“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。 76bMy4re
,PmUl=
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》。 C6EGM/m8
-#v1/L/=
以下是用不同语言写成的Hello World程序的几个例子: KF6C=,Yc%
Ada @I}VD\pF
with Ada.Text_Io; use Ada.Text_Io; N8pV[\f
procedure Hello is ; >>n#8`
begin Pz34a@%"
Put_Line ("Hello, world!"); |_+#&x
end Hello; tAE(`ow/Ur
$[}EV(#y
O2\(:tvw
汇编语言 }tw+8YWkz
7*j!ZUzp
x86 CPU,DOS,TASM zz[fkH3
MODEL SMALL =Q{?!
IDEAL i(pHJP:a:
STACK 100H h}!9?:E
E_En"r)y
DATASEG ff5 gE'
HW DB 'Hello, world!$' 'AX5V-t
g9q}D-
CODESEG 2mnAL#
MOV AX, @data &oMWs]0
MOV DS, AX M,S'4Szuk
MOV DX, OFFSET HW *2u~5Kc<
MOV AH, 09H S\h5
D2G;
INT 21H PWyf3
MOV AX, 4C00H SF&2a(~s
INT 21H D/f4kkd
END Lj(cCtb)
H)i|?3Ip
3r,~-6
x86 CPU,GNU/Linux,NASM ;RJ
8h
x
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ZaU8eg7
;Enter this into "hello.asm" then type: {@vnKyf^K
;"nasm -f elf hello.asm" pd#Sn+&rf
;"ld hello.o -o hello" 1Vdi5;dn
;"./hello" Nwz?*~1
z,4mg6gt
section .data ;data section declaration cd1G.10
msg db 'Hello World!',0AH E#!!tH`lgg
len equ $-msg ;string length }1e4u{
;5bd<N
section .text ;code section declaration ]vlBYAW'
global _start ;entry point (start of execution) E{&MmrlL,
_start: mov edx,len ;string length H:]cBk^[,
mov ecx,msg ;string start /V:9*C
mov ebx,1 ;file handle: stdout 3}<U'%sd
mov eax,4 ;sys_write 3y6\0|{1
int 80h ;kernel system call R
,qQC<
3{$7tck,
mov ebx,0 ;return value /@k#tdj
mov eax,1 ;sys_exit ![^pAEgx
int 80h ;kernel system call az6&
g w([08
Fs( PVN
x86 CPU,Windows,MASM32 7Hr_ZwO/^
.386 ![\-J$
.model flat,stdcall W~'xJ
option casemap:none RkYn6
;Include 文件定义 Q!;syJBb.
include windows.inc t` "m@
include user32.inc );h(D!D,
includelib user32.lib cdt9hH`Cd
include kernel32.inc 3&+dyhL'w
includelib kernel32.lib ZOqS"3j! j
;数据段 &2y4k"B&)
.data ]8\I{LR
szCaption db 'A MessageBox!',0 (QiA5!wg
szText db 'Hello,world!',0 LigB!M
;代码段 n" Ie>
.code aDKb78 1d
start: P9bM+@5e
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK :3n@].
invoke ExitProcess,NULL @gD)pH
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> AU$~Ap*rsa
end start |6*Bu1
TVD~Ix
m}uOBR+
AWK `N *:,8j
BEGIN { print "Hello, world!" } XMuZ}u[U
[Cl0Kw.LD
(' 5?-
BASIC R&Y_
传统版BASIC(例如GWBASIC): g#J aw|N
y&zFS4"x
10 PRINT "Hello, world!" mVZh_R=a
20 END zFq%[ X
=%X."i1A
或在提示符输入: N'v3
|g
R |c=I}@F
?"Hello, world!":END r)iEtT!p*
uQ5h5Cfz
现代版BASIC(例如Quick BASIC): fg^25g'_
*,\"}x*
Print "Hello, world!" G)Gp}4gV}
c@t?R$c
以下的语句在Quick BASIC中同样有效: =Zq6iMD
1>J.kQR^
? "Hello,world!" }`"}eN @,
~Ru\Z-q1
: ,l7e
BCPL GJ,&$@8)
GET "LIBHDR" PM\Ju]
=_dM@ j
LET START () BE .k,j64
r
$( cE]z Tu?!
