“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。 >ywl()4O
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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》。 L4 po1
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以下是用不同语言写成的Hello World程序的几个例子: 6s@!Yn|?
Ada x1@,k=qrd
with Ada.Text_Io; use Ada.Text_Io; f7&ni#^Ztj
procedure Hello is If&))$7u
begin =[n !3M+X
Put_Line ("Hello, world!"); awzlLI<2p
end Hello; AROHe
C. .| O
L1kn="5
汇编语言 ;~F*2)
WI1YP0V
x86 CPU,DOS,TASM WL+EpNKSf
MODEL SMALL 4 $k{,
IDEAL Id?-Og2iV
STACK 100H G? SPz
>)4~,-;k
DATASEG !!.@F;]W
HW DB 'Hello, world!$' jZ~girA
o6u^hG6~'
CODESEG g3ukx$Q{>
MOV AX, @data C^$E#|E9 N
MOV DS, AX )v(rEY
MOV DX, OFFSET HW "-:H$
MOV AH, 09H rO}1E<g
(
INT 21H %p\~
MOV AX, 4C00H KcT(/!
INT 21H -o/Vp>_UOE
END LuRCkKJ
X!hzpg(`hR
gYt=_+-
x86 CPU,GNU/Linux,NASM V dJ
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ^qL<=UC.
;Enter this into "hello.asm" then type: 'A[PUSEE
;"nasm -f elf hello.asm" +P))*0(c_
;"ld hello.o -o hello" K-'uE)
;"./hello" 4l0>['K&{
W(62.3d~}?
section .data ;data section declaration 56Lxr{+X
msg db 'Hello World!',0AH !~zn*Hm
len equ $-msg ;string length O
C;~ H{
LDegJer-v
section .text ;code section declaration (%6fZ
global _start ;entry point (start of execution) O}C*weU
_start: mov edx,len ;string length 6EY\
mov ecx,msg ;string start 5xc e1[
mov ebx,1 ;file handle: stdout "y8W5R5kL4
mov eax,4 ;sys_write TTO8tT3[6}
int 80h ;kernel system call -[*y{K@dh
3_RdzW}f
mov ebx,0 ;return value ea{zL
mov eax,1 ;sys_exit E|-oUzt
int 80h ;kernel system call =Fe4-B?I
{yNeZXA>
dOaOWMrfdf
x86 CPU,Windows,MASM32 [m! P(o
.386 e>_a
(
.model flat,stdcall 3B]E2
option casemap:none #+<YFm\i
;Include 文件定义 x'-gvbj!
include windows.inc /QB;0PrE
include user32.inc LmY[{.'tX
includelib user32.lib Swf%WuDj
include kernel32.inc JV,h1/a("
includelib kernel32.lib 8yIBx%"4MH
;数据段 # a4OtRiI
.data F(j;|okf;
szCaption db 'A MessageBox!',0 $J4)z&%dr
szText db 'Hello,world!',0 [kkhVi5;A
;代码段 3ylSO73R
.code ;pL!cG@
start: y ~-v0/
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK
"O#
V/(
invoke ExitProcess,NULL aY4v'[
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> X#by Dg
end start |"}7)[BW}
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~zZOogM<
AWK ^$`mS&3/q
BEGIN { print "Hello, world!" } ;[4=?GL*
Fsl="RB7f
Ze/\IBd
BASIC pq_U?_5Z'r
传统版BASIC(例如GWBASIC): <^$ppwk$
ES^JRX
10 PRINT "Hello, world!" y<HNAGj
20 END {ZdF6~+H(!
W NeBthq6
或在提示符输入: |7KWa(V5I
>tkz%;6
?"Hello, world!":END Sz|kXk6&9
p5"pQeS
现代版BASIC(例如Quick BASIC): .p Mwa
:W>PKW`^
Print "Hello, world!" =i}lh}(
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以下的语句在Quick BASIC中同样有效: "3 ++S
KL!cPnAUu
? "Hello,world!" \HrtPm`e
n5oX 51J
-cJ,rrN_9
BCPL
|Ch,C
GET "LIBHDR" Ttl
m&d+C
|bQF.n_
LET START () BE t>a D;|Y
$( HNc/p4z
WRITES ("Hello, world!*N") TC2%n\GH*
$) b+gu<##
@0
x
{2Ew^Li
Befunge :
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"!dlrow olleH">v MGK?FJn_?
