“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。 9E6_]8rl
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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》。 "yS _s
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以下是用不同语言写成的Hello World程序的几个例子: .4E&/w+
Ada .nVa[B|.
with Ada.Text_Io; use Ada.Text_Io; BBev<
procedure Hello is T
\_]^]>
begin }R{ts
Put_Line ("Hello, world!"); \pVXimam
end Hello; aJ>65RJ^=
S Em Q@1
e7sp =I,
汇编语言 4GX-ma,
6}FP
x86 CPU,DOS,TASM C)`Fv=]R
MODEL SMALL 85LAYaw
IDEAL z62;cv
STACK 100H A|<jX}
C@'h<[v`1v
DATASEG N u<_}
HW DB 'Hello, world!$' o%IA}e7PAa
{y_98N
CODESEG 3R.W>U
MOV AX, @data U`2e{>'4t
MOV DS, AX #
mV{#B=
MOV DX, OFFSET HW 9[.8cg*
MOV AH, 09H >LOjV0K/
INT 21H f}9zgWU
MOV AX, 4C00H ?j"KV_
INT 21H +nJgl8'^y
END Gz,i~XX
{?:X8&Sf
4b98KsYg
x86 CPU,GNU/Linux,NASM $\X[@E S0
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ~?K ~L~f5
;Enter this into "hello.asm" then type: 0.8 2kl
;"nasm -f elf hello.asm" )-a'{W/t
;"ld hello.o -o hello" &E.^jR~*
;"./hello" ewctkI$,5
tFp Ygff<
section .data ;data section declaration s~5[![1
K
msg db 'Hello World!',0AH I|^;B8[
len equ $-msg ;string length B><d9d
K/IWH[
section .text ;code section declaration wk5s)%V
global _start ;entry point (start of execution) ^hZ0IM
_start: mov edx,len ;string length W04@!_) <
mov ecx,msg ;string start ahJ`$U4n
mov ebx,1 ;file handle: stdout n>BkTaI
mov eax,4 ;sys_write Uq^#r iq
int 80h ;kernel system call zh8nc%X{
[YlKR'_
mov ebx,0 ;return value [XEkz#{
mov eax,1 ;sys_exit : y%d
int 80h ;kernel system call g/CSGIIT
Vl&?U
,-8"R`UI8
x86 CPU,Windows,MASM32 *Q?tl\E
.386 #49kjv@
.model flat,stdcall g?z/2zKR
option casemap:none 1v.c 6~
;Include 文件定义 Rwz0poG`WG
include windows.inc )u[emv$
include user32.inc A kC1z73<
includelib user32.lib $4h 5rC g0
include kernel32.inc ;f#v0W`5
includelib kernel32.lib PQ5QA61
;数据段 _m5uDF?[
.data _K l_61k
szCaption db 'A MessageBox!',0 Enum/O5
szText db 'Hello,world!',0 %4et&zRC
;代码段 ZX9T YN
.code J;.wXS_U8
start: WW4vn|0v
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK v%+:/m1
invoke ExitProcess,NULL Br1&8L-|%
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> O}-jCW;K
end start zzTfYf)
&Sw%<N*r
u0|8Tgf
AWK s4A43i'g!h
BEGIN { print "Hello, world!" } *>7 >g"
z> Rsi
j*so9M6|c
BASIC $'BSH4~|.
传统版BASIC(例如GWBASIC): Pg,b-W?n*
+ jc!5i .
10 PRINT "Hello, world!" Q=;U@k@>
20 END Mo?~_|}
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或在提示符输入: *|%@6I(
=,spvy'"*C
?"Hello, world!":END yu!h<nfzA
Ugu[|,
现代版BASIC(例如Quick BASIC): l{I6&^!KS
#5cEV'm;
Print "Hello, world!" Cl;oi}L
HHDl8lo
以下的语句在Quick BASIC中同样有效: DFZkh^PFd
DS+}UO
? "Hello,world!" }()5"QB
dP#|$1
q)X$^oE!6
BCPL *X'Y$x>f
GET "LIBHDR" ^t` k0<
-lbm*
-(
LET START () BE be]bZ
1f
$( Tl(^
WRITES ("Hello, world!*N") s.bc>E0
$) 27
]':A4_
t3*wjQ3
=mS\i663
Befunge $?Yry.2
"!dlrow olleH">v /oR0+sH]
, Ixb=L(V
^_@ 2|3)S`WZl
RQ vft
;&<{ey
Brainfuck "?]{%-u
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< iHeN9 cl
+++++++++++++++.>.+++.------.--------.>+.>. diJLZikk
c`J.Tm[_u
77C'*tt1]
C o3Yb7h9
#include <stdio.h> e-:yb^
7S '%
E
int main(void) W5EDVPur
{ mg^I=kpk
printf("Hello, world!\n"); ~zHjMo2
return 0; S^-DK~Xt4
} e<3K;Q
aC$B2
aZ2!i
C++ RN$1bxY
#include <iostream> /1"(cQ%?
