“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。 GWfL
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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》。 B6={&7U2
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以下是用不同语言写成的Hello World程序的几个例子: !z>6Uf!{
Ada 2'w?\{}D
with Ada.Text_Io; use Ada.Text_Io; \.-bZ$
procedure Hello is ?32&]iM
oW
begin w(L4A0K[
Put_Line ("Hello, world!"); +~p88;
end Hello; ,y#Kv|R
o2F)%T DY
?{[
v+t#
汇编语言 J\b^)
y gz6C
x86 CPU,DOS,TASM A*\.NTM
MODEL SMALL z:wutqru
IDEAL %%[LKSTb
STACK 100H x<ZJb
-Fe?R*-g
DATASEG #pnI\
HW DB 'Hello, world!$' )P
sY($ &
Bx<
<~[Ws}
CODESEG lNYt`xp
MOV AX, @data @u6B;)'l
MOV DS, AX M<v%CawS
MOV DX, OFFSET HW t7aefV&_,
MOV AH, 09H :/nj@X6
INT 21H cPlZXf
MOV AX, 4C00H H*PSR
INT 21H
;{N!Eb`S
END fumm<:<CLO
U2W|:~KM
SHfy".A6.0
x86 CPU,GNU/Linux,NASM \XZ/v*d0
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ds<2I,t
;Enter this into "hello.asm" then type: ``hf=`We
;"nasm -f elf hello.asm" ~x1$h#Cx'
;"ld hello.o -o hello" !2f[}.6+
;"./hello" asppRL||
R\!2l|_
section .data ;data section declaration I=`U7Bis"
msg db 'Hello World!',0AH Fj2BnM3#
len equ $-msg ;string length ;~m8;8)
,s"^kFl
section .text ;code section declaration #V~me
global _start ;entry point (start of execution) a.k.n<
_start: mov edx,len ;string length 0Qf,@^zL*
mov ecx,msg ;string start P/W
XaE4
mov ebx,1 ;file handle: stdout [M=7M}f;
mov eax,4 ;sys_write QTk}h_<u
int 80h ;kernel system call !$gR{XH$]
GjvOM y
mov ebx,0 ;return value VA#"r!1
mov eax,1 ;sys_exit I&x=;
int 80h ;kernel system call 9y"@(
i9,geQ7d
p8Qk'F=h
x86 CPU,Windows,MASM32 fHx*e'eA
.386 v dc\R?
.model flat,stdcall ek*rp`y]
option casemap:none x??+~$}\*-
;Include 文件定义 | ATvS2
include windows.inc +%h8r5o1
include user32.inc c(xrP/yOwi
includelib user32.lib Ng2twfSl$
include kernel32.inc Z 2V.3
includelib kernel32.lib L>Fa^jq5
;数据段 Yg||{
.data Ga^"1TZ x
szCaption db 'A MessageBox!',0
iu=7O
szText db 'Hello,world!',0 8;RUf~q?
;代码段 K0|FY=#2y
.code 2*laAB
start: #A JDWelD
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 3u+T~g0^
invoke ExitProcess,NULL U:0mp"
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> V^bwXr4f
end start 6
ob@[ @
p>v$FiV2N
3M[!N
AWK ZbW17@b
BEGIN { print "Hello, world!" } Y!w`YYKP
wd8l$*F*
*&^Pj%DX
BASIC B"1c
传统版BASIC(例如GWBASIC): Bq%Jh
|4;Fd9q^m
10 PRINT "Hello, world!" ,~N/- 5
20 END IL#"~D?
wDal5GJp
或在提示符输入: l[0RgO*S
k8&;lgO'
?"Hello, world!":END nS }<-s
Fo5FNNiID
现代版BASIC(例如Quick BASIC): {HltvO%8
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Print "Hello, world!" 5H<m$K4z
6
$4[gcL'
以下的语句在Quick BASIC中同样有效: ;"5&b!=t
l*(8i ^
? "Hello,world!" M2,l7
NX*Q F+
%S960
BCPL ZB=
E}]v6
GET "LIBHDR" [Kg+^N%+
u&Yz[)+b=g
LET START () BE qd ~BnR$=
$( ;#W2|'HD
WRITES ("Hello, world!*N") 5}l[>lF
$) u5`u>.!
-:+|zF@f
6jD=F ^jw
Befunge r=
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"!dlrow olleH">v oGnSPI5KGC
, we//|fA<
^_@ cJ=6r
:
M6"PX *K
RLjc&WhzXu
Brainfuck iy.p n
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< @alK;\
+++++++++++++++.>.+++.------.--------.>+.>. zZPO&akB"
mp1@|*Sn
pK>N-/?a
C XJ;57n-?
#include <stdio.h> X]TG<r
Tv,[DI +
int main(void) O3,jg|,
{ TQF| a\M'
printf("Hello, world!\n"); EeE7#$l
return 0; D0-3eV-
} &-)N'
0*3R=7_},o
/l~p=PK
C++ Cv.C;H
#include <iostream> lfow1WRF
*w`sM%]Rq
int main() Z"xvh81P
{ 2*& ^v
std::cout << "Hello, world!" << std::endl; q
'yva
return 0; A:%`wX}
} rH Lm\3
&jJL"gq"
6Pl<'3&
C++/CLI F0TB<1
int main() AO4U}?
