“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。 {bMOT*X=A
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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》。 #xfPobQ>il
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以下是用不同语言写成的Hello World程序的几个例子: 4)+L(KyB2
Ada .y^T3?}I
with Ada.Text_Io; use Ada.Text_Io; Rn5{s3?F~2
procedure Hello is YW'l),Z
begin {LoNp0i1a
Put_Line ("Hello, world!"); *4?%Y8;bF6
end Hello; 5%;=(Oig
thrv_^A
XG;Dj<Dm
汇编语言 |[/'W7TV%?
f&88N<)
x86 CPU,DOS,TASM ,pR.HCR#Y
MODEL SMALL -PLh|
IDEAL Ah Rvyj
STACK 100H >@?`n}r|
RE.t<VasP
DATASEG s]Qo'q2
HW DB 'Hello, world!$' {RHa1wc
=sh3&8
CODESEG ~xU\%@I\
MOV AX, @data Be~In~~
MOV DS, AX [['
(,,r
MOV DX, OFFSET HW rkWiGiisM
MOV AH, 09H meArS*d
INT 21H ;Wedj\Kkp
MOV AX, 4C00H ]/c!;z
INT 21H #v}pn2g%>
END +5qY*$dn
EVW\Z 2N.
2b^E8+r9
x86 CPU,GNU/Linux,NASM ~U<=SyZYo
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). WIYWql>*
;Enter this into "hello.asm" then type: dj5@9X
;"nasm -f elf hello.asm" B)=)@h[f
;"ld hello.o -o hello" + 3c (CTz
;"./hello" RR[1mM
Tjj-8cg
section .data ;data section declaration O
2W2&vY
msg db 'Hello World!',0AH R-OQ(]<*
len equ $-msg ;string length 7 p[NuU*Gg
:?f^D,w_B
section .text ;code section declaration )2: ,E
global _start ;entry point (start of execution) ~__rI-/_
_start: mov edx,len ;string length ).8NZ
Aj
mov ecx,msg ;string start /5"RedP<
mov ebx,1 ;file handle: stdout NXSjN~aG2
mov eax,4 ;sys_write jWcfQ
int 80h ;kernel system call Z^6qxZJ7
33OkYC%e
mov ebx,0 ;return value %hN7K
mov eax,1 ;sys_exit 3%YDsd vQx
int 80h ;kernel system call 6h{>U*N"&d
gX;)A|9e
buA/G-<e
x86 CPU,Windows,MASM32 IyoitIbLl
.386 qX:YI3:,@
.model flat,stdcall ]oizBa@?G
option casemap:none yt1dYF0Xq
;Include 文件定义 Q+; N(\
include windows.inc \VHRI<$+5
include user32.inc 7[It
includelib user32.lib .F/0:)
include kernel32.inc A&L2&ofV&q
includelib kernel32.lib Wh^wKF~%
;数据段 W
#V`|JA
.data CM4#Nn=i~
szCaption db 'A MessageBox!',0 ujh`&GiB+
szText db 'Hello,world!',0 !;M5.Y1j&"
;代码段 wH]Y1 m
.code tqzr+
start: ~vB dq Yj
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK @|d+T"f
invoke ExitProcess,NULL PXo^SHJ+gt
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> uL
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end start 2c%b
m*'87a9q0
&FY7
D<
AWK )}i|)^J
BEGIN { print "Hello, world!" } * \%b1
Dn@Sjsj>
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BASIC A75z/O{
传统版BASIC(例如GWBASIC): a}V<CBi
x/uC)xm
10 PRINT "Hello, world!" OpLUmn
20 END Nbd[xs-lw
sDP8!
或在提示符输入: bj7r"_
1R"Z+tNB
?"Hello, world!":END g96]>]A<{
<Y+>a#T
现代版BASIC(例如Quick BASIC): {;+9A}e
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Print "Hello, world!" [ ]42$5eof
wG
X\ub#!
以下的语句在Quick BASIC中同样有效: iHlee=}od
J
Mm'JK?
