“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。 /(N/DMl[
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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》。 ~3&{`9Y
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以下是用不同语言写成的Hello World程序的几个例子: (f# (B2j
Ada =*mT{q@
with Ada.Text_Io; use Ada.Text_Io; Jup)m/
procedure Hello is =6%oW2E\
begin 22\!Z2@T/
Put_Line ("Hello, world!"); EYAaK^ &
end Hello; \(o"/*
oaoTd$/5
/R)wM#&
汇编语言 >[}oH2oi
YDt+1Kw}D
x86 CPU,DOS,TASM y>^a~}Zq
MODEL SMALL jwZ,_CK
IDEAL 0I&k_7_
STACK 100H +{J8,^z#
)-C3z
DATASEG 0'QWa{dS\
HW DB 'Hello, world!$' P15
H[<:Fz
CD|[PkjW
CODESEG "LMj,qZ1!
MOV AX, @data %`Re{%1;
MOV DS, AX tXD$HeBB?
MOV DX, OFFSET HW bzgC+yT
MOV AH, 09H \o9 \ikR
INT 21H K5""%O+
MOV AX, 4C00H :{lwz#9V
INT 21H O7K.\
END {@Mr7*u
o2 14V \
I=Y>z^4
x86 CPU,GNU/Linux,NASM (i1JRn-f
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). vvoxK 0
;Enter this into "hello.asm" then type: &d# R'Z
;"nasm -f elf hello.asm" 8.E"[QktZ
;"ld hello.o -o hello" qe~x?FO_>
;"./hello" wp[Ug2;G
$pGT1oF[E
section .data ;data section declaration
6@S6E(^
msg db 'Hello World!',0AH :2 ;Jo^6Se
len equ $-msg ;string length KyvZ?R
G0cG%sIl
section .text ;code section declaration TkbaoD
global _start ;entry point (start of execution) I[\~pi,
_start: mov edx,len ;string length NFK`,
mov ecx,msg ;string start eI
#Gx_mg
mov ebx,1 ;file handle: stdout APQq F/
mov eax,4 ;sys_write =OVDJ0ozZ
int 80h ;kernel system call 8)i""OD@I
g?C;b>4
mov ebx,0 ;return value bF)G+IH
mov eax,1 ;sys_exit !3ggQG!e
int 80h ;kernel system call d[ N1zQW
H}@:Bri
gEA SYIQ
x86 CPU,Windows,MASM32 =bVPHrKNQ
.386 >@ t
.model flat,stdcall C@rGa7
option casemap:none FMfpjuHk
;Include 文件定义 t^t% >9o
include windows.inc taQE
r2Zy
include user32.inc YIU3}sJ!
includelib user32.lib I`>U#x*
include kernel32.inc v9$!v^U"D
includelib kernel32.lib rr<E#w
;数据段 >ZA=9v
.data bp1AN9~
szCaption db 'A MessageBox!',0 .8hI
ad
szText db 'Hello,world!',0 2hE(h
;代码段 Ia&R/I
.code Uv^\[
start: 6Rd4waj_,U
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK vDy&sgS$<
invoke ExitProcess,NULL <N<Q9}`V
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> EeIDlm0o
end start }\pI`;*O|
f)I5=Ijy(
tF2"IP.
AWK J
3!~e+wn
BEGIN { print "Hello, world!" } H'+7z-%G
{4"V)9o-1>
:5d>^6eoB?
BASIC S{YzHK
传统版BASIC(例如GWBASIC): u8e_Lqx?
OWd'z1Yl
10 PRINT "Hello, world!" GkIE;7#2kX
20 END *bkb-nKw
!> UlvT-
或在提示符输入: {Gxe%gu6K
7
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?"Hello, world!":END t6+m` Kq
)?n'ZhsX
现代版BASIC(例如Quick BASIC): "Fz.#U
c:[k+_Zr
Print "Hello, world!" V+d_1]
l
U"oNJ8&%|
以下的语句在Quick BASIC中同样有效: {(73*-~$
}5 o?7}?
? "Hello,world!" FLZ9pb[T
}D/+YG
'\Xkvi
BCPL EM,C
GET "LIBHDR" _ k-_&PR
QFh1sb)]d)
LET START () BE UHBXq;?&q
$( V\~.
