“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。 KOk4^#h@
l*(8i ^
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》。 @<hb6bo,N
-A^ _{4X
以下是用不同语言写成的Hello World程序的几个例子: +SR+gE\s0
Ada P^~yzI
with Ada.Text_Io; use Ada.Text_Io; _7Ju
procedure Hello is ] vHF~|/-
begin >
PRFWO
Put_Line ("Hello, world!"); ;#W2|'HD
end Hello; p_gm3Q
AUG#_HE]k
Q%`@0#"]Sv
汇编语言 t6"%3#s
r=
`Jn6@
x86 CPU,DOS,TASM PbJ(:`u
MODEL SMALL we//|fA<
IDEAL [6Izlh+D
STACK 100H $f
<(NM6?
]nn98y+
DATASEG %D{6[8
HW DB 'Hello, world!$' i
&nSh ]KK
iy.p n
CODESEG @alK;\
MOV AX, @data {L{o]Ii?g
MOV DS, AX _}Ac n$
MOV DX, OFFSET HW =7=]{Cx[
MOV AH, 09H oq
Xg
INT 21H {3mRq"e
MOV AX, 4C00H EH J.T~X
INT 21H t\dN DS
END :D5Rlfj
,q`\\d
,f%S'(>w
x86 CPU,GNU/Linux,NASM O m|_{
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). I3L<[-ZE
;Enter this into "hello.asm" then type: zFfr.g;L
;"nasm -f elf hello.asm" 8b&/k8i:
;"ld hello.o -o hello" VPJElRSH
;"./hello" w,.TTTad
oWT3apGO
section .data ;data section declaration y'.p&QH'`
msg db 'Hello World!',0AH `r6 ,+&
len equ $-msg ;string length Rsm^Z!sn
Vx u0F]%
section .text ;code section declaration tCH!my_
global _start ;entry point (start of execution) L
ca}J&x]^
_start: mov edx,len ;string length /hR&8 `\\
mov ecx,msg ;string start -=Q*Ml#I
mov ebx,1 ;file handle: stdout $t[FH&c(
mov eax,4 ;sys_write 9s
q
int 80h ;kernel system call Tx# Mn~xD
/{g>nzP
mov ebx,0 ;return value kS);xA8s]
mov eax,1 ;sys_exit j_?FmX
_
int 80h ;kernel system call $bR~+C
eu-*?]&Di
0Th&iA4
x86 CPU,Windows,MASM32 P/eeC"
.386 BL}\D;+t
.model flat,stdcall 97*p+T<yp
option casemap:none &DX! f
;Include 文件定义 ~TD0zAA&
include windows.inc <)H9V-5aZ
include user32.inc ""G'rN_=Bi
includelib user32.lib .uZ3odMlx
include kernel32.inc oJz^|dW
includelib kernel32.lib +mj y<~\
;数据段 $qnZl'O>
.data 1.GQau~
szCaption db 'A MessageBox!',0 ;A'mB6?%H
szText db 'Hello,world!',0 `*R:gE=
;代码段 i-_mTY&M
.code M5X&}cN6
start: %5n_
p^xp
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Xl#ggub?
invoke ExitProcess,NULL E{`fF8]K
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *])
`z8Ox
end start vpr.Hn
R
'zWYQ
FcU SE
AWK EV%gF
BEGIN { print "Hello, world!" } R&k<AZ
\ Gvm9M
cdT7
@
BASIC .Yn_*L+4*
传统版BASIC(例如GWBASIC): kn4`Fa;)O
Bj;'qB>3
10 PRINT "Hello, world!" #q=Efn'
20 END 583|blL
^hM4j{|&M
或在提示符输入: dUZ
,m9u
Zb>? 8
?"Hello, world!":END <\^8fn
O_7|C\]
现代版BASIC(例如Quick BASIC): VY4yS*y
_]H&,</
Print "Hello, world!" c-5)QF) z
JK5gQ3C[
以下的语句在Quick BASIC中同样有效:
ZBp/sm
bWU'cw
? "Hello,world!" H<,gU`&R
bq*eH (qx
\_f(M|
BCPL on`3&0,.
