“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。 (]ToBju
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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》。 F/.nr
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以下是用不同语言写成的Hello World程序的几个例子: #$-{hg{
Ada ]l/ PyX
with Ada.Text_Io; use Ada.Text_Io; ^E-BB 6D
procedure Hello is 7\.{O$Q
begin x)GpNkx:
Put_Line ("Hello, world!"); GP<PU
end Hello; CvkZ<i){
b%A+k"d
0KT^V R
汇编语言 (t[sSl
Pnl+.?
x86 CPU,DOS,TASM xs?Ska,N
MODEL SMALL rlMahY"C
IDEAL aq,Ab~V]
STACK 100H fD:BKJQ
L"[2[p
DATASEG L/*D5k%J
HW DB 'Hello, world!$' !DU4iq_.
-}:;
EGUtd
CODESEG V)<Jj
MOV AX, @data p#;I4d G
MOV DS, AX |[./jg"
MOV DX, OFFSET HW ; ,9:1.L
MOV AH, 09H XSOSy2:
INT 21H \k
9EimT}
MOV AX, 4C00H +V
Oczl=
INT 21H v0q(k;Ya
END j{&*]QTN
dQ#$(<v[
j; TXZ`|(
x86 CPU,GNU/Linux,NASM 4 x|yzUx
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 1RHFWK5Si
;Enter this into "hello.asm" then type: H;w8[ImK
;"nasm -f elf hello.asm" FHOF6}if
;"ld hello.o -o hello" XiW~?
*Z
;"./hello" X\Gbs=sf6
-}x( MZ
section .data ;data section declaration GUDz>(
msg db 'Hello World!',0AH !
mb<z^>5
len equ $-msg ;string length ^jYE4gHM
Q h~
section .text ;code section declaration K&'Vd@
global _start ;entry point (start of execution) , ;$SRQ.
_start: mov edx,len ;string length y
<] x
mov ecx,msg ;string start qe[P'\]L
mov ebx,1 ;file handle: stdout H3#rFO"C*
mov eax,4 ;sys_write W6^YFN
int 80h ;kernel system call BZP{{
BG/Q7s-?K
mov ebx,0 ;return value z{m%^,Cs,
mov eax,1 ;sys_exit )i/x%^ca$
int 80h ;kernel system call IoKN.#;^
taBCE?{
ihp>cl?
x86 CPU,Windows,MASM32 *e,GXU@
.386 {ovW6#
.model flat,stdcall i+@t_pxc
option casemap:none D;! aix3
;Include 文件定义 O&g$dK!Rad
include windows.inc 2%_UOEayU
include user32.inc ,z5B"o{Et
includelib user32.lib L)"E _
include kernel32.inc FE'F@aS\
includelib kernel32.lib 1| XC$0
;数据段 b}HwvS:
.data CaB@,L
szCaption db 'A MessageBox!',0 S; Fj9\2)I
szText db 'Hello,world!',0 B`w@Xk'D
;代码段 pq +~|
.code )0XJOm
start: eKvQS}11
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK @:w[(K[^b/
invoke ExitProcess,NULL Qv
B%X)J
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Lq#$q>!K
end start )(V!& w6
\AY*x=PF
#-7w|
AWK UPcx xtC
BEGIN { print "Hello, world!" } 8~|tl,
'U*Kb
Y]neTX [ef
BASIC g9G
8;
传统版BASIC(例如GWBASIC): jM[]Uh
uRnSwJ"hE
10 PRINT "Hello, world!" ?#gYu%7DN
20 END 6b-E|;"]:^
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或在提示符输入:
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M32Z3<
?"Hello, world!":END pxV@ fH+`
=z4kK_?F,
现代版BASIC(例如Quick BASIC): x.%x|6G*
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Print "Hello, world!" w$$vR
PzH#tG&.j
以下的语句在Quick BASIC中同样有效: J_7&nIH7
t|]2\6acuc
? "Hello,world!" D<J,3(Yu
$.KDnl^
tdi^e;:?
BCPL n-x%<j(Xf
GET "LIBHDR" 7-j=he/
v%8S:3
LET START () BE ZIp"X
$( z;1qYW[-A
WRITES ("Hello, world!*N") q~6((pWi|
$) ICm/9Onh&
4h$W4NJK
VWT\wAL
Befunge s5&v~I;>e
"!dlrow olleH">v :d}@Z}2sD
, \[Q* d
^_@ |m>{< :
0u=FlQ
}h
EL:Az~]V
Brainfuck JG* Lc@ Q
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 8omk4 ;
+++++++++++++++.>.+++.------.--------.>+.>. r8TNl@Z
'[`pU>9
{wCzm
C cUD}SOW
#include <stdio.h> ";*Iwd*V
't#E-+o
int main(void) k*k 9hv?