WRITES ("Hello, world!*N") 5dBftTv?
$) %36x'Dn?
}xZi Ct
:yay:3qv
Befunge h8rW"8Th
"!dlrow olleH">v Fu7:4+
, x)5}:b1B=
^_@ J3$>~?^1
tDByOml8Ix
-[>de!
T3$
Brainfuck {C1crp>q
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< A~ya{^}
+++++++++++++++.>.+++.------.--------.>+.>. sXKkZ+2q
lU
WXXuO]
7Z-j'pq
C Z%T Ajm
#include <stdio.h> SnCwoxK
:=QX ^*
int main(void) qHtQ4_Zn;
{ R!nf^*~
printf("Hello, world!\n"); 1/_g36\l$
return 0; K!|eN_1A
} VK}4<u
{@Wv@H+4
rTD +7
)E
C++ ?vXgHDs^T
#include <iostream> gLiJ&H
6W1GvM\e
int main() dBWny&
{ b
F=MQ
std::cout << "Hello, world!" << std::endl; s.3"2waZ=T
return 0; 3G})$y3m
} P8 X07IK
Ik G&
_k84#E0
C++/CLI O&%'j
int main() +ikSa8)*i
{ 9u=A:n\
System::Console::WriteLine("Hello, world!"); 4;`z6\u9-
} ~/OY1~c
w$2q00R>
'g v0;L
C# (C Sharp) \ovs[&
class HelloWorldApp f}otIf
{ a[{$4JpK
public static void Main() 3i^X9[.
{ F%>$WN#2
System.Console.WriteLine("Hello, world!"); C=D*
} w,{h9f
} 6jE.X
&OR(]Wt0
;$p !dI\-Q
COBOL IUMv{2C
IDENTIFICATION DIVISION. Pwh}hG1sa
PROGRAM-ID. HELLO-WORLD. D:P(;
qpQ;,8X-"
ENVIRONMENT DIVISION. iO L$| Z(
l{By]S
DATA DIVISION. ?d')#WnC
+ NlnK6T/
PROCEDURE DIVISION. F>;Wbk&[|
DISPLAY "Hello, world!". U)}]Z@I-
STOP RUN. )&Ii!tm3
w OL,L U
'|}A/`
Common Lisp Koa9W>!
(format t "Hello world!~%") )e(<YST
6v%yU3l
^F^g(|(K
DOS批处理 |r9<aVlK
@echo off LI,wSTVjC
echo "Hello, world!" ~Xi@#s~
oEIpv;:_
Rv1W &s&
Eiffel
Y@,iDQ
class HELLO_WORLD
a~}q]o?j
$4bc!
creation F:j@ JMpQ
make osC?2.
feature .7iRV
make is i_qY=*a?y
local v^"\e&XL
io:BASIC_IO E@VQxB7+
do
(s8b?Ol/
!!io >$Y/B=e
io.put_string("%N Hello, world!") ;zCUx*{
end -- make VcjbRpTy&
end -- class HELLO_WORLD Q14zc0N
k1&9 bgI
Ek+R
Erlang s$Vl">9#
-module(hello). Ni~IY#
'
-export([hello_world/0]). @yp0WB
$8^Hkxy
hello_world() -> io:fwrite("Hello, World!\n"). /wDf,Hduz
_p$/.~Xo9
jAJ='|[X\
Forth
cILS
." Hello, world!" CR 3Z*r#d$nh:
fA=Z):w
9QQ XB-
Fortran Xv1vq
-cM
WRITE(*,10) m*^)#
10 FORMAT('Hello, World!') zt.kNb
STOP OqtGKda
END ^*.[b
Ai/X*y:[?
(\\;A?
