“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。 B:"D)/\
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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(`]hH0;T
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以下是用不同语言写成的Hello World程序的几个例子: c6:uM1V{
Ada IHEbT
with Ada.Text_Io; use Ada.Text_Io; XUP{]w`.Z
procedure Hello is HT.,BF
begin =;Q/bD->
Put_Line ("Hello, world!"); $z$^
yjL
end Hello; $@Vn+|
Ix
yY8zTWji_
Qz@_"wm[
汇编语言 KYiJXE[Q-
nD5wN~[J
x86 CPU,DOS,TASM @r GY9%E
MODEL SMALL %IO*(5f
IDEAL 4Fp[94b
STACK 100H DdR0u0JH0
UwUHB~<oE
DATASEG Zn9u&!T&
HW DB 'Hello, world!$' Wc@
,#v
h7Uj "qH
CODESEG ?s2-iuMPd
MOV AX, @data T<*)Cdid
MOV DS, AX 94B%_
MOV DX, OFFSET HW KS*,'hvY
MOV AH, 09H 5t%8y!s
INT 21H Fip
5vrD
MOV AX, 4C00H l,o'J%<%
INT 21H 1m5l((d
END Ey7zb#/<!
WWpMuB_G
%_|KiW
x86 CPU,GNU/Linux,NASM Hhtl~2t!0
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). D&FDPaJM
;Enter this into "hello.asm" then type: Q"I(3 tp9[
;"nasm -f elf hello.asm" bUcp8
;"ld hello.o -o hello" )%^l+w+&
;"./hello" h\!8*e;RAW
G' U_I
section .data ;data section declaration 6/<Hx@r (
msg db 'Hello World!',0AH 0d+n[Go+S
len equ $-msg ;string length f&CQn.K"
O[d#-0s
section .text ;code section declaration gY7sf1\wX
global _start ;entry point (start of execution) EK# 11@0%
_start: mov edx,len ;string length Phi5;U!
mov ecx,msg ;string start QD7KE6KP'
mov ebx,1 ;file handle: stdout 4`8s]X
mov eax,4 ;sys_write M0$MK>
int 80h ;kernel system call %np(z&@wi
"s|P,*Xf
mov ebx,0 ;return value 3VLwY!2:
mov eax,1 ;sys_exit ?kR1T0lKkE
int 80h ;kernel system call NFTv4$5d
~HIj+kN
e :HORc~U
x86 CPU,Windows,MASM32 \a+Q5g
.386 8-@@QZ\N
.model flat,stdcall *+rfRH]a
option casemap:none A O5&Y.A#
;Include 文件定义 |tAkv
include windows.inc ) p>Cf_[.
include user32.inc s4|tWfZ
includelib user32.lib 9`Qa/Y!
include kernel32.inc :!_l@ =l
includelib kernel32.lib 8gavcsVE[
;数据段 0U7Gl9~
.data .F,l>wUNe
szCaption db 'A MessageBox!',0 zg ,=A?
szText db 'Hello,world!',0 "SN*hzs"]`
;代码段 AO8 #l
YP?
.code c>$d!IKCL
start: ?1L<VL=b
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK _GkLspSaU
invoke ExitProcess,NULL }K?b2 6`
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ;t*SG*Vi
end start Gy\]j
(l%?YME
}<~(9_+
AWK <%YW/k"o
BEGIN { print "Hello, world!" } `<g]p-=":
PPl o0R
t*= nI $
BASIC >c_fUX={
传统版BASIC(例如GWBASIC): U@q5`4-!8
)jXKPLj
10 PRINT "Hello, world!" :h(RS ;
20 END D9TjjA|zS
(eF[nfM
或在提示符输入: QcrhgR
'ge$}L}4
?"Hello, world!":END 9C)VW
f_)#
现代版BASIC(例如Quick BASIC): el2Wk@*
6hj[/O)E
Print "Hello, world!" Y-bTKSn
?;oJ=.T
以下的语句在Quick BASIC中同样有效: w=]A;GgA
[z"E"_r~%Y
? "Hello,world!" ?;o0~][!
[;{xiW4V]
I=dn]}b#P
BCPL {d<XDx4`
GET "LIBHDR" 0UJ6>Rj
hrnE5=iY
LET START () BE &jY|
:Fe
$( %T$>E7]!