GET "LIBHDR" +ye3HGD
?Z/V~,
LET START () BE n/:33DAB
$( H*CW1([
WRITES ("Hello, world!*N") @*((1(q
$) 1oGw4kD^x
8<Av@9 *}
)Ql%r?(F+
Befunge Vt#.eL)Ee
"!dlrow olleH">v e(t\g^X
, @:#eb1<S
^_@ p<"m[Dt]
zQd
2
XW]tnrs
Brainfuck 8{sGNCvU
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< _-g&PXH
+++++++++++++++.>.+++.------.--------.>+.>. [7Oe3=
UP,c |
83#mB:^R
C }o`76rDN
#include <stdio.h> (f"4,b^]
_q-*7hCQ`
int main(void) [{,1=AB
{ SO!8Di
printf("Hello, world!\n"); C LRdm^B
return 0; SwMc
pNo
} wnC81$1l~
uVrd i?3
( a#BV}=
C++ v.qrz"98-
#include <iostream> &tj!*k'
4.t-i5
int main() ^ [@,
{ /%^#8<=|U
std::cout << "Hello, world!" << std::endl;
ew4U)2J+
return 0; N~'c_l
} >z@0.pN]7
jse&DQ
S)@j6(HC4
C++/CLI sXFZWj}\
int main() 9G2FsM|,
{ I; rGD^
System::Console::WriteLine("Hello, world!"); c]!V'#U
} WH^%:4
a\*yZlXKs
5nx1i
C# (C Sharp) UkFC~17P
class HelloWorldApp ,z=LY5_z)
{ =rdV ]{Wc
public static void Main() tKXIk9e
{ SE*g;Cvg1
System.Console.WriteLine("Hello, world!"); j0q&&9/Jj
} CpTjJXb
} #%O0[kd
l.M0`Cn-%
Iu=(qU
COBOL f3y=Wxk[
IDENTIFICATION DIVISION. c-sfg>0 ^
PROGRAM-ID. HELLO-WORLD.
El8,,E
|2A:eI8 ^
ENVIRONMENT DIVISION. y?3;06y|
K{+2G&i
DATA DIVISION. KMax$
t%8BK>AHvw
PROCEDURE DIVISION. G 01ON0
DISPLAY "Hello, world!". A,!-{/w c
STOP RUN. &$H!@@09|w
d&>^&>?$zh
5)X=*I
Common Lisp cFX p
(format t "Hello world!~%") GTHt'[t@;
R=\IEqqsi
~a2}(]
DOS批处理 !dq.KwL
@echo off kyV8K#}%8
echo "Hello, world!" "#g}ve,
iWR)ke
<F'\lA9
Eiffel J<lW<:!3]
class HELLO_WORLD JW&gJASGC
gjlx~.0d
creation <C*hokqqP
make {{!-Gr
feature ~"A0Rs=
make is r9XZ(0/p
local s5.CFA
io:BASIC_IO *0ro0Z|Iq
do 6!bsM"F
!!io #<xm.
io.put_string("%N Hello, world!") ^<6[.)
end -- make gRzxLf`K
end -- class HELLO_WORLD VIbq:U
o4WDh@d5S
N2o7%gJw
Erlang /gas2k==^
-module(hello). f6p/5]=J26
-export([hello_world/0]). dc'Y`e
izR"+v
hello_world() -> io:fwrite("Hello, World!\n"). -nwypu
qe\5m.k
lEBLZ}}\
Forth |uJ%5y#
." Hello, world!" CR !()Qm,1u
;9#KeA _
J .<F"r>
Fortran 1\.pMHv/
WRITE(*,10) ?V=CB,^
10 FORMAT('Hello, World!') Iu6
STOP 1Z&(6cDY8M
END W*Y/l~x}
glw+l'@
Ho]su?
HTML zT{VE+=
<HTML> w!XD/jN
<HEAD> W@esITr
<TITLE> Hello World! </TITLE> +w~oH =
</HEAD> Uw:"n]G]D?