{ TKrh3
printf("Hello, world!\n"); D)GD9MJ
return 0; -iySU 6
} vJfj1 f
pa2cM%48
2>h.K/pC
C++ n+H);Dg<8
#include <iostream> DcX,o*ec!
B`/p[ U5
int main() ,#hx%$f}d
{ ZE4xF8
std::cout << "Hello, world!" << std::endl; $94l('B6H
return 0; ,_!MI+o0
} 3-U@==:T
gQlL0jAV
"FH03
9
C++/CLI _su$]s
int main() ]`u_d}`
{ -eQ70BXvB
System::Console::WriteLine("Hello, world!"); :uQ~?amM
} MtXTh*4
HV\l86}
9xM7X?
C# (C Sharp) /8"9sf*
class HelloWorldApp pHv~^L%=
{ sFa5#w*>
public static void Main() $^louas&
{ B,avI&7M;S
System.Console.WriteLine("Hello, world!"); Jwe9L^gL
} KV]8o'
} /><+[\q4LM
| x/Z
qY
?nV& :~eY
COBOL THf*<|
IDENTIFICATION DIVISION. \%$z!]S>
PROGRAM-ID. HELLO-WORLD. QTbv3#
9vw0box
ENVIRONMENT DIVISION. '.1_anE]
h+d3 JM
DATA DIVISION. A-5'OI
* vW#XDx
PROCEDURE DIVISION. |nq}#
DISPLAY "Hello, world!". V>:ubl8j0l
STOP RUN. -Gn0TA2/C
mrId`<L5l{
6ujePi <U
Common Lisp #P5tTCM
(format t "Hello world!~%") T Z_](%
7FvtWE*
ar[*!:!
DOS批处理 ]q<Zc>OC
@echo off t Zqy \_G
echo "Hello, world!" fLR\@f
a534@U4,
f]37Xl%I
Eiffel C">w3#M%
class HELLO_WORLD a[A9(Ftn
EH~XN9b
creation -9> oB
make CH4 ~9mmE
feature Y!nxHRE
make is ! C|VX,w
local |Y|g T*v
io:BASIC_IO t-3y`31i.
do 7qT>wCVT
!!io 1:VbbOu->V
io.put_string("%N Hello, world!") <{kr5<
end -- make &(t/4)IZox
end -- class HELLO_WORLD 4Y:[YlfD.
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uSU[Y,'x
Erlang RT$.r5l_@
-module(hello). M73d^z
-export([hello_world/0]). /
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Z+]Uw
hello_world() -> io:fwrite("Hello, World!\n"). SxWK@)tP
& U6 bOH%P
)MlT=k6S
Forth w0!4@
." Hello, world!" CR @ZTsl ?
`/\Z{j0_
DU=rsePWE
Fortran R0_O/o+{
WRITE(*,10) QGpAG#M9?
10 FORMAT('Hello, World!') 568qdD`PS
STOP 41Htsj
END mZ^ev;
WZ]f \S
dzn[4
HTML C=uYX"
<HTML> FEzjP$
<HEAD> 'I8K1Q=/
<TITLE> Hello World! </TITLE> f!n0kXVu6U
</HEAD> *D6X&Hg&5
<BODY> 5}"@$.{i
<p>Hello World!</p> Q
</BODY> 5y%-K=d
</HTML> i>}aQ:&^0
8,m3]Lg
%}0B7_6B+@
HQ9+ JLFZy\
H qTD^Vz
V
]31UA>/TI
]|PDsb"e
INTERCAL By7?<A
PLEASE DO ,1 <- #13 Fy8$'oc
DO ,1 SUB #1 <- #238 3sy|pa
DO ,1 SUB #2 <- #112 Sp>v`{F
DO ,1 SUB #3 <- #112 /;rPzP4K6
DO ,1 SUB #4 <- #0 SB#Y^!
DO ,1 SUB #5 <- #64 ;LjTsF'
DO ,1 SUB #6 <- #238 eK=<a<tx
DO ,1 SUB #7 <- #26 vl67Xtk4
DO ,1 SUB #8 <- #248 "-HmXw1+t
DO ,1 SUB #9 <- #168 (;.wsz&K
DO ,1 SUB #10 <- #24 cN(Toj'`
DO ,1 SUB #11 <- #16 D8S3YdJ
DO ,1 SUB #12 <- #158 p3R: 3E6p
DO ,1 SUB #13 <- #52 svTKt%6X
PLEASE READ OUT ,1 ^^C@W?.z
PLEASE GIVE UP *c1)x
Y!C8@B$MR3
4>I >y@^
Java ^w(~gQ6|mP
public class Hello okv`+VeA
{ (Sd8S`xO
public static void main(String[] args) ]`, jaD
{ i`hr'}x
System.out.println("Hello, world!"); ]#*S. r]
} 2\/,X CQV
} 5gZ6H/.
