“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。 67VL@ ]
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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》。 \jh'9\
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以下是用不同语言写成的Hello World程序的几个例子: +"x,x
Ada 3("_Z%
with Ada.Text_Io; use Ada.Text_Io; mkMq
procedure Hello is lyIl-!|
begin eds o2
Put_Line ("Hello, world!"); cT<1V!L4
end Hello; %huRsQ%}
+Um( h-;
*e<[SZzYZ
汇编语言 G(Lzf(
o#;b
x86 CPU,DOS,TASM t,QyfN
MODEL SMALL bT\1>
IDEAL ]}*R| 1
STACK 100H IW>T}@
|
_?<|{O
DATASEG .nB0 h
HW DB 'Hello, world!$' 5BWH-2HsB
qJ;jfh!
CODESEG -jW.TT h]
MOV AX, @data hwu]Er.gn
MOV DS, AX RdWRWxTn8+
MOV DX, OFFSET HW Ed"h16j?z
MOV AH, 09H F{Z~ R
INT 21H .GV;+8HzS
MOV AX, 4C00H zepm!JR1
INT 21H S-P/+K6
END e_#._Pi
8hXl%{6d3
?u-|>N>
x86 CPU,GNU/Linux,NASM PbW(%7o(t
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). =V-A@_^!c
;Enter this into "hello.asm" then type: o%v0h~tn
;"nasm -f elf hello.asm" uH/J]zKR
;"ld hello.o -o hello" ,3?Q(=j
;"./hello" S\4tzz @
B&\IGWG(
section .data ;data section declaration 0Z~p%C<LW
msg db 'Hello World!',0AH Z?}dq-Vh&
len equ $-msg ;string length 'w!Cn>
8?J&`e/
section .text ;code section declaration ZU85P0
global _start ;entry point (start of execution) V}bjK8$$
_start: mov edx,len ;string length 4\y/'`xm)6
mov ecx,msg ;string start 2w59^"<,
mov ebx,1 ;file handle: stdout mlixIW2
mov eax,4 ;sys_write ?a8^1:
int 80h ;kernel system call }0eF~>Df
y6LWx:
mov ebx,0 ;return value lH-/L(h2
mov eax,1 ;sys_exit Z9:-rcr
int 80h ;kernel system call ?$vCW|f
[OM7g'?S0
o1Ph~|s*8
x86 CPU,Windows,MASM32 e]`[yf
.386 G.rrv
.model flat,stdcall K17j$o^6KK
option casemap:none , 0imiv
;Include 文件定义 $@"l#vJPfc
include windows.inc { WIJC',Y
include user32.inc g>Y|9Y
includelib user32.lib UADFnwR[R
include kernel32.inc Q(lo{AFc
includelib kernel32.lib K&bzDzd `
;数据段 4NGA/
G
.data fhar&\;S
szCaption db 'A MessageBox!',0 /h+8A',
szText db 'Hello,world!',0 s1=X>'q
;代码段 O/,aJCe
.code [p{#XwN
start: s8wmCzB~
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK PRr2F-!P
invoke ExitProcess,NULL ]gmexa=(i
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> xgbJ2Mh
end start {kp"nl$<
:axRoRg
xGu r
AWK 8JM&(Q%#
BEGIN { print "Hello, world!" } 8C[C{qOJ
nTuJEFn{
}'""(,2
BASIC ,-izEr
传统版BASIC(例如GWBASIC): D&/kCi= R
}vZ+A
10 PRINT "Hello, world!" ' qWALu
20 END HGXt
X*M#FT-
或在提示符输入: d`P7}*;`
>xF/Pl
?"Hello, world!":END \Z]UA&v_
eAXc:222
现代版BASIC(例如Quick BASIC): v\!Be[ ?
bvS(@
Print "Hello, world!" /`f^Y>4gD
B-.gI4xa
以下的语句在Quick BASIC中同样有效: 0ZBJ~W
M:-.o
? "Hello,world!" <Fi%iA
MNC*Glj=
CsTF
BCPL bLe<G
GET "LIBHDR" ,8:(OB|a
>_o}
LET START () BE &QDW9
Mi
$( E_k$W5
WRITES ("Hello, world!*N") 'SCidN(n
$) ~Q?a|mV,
WOQP$D9
K <pV
Befunge hCCiD9gz
"!dlrow olleH">v y=`2\L" O
, N$h{Yvbn
^_@ &0NFb^8+
'XZ)!1N
O$IEn/%+
Brainfuck T?
tG~
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< j:k[90
+++++++++++++++.>.+++.------.--------.>+.>. '`eO\huf
Qk\A
c
\=uKHNP?#
C ?*E'^~,H)
#include <stdio.h> t"k*PA
?mWw@6G,
int main(void) q8^^H$<Db
{ %F!1
printf("Hello, world!\n"); jgbLN/_{
return 0; G>wqt@%r9
} hvA^n@nr
lz"OC<D}(
c/zJv*}x?
