“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。 tKJ)'v?
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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》。 525xm"Bs
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以下是用不同语言写成的Hello World程序的几个例子: uM4,_)L
Ada 0 TS:o/{(a
with Ada.Text_Io; use Ada.Text_Io; bUqO.FZ[
procedure Hello is AV8TP-Ls+
begin *:d_~B?Tn
Put_Line ("Hello, world!"); 3@}_ F<"*
end Hello; TZHqn6
r@n%
@-MrmF)<U
汇编语言 a~{Stv
7,O^c+
x86 CPU,DOS,TASM oVsl,V
MODEL SMALL $[]=6.s
IDEAL /\\C&Px
STACK 100H cu""vtK
~S=hxKI
DATASEG fc\hQXYv
HW DB 'Hello, world!$' g.9MPN
wTTQIo60
CODESEG vJcvyz#%1
MOV AX, @data 61C&vm
MOV DS, AX p]a IMF_
MOV DX, OFFSET HW {@3=vBl%O+
MOV AH, 09H _c #P
INT 21H &E9%8Q)r(
MOV AX, 4C00H l_kH^ET
INT 21H [Zua7&( 5
END D@Wm-
~MQN&
?Ts
Z_
x86 CPU,GNU/Linux,NASM as\V,
{<
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ~ 01]VA
;Enter this into "hello.asm" then type: 82w<q(
;"nasm -f elf hello.asm" k5PzY!N
;"ld hello.o -o hello" XBeHyQp
;"./hello" mV'd9(s?
km3-Hp1
section .data ;data section declaration xbmOch}j6
msg db 'Hello World!',0AH 2OZdj
len equ $-msg ;string length ;j52a8uE'}
p4el9O&-tV
section .text ;code section declaration 5N[Y2
global _start ;entry point (start of execution) M.l;!U!}
_start: mov edx,len ;string length Ao]F_hZ
mov ecx,msg ;string start 3Yr
mov ebx,1 ;file handle: stdout e~}+.B0
mov eax,4 ;sys_write
\(A>~D8Fo
int 80h ;kernel system call 'i@Y #F%D
Fm2t:,=
mov ebx,0 ;return value f.8L<<5 c
mov eax,1 ;sys_exit @r
.K>+1
int 80h ;kernel system call OrRve$U*|
*J$=UG,u
m\k$L7O
x86 CPU,Windows,MASM32 lc/2!:g
.386 |X_yL3`Zb
.model flat,stdcall @%jzVF7
option casemap:none ksK
lw_%o
;Include 文件定义 ).vdKNzw
include windows.inc !}vz_6)
include user32.inc 'uPqe.#?
includelib user32.lib _mO\Nw0
include kernel32.inc ?}Mv5SO
includelib kernel32.lib 20Rgw
;数据段 ,qr)}s-
.data KT|$vw2b
szCaption db 'A MessageBox!',0 cq!>B{
szText db 'Hello,world!',0 D #A9
;代码段 = F:d#j>F
.code 8m6L\Z&
start: K1C#
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK CBF>157B
invoke ExitProcess,NULL >o[T#U
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> f^]2qoN
end start bGSgph
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/Ia#udkNMp
AWK U3Dy:K[
BEGIN { print "Hello, world!" } 6Es-{u(,
lc'Jn$O@
}LE/{]A
BASIC y%T'e(5Ed
传统版BASIC(例如GWBASIC): 9> (8r+
M2m@N-+R
10 PRINT "Hello, world!" 4sva%Up
20 END WIbU^WJ0
7sFjO/a*
或在提示符输入: )X7ZX#ttH
mM95BUB
?"Hello, world!":END 1 8&^k|
.vb*|So
现代版BASIC(例如Quick BASIC): Q"(i
yX)2
hj:s
Print "Hello, world!" '8W }|aF
LS \4y&J40
以下的语句在Quick BASIC中同样有效: .+8w\>w6g
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? "Hello,world!" %RJW@~!
6x.#K9@q4
B,A/
-B\
BCPL ,iHl;3bu
GET "LIBHDR" MbJV)*Q
/]vg_&)=
LET START () BE %i96@6O
$( |M+ !O93
WRITES ("Hello, world!*N") K~Xt`
$) q,m6$\g4
]~|zY5i!
`zTVup&
Befunge [g%oo3`A
"!dlrow olleH">v \75%[;.
, Q#vur o
^_@ oinF<-(
6T)D6;@L
`4$" mO>+
Brainfuck 0BBWuNF.
