“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。 dVVvG]
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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》。 ?mYV\kDt\
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以下是用不同语言写成的Hello World程序的几个例子: N
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Ada P96Cw~<Q?
with Ada.Text_Io; use Ada.Text_Io; >|_gT%]5
procedure Hello is y13CR2t6
begin D)*_{
Put_Line ("Hello, world!"); F`;TU"pDf
end Hello; g~Nij~/
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f`u5\!}=!
汇编语言 XgiI6-B~
^;)SFmjg%
x86 CPU,DOS,TASM ]m/@wW9
MODEL SMALL "lU]tIpCu
IDEAL c;b[u:>~-
STACK 100H hHfe6P
|
} `>J6y9
DATASEG ,WO%L~db
HW DB 'Hello, world!$' t7*G91Hoq&
mq{$9@3
CODESEG )WP]{ W)r
MOV AX, @data >uyeI&z
MOV DS, AX c69U1
MOV DX, OFFSET HW s=q%:uCO
MOV AH, 09H sxN>+v11z
INT 21H l${Hgn+
MOV AX, 4C00H h=v[i!U-eY
INT 21H [NCXn>Z
END
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s]F?=yEp
}"&n[/8~
x86 CPU,GNU/Linux,NASM f*|8n$%
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ubzb
;Enter this into "hello.asm" then type: {hvQ<7b
;"nasm -f elf hello.asm" fz<|+(_>J
;"ld hello.o -o hello" taWirqd9
;"./hello" d739UhKC
rSF;Lp)}
section .data ;data section declaration m0%iw1OsH%
msg db 'Hello World!',0AH /^z/]!JG:V
len equ $-msg ;string length LM"W)S
'FPcAW^8
section .text ;code section declaration 45r]wT(C
global _start ;entry point (start of execution) vu_>U({.
T
_start: mov edx,len ;string length =A0"0D{\
mov ecx,msg ;string start @sB}q 6>
mov ebx,1 ;file handle: stdout Qb6QXjN
Q
mov eax,4 ;sys_write (6ohrM>Q
int 80h ;kernel system call vk4C_8m
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mov ebx,0 ;return value d5w_[=9U
mov eax,1 ;sys_exit DqurHQ z)m
int 80h ;kernel system call Ad}-I%Ie
.^[fG59
Jo7fxWO_g
x86 CPU,Windows,MASM32 DU/9/ I?~
.386 ]b0zkoD9<
.model flat,stdcall Zzw}sZ?8
option casemap:none t5ny"k!
;Include 文件定义 lQp89*b?=U
include windows.inc AND7jEn
include user32.inc R\9>2*w
includelib user32.lib dT0^-XSY
include kernel32.inc vWqyZ-p,q
includelib kernel32.lib vI
pO/m.3
;数据段 3t"~F%4-}
.data
nR,Qm=;
szCaption db 'A MessageBox!',0 <O,'5+zG%
szText db 'Hello,world!',0 ++Rdv0~
;代码段 M&|sR+$^
.code S4l)TtY
start: dJdD"xj
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK G zJ9N`
invoke ExitProcess,NULL {+@ms$z
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> QmWC2$b
end start /32Ta
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K:>NGGY8r
AWK L<f-Ed9|
BEGIN { print "Hello, world!" } tl{]gz
ql!5m\
_%A/ )
BASIC '\ph`Run
传统版BASIC(例如GWBASIC): 8_^'(]
uD.
10 PRINT "Hello, world!" >Jm-2W5J
20 END iN:G/ss4O
7%:??*"~
或在提示符输入: Qq`3S>
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?"Hello, world!":END SKB@
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现代版BASIC(例如Quick BASIC): R7E]*:0}
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Print "Hello, world!" 4'+d"Ok
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以下的语句在Quick BASIC中同样有效: 96.IuwL*.s
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? "Hello,world!" 3gxf~$)?
~hS .\h
K:}h\ In
BCPL (A7T}znG
GET "LIBHDR" *)j@G:
(/T+Wpy?
LET START () BE XoDJzrL#
$( L/qZ ; {
WRITES ("Hello, world!*N") tpv?`(DDU
$) oS[W*\7'!
2LCc
[WcS[](ob
Befunge keT?,YI
"!dlrow olleH">v y,'FTP9?
, G[|3^O>P
^_@ 8pXfT%]
mBw2
umJay/>
Brainfuck `^O'V}T
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< hWe}'L-
+++++++++++++++.>.+++.------.--------.>+.>. y\[L?Rmd
i0ILb/LS
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C 5|yZEwq
#include <stdio.h> !Bag}|#
II.<S C
int main(void) l)}<#Ri
{ *}+R{
printf("Hello, world!\n"); *
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return 0; a^@+%?X
} M#=Y~PU
XZF%0g2$b
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C++ "EJ\]S]$X
#include <iostream> OZ eiHX!