C++ WpF2)R}G=
#include <iostream> +)j$|x~(A
c%&:6QniZ
int main() !'mq ?C=
{ MKy[hT:
std::cout << "Hello, world!" << std::endl; +w.JpbQ&
return 0; >c9a0A
} nx8a$vI-TY
m\$\ 09
&m|wH4\
C++/CLI AT9q3
int main() T-5nB>)
{ 1jN-4&
System::Console::WriteLine("Hello, world!"); hg+X(0
} UG)8D5
QS{1CC9$
TYJ:!
C# (C Sharp) 3~}uqaGt
class HelloWorldApp 2'_:S@
{ Z$0uH* h
public static void Main() Fb7#<h
{ TQx.KM>y
System.Console.WriteLine("Hello, world!"); IG|X!l
} Au4yBm
u
} r41\r,`Dj
ag*mG*Z
:cq9f2)
COBOL EX?MA6U
IDENTIFICATION DIVISION. ^1Zeb$Nw'
PROGRAM-ID. HELLO-WORLD.
/o[?D
wQwQXNG
ENVIRONMENT DIVISION. .a._NW
~v]!+`_J
DATA DIVISION. cfcim.jB
7N:Y?Hi\
PROCEDURE DIVISION. po$ /7
DISPLAY "Hello, world!". "\}@gV#r$A
STOP RUN. xER\ZpA:,
-[6z 1"*
$% 1vW=d
Common Lisp %n
hm
(format t "Hello world!~%") yto,>Utzg
WAn~+=Ax
B>GE9y5
DOS批处理 =0G!f$7^i
@echo off qe!fk?T}
echo "Hello, world!" =Qgt${|
qIY~dQ|
H63,bNS s
Eiffel \/1<E?Q
f
class HELLO_WORLD Td G!&:>
/c2w/+ _
creation ]3g?hM6
make E I:w
aIr
feature D3)zk@N
make is mml<9fbH
local 6(G?MW.
io:BASIC_IO %*&UJpbA
do q-c=nkN3
!!io i K12pw
io.put_string("%N Hello, world!") S(uf(q|{
end -- make #m[|2R
end -- class HELLO_WORLD gFHTG
,4ei2`wV
"g'jPwFG
Erlang J41G&$j(
-module(hello). 9nH?l{As
-export([hello_world/0]). <
V\I~;
(rkU)Q
hello_world() -> io:fwrite("Hello, World!\n"). wc!onZX5
L+'Fs
{W]=~*w
Forth ]79:yMD~ba
." Hello, world!" CR b^p"|L
fH)YFn/
D<Zp!J1o
Fortran IdXZoY
WRITE(*,10) I =1+h
10 FORMAT('Hello, World!') /w]!wM
STOP <<i3r|}
END BM(]QUxRd
7c~u=U"
+reor@h
HTML 5!EJxP9
<HTML> v@wb"jdFi$
<HEAD> [+OnV&
<TITLE> Hello World! </TITLE> D<V~f B
</HEAD> =e8bNg
<BODY>
2'5 ]~
<p>Hello World!</p> vq!_^F<
</BODY> 7f~Sf
</HTML> _L@2_#h!
*P#WDXRwd
?}m']4p
HQ9+ Q4*fc^?u
H
jq+A-T}@
$d,0=Ci
lhtZaU~V
INTERCAL A0fFv+RN3
PLEASE DO ,1 <- #13 (sQr X{~
DO ,1 SUB #1 <- #238 I(9R~q
DO ,1 SUB #2 <- #112 "h|'}7p
DO ,1 SUB #3 <- #112 9Ffp2NW`;
DO ,1 SUB #4 <- #0 ;q:jl~
DO ,1 SUB #5 <- #64 ?gwUwOV"
DO ,1 SUB #6 <- #238 !vk|<P1
DO ,1 SUB #7 <- #26 mWyqG*-Hb
DO ,1 SUB #8 <- #248 #vzEu
)Ul
DO ,1 SUB #9 <- #168 <D::9c j
DO ,1 SUB #10 <- #24 H_0/f8GwnG
DO ,1 SUB #11 <- #16 *FmTy|
DO ,1 SUB #12 <- #158 8X I?