WRITES ("Hello, world!*N") Je|:\Qk
$) ?GH/W#{o)
x%s1)\^A
.tKBmq0xo"
Befunge Xps
\+l%i
"!dlrow olleH">v YZ<zlU
, qeFaY74S
^_@ 4AzDWK@/
,Z
@I"&H
eyh}O
Brainfuck 0rL.~2)V
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Lxv;[2XsW)
+++++++++++++++.>.+++.------.--------.>+.>. JkN*hm?
r-YJ$/J
7vXP|8j
C ll0y@@Iy
#include <stdio.h> C-A?
mIC
8Tg1 >q<
int main(void) K !ILO
{ 3Qd/X&P
printf("Hello, world!\n"); TO]7cC
return 0; }J6:D]Q
} hiibPc?I
z2{y<a9;?
mKu,7nMvF
C++ -BP10-V
#include <iostream> Ms +ekY)
OIj.K@Kr
int main() V'#R1 x"3
{ 7k,BE2]"
std::cout << "Hello, world!" << std::endl; q)9n%- YgP
return 0; 2FaCrc/
} x2t&Wpvt
0^tY|(b3/M
05{}@tW-
C++/CLI =v^#MU{k?
int main() C-S>'\|8
{ k62s|VeU
System::Console::WriteLine("Hello, world!"); C)R hld
} }F0<8L6%
= r/8~~=
,,G"EF0A
C# (C Sharp) ?\8
class HelloWorldApp I5E=Ujc_
{ 4Cu\|"5)
public static void Main() d:|x e :
{ C{$iuus0
System.Console.WriteLine("Hello, world!");
3#$X
} R~iv%+
} IagM#}m@
B-_b.4ND)
]B;`Jf
COBOL OS`jttU@
IDENTIFICATION DIVISION. l'q%bi=f
PROGRAM-ID. HELLO-WORLD. Wk7E&?-:6
@Ol(:{<
ENVIRONMENT DIVISION. y+k^CT/u
P<Bx1H-z-
DATA DIVISION. vGlVr.)
(/<Nh7C1c
PROCEDURE DIVISION. pt"9zkPj
DISPLAY "Hello, world!". T0dD:s N
STOP RUN. ~n@rX=Y)]0
z H-a%$5
'WhJ}Uo\
Common Lisp O'IU1sU
(format t "Hello world!~%") Q<u?BA/
:8eI_X
?R)dxuj
DOS批处理 x5MS#c!7
@echo off czIAx1R9
echo "Hello, world!" [m{sl(Q
{ rLgyrj$
xE;O =mI
Eiffel b
MD|
class HELLO_WORLD ^?H|RAp
$m#^0%
creation dq.U#Rhrx
make v=iiS}s
feature Lfi6b%/z
make is .Ja].hP
local Z5(9=8hB/
io:BASIC_IO X-nC2[tu'W
do mj$Ucql
!!io X uE: dL?
io.put_string("%N Hello, world!") 1|4,jm $
end -- make 3%5YUG@
end -- class HELLO_WORLD R+NiIoa
Ws|`E`6O
P#!N
Erlang DFWO5Y_
-module(hello). h_#=f(.'j
-export([hello_world/0]). b9X*2pnWJ
aR6F%7gvz
hello_world() -> io:fwrite("Hello, World!\n"). uU3A,-{-
,.0bE
9\o
`WXlq#:K
Forth h-1?c\Qq:
." Hello, world!" CR =3(Auchl$Y
ou-UR5
l90"1I A
Fortran :!g|pd[{ag
WRITE(*,10) v
=y
2
10 FORMAT('Hello, World!') R`c[?U
STOP DNq(\@x[!
END s*la`(x
u*Xp%vNe
&
V>rq'~;
HTML Gqd|F>
<HTML> (&eF E ;c
<HEAD> t}_ #N'`
<TITLE> Hello World! </TITLE> Godrz*"
</HEAD> =W3
K6w
<BODY> rWL;pM<
<p>Hello World!</p> ) %Fwfb
</BODY>
lvWwr!w
</HTML> 24#qg'
L>~Tc
)L:e0u
HQ9+ 1X5g(B
H <EUR:
^C'0Y.H S
A/<u>cCW
INTERCAL ]7Vg9&1`
PLEASE DO ,1 <- #13 m4@NW*G{
DO ,1 SUB #1 <- #238 K2M=)B
DO ,1 SUB #2 <- #112 =D$ED^W
DO ,1 SUB #3 <- #112 P!|Z%H
DO ,1 SUB #4 <- #0 PX|@D_%Y=
DO ,1 SUB #5 <- #64 &$/
#"lW,V
DO ,1 SUB #6 <- #238 d)vP9vXy
DO ,1 SUB #7 <- #26 oV:oc,
DO ,1 SUB #8 <- #248 K#Ck,Y"
DO ,1 SUB #9 <- #168 lcZ.}
DO ,1 SUB #10 <- #24 DO80HS3ZD
DO ,1 SUB #11 <- #16 Ll|_Wd.K,
DO ,1 SUB #12 <- #158 `?Q
p>t
DO ,1 SUB #13 <- #52 (|^m9v0:
PLEASE READ OUT ,1 QKj0~ia
5
PLEASE GIVE UP HGGq;Nbm
`RnWh9
'3672wF/
Java Ldjz-
public class Hello S/5QK(XLC)
{ nFn!6,>E
public static void main(String[] args) z;S-Q,
{ 3>1^$0iq
System.out.println("Hello, world!"); nf
/*n
} p?Azn>qBa
} lNL=Yu2p_
EB*sd S
2;
^ME\
JSP 2HFn\kjj.s
<% 1'<C-[1
out.print("Hello, world!");
Bx#i?=*W
%> .}!.4J%q2
7_i8'(``
Kb?{^\FiU
MIXAL mF*x&^ie
TERM EQU 19 the MIX console device number ~+dps i
ORIG 1000 start address ?+d`_/IB
START OUT MSG(TERM) output data at address MSG U0_^6zd_
HLT halt execution 0M HiW=
MSG ALF "MIXAL" T-%=tY+-
ALF " HELL" Eu?z!