]:X# w0UR
<*'%Xgm
JSP $wBF'|eU
<% znxP.=GB
out.print("Hello, world!"); ]dj
W^C]94
%> {BS}9jZx
o&Vti"fpC
{Jx-Zo>'
MIXAL vdt ":
TERM EQU 19 the MIX console device number bB->7.GXu
ORIG 1000 start address 7yM "G $
START OUT MSG(TERM) output data at address MSG |2t1m 6\j
HLT halt execution RL|d-A+;
MSG ALF "MIXAL" do$+ Eh
ALF " HELL" v+b#8
ALF "O WOR" XHER [8l
ALF "LD "
c1x{$
END START end of the program a(Fx1`}
v%2 @M
+ <4gJoI
Nuva g,61'5\
<..直接输出..> iT2{3t
Hello, world! .4&pi
^
b`wf"A
<..或者..> 2 f8\Osn>m
KyQd6 1
<. T>cO{I
// 不带换行 Am @o}EC
? "Hello, world!" Xvr7qowL
>=+:lD
// 或者 pcrarj
n;+`%;6
// 带换行 ^S%xaA9
?? 'Hello, world!' j2GTo~muq
.> rQb=/@-
\fD)|
5HqvSfq>?
OCaml !CGpE=V
let main () = Z&![W@m@0N
print_endline "Hello world!";; A6Vb'Gqv{
S8Ec.]T
9(AY7]6
Pascal L#6!W
program Hello; ^1mnw@04
begin N}\%r&KR=
writeln('Hello, world!'); o0}kRL
end. f]C`]qg
@yj$
KKcajN
Perl LuE0Hb"S8
#!/usr/local/bin/perl 9
7U a,
print "Hello, world!\n"; #M5pQ&yZy
>.o<}!FW
W Yo>Md
8
PHP RE%25t|
<?php ;ZtN9l
print("Hello, world!"); fG_<HJS(~
?> ? l>Ra0
]*]#I?&'Hx
]VcuD05"C
Pike rf=oH
}
#!/usr/local/bin/pike N eC]MW
int main() 9@^N*
E+
{ =_=0l+\}
write("Hello, world!\n"); {\u6Cj x
return 0; Qu_=K_W
} GvTA/zA
qF3s&WI
`P/87=h
PL/I ^9zlxs`<d
Test: procedure options(main); ZuNUha&a
declare My_String char(20) varying initialize('Hello, world!'); \ !qe@h<
put skip list(My_String); [U@;EeS
end Test; yW]>v>l:Eg
Hg04pZupN
oH"VrS 6
Prolog E0*62OI~O
goal ecMpU8}rR
write("hello,world!"). Ie7S'.Lmq
q${+I(b,
n3_|#1Qu
Python qE*h UzA
#!/usr/local/bin/python Txa
2`2t7
print "Hello, world!" 1deK}5'
%zYTTPLZ
SNrX(V::z
REXX Aj{G=AT
say "Hello, world!" :qvA'.L/;z
f#&@Vl(i&
~sVbg$]\ G
Ruby ^5q}M'
#!/usr/bin/ruby ?`3G5at)9f
print "Hello, world!\n" Q6$^lRNOpk
y3Ul}mVhA
?.g="{5X
Scheme RV>n Op}R
(display "Hello, world!") l(Y\@@t1
(newline) l{8t;!2t
zEk/#&
7?]wAH89
sed (需要至少一行输入) 1B`JvNtd
sed -ne '1s/.*/Hello, world!/p' S;}/ql y
BmFtRbR
^0(`:*
Smalltalk jL*s(Yq
Transcript show: 'Hello, world!' ;]VLA9dC
bC,SE*F\
"Z#MR`;&29
SNOBOL }_fVv{D
OUTPUT = "Hello, world!" ,T8fo\a4
END +:3p*x%1H
d(q2gd@
asJ t6C
SQL EASN#VG
create table MESSAGE (TEXT char(15)); 'e*:eBoyb
insert into MESSAGE (TEXT) values ('Hello, world!'); 3A'9=h,lVK
select TEXT from MESSAGE; fiQ/ &]|5
drop table MESSAGE; F-<c.0;6
vpP8'f.
:auq#$B
Tcl -ze@~Z@
#!/usr/local/bin/tcl NC%)SG \
puts "Hello, world!" OyATb{`'
4`p[t;q
{PkPKp
TScript I@uin|X
? "Hello, world!" ,A9{x\1!
Tl
S904'
N#8$pE
Turing 6Z!OD(/e
put "Hello, world!" rp!>rM] s
V&R_A