{ ,?%Zc$\LW
System::Console::WriteLine("Hello, world!"); b4 6~?*
} +Mb.:_7'
Rh{f5-
eF$x 1|
C# (C Sharp) JG rWHIsNV
class HelloWorldApp %$Tji
{ "%w u2%i
public static void Main() x=P\qjSa
{ By!o3}~g
System.Console.WriteLine("Hello, world!"); m+[Ux{$
} VscE ^'+
} zR:L!S
Ax7[;|2
rglXs
COBOL gPI
?C76
IDENTIFICATION DIVISION. K($Npuu]
PROGRAM-ID. HELLO-WORLD. (y~TL*B
mO7]9p
ENVIRONMENT DIVISION. +~$ ]}%
!wVM= z^G
DATA DIVISION. sY&IquK^
j</: WRA`]
PROCEDURE DIVISION. Wqw1J=]
DISPLAY "Hello, world!". *i%.;Z"
STOP RUN. %5n_
p^xp
Xl#ggub?
E{`fF8]K
Common Lisp 45c$nuZ
(format t "Hello world!~%") *])
`z8Ox
]h+j)J}[A
qR8Lh( "i
DOS批处理 FcU SE
@echo off uw_Y\F-$
echo "Hello, world!" R&k<AZ
8OU\V5i[,q
7`'Tb p
Eiffel "<1{9
class HELLO_WORLD }&J q}j
{4Cmu;u
creation FvjPdN/L?R
make '-~~-}= sJ
feature 7R\<inCQ
make is @RKryY)
local zRr*7G
io:BASIC_IO #)O65GI
do aX'*pK/-
!!io sDlO#
io.put_string("%N Hello, world!") aEeodA<(
end -- make Z@!+v19^
end -- class HELLO_WORLD e*NnVys
/nA{#HY
VpDbHAg
Erlang BW4J> {
-module(hello). iqWQ!r^
-export([hello_world/0]). ggR.4&<
6LIJQ
hello_world() -> io:fwrite("Hello, World!\n"). HIZe0%WPw
rg!r[1c
rjYJs*#
Forth 0x@
mZ
." Hello, world!" CR OQJ6e:BGt
W/h[A3 `3N
}K|oicpUg
Fortran |@d\S[~ ^G
WRITE(*,10) NC(~l
10 FORMAT('Hello, World!') zQd
2
STOP )+DmOsH
END 8{sGNCvU
_-g&PXH
#@Jq~$N|
HTML UP,c |
<HTML> %7+qnH*;r
<HEAD> }o`76rDN
<TITLE> Hello World! </TITLE> H G^'I+Yn
</HEAD> _q-*7hCQ`
<BODY> `b$.%S8uj=
<p>Hello World!</p> L4nYXW0y
</BODY> wbl&
</HTML> ZD{LXJ{Vm
6j}9V
L77
4,DeHJjAlE
HQ9+ t b}V5VH
H /k3:']G,s
( a#BV}=
v.qrz"98-
INTERCAL &tj!*k'
PLEASE DO ,1 <- #13 4.t-i5
DO ,1 SUB #1 <- #238 ^ [@,
DO ,1 SUB #2 <- #112 Ysv"
6b}
DO ,1 SUB #3 <- #112
ew4U)2J+
DO ,1 SUB #4 <- #0 Gk6iIK
DO ,1 SUB #5 <- #64 >z@0.pN]7
DO ,1 SUB #6 <- #238 ZJiG!+-j
DO ,1 SUB #7 <- #26 S)@j6(HC4
DO ,1 SUB #8 <- #248 G4"F+%.
DO ,1 SUB #9 <- #168 5r^(P
DO ,1 SUB #10 <- #24 Cw&KVw*
DO ,1 SUB #11 <- #16 H qx-;F~0
DO ,1 SUB #12 <- #158 utV_W&
DO ,1 SUB #13 <- #52 0</);g}
PLEASE READ OUT ,1 UkFC~17P
PLEASE GIVE UP ,z=LY5_z)
VI*$em O0
GZIa4A
Java }O
p;
g^W
public class Hello u>vL/nI
{ (#c:b
public static void main(String[] args) 9hyn`u.
{ )8ZH-|N`!E
System.out.println("Hello, world!"); qJ-/7-$ ^
} CU!Dhm/U
} AA>P`C$&M
2D5StCF$O
La[V$+Y
JSP [Y `W
<% ]7A'7p$Y
out.print("Hello, world!"); 493*{
%> 7b+6%fV
?}Y]|c^W
YN5rml'-
MIXAL pd$[8Rmj_
TERM EQU 19 the MIX console device number a d\ot#V
ORIG 1000 start address 4_ML],.
