“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。 |:BKexjHL
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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》。 Ysbd4rN
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以下是用不同语言写成的Hello World程序的几个例子: F9@,T8I
Ada &.J8O+
with Ada.Text_Io; use Ada.Text_Io; A(zF[\{]
procedure Hello is ;43Ye
^=
begin VrLU07"0n
Put_Line ("Hello, world!"); ~b;l08 <
end Hello; D1]%2:
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\
汇编语言 hqrI%%
S81Z\=eK
x86 CPU,DOS,TASM +EK(r@eV
MODEL SMALL 5{/CqUIl
IDEAL XHU&ix{Od
STACK 100H hiO:VA
_yk}
[x0>
DATASEG M0VC-\W7f
HW DB 'Hello, world!$' xEdCGwgp#
`7_=2C
CODESEG DID&fj9m
MOV AX, @data Au3>=x`
MOV DS, AX 9DcUx-
MOV DX, OFFSET HW 3yg22y&l
MOV AH, 09H O92a*)
INT 21H jm9J-%?
MOV AX, 4C00H o8B_;4uB
INT 21H AKs=2N>7
END $Lg%CY
rw_T&>!
dayp1%d
x86 CPU,GNU/Linux,NASM 6QS[mWU
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). !9|)v7}
;Enter this into "hello.asm" then type: DE"KbA0}
;"nasm -f elf hello.asm" EXn$ [K;
;"ld hello.o -o hello" Y8!T4dkn
;"./hello" L(tS]yWHw
\|^fG9M~
section .data ;data section declaration %~%1Is`4J
msg db 'Hello World!',0AH y\0<f `v6
len equ $-msg ;string length w20E]4"
`.>5H\w0e
section .text ;code section declaration Fq3[/'M^
global _start ;entry point (start of execution) wUkLe-n,dE
_start: mov edx,len ;string length KQ'fp:5|/@
mov ecx,msg ;string start jCdKau&9
mov ebx,1 ;file handle: stdout HRS|VC$tz
mov eax,4 ;sys_write SjgF&LD
int 80h ;kernel system call *4}lV8
S~^0
_?
mov ebx,0 ;return value <qZ"W6&&
mov eax,1 ;sys_exit Q|eRek
int 80h ;kernel system call $tvGS6p>
q@ !p
+<&\*VR
x86 CPU,Windows,MASM32 Vlb L
p;
.386 _J^q|
.model flat,stdcall 7+]T}4;
option casemap:none T3
xr Ua&
;Include 文件定义 `< 8Fc`;[
include windows.inc BOqq=WY
include user32.inc dbU
includelib user32.lib CORX .PQ
include kernel32.inc 5MY+O\
includelib kernel32.lib V+M2Gf
;数据段 "o#N6Qu71
.data -f?Rr:#
szCaption db 'A MessageBox!',0 + wd} '4)
szText db 'Hello,world!',0 ]:TX> X!
;代码段 ),`MAevp
.code bqY}t. Y&"
start: 0[6llcuj
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 7O5`&Z'-
invoke ExitProcess,NULL $4.mRS97g
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 1lRqjnzve&
end start 6S?a57;&W
dIv/.x/V
6GzmzhX4
AWK E\!:MCL
BEGIN { print "Hello, world!" } %8iA0t+
M
(dVY/ i
I\V33Nd
BASIC Sd'Meebu
传统版BASIC(例如GWBASIC): PHRc*G{
X'N4a
10 PRINT "Hello, world!" <LM<,
20 END iqf+rBL
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或在提示符输入: 2=tPxO')B
Y{y #us1
?"Hello, world!":END ^EU&6M2
'R6D+Vk/
现代版BASIC(例如Quick BASIC): @'[w7HsJ
QI>yi&t
Print "Hello, world!" QC>I<j&`!
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以下的语句在Quick BASIC中同样有效: E&0A W{
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? "Hello,world!" U@[P.y~J
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ko!38BH`/
BCPL qS{lay
GET "LIBHDR" ,u QLXF2
*|AnL}GJ
LET START () BE xXO& -v{
$( 8 g'9( )&
WRITES ("Hello, world!*N") 2a*1q#MpAt
$) :0ND0A{K:
ia|^>V>-
%_+9y??
Befunge `xe[\Z2
"!dlrow olleH">v :7Mo0,Bw,
, RLY Ae
^_@ >>krH'79
Y5LESZWo
P,AS`=z
Brainfuck `h5HA-ud
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Mr:*l`b_
+++++++++++++++.>.+++.------.--------.>+.>. lj%8(X u
`(aU_r=
4,f[D9|:
C (]j*)~=V
#include <stdio.h> Fy-nV%P
Sw#Ez-X
int main(void) x@.iDP@(
{ qM@][]j:
printf("Hello, world!\n"); DMcvu*A
return 0; xTD6?X'4
} O60j C;{F
IgEg
5WP[-J)
C++ 9}X3Q!iFb
#include <iostream> ;~z>GJox
8s8q`_.)(
int main() uW;Uq=UN
{ =B1t?("
std::cout << "Hello, world!" << std::endl; h0n0Dc{4
return 0; k_V1x0sZ
} ,Z_nV+l_
F-k1yZ?^
8!>uC&bE8
C++/CLI DS>s_3V
int main() M;zRf3S
{ SrK;b .