DO ,1 SUB #13 <- #52 IN,(yaC
PLEASE READ OUT ,1 v$=QA:!U
PLEASE GIVE UP P0$e~=Q^4
,9P:Draxs`
ixV0|P8,c
Java P|HKn,ar
public class Hello i,|0@Vy
{ OQ,NOiNkap
public static void main(String[] args) ?_v{|
YI=
{ V13BB44
System.out.println("Hello, world!"); @c~)W8
} RGK8'i/X
} Q6XRsFc
a&k_=/X&
r%e KFS
JSP XfKo A0
<% V~
TWKuR
out.print("Hello, world!"); TO-nD>
%> YFTjPBV
fPR$kch
W$'R}L
MIXAL [2dn\z28
TERM EQU 19 the MIX console device number (E,Yo
ORIG 1000 start address Raw)9tUt
START OUT MSG(TERM) output data at address MSG z.6$W^
HLT halt execution Gdg)9
MSG ALF "MIXAL" HXoX
ALF " HELL" b]7GmRekl
ALF "O WOR" /RyR>G!
ALF "LD " ?h0X,fl3
END START end of the program $-&BB(-{E&
#_B-4sm
[y0O{,lI
Nuva HBY.DCN[Z
<..直接输出..> 2 QNNp:`6
Hello, world! J-ePE7i
o=RM-tR`v
<..或者..> T2D<UhP
w ~ dk#=
<. .)+hH y
// 不带换行 Z lHDi!T
? "Hello, world!" 0Hs|*:Y1D
S=xA[%5
// 或者 iL=
m{
[lk'xzE
// 带换行 "7v-`i
?? 'Hello, world!' k@ K7yK
.> KE1ao9H8wR
zh$}~RG[
l?iSxqdT
OCaml oxj3[</'k
let main () = a"av#Y
print_endline "Hello world!";; i_kE^SSgm
0I{gJSK.,
tV9LD>3
Pascal ](B@5-^
program Hello; $O{duJU
begin s!9dQ.
writeln('Hello, world!'); kqb0>rYa
end. O8]'o*<]
OgcHS?
\j2;4O?`
Perl h b/]8mR
#!/usr/local/bin/perl NjE</Empb%
print "Hello, world!\n"; v?c 0[+?
g}f9dB,F
Bk}><H
PHP dtPoo\@
<?php "Pl9 nE
print("Hello, world!"); ;Efcw[<
?> vfB2XVc
KvQ,;A
+x]9+D&
Pike azP+GM=i7
#!/usr/local/bin/pike >23-
int main() efG6v
{ "C?5f]T
write("Hello, world!\n"); AkU<g
return 0; ?%O3Oi Xz
} j$da8] !
QR">.k4QJ
y{9~&r
PL/I [0OJdY4
Test: procedure options(main); $^ 'aCU0C
declare My_String char(20) varying initialize('Hello, world!'); lZ&]|*>
put skip list(My_String); AOp/d(vx5i
end Test; 0e[d=)XG
\#'TNmS
FA90`VOWYU
Prolog #,(sAj
goal q@hp.(V
write("hello,world!"). >O/D!j|
!'=15&5@
ki;UY~
Python dP]1tAO,y
#!/usr/local/bin/python { m8+Wju}
print "Hello, world!" K={qU[_O
OTB$V k
qpJ{2Q
REXX t!1$$e?`r
say "Hello, world!" 7*w VI+
rg_Q"g
"Dy'Kd%,%/
Ruby OndhLLz
#!/usr/bin/ruby `N/RHb%
print "Hello, world!\n" 6+K_ Z\
]=73-ywn]
d {2
Scheme ~e@>zoM'^
(display "Hello, world!") `A/j1UWJ
(newline) jy2IZ o
.7ayQp
/q\_&@
sed (需要至少一行输入) Hqz?E@bc@
sed -ne '1s/.*/Hello, world!/p' Wk4.%tpeO7
G+*cpn
f DgD@YC D
Smalltalk %m{U&
-(l@
Transcript show: 'Hello, world!' kJs^ z
i;PL\Er:tX
I/x iT
SNOBOL iF+RnWX\
OUTPUT = "Hello, world!" p3^jGj@
END Uf*EJ1Ei
]7AX%EG3
lz |
64J
SQL }iBC@`mg(
create table MESSAGE (TEXT char(15)); c:M$m3Cs?