ALF "O WOR" |EE1S{!24m
ALF "LD " 6^Wep- $
END START end of the program &|>~7(
i
6G40!G=)
_!',%+
Nuva yU
v
YV-7
<..直接输出..> C.jWT1
Hello, world! f,HUr% @
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`3[
<..或者..> =hKAwk/^
'{d@Gc6.
<. B'}?cG]
// 不带换行 p)IL(_X)
? "Hello, world!" +x"uP
FRd"F$U
// 或者 ^AP8T8v
_nbr%PD,
// 带换行 aZA``#p+
?? 'Hello, world!' ]1!" q40)]
.> sW[-qPK<
jfuHZ^ YA
qE~_}4\Z9
OCaml AYbO~_a\N
let main () = eQbHf
print_endline "Hello world!";; <>3)S`C`p
IO+]^nY`
qNEp3WY:
Pascal 6z 9
'|;,4
program Hello; TQ4@|S:OF
begin `$T$483/
writeln('Hello, world!'); I'uwJy_I\
end. Z4] n<~o
-* ,CMw
$O%{l.-O
Perl nYyhQX~]B
#!/usr/local/bin/perl rpT.n-H>%A
print "Hello, world!\n"; L80(9Y^xn
~Bzzu %S
p>B2bv+L
PHP 8 t5kou]h
<?php 11=$]K>
print("Hello, world!"); EA& 3rI>U)
?> j#](Q!
i5 rkP`)j
gfQ?k
Pike iEvQ4S6tD
#!/usr/local/bin/pike U[C4!k:0
int main() ;m(iKwDt
{ ^dQ{vL@9b9
write("Hello, world!\n"); Zl9@E;|=
return 0; 0xB2
} Qz~uD'Rs/
i>F=XE
3P
cVE\GN
PL/I }|P3(*S
Test: procedure options(main); @UD:zUT)F
declare My_String char(20) varying initialize('Hello, world!'); ~r --dU
put skip list(My_String); W:]FYC
end Test; UnhVppnex
3A#Tn7
GShxPH{_j
Prolog z5>I9R^q;
goal H71sxek3
write("hello,world!"). "`vRHeCKN
!/zRw-q3B
(
ayAP
Python [?!I*=*b
#!/usr/local/bin/python 6}4})B2
print "Hello, world!" wcGK*sWG-
S#/%#k103
*pKTJP
REXX g68p9#G
say "Hello, world!" 3A7774n=P
mayJwBfU
lE:g A,
Ruby
cw Obq\
#!/usr/bin/ruby aB]0?C y9(
print "Hello, world!\n" 4DA34m(
~^mUu`@r
[{x}# oRSE
Scheme pCIzpEsRs
(display "Hello, world!") %$!3Pbui
(newline) ag=d6q
Rr)+M3'
Jz@~$L
sed (需要至少一行输入) ?8b19DMK6
sed -ne '1s/.*/Hello, world!/p' !|cg=
yeo&Qz2vU
P?54"$b
Smalltalk +EETo):
Transcript show: 'Hello, world!' FcDS*ZEk!
8t-GsjHb
FKa";f"
SNOBOL X\|!
OUTPUT = "Hello, world!" {Cx5m
END +a1x;
0I&k_7_
^t;z;.g
SQL V2MOD{Maat
create table MESSAGE (TEXT char(15)); (Fv
tL*
insert into MESSAGE (TEXT) values ('Hello, world!'); xs$$fPAQ
select TEXT from MESSAGE; n<I{x^!
drop table MESSAGE; rwm^{Qa
_fGTTw(
x]~TGzS
Tcl w0pMH p'Y
#!/usr/local/bin/tcl W yL+HB}
puts "Hello, world!" zG!nqSDG
dAo;y.3
Rj8%% G-pt
TScript P]_d;\
!"v
? "Hello, world!" 2eT?qCxqc
{@Mr7*u
o2 14V \
Turing wX$:NOO
put "Hello, world!" (i1JRn-f
vvoxK 0
&d# R'Z
UNIX-style shell 8.E"[QktZ
程序中的/bin/sh可改为您使用的shell gYpMwC{*d
Ui{%q@
#!/bin/sh v3tJtb^'!
echo 'Hello, world!' bOS)vt*V
% RSZ.