<BODY> M3au{6y
<p>Hello World!</p> {4PwLCy
</BODY> xYB{;K
</HTML> D6Wa.,r
z@j8lv2j1
H,NF;QPPC
HQ9+ rT>wg1:
H Alq(QDs
@}ZVtrz
6dYMwMH
INTERCAL 5-A\9UC*@
PLEASE DO ,1 <- #13 qJw_
DO ,1 SUB #1 <- #238 2Z%O7V~u
DO ,1 SUB #2 <- #112 o !7va"
DO ,1 SUB #3 <- #112 8cQ'dL`(
DO ,1 SUB #4 <- #0 ," ql5Q4
DO ,1 SUB #5 <- #64 ##ANrG l
DO ,1 SUB #6 <- #238 @%SQFu@FJ
DO ,1 SUB #7 <- #26 ~QVH<`sn
DO ,1 SUB #8 <- #248 F:ELPs4"
DO ,1 SUB #9 <- #168 &c #N)U
DO ,1 SUB #10 <- #24 T]$U""
DO ,1 SUB #11 <- #16 A %-6`>
DO ,1 SUB #12 <- #158 `$NP>%J-
DO ,1 SUB #13 <- #52 BJ0?kX@
PLEASE READ OUT ,1 8;X-)&R
PLEASE GIVE UP y+q5UC|
WEpoBP
CL
V43H/hl
Java )`}:8y?
public class Hello y+;|Fz
{ xN(|A}w
public static void main(String[] args) !!y a
{ .wr>]yN
System.out.println("Hello, world!"); nj4/#W
} dqAw5[qMJ
} eDB ;cN
BerwI
7!=
K|@G t%Y
JSP 2Rz
<% QS j]ZA
out.print("Hello, world!"); xezcAwW
%> %>s|j'{
azU"G(6y?+
Y^]rMK/;
MIXAL O
H7FkR
TERM EQU 19 the MIX console device number .p$(ZH =~
ORIG 1000 start address K+iP6B
START OUT MSG(TERM) output data at address MSG E)3NxmM#
HLT halt execution )}ROLe
MSG ALF "MIXAL" (iGTACoF
ALF " HELL" ~{gqsuCCL
ALF "O WOR" zMJT:7*`|
ALF "LD " B1Oq!k
END START end of the program |'2d_vR
=Runf
+}
LHmZxi?
Nuva Rva$IX^]
<..直接输出..> C.QO#b
Hello, world! JN6B~ZNf
'm9` 12H
<..或者..> uVU)d1N
rQ9'bCSr%
<. P>6{&(
// 不带换行 aN=B]{!
? "Hello, world!" Qci]i)s$js
6@Y|"b
// 或者 =":,.Ttq41
3N:D6w-R
// 带换行 >i
O!*&Y>
?? 'Hello, world!' h.fq,em+H
.> ,2)6s\]/b
!VK|u8i
&~w}_Fjk
OCaml }&3~|kP~O
let main () = q,6DEz
print_endline "Hello world!";; P
}uOJVQ_
$wU\Js`/S]
u2[w#
Pascal kNL\m[W8$
program Hello; {y;n:^
begin 4`R(?
writeln('Hello, world!'); ]cruF#`%
end. l@:0e]8|o
V1JIht>Opo
.{KVMc
Perl =rK+eG#,
#!/usr/local/bin/perl ?' je)F
print "Hello, world!\n"; hpJ-r
3k?X-|O8AZ
abEmRJTmW
PHP -!9G0h&i|
<?php Mc}^LDX
print("Hello, world!"); bJ;'`sw1
?> llsfTrp
*\q
d
MJrR[h]
Pike 'P}0FktP`
#!/usr/local/bin/pike (4EI-e*6
int main() 3yXY.>'
{ ],v=]+R
write("Hello, world!\n"); {}Za_(Y,]
return 0; y)gKxRaCS
} +'w3 =2Bo
r"R#@V\'1b
ri.I pRe
PL/I zv"Z DRW
Test: procedure options(main); Hq 188<
declare My_String char(20) varying initialize('Hello, world!'); .GcKa024
put skip list(My_String); as_PoCoss
end Test; u~-8d;+?y
eR" <33{
BF <ikilR
Prolog {qMIGwu
goal !?gKqx'T$
write("hello,world!"). 2 Vrw
`~`k_7t.