? "Hello,world!" Jp-6]uW
cHX~-:KOr
Ti&v9re%wO
BCPL `ZGKM>q`
GET "LIBHDR" RSBk^
^b6yN\,S
LET START () BE Lrq e:\
$( q@XxCP]
WRITES ("Hello, world!*N") 7',WLuD
$) f[-$##S.~
#]z_pp:
rT';7>{g
Befunge G3j'A{
"!dlrow olleH">v Yz? 8n
, "=!sZO?3
^_@ i/RA/q
WT jy"p*
PG@6*E
Brainfuck s^HI%mdf
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 0ni/!}YP_
+++++++++++++++.>.+++.------.--------.>+.>. KN".0WU
*{dMo,.eI
F&a)mpFv3c
C w]O,xO
#include <stdio.h> J
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Zx)gLDd
int main(void) 3ICM H
{ 6&_K;
printf("Hello, world!\n"); sE! $3|Q
return 0; "mc ]^O
} g9gi7.'0
CvRO'
6Cgc-KNbk
C++ ,&G!9}EC
#include <iostream> _
qU-@Y$
WkDXWv\{,{
int main() i9D<jkc
{ Wv]ODEd
std::cout << "Hello, world!" << std::endl; .p(%gmOp#
return 0; wicW9^ik
} lPw`KW
LvNulMEK
{!^0j{T
C++/CLI AA0\C_W0p
int main() .+&M,%
x
{ 8/R9YiY5*
System::Console::WriteLine("Hello, world!"); JC
iB;!y
} fT{%zJU
gjk;An
#'BPW<Ob
C# (C Sharp) :Z+Jt=;
class HelloWorldApp \k5
sdHmI[
{ Rd[^)q4d$w
public static void Main() 1v 4M*
{ ,,]<f*N
System.Console.WriteLine("Hello, world!"); v(zfq'^%`
} ydMSL25<+
} =k5O*ql"
X'j9l4Ph7
u{S"NEc
COBOL \LM.>vJ
IDENTIFICATION DIVISION. p#
|}
o9
PROGRAM-ID. HELLO-WORLD. %e(DPX
$hy0U_}6
ENVIRONMENT DIVISION. "(Nt9K%P)
d<[L^s9
DATA DIVISION. W&v|-#7=6
B_*Ayk
PROCEDURE DIVISION. a|z@5r%
DISPLAY "Hello, world!". %DM0Z8P$B-
STOP RUN. V=<AI.Z:w
"[0.a\ d<
A_crK`3
Common Lisp }=|plz}
(format t "Hello world!~%") nO#x"
odn3*{c{x
F?t;bV
DOS批处理 Kl<NAv%j
@echo off bnJ4Edy
echo "Hello, world!" LCW}1H:Q
Pbt7T
Q
;vy<!@Y;8
Eiffel z0Z1J8Qq6.
class HELLO_WORLD L3A2A
]n3!%0]\
creation #Hy\lJ
make wo;OkJKF
feature sKk+^.K}|
make is T3I{D@+0
local Jhfw$ DF
io:BASIC_IO |
^G38
do $9@AwS@Uu
!!io
+
)[@
io.put_string("%N Hello, world!") VfozqUf
end -- make XlnSh<e
end -- class HELLO_WORLD v0?SN>fZ
}F"98s W
3W{!\
Erlang pw`'q(ad
-module(hello). R:j
mn
-export([hello_world/0]). ~+ 9vz
EWQLLH "h
hello_world() -> io:fwrite("Hello, World!\n"). N,l"9>CF
\0vs93>?
Cy)N hgz
Forth yDWBrN._
." Hello, world!" CR Cy*.pzCi
E(vO^)#
Y B,c=Wx
Fortran ^bP`Iv
WRITE(*,10) klH?!r&
10 FORMAT('Hello, World!') 1vxQ`) a
STOP 7?{y&sf
END bE{YK
b%vIaP|]B
-*i_8`
HTML W6_ rSVm
<HTML> 2pU'&8
<HEAD> iJZNSRQJ}r
<TITLE> Hello World! </TITLE> A^#\=ZBg1
</HEAD> ;Rpib[m
<BODY> =,h'}(z_
<p>Hello World!</p> [`s0 L#
</BODY> L`X5\D'X
</HTML> a(=lQ(v/?
841 y"@*BY
-
jCj_@n
HQ9+ ?$T ^L"~
H %ek0NBE7
fGqX
dlP
AI|+*amTd
INTERCAL ^i_+ugJX
PLEASE DO ,1 <- #13 W`NF4 0)
DO ,1 SUB #1 <- #238 <oV[[wl
DO ,1 SUB #2 <- #112 i q oXku
DO ,1 SUB #3 <- #112 ^+v1[U@
DO ,1 SUB #4 <- #0 g(;OUkj$Zp
DO ,1 SUB #5 <- #64 :8hI3]9
DO ,1 SUB #6 <- #238 Rb. vyQ
DO ,1 SUB #7 <- #26 6>oc,=MV/
DO ,1 SUB #8 <- #248 dR;N3KwY
DO ,1 SUB #9 <- #168 #o7)eKeQ
DO ,1 SUB #10 <- #24 cjJfxD&q
DO ,1 SUB #11 <- #16 }Z FoCMM
DO ,1 SUB #12 <- #158 |w54!f6w_
DO ,1 SUB #13 <- #52 /t`\b
[
PLEASE READ OUT ,1 cz{`'VN}`
PLEASE GIVE UP ge:a{L
&)gc{(4$
=y _KL
Java *OznZIn
public class Hello BAY e:0
{ I`H&b&
.`
public static void main(String[] args) 8V 4e\q
{ )$bF*
System.out.println("Hello, world!"); BV:Ca34&
} BQ)>}YHk
} W/hzo*o'g
x,.= VB
[l3\0e6-/
JSP F8"J<VJ7
<% ;?tH8jf>
out.print("Hello, world!"); K) fKL
%> {H)hoAenA
{+=hYB|&
P.C?/7$7Z+
MIXAL R54ae:8
TERM EQU 19 the MIX console device number I;%1xdPt
ORIG 1000 start address l nHY?y7{
START OUT MSG(TERM) output data at address MSG peBHZJ``RX
HLT halt execution HbI{Xf[6LP
MSG ALF "MIXAL" 6?~9{0
ALF " HELL" B=L!WGl<!