WRITES ("Hello, world!*N") 4[gmA
$) Je6[q
\=ML*Gi*
#fuUAbU0X
Befunge ,{_i{WV
"!dlrow olleH">v 75# 8P?i
, jrib"Bh3,
^_@ pbVL|\oB}
F9r.DG$}
X1^VdJE
Brainfuck yfG;OnkZ
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< T~[:oil
+++++++++++++++.>.+++.------.--------.>+.>. aCG rS{
`|'w]rj:"+
C >*z^6Gz
C F!vrvlD`s
#include <stdio.h> J>Ar(p
W'./p"2g
int main(void) fs!dI
{ h.\I
tK{)
printf("Hello, world!\n"); hfwJZ\_60
return 0; k~tEUsv
} P6gkbtg
*rq*li;
)d3
09O
C++ HMq}){=S
#include <iostream> T)! }Wvv
kF|$oBQ
int main() 8~'cP?
{ %K Q1{"
std::cout << "Hello, world!" << std::endl; lx`?n<-X
return 0; `cGks
} @@Q4{o
mY 1l2
fQoAdw
C++/CLI B7\4^6Tx
int main() v`S5[{6
{ /$; Z ~^P
System::Console::WriteLine("Hello, world!"); %xgP*%Sv2
} uX7L1~s-
ZX_QnSNZ?
(TeH)j!
C# (C Sharp) q`e0%^U
class HelloWorldApp SgU@`Pb
{ x^y$ pr
public static void Main() !@z9n\Yj
{ Y9abRrK
System.Console.WriteLine("Hello, world!"); [<B,6nAl
} e#}t
am
} ZcA"HD%
]yOM
ev&l=(hY
COBOL gc4o
|x
IDENTIFICATION DIVISION. $
DN.
PROGRAM-ID. HELLO-WORLD. 'M%iS4b{IM
lg|6~=aQ
ENVIRONMENT DIVISION. )QAYjW!Z
IQBL;=.J.
DATA DIVISION. DS8HSSD
orJ|Q3c)d
PROCEDURE DIVISION. r,eH7&P9{
DISPLAY "Hello, world!". `
k]
TOc
STOP RUN. {r&r^!K;
P.(UbF d'
C5=^cH8
Common Lisp u&y> '
(format t "Hello world!~%") j Hq+/\
4H;g"nWqO
wW TuEM
DOS批处理 d^'_H>x
@echo off &Zz&VwWR
echo "Hello, world!" )+FnwW
H8HH) ^
Mx}r! Q
Eiffel 0yjYjIk"T
class HELLO_WORLD +^:uPW^U
T#E{d
creation X'd\b}Bm
make s\'t=}0q
feature UHJro9
make is \1R*M
local PR;Bxy
io:BASIC_IO jhT/}"v
do .WglLUJ:Z
!!io ?(s9dS,7wZ
io.put_string("%N Hello, world!") :Nz
TEK
end -- make aeMj4|{\
end -- class HELLO_WORLD ^Oj^7.T+
L `2{H%J`
dnANlNMk?
Erlang xqT} 9,
-module(hello). BDp(&=ktq
-export([hello_world/0]). :4:U\k;QwA
lyowH{.N"3
hello_world() -> io:fwrite("Hello, World!\n"). ^g'uR@uU
Y}vV.q
P EzT|uY
Forth 0>,i]
|Y
." Hello, world!" CR Xk^<}Ep)c
h\C1:0x{
jp-(n z\
Fortran be6`Sv"H
WRITE(*,10) !ggHLZRlz
10 FORMAT('Hello, World!') $jC+oYXj
STOP $SLyI$<gP
END Y(JZP\Tf_N
wC1)\ld
$9@Z\0
HTML
zll?/|%
<HTML> _=w=!U&W
<HEAD> &S^a_L:
<TITLE> Hello World! </TITLE> ?r0>HvUf!l
</HEAD> BQMo*I>I
<BODY> 4YMUkwh
<p>Hello World!</p> ,|O|gh$s
</BODY> Ze`ms96j{
</HTML> >wV2` 6
]{-ib:f~
xG%O^
HQ9+ `yXHb
H yX\~{%
r^d:Po
q_6<}2m,U
INTERCAL e<{Ani0
PLEASE DO ,1 <- #13 S?H
qrf7<
DO ,1 SUB #1 <- #238 A*{V%7hs&
DO ,1 SUB #2 <- #112 $+
\JT/eG9
DO ,1 SUB #3 <- #112 uoY]@.