, 7}MnvWP
^_@ ,o0Kev z
kVCWyZh4
T12Zak4.=
Brainfuck B1Pi+-t
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< LPs5LE[Pm
+++++++++++++++.>.+++.------.--------.>+.>. 86cnEj=
L%3Bp/`S
M/lC&F(
C @+~>utr
#include <stdio.h> y$di_)&g
Wt@hST
int main(void) v:Gy>&
{ /kw;q{>?o
printf("Hello, world!\n"); CAx
eJ`Q
return 0; r9!s@n
} O3T7O`H[
k{S8q?Gc
C[jX;//Jiu
C++ ,B_tAg4~
#include <iostream> o~CEja&(
T.')XKP)1N
int main() \b6{u6?+
{ 9
!UNO
std::cout << "Hello, world!" << std::endl; KJS-{ed
return 0; gMZ+kP`
} a[z$ae7
LXJ;8uW2y
\Wg_ gA
C++/CLI qQ3pe:n?
int main() 2"shB(:z>
{ 4M]l~9;A
System::Console::WriteLine("Hello, world!"); 0s{7=Ef
} u>vvW|OB[
j+3rS
?WqaT) l~
C# (C Sharp) :x5O1Zn/t
class HelloWorldApp ]9_}S
{ ,~1sZ`C
public static void Main() [MKG5=kaE
{ .#iot(g
System.Console.WriteLine("Hello, world!"); /d!
} Og@{6>
} $`%Om WW{
NOkgG0Z
XjP;O,x
COBOL .}Xf<G&
IDENTIFICATION DIVISION. yH43Yo#Rk
PROGRAM-ID. HELLO-WORLD. @TXLg2
Ac*J;fI
ENVIRONMENT DIVISION. ~Ma r
.m\0<8C
DATA DIVISION. Wb cm1I)
h
7l>(3
PROCEDURE DIVISION. 7hu7rWY`E
DISPLAY "Hello, world!". b5Q>e%i#
STOP RUN. /NiD#s0t
-])=\n!=
|6^%_kO!|
Common Lisp 75>Ok /
(format t "Hello world!~%") F&7|`o3
-r3
s{HO
GP %hf{
DOS批处理 [eOv fD
@echo off v4'kV:;&
echo "Hello, world!" QX<x2U
[.Kp/,JY
^Mc9MZ)
Eiffel |</) 6r
class HELLO_WORLD (C).Vj~
W\w#}kY
creation 4*E5@{D
make fn5-Tnsq*
feature [Y@>,B!V
make is H|wP8uQC
local ]{\M,txo8
io:BASIC_IO 1(:!6PY
do YOrq)_ l
!!io t#t[cgI
io.put_string("%N Hello, world!") gJrWewEe
end -- make { %]imf|g.
end -- class HELLO_WORLD |KS,k|).
U-m MKRV
,5ZQPICF
Erlang =8<~pr-NO
-module(hello). 0jjtx'F
-export([hello_world/0]). R)\^*tkz7
BbCO K
hello_world() -> io:fwrite("Hello, World!\n"). woPj>M
t8xXGWk0
.PR+_a-X
Forth {]dtA&8(
." Hello, world!" CR 7 [u>#8
2u!&Te(!9
rJCb8x+5a
Fortran gM=:80
WRITE(*,10) m9i/rK_
10 FORMAT('Hello, World!')
#C?M-
STOP hKWWN`;b !
END =EA:fq
oo7}Hg>
Yb/*2iWX
HTML 9`Fw}yAt
<HTML> s<k2vbhI
<HEAD> ]Zc|<f;
<TITLE> Hello World! </TITLE> -rm[.
</HEAD> bGgpPV
<BODY> e3 :L]4t
<p>Hello World!</p> Iapz,nuE
</BODY> ~eoM
2XlW
</HTML> 09G47YkSy1
<.gDg?'3
GfEWms8z
HQ9+ pe+h8
H GbL1<P$V
v*=P
h3 XSt
INTERCAL 0*rD'?)K+
PLEASE DO ,1 <- #13 bP#!U'b" =
DO ,1 SUB #1 <- #238 HBtk)
DO ,1 SUB #2 <- #112 ]- `wXi"
DO ,1 SUB #3 <- #112 q^EY?;Y
DO ,1 SUB #4 <- #0 DmLx"%H3
DO ,1 SUB #5 <- #64 |3@DCbT
DO ,1 SUB #6 <- #238 9_O4yTL
DO ,1 SUB #7 <- #26 pxd=a!(
DO ,1 SUB #8 <- #248 bSX/)')jU
DO ,1 SUB #9 <- #168 mJ k\$/Kh
DO ,1 SUB #10 <- #24 )(-;H|]?