<n"BPXF~
GUI D #ddx
QLA.;`HIE
Delphi bz>X~
program HelloWorld; { _rfhz
uses $6hPTc<C
Dialogs; =YO ]m<
begin 5j%G7.S\
ShowMessage('Hello, World!'); \l%xuT
end. ~E<2gMKjO
LF<&gC
cTqkM@S
Nuva SC{m@
<. 1J@Iekat
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) vqf$("
.> tYS4"Nfb+
U,
6iT
ZzT=m*tQ&
Visual Basic s='+[*&&
MsgBox "Hello, world!" DL]tg[w{
'或者 pl[J!d.c
Print "Hello, world!" "
\$^j#o
}[*'
<=uYfi 3,
Visual FoxPro D28`?B9(
? "Hello, world!" 8%@|/
OMGggg
G=dzP}B'WA
X11 $Y$9]G":
用一个程序 0}{xH
NE995;
xmessage 'Hello, world!' iyskADS
s?SspuV
用C++和gtkmm 2 x 3@-E
ao(T81
#include <iostream> ~MpikBf
#include <gtkmm/main.h> ;"3B,Yj
#include <gtkmm/button.h> jYsAL=oh,*
#include <gtkmm/window.h> c/{FDN
using namespace std; XQ}Zr/f6
Fsx?(?tCMo
class HelloWorld : public Gtk::Window 4
1_gak;
{ *O?c~UJhhV
public: _n&Nw7d2
M
HelloWorld(); ngY%T5-
virtual ~HelloWorld(); N<EVs.7
protected: w =^.ICyb@
Gtk::Button m_button; UZZJtQt
virtual void on_button_clicked(); 9KSi-2?H
}; _IH" SVub
g 7oY 1;
HelloWorld::HelloWorld() : m_button("Hello, world!") DwD$T%kF
{ |HazM9=
set_border_width(10); 74s{b]jN'-
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); @hLkU4S
add(m_button); Cs $5Of(
m_button.show(); {]vD@)k
} >1y6DC
jDzQw>TX
HelloWorld::~HelloWorld() {} 1Pf(.&/9_
S_}`'Z )
void HelloWorld::on_button_clicked() Cj5mM[:s
{ :<%bAn
cout << "Hello, world!" << endl; t=_^$M,yr
} lQA5HzC\
50UdY9E_v}
int main (int argc, char *argv[]) #6sz@X fV
{ *zfgO pK
Gtk::Main kit(argc, argv); \l+v,ELX=
HelloWorld helloworld; _03?XUKV
Gtk::Main::run(helloworld); 6&3,fSP
} !,4ag1
_Hb;)9y
:1v,QEb\
Java |rm elQ-
import java.awt.*; 4=PjS<Lu8
import java.awt.event.*; CB@7XUR
:qYp%Ub
public class HelloFrame extends Frame
~zp8%lEe
{ "TRS(d|3
HelloFrame(String title) E&[5b4D@<
{ 7]{g^g.9-
super(title); 9+.wj/75
} nhI+xqfn
public void paint(Graphics g) P<<$o-a"
{ #h5:b`fDF
super.paint(g); A|A~$v("R
java.awt.Insets ins = this.getInsets(); HDVimoOq
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); bMH~vR
} y@P%t9l
public static void main(String args []) De $AJl
{ "W<Y1$Y=Y
HelloFrame fr = new HelloFrame("Hello"); 'uPAG;)m
P5S]h
fr.addWindowListener( '3.\+^3
new WindowAdapter() #A63?kDE&&
{ 8-$t7bV5
public void windowClosing(WindowEvent e) ?W/.'_
{ _k84#E0
System.exit( 0 ); &|>@K#V8-;
} 9u=A:n\
} 4;`z6\u9-
); ~/OY1~c
fr.setResizable(true); w$2q00R>
fr.setSize(500, 100);
'g v0;L
fr.setVisible(true); \ovs[&
} f}otIf
} vEv kC
m*0YMS>Y |
7vRtTP
Java Applet bzN[*X|
Java Applet用于HTML文件。 5#Er& 6s
}~FX!F#oU
HTML代码: c-Gp|.C
gF6> /
<HTML> 0b&