DO ,1 SUB #4 <- #0 h*NBSvn
DO ,1 SUB #5 <- #64 6r5<uZ9w_X
DO ,1 SUB #6 <- #238 \T!tUd
DO ,1 SUB #7 <- #26 +_fxV|}P
DO ,1 SUB #8 <- #248 w##$SaTI
DO ,1 SUB #9 <- #168 LZpqv~av
DO ,1 SUB #10 <- #24 J16(d+
DO ,1 SUB #11 <- #16 $T'lWD *
DO ,1 SUB #12 <- #158 ^^*dHWHn<
DO ,1 SUB #13 <- #52 E7Pz~6
PLEASE READ OUT ,1 nrZZk QNI
PLEASE GIVE UP JLxAk14lc
P_c9v/
X04JQLhy"
Java z`@|v~i0`
public class Hello )6-!,D0 db
{ #.W<[KZf
public static void main(String[] args) (^Hpe5h&
{ k'{Bhi4
System.out.println("Hello, world!"); &qFy$`"
} }W* q
} $~.'Tnk)
}Ias7d?re
[[0u|`T/
JSP 6M_,4>
-
<% |Xk>a7X
out.print("Hello, world!"); ~Wj.
4b*
%> 6<C|O-
vqJjAls
Dj@7vM%_
MIXAL w+3-j
TERM EQU 19 the MIX console device number {`1gDKH
ORIG 1000 start address ^NiS7 )FX
START OUT MSG(TERM) output data at address MSG b$1W>
HLT halt execution 3N 5b3F
MSG ALF "MIXAL" <%]i7&8|
ALF " HELL" c'~6 1HA<
ALF "O WOR" q'[q]
ALF "LD " ?Q%X,!~\:
END START end of the program u IGeSd5B
Z |CL:)h
#Rcb
iV*M
Nuva |.Y}2>{
<..直接输出..> KI{B<S3*Z
Hello, world! jUCrj'
vCS D1~V_
<..或者..> f+Ht
`8D}\w<eI
<. xF8^#J6>
// 不带换行 GY,HEe]2r
? "Hello, world!" tjTnFP/=
HTU?hbG(
// 或者 +:?"P<'
e$ {Cf
// 带换行 7$u}uv`j
?? 'Hello, world!' ^6(Nu|6\@
.> I[v6Y^{q
>")<pUQ
I8:A]
OCaml 6<h
==I
let main () = HJeZm
print_endline "Hello world!";; ^TF71uo
$(8CU$gi=
Z0I>PBL@l
Pascal <@z!kl
program Hello; ?(d<n
begin JcDcYB
writeln('Hello, world!'); )eaEc9o>
end. :@8N${7`$A
2jiH&'@
Qaeg3f3F3
Perl wYAi-gdOi
#!/usr/local/bin/perl 70BLd(?
print "Hello, world!\n"; $"[5]{'J
zt|DHVy
qRnD{g|{1
PHP |`,AAa
<?php m#.N
print("Hello, world!"); g#/"3P2H
?> |b'}.(/3i
X&14;lu%p
j| Hyv{sM
Pike 9H#;i]t &
#!/usr/local/bin/pike |.EC>D/
int main() 3yw`%$d5
{ 1HS43!
write("Hello, world!\n"); O=E?m=FR"
return 0; QDdH5EfY
} mx3p/p
vnS;T+NZSC
z<u*I@;
PL/I tEFbL~n
Test: procedure options(main); bD ADFitSo
declare My_String char(20) varying initialize('Hello, world!'); u]uZc~T
put skip list(My_String); @D@_PA)e(
end Test; Rw!wfh_+
P4{!/&/
6[~_;0
Prolog PyQ
P K,
goal IJ E{JH
write("hello,world!"). =Hf`yH\#
V3v/hV:
G'IRqO*]
Python e61e|hoX\
#!/usr/local/bin/python Mv\]uAT`
print "Hello, world!" fZka$
4
gO%oA} !i
eB2a1<S&@
REXX ZXH{9hxd
say "Hello, world!" 8ZL9>"%l
`),ACkU>U
>1S39n5z.
Ruby Bh
,GQHJ
#!/usr/bin/ruby ?w5>Z/V
print "Hello, world!\n" %k i^XB86
Bm4fdf#A]
He)vl.