IaXeRq?<
Python fd2T=fz-
#!/usr/local/bin/python O7IJ%_A&
print "Hello, world!" 8&aq/4:q0
k@:%:Sj 2
K96<M);:g
REXX (!N|Kl
say "Hello, world!" JO<wU
?I@W:#>o
XSlGE9]AG
Ruby pV"R|{#V
#!/usr/bin/ruby t<viX's
print "Hello, world!\n" t`mV\)fa
"FKOaQ%IH
r$~HfskeI
Scheme ?1eK#Z.
(display "Hello, world!") 0_t`%l=
(newline) 9*?oYm;dX
H'hpEwG
(ICd}
sed (需要至少一行输入) I(0~n,=j
sed -ne '1s/.*/Hello, world!/p' *=7U4W
>
"=>3
>J>[& zS
Smalltalk 3jC_AO%T
Transcript show: 'Hello, world!' Hg$lXtn]
q#=(e:aCb
R!N%o~C2-
SNOBOL <yFu*(Q
OUTPUT = "Hello, world!" C-[eaHJ'$
END $'hEz/
n#OB%@]<V
%Q dn
SQL q(2'\ _`u
create table MESSAGE (TEXT char(15)); )f<z%:I+Z
insert into MESSAGE (TEXT) values ('Hello, world!'); ?oHpFlj
select TEXT from MESSAGE; r
# cGop]
drop table MESSAGE; ]F'e
aR
<;Zmjeb+#
1F&Trqq
Tcl czRFMYE
#!/usr/local/bin/tcl \ Et3|Iv
puts "Hello, world!" r:ptQo`1-
SmSH2m-
S2VA{9:m
TScript FSW_<%
? "Hello, world!" Ks`J([(W&
_C[q4?
!\.pq 2
Turing |_aa&v~
put "Hello, world!" &H/'rd0M
'^~{@~ ;%L
T&u5ki4NE
UNIX-style shell MJ
[m
程序中的/bin/sh可改为您使用的shell DKJmTH]rUg
)g#T9tx2D
#!/bin/sh {dMsz
echo 'Hello, world!'
qwgPk9l
j0evq+
dufu|BL|}
GUI JL}_72gs
dV$gB<iS
Delphi Y;^l%ePuW
program HelloWorld; ZyPVy
uses .Una+Z
Dialogs; ARwD~Tr
begin HjD8u`qQ
ShowMessage('Hello, World!'); hxd`OG<gF
end. Eq9x2
DJ [#5h5
BdblLUGK#
Nuva ;d"F%M
y
<. Y}|X|!0x
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) vJc- 6EO
.> 'RYIW/a
`1{ZqRFQ
MSqVlj
Visual Basic q" sed]
MsgBox "Hello, world!" ]e>w}L(gV
'或者 !_D0vI;
Print "Hello, world!" 9YQb&
^{;oM^Q'
Z<y I\1
Visual FoxPro s.N/2F&*W
? "Hello, world!" Pz |>"'
tla
5B_
(G4at2YLd
X11 Ed,~1GanY
用一个程序 {19PL8B~}
YPK(be_|I
xmessage 'Hello, world!' +tIF
h'
>xYpNtEs
用C++和gtkmm 2 m6&~HfwN
2E/"hQw
#include <iostream> l2rd9-T
#include <gtkmm/main.h> J0\Fhe0'
#include <gtkmm/button.h> uHvp;]/0\
#include <gtkmm/window.h> lC("y'
::
using namespace std; a85$K$b>
xU>WEm2
class HelloWorld : public Gtk::Window RD'Q :W
{ ex9g?*Q
public: #9}D4i.`}
HelloWorld(); D] jzAx
virtual ~HelloWorld(); lVR~Bh
protected: T?soJ]A
Gtk::Button m_button; ?2;&O`x*
virtual void on_button_clicked(); ag#S6E^%S
}; z.9U}F
mD0f<gJ1
HelloWorld::HelloWorld() : m_button("Hello, world!") )c83/= <v
{ kmsb hYM)
set_border_width(10); I{9QeRI
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); O-~7b(Z
add(m_button); &<5zqsNJ\a
m_button.show(); 5k3 b3&
} !&ayYu##{
nE&