System::Console::WriteLine("Hello, world!"); doc5;?6
} fFXs:(
~2@U85"o
K *vNv4
C# (C Sharp) V2w[0^L
class HelloWorldApp {z@vSQ=)=P
{ G+[>or}
public static void Main() aC3\Hs
{ avO+1<`4B
System.Console.WriteLine("Hello, world!"); ABhza|
} voQ, K9
} oBqP^uT>a|
Fh v)
%n}fkj'
COBOL {KwLcSn
IDENTIFICATION DIVISION. /7S]%UY
PROGRAM-ID. HELLO-WORLD. +KFK..
aSHZR
ENVIRONMENT DIVISION. y#AY+
>
&[cL%pP
DATA DIVISION. w])~m1yW
>4M_jC.
PROCEDURE DIVISION. N_pJE?
DISPLAY "Hello, world!". q(.%f3(
STOP RUN. rF~q"9
+*0THol-
|&n dQ(!l
Common Lisp AaTtYd
(format t "Hello world!~%") O-T/H-J`
u.hnQsM
=5Q;quKu^5
DOS批处理 *kyy''r
@echo off 8" 8{Nf-"
echo "Hello, world!" xDADJ>u2K
mSQ!<1PM
yvDzxu
Eiffel 4vqu(w8
L
class HELLO_WORLD T>f-b3dk
)STt3.
creation _%zU^aE
make W]Ph:O^5c
feature PYz| d
make is {##A|{$3%
local |xKB><
io:BASIC_IO ;;nmF#
do D@
=.4z
!!io vMRKs#&8
io.put_string("%N Hello, world!") 2DV{gF
end -- make ui 2RTAb
end -- class HELLO_WORLD GMNf#;x
r456M-~
_%1.D0<~-E
Erlang 38'H-]8q"
-module(hello). APc@1="#J
-export([hello_world/0]). *DNH_8m
,+'f unH
hello_world() -> io:fwrite("Hello, World!\n"). ZN4&:9M
_cGiuxf
#
_l8oB)
Forth IL%&*B
." Hello, world!" CR W2^eE9
aO<d`DTyJ
nAts.pVy"
Fortran xD1wHp!+
WRITE(*,10) Y(A?ib~K
10 FORMAT('Hello, World!') "R9kF-
STOP N@d4)
END in+`zfUJ9
{?L}qV
YYM
HTML (U.&[B
<HTML> ;N1FP*
<HEAD> k2+Z7#2n
<TITLE> Hello World! </TITLE> y4?>5{`W
</HEAD> @K+u+}
R
<BODY> (Q&z1XK3
<p>Hello World!</p> a9qZI
</BODY> g)p[A 4
</HTML> %##9.Xm6l
1^W Aps
E;|\?>
HQ9+ 5
+
Jy
H Sv>aZ
x)Th2es\
%vThbP#mR|
INTERCAL _9gn;F
PLEASE DO ,1 <- #13 C3<3
DO ,1 SUB #1 <- #238 [X=eCHB?
DO ,1 SUB #2 <- #112 ^al
SyJ`
DO ,1 SUB #3 <- #112 >C&!#
3
DO ,1 SUB #4 <- #0 hOC,Eo
DO ,1 SUB #5 <- #64 vcSS+
DO ,1 SUB #6 <- #238 TX+t
DO ,1 SUB #7 <- #26 #UI`G3w<
DO ,1 SUB #8 <- #248 }}xR?+4A
DO ,1 SUB #9 <- #168 -OW$
DO ,1 SUB #10 <- #24 ~,guw7F
DO ,1 SUB #11 <- #16 "yz@LV1
DO ,1 SUB #12 <- #158 ~g,QwaA[
DO ,1 SUB #13 <- #52 T(}da**X
PLEASE READ OUT ,1 kN) pi "
PLEASE GIVE UP *lTu-
JC+VG;kcs
w'eenIX^^
Java ;s!H
public class Hello 07MLK8jS
{ #nxx\,i>
public static void main(String[] args) u4nXK
<KL|
{ xAO]u[J
System.out.println("Hello, world!"); h7w<.zwu
t
} U!`'Qw;
} ]f c:CR
q>X:z0H
\ lKQ'_
JSP <;T7qEIlo
<% @kK=|(OB'
out.print("Hello, world!"); s1FBz)yCY=
%> *w6N&
PDsLJ|:yL
N1-LM9S
MIXAL >@|<1Fx|
TERM EQU 19 the MIX console device number -Tt}M#W
ORIG 1000 start address $k?L?R1
START OUT MSG(TERM) output data at address MSG >*(>%E~H
HLT halt execution ~@O4>T+VW
MSG ALF "MIXAL" %In"Kh*
ALF " HELL" u`~{:V
ALF "O WOR" GhT7:_r~
ALF "LD " `fRy"44nR
END START end of the program FSB$D)4z>b
g\Zk*5(
aD^MoB3
Nuva g:)vthOs
<..直接输出..> +Oscy-;
Hello, world! e{O5y8,
2n=;"33%a
<..或者..> {V&7JZl,/
i@6
/#
<. EpfmH `
// 不带换行 %!S
? "Hello, world!" uj@<_|7
4s8E:I=K
// 或者 >tzXbmFp;
_7 ;^od=C
// 带换行 #+G2ZJxL|
?? 'Hello, world!'