Scheme ;%B:1Z
(display "Hello, world!") ,%<ICusZ
(newline) o_R_
Zt/4|&w
d8ck].m=
sed (需要至少一行输入) 8d1r#sILI
sed -ne '1s/.*/Hello, world!/p' zr@HYl
N.F//n
`/RcE.5n\@
Smalltalk MN<uIqG
Transcript show: 'Hello, world!' @5tGI U;1
, .]1N:
4RL0@)0F
SNOBOL |* v w(
OUTPUT = "Hello, world!" iTcq=
END T%O2=h\} E
wn/Y5
u#)ARCx ,w
SQL {n 4W3
create table MESSAGE (TEXT char(15)); ^^(!>n6r^
insert into MESSAGE (TEXT) values ('Hello, world!'); OOZxs?pR
select TEXT from MESSAGE; L['g')g.
drop table MESSAGE; \V%l.P4>e
1+v!)Y>Z&
[ XBVES8
Tcl $A^OP{
#!/usr/local/bin/tcl F2!]T =
puts "Hello, world!" FwwOp"[~t
R
"qt}4m
/pQUu(~h_
TScript S+7u,%n/
? "Hello, world!" YckLz01jh
|31/*J!@z*
jX&/ e'B
Turing A@ZsL
put "Hello, world!" 9o+e3TXp#
Ctx{rf_~
4,.[B7irR
UNIX-style shell |Ng}ZLBM
程序中的/bin/sh可改为您使用的shell L "5;<
SQ-CdpT<
#!/bin/sh X}ft7;Jpy
echo 'Hello, world!' 8;$zD]{D1
ZmAo9>'Kg
MuF{STE>->
GUI
;(
[^+_/
zbAyYMtEk
Delphi mGh8/Xt
program HelloWorld; _<u>?
Qt
uses 1otE:bi
Dialogs; irF+(&q]jh
begin k{J\)z
ShowMessage('Hello, World!');
[7Liken
end. Y*0j/91
'Esz#@R
#L+ZHs~
Nuva $fAZ^
<. A`nzqe#(1
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) {r?+PQQ#
.> e'2w-^7
e]@
B61lc
~F[JupU
Visual Basic g3TqTs
MsgBox "Hello, world!" `>u^Pm
'或者 U*\1d
Print "Hello, world!" F7\nG}#s
FW:V<{f
h@ @q:I=
Visual FoxPro DHVfb(H5e
? "Hello, world!" SI/3Dz[
8qwPk4
5`)[FCQ
X11 ld7B{ ?]
用一个程序 ZM_-g4[H
H8h,JBg5<F
xmessage 'Hello, world!' 7ZFd;-
~ep^S^V+
用C++和gtkmm 2 =U}!+ 8f
$KPf[JvQ
#include <iostream> ql7N\COoq
#include <gtkmm/main.h> q3ebps9^
#include <gtkmm/button.h> tS[%C)
#include <gtkmm/window.h> 9s#*~[E*
using namespace std; V3$zlzSm,
P.3kcZ
class HelloWorld : public Gtk::Window $?y\3GX
{ o"g<Vz
public: USV;j%U4*
HelloWorld(); hy"=)n(
virtual ~HelloWorld(); __i))2
protected: Vkl]&mYRz
Gtk::Button m_button; 8*EqG5OP
virtual void on_button_clicked(); UVD*GsBk
}; ]Uul~T
p*|Ct
HelloWorld::HelloWorld() : m_button("Hello, world!") CJt(c,!z
{ .=@CF8ArG
set_border_width(10); gFnJDR
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); h%] D[g
add(m_button); j9|1G-CM
m_button.show(); }VqCyJu&{
} m]&y&oz
.x_F4 #Ka
HelloWorld::~HelloWorld() {} s}?QA cC
7*@BCu6
void HelloWorld::on_button_clicked() -NUA
{ ^\w!D{Y7Q
cout << "Hello, world!" << endl; e84O
6K6o
} 8i^d*:R
\1?:
int main (int argc, char *argv[]) Iy@6cd,)S
{ ]f*.C9Y
Gtk::Main kit(argc, argv); <h*$bx]9 +
HelloWorld helloworld; nw=:+?
Gtk::Main::run(helloworld); N2&h yM
} 3e1^r_YI
K*N8Vpz(
a[RqK#
Java dyt.(2
import java.awt.*; d>Ky(wS
import java.awt.event.*; VTn6@z_ x
~/;shs<9EM
public class HelloFrame extends Frame O[R
{ Gy!bPVe
HelloFrame(String title) TchByN6oN<
{ OGPrjL+
super(title); D3x
W?$Z
} C0;:")6~
public void paint(Graphics g) >(a[b@[K
{ {#&j