START OUT MSG(TERM) output data at address MSG 6_B]MN!(
HLT halt execution }^\oCR@
MSG ALF "MIXAL" ~a2}(]
ALF " HELL" !dq.KwL
ALF "O WOR" kyV8K#}%8
ALF "LD " "#g}ve,
END START end of the program E!F^H^~$8
&UFZS94@r
~wdGd+ez
Nuva cU
<..直接输出..> gjlx~.0d
Hello, world! +lTq^4
~"A0Rs=
<..或者..> c &c@M$
0> \sQ,T
<. yB!dp;gM{
// 不带换行 ?e?!3Bx;EM
? "Hello, world!" t_1LL >R
/x *3}oI
// 或者 \w8\1~#
7d\QB(~
// 带换行 K(|}dl:
?? 'Hello, world!' @O~pV`_tD
.> lU]nd[x
R.3q0yZ
wF
+ZX{>:vo
OCaml # f\rt
let main () = 8 zb/xP>
print_endline "Hello world!";; n=q76W\
7xR\kL.,
_#8MkW#]~
Pascal "J1
4C9u
program Hello; -G=]=f/'
begin 2fS:-
8N
writeln('Hello, world!'); vih9KBT
end. ~VB1OLgv#.
Dt1jW
5:?!=<=
Perl J.%IfN
#!/usr/local/bin/perl \{D"
!e
print "Hello, world!\n"; 7j{?aza
),!qTjD
B-mowmJ3dg
PHP }-2|XD%]
<?php |':{lH6+1
print("Hello, world!"); Y4YJJYvD
?> .RL=xb|[
}QmqoCAE~m
(h
`V+
Pike xYB{;K
#!/usr/local/bin/pike nr3==21Om4
int main() `GLx#=Q
{ 1.>m@Slr>
write("Hello, world!\n"); ptaKf4P^r
return 0; O".=r}
} QsW/X0YBv
Fj!U|l\_9
H;"4C8K7
PL/I !`r$"}g
Test: procedure options(main); )M^
gT}M
declare My_String char(20) varying initialize('Hello, world!'); ]_$[8#kg
put skip list(My_String); p]"4#q\(
end Test; &e3.:[~_?
4&iCht
=
vKR[&K{Z|
Prolog "wc<B4"
goal tl>7^hH
write("hello,world!"). ss-D(K"
}K9H^H@r!
d d;T-wa}
Python %jM,W}2
#!/usr/local/bin/python 3$JoDL(Z
print "Hello, world!" P93@;{c(
6H|S;K+
;n},"&
REXX sR8"3b<qA
say "Hello, world!" 3gf1ownC
| f##5fB
%
u6Sr5A[s
Ruby :v 4]D4\o
#!/usr/bin/ruby paMa+jhQQ
print "Hello, world!\n" FgO)DQm
#LCb
LgYq.>Nl9
Scheme [00m/fT6
(display "Hello, world!") $od7;%
(newline) %XTI-B/K
2T`!v
yLcEX
sed (需要至少一行输入) rM"l@3hP
sed -ne '1s/.*/Hello, world!/p' OrG).^l
1:wQ.T
K|@G t%Y
Smalltalk .e5Mnd%$M
Transcript show: 'Hello, world!' 1 {)Q[#l
\j.:3Xr
@ .KGfNu
SNOBOL wNX]7wMX
OUTPUT = "Hello, world!" ?%kV?eu'
END NuI9iU
QCJM&
I?NyM
SQL DL.!G
create table MESSAGE (TEXT char(15)); 'f|o{
insert into MESSAGE (TEXT) values ('Hello, world!'); 3M=
select TEXT from MESSAGE; /7LR;>B j
drop table MESSAGE; ET >](l9
uIrG* K
|&jXp%4T
Tcl w=@Dv
#!/usr/local/bin/tcl YoE3<[KD(
puts "Hello, world!" JN6B~ZNf
'm9` 12H
uVU)d1N
TScript zn(PI3+]!
? "Hello, world!" P>6{&(
k_R"CKd
`,0}ZzaV&
Turing tI{_y
put "Hello, world!" y!%CffF2
?hM64jI|
/Q )\ +
UNIX-style shell 3ANQaUC
程序中的/bin/sh可改为您使用的shell A(N4N
\di=
#!/bin/sh RGX=)
echo 'Hello, world!' c"xK`%e
\(T/O~b2
,=N.FS
GUI k+4#!.HX^
Cls%M5MH
Delphi 07 $o;W@
program HelloWorld; xwty<?dRW1
uses |)G<,FJQE_
Dialogs; (tQc
begin vcd\GN*4f
ShowMessage('Hello, World!'); {BHO/q3
end. [SW_C
PxE3K-S)G
\|ao`MMaD<
Nuva v.ui!|c
<. b u"!jHPB
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 0|b>I!_"g
.> &VcV$8k
1i] ^{;]
FCn_^l)EA
Visual Basic ;UP $yM;
MsgBox "Hello, world!" wvPk:1wD5
'或者 i 3SHg\~Z
Print "Hello, world!" ;S*}WqP,
m#F`] {
&t-kpA|EG
Visual FoxPro ---N9I
? "Hello, world!" f
V( J|
x3krbUlx
4H<lm*!^
X11 gzg_>2Sj
用一个程序 rXU\
DFTyMB1H
xmessage 'Hello, world!' \^%}M!tan
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