S|l&fb n
int main() UP\8w#~
{ {;U} :Dx
std::cout << "Hello, world!" << std::endl; w+Ad$4Pf"
return 0; gs$3)t
} G=vN;e_$_b
g<M0|eX@~
aZ8h[#]7
C++/CLI ?(]a*~rx
int main() l#b:^3
{ 4+)Zk$E
System::Console::WriteLine("Hello, world!"); 72`/d`
} ymHKcQ
bAUHUPe
oz Vpfs
C# (C Sharp) ZQ@3P7T
class HelloWorldApp DKR<W.!*t
{ ,Yo: &>As
public static void Main() x<8\-
{ t9ER;.e
System.Console.WriteLine("Hello, world!"); >Ja0hS{*
} ggMUdlU
} &Y 'z?N
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A8J?A#R*{q
COBOL ',DeP>'%>
IDENTIFICATION DIVISION. o\d |CE;>
PROGRAM-ID. HELLO-WORLD. TV?
^c?{5
n:F@gZd`
ENVIRONMENT DIVISION. XnD0eua#
5Qb;2!
DATA DIVISION. %?@x]B9Y8E
=1O?jrl~q
PROCEDURE DIVISION. AD(xaQ&T
DISPLAY "Hello, world!". e,^pMg~
STOP RUN. }Bd_:#.mw
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V!mWn|lf
Common Lisp "@(58nk
(format t "Hello world!~%") OO$|9`a
T)`gm{T
sbzeY1
DOS批处理 9-B@GFB;8
@echo off D^N[=q99&e
echo "Hello, world!" X@cSP7b
^Wf
S\M`
g/x_m.
Eiffel 2mQOj$Lv
class HELLO_WORLD )ukF3;Gt
rYbCOazr
creation ;jF%bE3
make iL+y(]
feature r9<V%PHv
make is fa"\=V2S
local ZH% we
io:BASIC_IO v< Ty|(gd
do K@HLIuz4t
!!io W.IH#`-9E
io.put_string("%N Hello, world!") cFw3Iw"JJ
end -- make B+|IZoR
end -- class HELLO_WORLD 2f `&WUe
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9g96 d-
Erlang m.!wsw
-module(hello). jBS'g{y-!
-export([hello_world/0]). Ny]lvgu9X
r-*l1([eW
hello_world() -> io:fwrite("Hello, World!\n"). %S c=_%6
gUspGsfr
N_0pO<<cs
Forth ::ri3Tu
." Hello, world!" CR O6/xPeak
c+H)ed>
wBLsz/
Fortran &u("|O)w$
WRITE(*,10) sLNNcj(Cy>
10 FORMAT('Hello, World!') Y4`QK+~fH
STOP V>AS%lXj
END JfSdUWxT
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HTML L -YNz0A
<HTML> L(;.n>/
<HEAD> .3( ;9};
<TITLE> Hello World! </TITLE> _Cj(fFL
</HEAD> mLQUcYfR
<BODY> M= atls
<p>Hello World!</p> u"\=^F
</BODY> Xty#vI
</HTML> |J\,F.{'
%iX/y
h>| g2h
HQ9+ N70zjy4?fL
H n? }5!
'P,,<nkr|
?/)lnj)e{
INTERCAL u|T%Xy=LU
PLEASE DO ,1 <- #13 Fk aXA.JE
DO ,1 SUB #1 <- #238 v:?o3
S
DO ,1 SUB #2 <- #112 9Eu #lV
DO ,1 SUB #3 <- #112 sLZ>v
DO ,1 SUB #4 <- #0 6A.P6DW
DO ,1 SUB #5 <- #64 {79qtq%W{
DO ,1 SUB #6 <- #238 *O5:
DO ,1 SUB #7 <- #26 l!/!?^8|f
DO ,1 SUB #8 <- #248 >GmN~"iJ
DO ,1 SUB #9 <- #168 QTfu: m{
DO ,1 SUB #10 <- #24 &/iFnYVhy
DO ,1 SUB #11 <- #16 >2u y
DO ,1 SUB #12 <- #158 lf6|.
DO ,1 SUB #13 <- #52 XO%~6Us^
PLEASE READ OUT ,1 *<UGgnmLE
PLEASE GIVE UP TH YVT%v
@"w2R$o
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Java VE*j*U
j
public class Hello _!%M%
{ *Er? C;
public static void main(String[] args) ]H>+m
9
{ h mds(lv7
System.out.println("Hello, world!"); yZ5x88 >
} }f]b't
} M}u1qXa
oE6|Zw
Fav^^vf*1
JSP }s(C^0x
<% ljuNs@q
out.print("Hello, world!"); 1TIlINlJ
%> Ww=O=c5uOu
%EWq2'/5
:pb67Al29
MIXAL ;$z7[+M
TERM EQU 19 the MIX console device number P2t_T'R}
ORIG 1000 start address E0<)oQ0Xa>
START OUT MSG(TERM) output data at address MSG "ee'2O
HLT halt execution zA,/@/'(
MSG ALF "MIXAL" s%^o*LQ|9
ALF " HELL" (![t_r0
ALF "O WOR" Ox|TMSb^
ALF "LD " _0.pvQ
END START end of the program >(OYK}ZN
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Nuva (_U^
<..直接输出..> -,|ha>r
Hello, world! -Uri|^t
ZL=N[XW4'
<..或者..> -~\f2'Q
L{<7.?{Y
<. j %H`0
// 不带换行 <XvYa{t]{
? "Hello, world!" JtFiFaCxY
@C=M
UT-!