ALF "O WOR" (
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ALF "LD " #}+H
END START end of the program ] xHiy+
H-+U^@w
nJ]7vj,rB
Nuva 4
ZnQpKg
<..直接输出..> |1(x2x%}D^
Hello, world! |+W{c`KL
-X!<$<\y;
<..或者..> yRyXlZC
<)wLxWalF
<. dGm%If9P
// 不带换行 \} v@!PQl
? "Hello, world!" @jm +TW
@n?"*B
// 或者 41<h|WA
z$R&u=J
// 带换行 ;mQ|+|F6X
?? 'Hello, world!' ))f@9m
.> g:ky;-G8b
-Pp{aFe
pxgf%P<7
OCaml 4@3 \Ihv
let main () = c-(RjQ~M5
print_endline "Hello world!";; H'zAMGZa
#p>&|I
:?\29j#*V
Pascal iYgVSVNg
program Hello; t!Cz;ajNi
begin x\8g ICf
writeln('Hello, world!'); 4X]/8%]V
end. t3Gy *B
Os-Z_zSl6
JX&]>#6|E
Perl SNOc1c<~
#!/usr/local/bin/perl rIPfO'T?
print "Hello, world!\n"; <q$Tk,
7HH@7vpJ^
E> GmFw
PHP ?V8Fgd
<?php XXum2eA
print("Hello, world!"); -Yse^(^"s
?> mc%.
8i
8c-ys-"#
s 0Uid&qE
Pike JI]Lz1i
#!/usr/local/bin/pike 9!n95
int main() y EfAa6
{ s(3u\#P
write("Hello, world!\n"); m_oUl(pk
return 0; 'Xwv,
} ~6kF`}5
9;v3
(U+:
<Hr<QiAK
PL/I y/Y}C.IWp)
Test: procedure options(main); \Hrcf +`
declare My_String char(20) varying initialize('Hello, world!'); YGOkqI
put skip list(My_String); /)J]ItJlz
end Test; W7WHDL^
OU7OX]h
]NTQF/
Prolog !AE;s}v)0{
goal &,%n
write("hello,world!"). 4)tY6ds)r|
Jw}t~m3
Yq00<kIDJ
Python S1^/W-yoc~
#!/usr/local/bin/python _]o7iqtv
print "Hello, world!" iXo;e
f|B\Y/*X
Xydx87L/-e
REXX {AD-p!6G
say "Hello, world!" i*N2@Z[
Lm=EN%*#9
RNw#sR
Ruby bT2c&VPCE
#!/usr/bin/ruby |e@1@q(a[]
print "Hello, world!\n" Q2ne]MI
L;")C,CwQ
*uRDB9#9,
Scheme E*5aLT5!,
(display "Hello, world!") *
cW%Q@lit
(newline) ^-PYP:*
"r@#3T$
A"M;kzAfHM
sed (需要至少一行输入) z_xy*Iif
sed -ne '1s/.*/Hello, world!/p' qzxWv5UH
5A`>3w{3n
k8}fKVU;
Smalltalk ASoBa&vX
Transcript show: 'Hello, world!' a. D cmy{
W?zj^y[w
!`=iKe&%E
SNOBOL <}~
/. Cx
OUTPUT = "Hello, world!" 18%$Z$K,
END seK;TQ3/7
VdM Ksx`r
u->[y1JY
SQL V=+|]`
create table MESSAGE (TEXT char(15)); qbq2Bi'a
insert into MESSAGE (TEXT) values ('Hello, world!'); HLDv{G'7
select TEXT from MESSAGE; Zj]tiN f\"
drop table MESSAGE; B">Ko3
[rcM32
:!Q(v(M
Tcl JJ)
#!/usr/local/bin/tcl VO:
puts "Hello, world!" jG`PyIgw
dLH@,EKl)
GPh;r7xg6
TScript ]SA/KV
? "Hello, world!" v2]N5
?SYmsaSr5
,x&WE@tD|
Turing @*xP A
put "Hello, world!" I_8 n>\u
-!~pa^j
RjUrpS[I
UNIX-style shell h~sTi
程序中的/bin/sh可改为您使用的shell o<48' >[
J#wf`VR%
#!/bin/sh bz nMD
echo 'Hello, world!' \Kui`X
ck
`td%
YR\(*LJL
GUI *^[6uaa
Xmmj.ZUr
Delphi x4kQG e(
program HelloWorld; [g"nu0sOK
uses NKFeND
Dialogs; <Af&Q0J
begin ] rqx><!
ShowMessage('Hello, World!'); ~P}ng{x4z
end. cy6YajOk7
TW 1`{SM
s7}-j2riq
Nuva m\&99-j:@b
<. 3%9XJ]Qao
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) |a7Kn/[`,
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