); !B36+W+
fr.setVisible(true); 'J*)o<%
} eO<:X|9T
} ZUE?19GA
8GC(?#Kb
c o}o$}
Java Applet f#9DU}2m
Java Applet用于HTML文件。 ^"Y5V5
8!e1T,:b
HTML代码: RJMrSz$
h9Zf4@w
<HTML> B5%N@g$`j
<HEAD> P<@Yux#
<TITLE>Hello World</TITLE> NNUm=g^
</HEAD> !wl3}]q
<BODY> 0Me*X
wr\d5j
HelloWorld Program says: @WuB&uF=d
=1D* JU
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> "D V.%7*^
</APPLET> 3e)3t `
lH_S*FDa
</BODY> I<Vh
Eo,
</HTML> ^s'ozCk 0
0q_Ol]<V
Java代码: eit>4xMu
P<iS7Ys+
import java.applet.*; V+A1O k)
import java.awt.*; Z4#lZS`'A
aOYRenqu
public class HelloWorld extends Applet 0-dhGh?.
{ }<Y3jQnl
public void paint(Graphics g) &HKrmFgX{
{ m9^?p
g.drawString("Hello, world!", 100, 50); #+Lo&%p#3
} r1cB<-bJ#'
} +M9=KVr
~+q1g[6
)vp0X\3q`
java script S,Y|;p<+^
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。 gQ1obT"|
+H)'(<
<script language="java script"> r*X,]\V0x
function helloWorld() |)-kUu
{ |3H+b,M5
alert("Hello World"); u-_r2U
} pLMt2G
</script> Oy6fl'FIt
@MW@mP)#
<a href="java script:this.location()" n 8cA8<
onclick="java script:helloWorld();">Hello World Example</a> &q