x'+T/zw
int main() |jI#"LbF
{ xf<at ->
std::cout << "Hello, world!" << std::endl; mw_~*Nc'9
return 0; 5's87Z;6
} a|%J=k>>
9>l*lCA
`IP/d
C++/CLI +ln9c
int main() +]*zlE\N`
{ ozmrw\_}[
System::Console::WriteLine("Hello, world!"); 13 =A
} [$qyF|/K`n
)2Wi`ZT
7|{}\w(I
C# (C Sharp) 1n=lqn/
class HelloWorldApp &~8oQC-eF
{ N >FKy'.gk
public static void Main() uD\?(LM
{ <v)1<*I
System.Console.WriteLine("Hello, world!"); sF|5XjQ
} DgUT5t1
} ;XF:\<+
cJ{ Nh;"
I;e=0!9U
COBOL &ib5*4!
IDENTIFICATION DIVISION. ,5i` -OI
PROGRAM-ID. HELLO-WORLD. W#^2#sjO
0t Fkd
ENVIRONMENT DIVISION. ^A!Qc=#z}
;T"zV{;7BR
DATA DIVISION. _"E%xM*r
-&NN51-d\j
PROCEDURE DIVISION. 6VS4y-N
DISPLAY "Hello, world!". wP6Fl L
STOP RUN. QN
#U)wn:
"Ue.@>
Mmxlp.l
Common Lisp 5*+!+V^?X
(format t "Hello world!~%") Kf>A\l^X7
C>-aIz!y
fmQ_P.c
DOS批处理 BcL{se9<
@echo off ~<O7$~
echo "Hello, world!" OBMTgZHxv
kO,zZF&
V}J)\VZ2#
Eiffel <vUbv
class HELLO_WORLD Z3#P,y9@
U}6B*Xx'
creation 6ys
&zy
make iI\oz&!vH
feature G'oG</A
make is S0B|#O%Z
local % W=b?:
io:BASIC_IO `);AW(Q
do Xnz3p"
!!io oI=fx Sjd
io.put_string("%N Hello, world!") 9{(.Il J>
end -- make d9B]fi}
end -- class HELLO_WORLD I/a/)No
8D>n1b(H
:# .<[
Erlang u])b,9&En
-module(hello). W~zbm]
-export([hello_world/0]). TOkp%@9/
lhYe;b(
hello_world() -> io:fwrite("Hello, World!\n"). IAw{P08+
kddZZA3`
6eT5ktf
Forth ]ro*G"-_1#
." Hello, world!" CR '_GrD>P)-
xfpa]Z
,5|&A
Fortran [#l*_0
WRITE(*,10) MXw hxk#E
10 FORMAT('Hello, World!') b6Wqr/
STOP byLft1
END b:Wm8pp?
xCg52zkH#
ox(j^x]NC
HTML jE}33"
<HTML> &^#VN%{
<HEAD> H7d/X
<TITLE> Hello World! </TITLE> +wEac
g>>E
</HEAD> *]AdUEV?
<BODY> - db_E#
<p>Hello World!</p> Jll-`b 1
</BODY> P*
w9,
</HTML> }\%Fi/6Z{
K%a%a6k`
t/cY=Wp
HQ9+ $"FQj4%d
H r~/
S<VSn}vn
<J`0mVOX
INTERCAL g'H$R~ag
PLEASE DO ,1 <- #13 G_0(
|%
DO ,1 SUB #1 <- #238 n;@bLJ$W
DO ,1 SUB #2 <- #112 d Vj_8>
DO ,1 SUB #3 <- #112 *A"~m!=
DO ,1 SUB #4 <- #0 AyNI$Q6Z
DO ,1 SUB #5 <- #64 U^Q:Y}^
DO ,1 SUB #6 <- #238 "t(p&;d
DO ,1 SUB #7 <- #26 fz\9 S
DO ,1 SUB #8 <- #248 t"=
E^r
DO ,1 SUB #9 <- #168 2nSSFx r
DO ,1 SUB #10 <- #24 >33=<~#n
DO ,1 SUB #11 <- #16 |$vX<. S
DO ,1 SUB #12 <- #158 {[+mpKq
DO ,1 SUB #13 <- #52 v hpNpgz
PLEASE READ OUT ,1 Kla'lCZ
PLEASE GIVE UP VHCK2}ps
~io szX
43mP]*=A
Java te3}d'9&|
public class Hello y9x w
9l'
{ (-ufBYO6
public static void main(String[] args) F<qz[,]|-j
{ %k;|\%B`
System.out.println("Hello, world!"); (Tn- >).AO
} do*EKo
} wN;^[F
.}O[dR
M}yDXJx
JSP r [4tPk
<% l038%U~U!
out.print("Hello, world!"); h| ,:e;>}
%> 6LalW5I
BI3@|,._N
Lv|q
MIXAL N"]q='t
TERM EQU 19 the MIX console device number .NYbi@bk(<
ORIG 1000 start address NYrQ$N"
START OUT MSG(TERM) output data at address MSG v6>_ j
L
HLT halt execution | # 47O
MSG ALF "MIXAL" \QYFAa
ALF " HELL" 5*Y^\N
ALF "O WOR" d@5[B0eH
ALF "LD " L<ue$'
END START end of the program 1][4.}?F[
!HnXXVW
Tk5W'p|6f
Nuva _F$aUtb%O
<..直接输出..> VU&7P/\f%
Hello, world! f33 l$pOp
- `p4-J!Fy
<..或者..> ] Hzt b
L*&p!