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< L>xN7N3&m
+++++++++++++++.>.+++.------.--------.>+.>. Yr0%ZYfN
V%3K")
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C UZXnABg,J
#include <stdio.h> {o;J'yjre1
|KkVt]ZQe9
int main(void) 4sG^bZ,
{ Dzp9BRS
2f
printf("Hello, world!\n"); 1[^2f70n
return 0; Hm*n,8_
} +nZx{d,wt
:vm*miOF
*O+N4tq
C++ :r!nz\%WW
#include <iostream> xr o
7 Xw#
int main() k%.IIVRx
{ fRq2sK;+
std::cout << "Hello, world!" << std::endl; k ELV]iWb
return 0; ?z?IEj}
} OI1&Z4Lx
t\'URpa+5%
?-Oy/Y K
C++/CLI Xd{"+'29
int main() 6\(\
{ $Y>LUZ)b&8
System::Console::WriteLine("Hello, world!"); 3"cAwU9
} ;ML21OjgN
.( 75.^b2)
2#p6.4h=
C# (C Sharp)
rq+E"Uj?
class HelloWorldApp )x8Izn
{ tEZ@v(D
public static void Main() A5/Q:8b
{ X}_kLfP/9
System.Console.WriteLine("Hello, world!"); &;*jMu6
} &i6WVNGy
} k;q|pQ[
Xul<,U~w6
c"6<p5j!
COBOL U
Tw\_s
IDENTIFICATION DIVISION. ~6E
`6;`
PROGRAM-ID. HELLO-WORLD. ~-|K5
Bg Uf:PT
ENVIRONMENT DIVISION. L`3 g5)V
Gi?"
DATA DIVISION. h=?#D0
ax,%07hJ
PROCEDURE DIVISION. ^ WidA-
DISPLAY "Hello, world!". 0~)cAKus
STOP RUN. YY'46
qMKXS,s
Bv@NE2
Common Lisp ..;}EFw5
(format t "Hello world!~%") ^~(@QfY
O~trv,?)
U z[#t1*
DOS批处理 ?%#3p[
@echo off [gx6e 44
echo "Hello, world!" D O#4E<]5
I6X_DPY
m.Yj{u8zX
Eiffel |3QKxS0
class HELLO_WORLD A^*0{F?,)
o[&*vc)
creation 4f'1g1@$
make 'z>|N{-xG
feature 8<{)|GoqB
make is ]uG9WT6l
local L;wzvz\+
io:BASIC_IO [y&yy|*\
do Fzt{^%\`
!!io p0>W}+8fF
io.put_string("%N Hello, world!") *FmY4w
end -- make v[A)r]"j"M
end -- class HELLO_WORLD ^FIpkhw
J7c(qGJI2
.T#h5[S2x
Erlang bM+}j+0
-module(hello). 0X!A'
-export([hello_world/0]). |eU{cK~e^
au1uFu-
hello_world() -> io:fwrite("Hello, World!\n"). !EB<e5}8wK
F4 `ud;1H
4|ML#aRz
Forth $oDc
." Hello, world!" CR ?:H4Xd7
4$~eG"wu
{mr!E
Fortran 6F
!B;D -Q
WRITE(*,10) j0_)DG
10 FORMAT('Hello, World!') nc4KeEl
STOP #{-B`FAQ
END Na=.LW-ma=
vz[oy |{F
:2ILN.&
HTML @Fvp~]jCb
<HTML> .!/w[Z]
<HEAD> DP_ ]\V<sT
<TITLE> Hello World! </TITLE> $F2A
</HEAD> ?d&l_Pa0e
<BODY> q|r^)0W
<p>Hello World!</p> % 8u97f W
</BODY> Ymt.>8L
</HTML> lC|`DG-B
ObnQ,x(
P'l'[Kz{'
HQ9+ (JenTL`%u
H z_nv|5"
|Y"nZK,
%k3A`ClW
INTERCAL 5e1;m6
PLEASE DO ,1 <- #13 f=:ycd!