DO ,1 SUB #11 <- #16 gC/ e]7FNr
DO ,1 SUB #12 <- #158 Uza '%R
DO ,1 SUB #13 <- #52 :Z6j5V;s
PLEASE READ OUT ,1 TSsZzsdr2
PLEASE GIVE UP %KT}Map
@CL#B98jl
1H/I-
Java cAEvv[
public class Hello Kmx^\vDs
{ U{hu7
public static void main(String[] args) M%!;5
{ ~S\L(B(
System.out.println("Hello, world!"); %|D)%|Z
} 0x!&>
} @&O4a2+
HRDpFMA/~
p.=9[`
JSP wLXJ?iy3
<% U"p</Q
out.print("Hello, world!"); V\<2oG
%> CYW@Km{e
$%cc[[/U
{a:05Y
MIXAL TI<
x;p
TERM EQU 19 the MIX console device number NEri{qxm
ORIG 1000 start address Nq6'7'x
START OUT MSG(TERM) output data at address MSG GN(<$,~g
HLT halt execution p#ar`-vQ
MSG ALF "MIXAL" "}fweCBgo
ALF " HELL" 7D#y
ALF "O WOR" iT4*~(p 3
ALF "LD " bhpku=ov
END START end of the program UGhEaKH~R
[c
8=b,EI
H,X|-B
Nuva +ZOiL[rS
<..直接输出..> uD&B{c+a
Hello, world! =W.}&
;J 5z
<..或者..> x^f)I|t
p1Zb&:+
<. GYaP"3Lu
// 不带换行 V;XKvH
? "Hello, world!" |0y#} |/
U@mznf* J
// 或者 RQx8Du<
LEgP-sW
// 带换行 FRrp@hE
?? 'Hello, world!' yS\&2"o
.> YS9RfK/
NFs 5XpZ~
:-k|jt
OCaml `R[ZY!=+
let main () = x.?5-3|d$
print_endline "Hello world!";; ,JV0ib,
RU:Rt'
@%R<3!3v
Pascal '+cI W(F?
program Hello; y~
=H`PAE
begin ijF_
KP'
writeln('Hello, world!'); ssi7)0
end. YZBh}l6t
ZYwcB]xEz
c~Ka) dF|
Perl 7w/IHM L
#!/usr/local/bin/perl m.e]tTe
print "Hello, world!\n"; )?*YrWO{
!.]JiT'o
7z{wYCw
PHP -1g:3'%
P
<?php 8-#%l~dr
print("Hello, world!"); +J X;T(T
?> g\JJkXjD#
@LKQ-<dZG
(CmK>"C+
Pike \n)',4mY
#!/usr/local/bin/pike Zh<;r;2
int main() )|F|\6:ne
{ iEr,ly
write("Hello, world!\n"); []>'Dw_r
return 0; \2i7\U
} #&&T1;z"#
w
)R5P[b
JbMTULA
PL/I _/s"VYFZ
Test: procedure options(main); i6`"e[aT[o
declare My_String char(20) varying initialize('Hello, world!'); /8cRPB.
put skip list(My_String); |7s2xRc
end Test; bmfM_oz
BX@Iq
.V?:&_}_I6
Prolog W(s4R,j
goal QU|_
r2LM
write("hello,world!"). 9 E!le=>
Sjpx G@k
{m.$EoS
Python <>cS@V5j
#!/usr/local/bin/python }rTH<!j
print "Hello, world!" du3f'=q6|
M?$[WS
>Jz9wo`
REXX y>^^.
say "Hello, world!" UNdD2Fd9
Y`|+sND
n+~Dc[
Ruby xP9(J
0y
#!/usr/bin/ruby SUncQJJ0S*
print "Hello, world!\n" `Lf'/q
n|SV)92o1
Jg6Lr~!i
Scheme @;Ttdwg#J
(display "Hello, world!") WNjwv/
(newline) kN1MPd4Yh
kSQ8kU_w+
':'g!b`/
sed (需要至少一行输入) n_8[bkbi
sed -ne '1s/.*/Hello, world!/p' >:;dNVz
*z=_sD?1
wbO6Ag@))
Smalltalk C6_(j48&
Transcript show: 'Hello, world!' ?Ec9rM\ze
;?-AFd\i
o`?rj!\
SNOBOL woYD &Oml
OUTPUT = "Hello, world!" ie}OZM
END 9(CvGzco<
|y\Km
(!os&/",
SQL /HC:H,"i
create table MESSAGE (TEXT char(15)); [m
t.2 .
insert into MESSAGE (TEXT) values ('Hello, world!'); pm&THd
select TEXT from MESSAGE;
--$o$EP`
drop table MESSAGE; 1^p/#jt
iTVe8eI
I$n=>s
Tcl d"$8-_K
#!/usr/local/bin/tcl "n-'?W!
puts "Hello, world!" S;Bk/\2
Kz4S6N c
)s2] -n}W
TScript 0&.CAHb}
? "Hello, world!" AKNx~!%2
XZ
rI w
v0^9"V:y
Turing LSo!_tY
put "Hello, world!" 8!g
`bC#%
S)rZE*~2
Nd_fjB
UNIX-style shell bQAznd0
程序中的/bin/sh可改为您使用的shell KaGUpHw
&c`-/8c
#!/bin/sh dj|5'<l2
echo 'Hello, world!' ;|N:FG
Tt[zSlIMx
BG{f)2F\
GUI 'm%{Rz>j
R;& >PFmq
Delphi ?HZp@&
program HelloWorld; .=_p6_G
uses eE;tiX/
Dialogs; -wlj;U
begin 0ju1>.p
ShowMessage('Hello, World!'); q!c(~UVw
end. <t%gl5}|
wN2+3LY{
I0=_=aZO(
Nuva
gwZ<$6
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