// 或者 ZtR&wk
/p 5=i
// 带换行 vf N#NY6
?? 'Hello, world!' &wb9_?ir-
.> !)nD xM`p
I-bF{
M/} aq
OCaml R:f7LRF/\
let main () = -%H%m`wD
print_endline "Hello world!";; [IMQIX
:/i~y $t
r@yD8 D \
Pascal ami09JHy
program Hello; +9C;<f
begin RG&6FRoq
writeln('Hello, world!'); 1}nm2h1 I
end. Oy%Im8.-A#
:!']p2B
:~D];m
Perl U!0E_J
#!/usr/local/bin/perl hbfsHT
print "Hello, world!\n"; p-Pz=Cx-
[;FofuZ
?@DNsVwb
PHP nj
<?php E(;i>
print("Hello, world!"); q#'VJA:A5&
?> p[-{]!
k}U
JVH21k
N+J>7_k
Pike HCazwX
#!/usr/local/bin/pike nE7JLtbH
int main() SOj`Y|6^:
{ X4'kZ'Sy<
write("Hello, world!\n"); OXCQfT@\
return 0; r0{]5JZt/
} :".w{0l@
R8 jovr
0;<OYbm3<
PL/I cgN>3cE
Test: procedure options(main); auL^%M|$R
declare My_String char(20) varying initialize('Hello, world!'); |Euus5[
put skip list(My_String); K:_($X]
end Test; 0+j}};
fGTOIi@#
HY*\ k#
Prolog Nxi)Q$
goal I7zn>^0}
write("hello,world!"). JiA'BEJN
v)+@XU2wZ
"Yby
Python t!t=|JNf{
#!/usr/local/bin/python 6v>z h
print "Hello, world!" \igaQ\~
(tKMBxQo8
`pm>'
REXX ;RHNRVP
say "Hello, world!" e "n|jRh
hDvpOIUL1
Gkmsaf>
Ruby "lrA%~3%[P
#!/usr/bin/ruby N,|r1u 9X#
print "Hello, world!\n" }dKLMNqPA
xqv[?
?
.Q[yD<)Ubs
Scheme F.
T@)7
(display "Hello, world!") 'Sa!5h
(newline) mgcN( n1
v|&s4x?D
,C:o`fQ\
sed (需要至少一行输入) ]EN&S Wh
sed -ne '1s/.*/Hello, world!/p' $20s]ywS
~-<:+9m
EY$?^iS
Smalltalk $"fzBM?5
Transcript show: 'Hello, world!' LM6]kll
sUciFAb
'hIU_
SNOBOL
tT-=hDw
OUTPUT = "Hello, world!" L[]BzsIv
END x8/us
ERC<Dd0
lwJip IO
SQL 8K^f:)Qw
create table MESSAGE (TEXT char(15)); aDveU)]=1
insert into MESSAGE (TEXT) values ('Hello, world!'); n_P(k-^U*
select TEXT from MESSAGE; }p{;^B
drop table MESSAGE; *8UYS A~v
yoU2AMH2D^
1R^4C8*B
Tcl }#
Xi`<{
#!/usr/local/bin/tcl S_5?U2%D
puts "Hello, world!" (yGQa5v
2GUupnQkD
aTClw<6}
TScript WHk/$7_"i
? "Hello, world!" G"> 0]LQ
2-s 7cXs
OZT^\Ky_l
Turing S&01SX6
put "Hello, world!" jsZY{s=
pl\b-
4>k
I^
UNIX-style shell -[$&s FD
程序中的/bin/sh可改为您使用的shell JY@X2'>v/
WIG=D{\Yx
#!/bin/sh Tq#<Po $
echo 'Hello, world!' =G>.-Qfs
(3O1?n[n
@h(!<Ux_
GUI c'rd $
kwF] TO
S
Delphi [>p6
program HelloWorld; b0YNac.l
uses \u8,!) 4i
Dialogs; [-58Ezyr
begin $?$9y^\
ShowMessage('Hello, World!'); @/(@/*+"
end. LzE/g)>
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ZqP7@fO_%
Nuva #TATqzA
<. +c r
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) &