DO ,1 SUB #1 <- #238 "Tt5cqUQoY
DO ,1 SUB #2 <- #112 x
*:v]6y
DO ,1 SUB #3 <- #112 ]L)l5@5^
DO ,1 SUB #4 <- #0 ? DJ/Yw>>3
DO ,1 SUB #5 <- #64 GO4IAUA
DO ,1 SUB #6 <- #238 )d(F]uV:y
DO ,1 SUB #7 <- #26 %La<]
DO ,1 SUB #8 <- #248 @:s(L]
DO ,1 SUB #9 <- #168 tx`gXtO$
DO ,1 SUB #10 <- #24 BRSIg]
DO ,1 SUB #11 <- #16 ^1`Mz<
DO ,1 SUB #12 <- #158 %j $r"
DO ,1 SUB #13 <- #52 ]"q9 ~
PLEASE READ OUT ,1 V?t56n Y}
PLEASE GIVE UP (r*"}"ZG
c6-~PKJL
9 n0?0mk
Java =2XAQiUR\
public class Hello -,:^dxE'
{ ZQ1,6<^9i[
public static void main(String[] args) )?y${T
{ }jdMo83
System.out.println("Hello, world!"); @qUgp*+{
} +-2W{lX
} '<=77yDg
)>"|<h.2]
10}<n_I
JSP -8zdkm8k
<% tEuVn5
out.print("Hello, world!"); :Eb=jWA
%> Y'
FB
{
80_}}op?8
E5iNuJj=f
MIXAL 1L;3e@G
TERM EQU 19 the MIX console device number MxLg8,M
ORIG 1000 start address
2^w8J w9
START OUT MSG(TERM) output data at address MSG 7H])2:)
HLT halt execution "50c<sZSB
MSG ALF "MIXAL" *(g0{V
ALF " HELL" [b :0j-
ALF "O WOR" 3QhQpPk),
ALF "LD " k^@dDLr"
END START end of the program RoFoEp
.~O-
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A'6-E{
Nuva /$NR@56
\
<..直接输出..> HkPdqNC&
Hello, world! n:"0mWnL$y
l~Hu#+O
<..或者..>
i"`N5
q x5jaa3
<. _s18^7
// 不带换行 `(uN_zvH
? "Hello, world!" ZyX+V?4
ZHM NG~!
// 或者 2`^M OGYk
%`bn=~T^
// 带换行 +v+Dkyf:V
?? 'Hello, world!' )tm%0z7R
.> 2WUl8?f2Y
1<G, 0Lt
gySl.cxt
OCaml ]P*H,&I`#
let main () = U!
$/'Xi9
print_endline "Hello world!";; hG2WxYk
|mQC-=6t;Y
qm/#kPlM
Pascal (M#m BS
program Hello; P"{yV?CNg
begin =d BK,/
writeln('Hello, world!'); RF }R~m9]
end. <:>[24LJ{
"_0sW3rG
NT=)</v
Perl Z&|Dp*Z
#!/usr/local/bin/perl eGW
h]%
print "Hello, world!\n"; 3Yf~5csY
OUhlQq\
tISb' ^T
PHP e}NB ,o
<?php 5SEGV|%
print("Hello, world!"); LEg ?/!LIT
?> kq*IC&y
~^/BAc
KBDNK_7A
Pike 2WS Wfh
#!/usr/local/bin/pike Tmk'rOg5
int main() 9^CuSj
{ $}EI3a
write("Hello, world!\n"); >~O/ZDu/@
return 0; /%F5u}eW
} p4uN+D`.U
D}rnpwp{
NC3XJ
4
PL/I W'PW;.,
Test: procedure options(main); =j%ORD[
declare My_String char(20) varying initialize('Hello, world!'); O[8wF86R
put skip list(My_String); FI @kE19
end Test; TB_OFbI2
=, 64Qbau
pmiC|F83!8
Prolog yujv^2/
goal A
|P
wm`
write("hello,world!"). z(#CO<C.t
J;k8 a2$_
E J&w6),d
Python r*c x_**
#!/usr/local/bin/python =%S*h)}@
print "Hello, world!" YRu/KUT$ 7
-sx=1+\nf
.7HEI;4
REXX xUPg~c0
say "Hello, world!" Iv{uk$^7S
5 Nt9'"
nj#kzD[n>
Ruby 7yal T.
#!/usr/bin/ruby r.' cjUs
print "Hello, world!\n" o,qUf
K8uqLSP '
LYuMR,7E
Scheme _6`H`zept
(display "Hello, world!") +.a->SZ5"
(newline) :n OCs
g6h=Q3@
f9HoQDFsM
sed (需要至少一行输入) ,_bG'Hmt
sed -ne '1s/.*/Hello, world!/p' gMPvzBpP
#<5i/5&
i'`>YX
Smalltalk r@CbhD
Transcript show: 'Hello, world!' 'Uo|@tK
#TIlM]5%
s,j=Kym%
SNOBOL dW%;Z
OUTPUT = "Hello, world!" E8.1jCL>{"
END \/!jGy*
_o-01gu.