Y[DKj!v
.> ,+RO 5n
cmeyCyV*
N'1~ wxd
OCaml P(;c`
let main () = Hn~1x'$
print_endline "Hello world!";; 6b|`[t
ChGM7uu2
gK( 4<PO'
Pascal NZuFxJ-`
program Hello; THp `!l
begin Y Pc<
writeln('Hello, world!'); <7^~r(DP
end. rZv+K/6*M
yDC97#%3u
E-D5iiF
Perl Uk9g^\H<D
#!/usr/local/bin/perl abnd U,s
print "Hello, world!\n"; #77UKYj2L-
NjxW A&[ng
m+UdT854
PHP g@k9w{_
<?php 4:'] 'E
print("Hello, world!"); xNkY'4%
?> \7/_+)0}'
G= cxc_9
l/^-:RRNKi
Pike 8957$g
#!/usr/local/bin/pike Y
zS*p~|
int main() D3{lyi|8
{ ;Y^RF?un
write("Hello, world!\n"); <^Tj}5)n
return 0; <T[N.mB
} *F*X_O
zf~zYZSr
t]
wM_]+
PL/I to 6Q90(
Test: procedure options(main); y7OG[L/
declare My_String char(20) varying initialize('Hello, world!'); BT3O_X`u
put skip list(My_String); @E2nF|N
end Test; (Y)h+}n5N
?m1$*j
;l ()3;
Prolog LDeVNVM
goal \T9UbkR
write("hello,world!"). \<B6>
!@{[I:5
SZ{cno1`
Python >EtP^Lu~f_
#!/usr/local/bin/python C4tl4df9
print "Hello, world!" dA/o4co
|vz;bJG
zDyeAxh4
REXX e0HP~&BRs
say "Hello, world!" !d.>r
7w
!^fR8Tp9
dY<#a,eS
Ruby ; ZV^e
#!/usr/bin/ruby ;|QR-m2/
print "Hello, world!\n" acY[?L_6J
v:MS0]
2TEeP7
Scheme RCYbRR4y
(display "Hello, world!") "n }fEVJ,
(newline) [9om"'
/'6[*]IZP
lhl0
sed (需要至少一行输入) HF+fk*_Q
sed -ne '1s/.*/Hello, world!/p' *u'`XRJU/
Wmxw!
$S8bp3)
Smalltalk +A ?+G
Transcript show: 'Hello, world!' Q 02??W
$Wzv$4;
[KI`e
SNOBOL Ko|xEz=
OUTPUT = "Hello, world!" OW}j4-~wL
END 14 'x-w^~k
up3<=u{>
ysJhP .
SQL C$G88hesn
create table MESSAGE (TEXT char(15)); Q
EGanpz
insert into MESSAGE (TEXT) values ('Hello, world!'); ({kGK0
select TEXT from MESSAGE; rqe_zyc&
drop table MESSAGE; 6XL9
qb~X
>ha Ixs`9
zMzf=~
Tcl n3g
WMC
#!/usr/local/bin/tcl lkWeQ)V
puts "Hello, world!" ((>3,%B`
vKf;&`^qE
{C0^D*U:
TScript =tRe3o0(
? "Hello, world!" *Gh8nQbh
ajW$d!
k>;r9^D
Turing i-s?"Fk
put "Hello, world!" W<N QUf[=
7K]U|K#
rn[}{1I33Q
UNIX-style shell 1\J1yOL
程序中的/bin/sh可改为您使用的shell &R FM
d=
oy2dA
#!/bin/sh \]#;!6ge
echo 'Hello, world!' ySK Yqt z
p F*~)e
UH,4b`b
GUI $17
v,
4U
a~*58
Delphi B0XBI0w^Y
program HelloWorld; WlRZ|.
uses &T/q0bwd
Dialogs; ^_S-s\DW
begin V?V)&y] 4
ShowMessage('Hello, World!'); Nw$[a$^n
end. 3g#=sd!0O@
=']};
9Bvn>+_K
Nuva ?]:EmP
<. g yH7((#i
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK'])
;/^]|
.> - Zoo)
t k/K0u
ny_ kr`$42
Visual Basic {p*hN i)0
MsgBox "Hello, world!" nK%/tdq
'或者 n.Eoi4jV'
Print "Hello, world!" {L-aXe{
a(43]d&
Gp3nR<+
Visual FoxPro `ToRkk&&>{
? "Hello, world!" o`T<