<. :I+Gu*0WD
// 不带换行 xa <UM5eI
? "Hello, world!" n)^i/ nXb'
[8T^@YN
// 或者 :9QZPsL
2zs73:z
// 带换行 1Cgso`
?? 'Hello, world!' v^d]~!h
.> X!9 B2w
#,":vr
a1_GIM0
OCaml Jl#%uU/sx
let main () = BYVY)<v/
print_endline "Hello world!";; KG|n
LR".pH13
-uMSe~
Pascal ^/\Of{OZ-
program Hello; PH+S};Uxv
begin B{'( L|
writeln('Hello, world!'); VJickXA
end. {<R2UI5m5
8,?h~prc
'VzP};
Perl q|!-0B@
#!/usr/local/bin/perl *>n;SuT_
print "Hello, world!\n"; {>DEsO
MP_ ~<Q
;C3US)j
PHP VGpWg rmHk
<?php -jb0o/:
print("Hello, world!"); i}.&0Fp
?> lT&eJO~?5
{ g/0x,-Z
/v-6WSN
Pike U%q7Ai7
#!/usr/local/bin/pike =kJ,%\E`
int main() y5?RVlKJ
{ Ji>o!
write("Hello, world!\n"); OY;*zk
return 0; Gd-'Z_ b
} <<+\X:,
G Uon/G8
"4riSxEyF
PL/I 4dO~C
Test: procedure options(main); eYN5;bx)W
declare My_String char(20) varying initialize('Hello, world!'); |wiqGzAr{
put skip list(My_String); F'4w;-ax
end Test; 1(I6.BHW
"alyfyBu'M
a
yCY~=i
Prolog JtEo'As:[
goal 1IC~e^"
write("hello,world!"). fI{&#~f4C
[5G6VNh=
6p?,(
Python 5nT"rA
#!/usr/local/bin/python jbVECi-
print "Hello, world!" 9Uj$K>:
&PYK8}pBk3
U+:m4a
REXX _+K_5IO4
say "Hello, world!" >7I15U
1*'HL#
*>|gxM8
Ruby +
+M$#Er&
#!/usr/bin/ruby PsnWWj?c
print "Hello, world!\n" @k,z:~[C=
/Z~<CbKKl
wy0tgy(' |
Scheme 8$6Y{$&C
(display "Hello, world!") V@zg}C|e
(newline) iBF|&h(\
%?}33yV
sz:g,}~h
sed (需要至少一行输入) fVF2-Rh=
sed -ne '1s/.*/Hello, world!/p' n>ULRgiT:o
g.BdlVB\
nuk*.Su
Smalltalk *5%d XixN
Transcript show: 'Hello, world!' -:|?h{q?u
DJ'zz&K
wSa)*]%
SNOBOL SxOC1+Oy
OUTPUT = "Hello, world!" c6h.iBJ'
END ~Sj9GxTe
ZrPbl"`7
em,u(#)&
SQL ED=V8';D
create table MESSAGE (TEXT char(15)); TE3lK(f
insert into MESSAGE (TEXT) values ('Hello, world!'); J] {QB^?
select TEXT from MESSAGE; 'u *DA|HC
drop table MESSAGE; U'H$`$Ov
OLyf8&AU@
1eS&&J5
Tcl b*a#<K$T_
#!/usr/local/bin/tcl dP3CG8w5
puts "Hello, world!" NjVYLn<.r
]{3)^axW;
idLWe9gC
TScript _
TiuY
? "Hello, world!" e7^mmm
7''??X
cqQ#p2<%
Turing $ `ov4W
put "Hello, world!" ?qPo=~y01
a=J^
6HT;#Znn
UNIX-style shell "|EM;o
程序中的/bin/sh可改为您使用的shell :ci5r;^
m8A#~i .
#!/bin/sh 6 eLR2
echo 'Hello, world!' C[ NSkr
;D3C>7y
e|)hG8FlF
GUI CyJEY-
NP0\i1P>.?
Delphi T$>WE= Y
program HelloWorld; 9]k @Q_
uses }JF13beU
Dialogs; ]OM"ZG/^
begin c/D+|X*
ShowMessage('Hello, World!'); {j9{n
end. 9+j0q%
5 h-@|t
s3z$e+A8
Nuva ?M8dP%&r
<. U>YAdrx2a
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) &TUWW