insert into MESSAGE (TEXT) values ('Hello, world!'); 02JL*
select TEXT from MESSAGE; 7yI@"c#O
drop table MESSAGE; ps:f=6m2
P`1EPF
_DPOyR2
Tcl PWgDFL?
#!/usr/local/bin/tcl ;%q39U}
puts "Hello, world!" Bz2'=~J
%1McD{
ts9pM~_~
TScript ,je`YEC
? "Hello, world!" P}3}ek1Ax
GgFi9Ffj
T&"i _no*
Turing ;eB ~H[S/
put "Hello, world!" 9vGs;
f%qt)Ick
?Ce#BwQ>
UNIX-style shell vC/[^
程序中的/bin/sh可改为您使用的shell ?T:
jk4+
zjX7C~h^Q
#!/bin/sh ^DAa%u
echo 'Hello, world!' u>T76,8|\
QYE7p\
WNa0,
GUI r;cV&T/?
t]_S
Delphi :_dICxaLZT
program HelloWorld; ,i`h
x,
Rg
uses Yig0/"
Dialogs; %.x@gi q
begin 2C+(":=}
ShowMessage('Hello, World!'); 17UK1Jx,
end. $. e)
%I4zQiJ%
q@#BPu"\l
Nuva L0h
G
<. 8LM#WIm?
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) !)OB@F%U
.> /nB'kg[h\
uOk%AL>
j^u[F"
Visual Basic |DG@ht
MsgBox "Hello, world!" ]gd/}m)1
'或者 ^3I'y
UsY
Print "Hello, world!" /r$&]C:Fi
~Nh&.a
U1m\\<,
Visual FoxPro }#N]0I)JI
? "Hello, world!" o$bUY7_
B1T5f1;uY
=d20Xa
X11 pz}mF D&[
用一个程序 #+sF`qR,
0'ZYO.y
xmessage 'Hello, world!' mc@M ,2@D
{K.rl%_|N
用C++和gtkmm 2 {gkwOMW
/#q")4Mf
#include <iostream> |+ 7f2C
#include <gtkmm/main.h> Q)6va}2ai
#include <gtkmm/button.h> Kr3];(w{
#include <gtkmm/window.h> CI^|k/
using namespace std; B\<ydN
,w\ wQn>]K
class HelloWorld : public Gtk::Window 6Dzs? P
{ LDX*<(
public: Jh2Wr!5
HelloWorld(); ,nE&MeJ
virtual ~HelloWorld(); ; h+ q
protected: :0Te4UE;P7
Gtk::Button m_button; &6"P7X
virtual void on_button_clicked(); lCFU1 GHH
}; _nX%#/{
.ewZV9P)t
HelloWorld::HelloWorld() : m_button("Hello, world!") Xem| o&
{ i:Mc(mW
set_border_width(10); lBiovT
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ep?:;98|t
add(m_button); 0$Ff#8
m_button.show(); q+/l"&j.
} BjD&>gO)
EzP#Mnz^
HelloWorld::~HelloWorld() {} bXl8v
lP0k:
void HelloWorld::on_button_clicked() BMjfqX
{ i:k-"
cout << "Hello, world!" << endl; >(tO
QeN
} o>u!CL<
IA4+ad'\E
int main (int argc, char *argv[]) 9v?V
{ XtW_
Gtk::Main kit(argc, argv); F$ {4X /9n
HelloWorld helloworld; (t74a E pi
Gtk::Main::run(helloworld); 8kbBz
} Y+qus
qc-C>Ra
|BJqy/
Java x(6vh2#vD
import java.awt.*; 1~EO+
import java.awt.event.*; <JH9StGGc?
cdp{W
public class HelloFrame extends Frame w b+<a
{ W?PWJkIw
HelloFrame(String title) hT=f;6$
{ *f*f&l