D.YT u$T
SQL X
CHN'l'
create table MESSAGE (TEXT char(15)); (/|f6_9!
insert into MESSAGE (TEXT) values ('Hello, world!'); $*7AG
select TEXT from MESSAGE; ~,{nBp9*
drop table MESSAGE; 17lc5#^L
Z#@<|{eI
%.s"l6 W
Tcl 5ZjM:wrF|
#!/usr/local/bin/tcl {qFAX<{D
puts "Hello, world!" [?n}?0
<$8e;:#:
Zzv,p
TScript (kJ"M4*<F'
? "Hello, world!" 1ifPc5j}
?dvcmXR
?V})2wwP
Turing m$bNQ7
put "Hello, world!" ~./M5P!\
WE&"W$0
@}tk/7-E
UNIX-style shell (Zu8WyT2
程序中的/bin/sh可改为您使用的shell 8'0KHn{#
G}`Hu_ [\)
#!/bin/sh `%.x0~ih
echo 'Hello, world!' k&o1z'<C
gP=@u.
&z"yls
GUI o
vX9
ETaLE[T%1
Delphi ^S^7u
program HelloWorld; ?Q: KW
uses zg{
Dialogs; 1y.!x~Pi,
begin y73@t$|
ShowMessage('Hello, World!'); _UUp+Hz
end. s
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!{4bC
tkEup&
Nuva EYU3Pl%
<. **Q
K}j[D
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) )%9P ;/
.> $c24l J#/
3qq6X?y*
6E.64+PJw
Visual Basic ipJnNy;
MsgBox "Hello, world!" Z"a]AsG/Q#
'或者 vLh,dzuo
Print "Hello, world!" D4ud|$s1
@Ke3kLQ_\X
xkkW?[&
Visual FoxPro ' q{|p+
? "Hello, world!" m>-(c=3
:_+Fe,h>|
9h'klaE(
X11 fu7J{-<<R
用一个程序 0V?:5r<
qjd8Q
xmessage 'Hello, world!' t5
#'Lt_Yf!
用C++和gtkmm 2 X"
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wvNddu>@
#include <iostream> GA@Zfcg
#include <gtkmm/main.h> O$ ;:5zT
#include <gtkmm/button.h> +vCW${U
#include <gtkmm/window.h> [&p^h
using namespace std; %-~T;_.
} T1~fa
class HelloWorld : public Gtk::Window $,B@yiie
{ UZqk2D
public: V7i1BR8G
HelloWorld(); |.[4$C
virtual ~HelloWorld(); #[ hJm'G
protected: 0Xw3h^%
Gtk::Button m_button; $5a%hK
virtual void on_button_clicked(); 7eekTh, ?
}; U^{'"x+
I4^}C;p0?
HelloWorld::HelloWorld() : m_button("Hello, world!") @~`2Lo/
{ QyX ?
set_border_width(10); Kly`V]XE
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 6z80Y*|eJ
add(m_button); W]DZ'
m_button.show(); IMay`us]:8
} '74-rL:i
o%\pI%
HelloWorld::~HelloWorld() {} (3+:/,{'$
y~pJ|E
void HelloWorld::on_button_clicked() e6WKZ~
vo
{
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cout << "Hello, world!" << endl; . ;q4<_
} >E`p@
e+
GS4
HYF
int main (int argc, char *argv[]) F,-S&d
{ E>3fk
Gtk::Main kit(argc, argv); `CQMvX{
HelloWorld helloworld; Wg2Y`2@t
Gtk::Main::run(helloworld); |KxFiH
} %8lF%uu!x
K@zzseQ}=
pC'GKk 8
Java =D2x@ank[
import java.awt.*; < l%3P6|
import java.awt.event.*; x0!5z1KQh
;Y>cegG\
public class HelloFrame extends Frame RZeU{u<O
{ #]!0$z|Z
HelloFrame(String title) ^N5BJ'[F:
{ '9MtIcNb
super(title); ,pz^8NJAI
} <H)I06];
public void paint(Graphics g) x\Det$3Kx
{ r{gJ[%
super.paint(g); 4(f4 4' ^
java.awt.Insets ins = this.getInsets(); |Skk1#
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 5B'};AQ
} Zom7yI
public static void main(String args []) O8N\
{ Xbb('MoI63
HelloFrame fr = new HelloFrame("Hello"); -S7rOq2Li
V_g9oR_
fr.addWindowListener( 9\]%N;;Lo
new WindowAdapter() -
zQ
{ t<6`?\Gk
public void windowClosing(WindowEvent e) {IW pI *
{ nsJN)Pt
System.exit( 0 ); '_~=C-g
} Ex
?)FL$4
} `_6!nkq8
); jtk2>Ol
fr.setResizable(true); G,8LF/sR
fr.setSize(500, 100); Jy x6{Oj
fr.setVisible(true); / ` 7p'i
} ,afh]#
} yH8
N 8
: qKxm(
+Zx+DW cq
Java Applet O&!tW^ih
Java Applet用于HTML文件。 qd B@P
':fq
HTML代码: &Oq&ikw
MT,LO<.
<HTML> /2&