HTML D4%J!L<P
<HTML> @3`5(xwzm
<HEAD> ;|Cdq
<TITLE> Hello World! </TITLE> b.*LmSX#
</HEAD> c^}G=Z1@
<BODY> %H{pU:[5*
<p>Hello World!</p> ]r`;89:s>
</BODY> -K{R7
</HTML> "vGh/sXW
0 C4eer+D
i/:L^SQAq
HQ9+
PMjNc_))
H ]4aPn
s`yzeo
w8lrpbLh
INTERCAL zx@!8Z
PLEASE DO ,1 <- #13 <Gpji5f2
DO ,1 SUB #1 <- #238 $dfc@Fn^x
DO ,1 SUB #2 <- #112 T//xxH]w-
DO ,1 SUB #3 <- #112 kn3w6]
DO ,1 SUB #4 <- #0 RELNWr
DO ,1 SUB #5 <- #64 <4rnOQ:
DO ,1 SUB #6 <- #238 p)biOG
DO ,1 SUB #7 <- #26 {-A|f
DO ,1 SUB #8 <- #248 $dM_uSt
DO ,1 SUB #9 <- #168 i{$-[*WHiV
DO ,1 SUB #10 <- #24 Vh-8pFt
DO ,1 SUB #11 <- #16 HT<p=o'$Z
DO ,1 SUB #12 <- #158 x`E<]z*w}
DO ,1 SUB #13 <- #52 mTe3%( LD
PLEASE READ OUT ,1 "ESc^28
PLEASE GIVE UP )KZMRAT-
pRQ7rT',v
TV{GHB!p"
Java BTAbDyH5
public class Hello h)Y] L#R
{ ~ QRjl
public static void main(String[] args) o z*;q]
{ RV~t%Sw^
System.out.println("Hello, world!"); m6R/,
} =3-=p&*
} 3IYFvq~
kf@JEcKV
1PY]Q{r
JSP )kep:-wm
<% ^ZMbJe%L
out.print("Hello, world!"); rrL.Y&DTK
%> [,Ehu<mEK
L<FXtBJ
E{
/,
b)
MIXAL /LFuf`bXV
TERM EQU 19 the MIX console device number vyZ&%?{*R
ORIG 1000 start address dN5{W0_
START OUT MSG(TERM) output data at address MSG 8N&'n
HLT halt execution oAO{4xP
MSG ALF "MIXAL" XG|N$~N+ 2
ALF " HELL" }
=OE.cf@
ALF "O WOR" Kx9u|fp5
ALF "LD " E2DfG^sGV
END START end of the program YR'F]FI
l'I:0a
4T
)<5k+O~
Nuva )j;^3LiV3
<..直接输出..> =p+n(C/
Hello, world! W&5/1``u\
_X#R v2a
<..或者..> L[<#>/NPy
;6/WjUDw<|
<. m>=DJ{KQ
// 不带换行 SKC;@?
? "Hello, world!" DS?.'"n[u
Pn!~U] A$%
// 或者 !.P||$x`&
!E$$FvL
// 带换行 ,rMDGZm?
?? 'Hello, world!' <AU*lLZ
.> 2E }vuw=c
*2Pr1U
G*IP?c>=
OCaml gqS9 {K(f
let main () = 0+SDFh
print_endline "Hello world!";; tWn
dAM(U7
a&>NuMDI
QIiy\E%
Pascal h0<PQZJ
program Hello; ROFZ*@CH<
begin u1meysa{0
writeln('Hello, world!'); VcKB:(:[
end. yzN[%/
1AAyzAP9`
i#-v4g
Perl \Th<7WbR6#
#!/usr/local/bin/perl y,5qY}P+
print "Hello, world!\n"; wPg/.N9H
/\%<VBx ?q
rZ?:$],U!
PHP JpS}X\]i
<?php JP4DV=}L
print("Hello, world!"); AW5iwq6p
?> ET.jjV
c)#P}Ai
l5-[a
Pike !<M
eWo
#!/usr/local/bin/pike )JzY%a SP
int main() uzdPA'u
{ T^ktfgXq
write("Hello, world!\n"); :)#;0o5
return 0; $z=%e#(!I
} 7}&:07U
_:Qh1 &h
krfXvQJwJ
PL/I .D W>c}1
Test: procedure options(main); o-6d$c}{f
declare My_String char(20) varying initialize('Hello, world!'); `<9>X9.+
put skip list(My_String); LGt>=|=bj
end Test; c`<2&ke
3y)\dln
2j+w5KvU
Prolog C@XS
goal }xsO^K
write("hello,world!"). vIpL8B86a
VKttJok1
m?(8T|i
Python [rx9gOOa&
#!/usr/local/bin/python f=^xU
P
print "Hello, world!" NifQsy)*%
<IR#W$[
e(7#>O%1
REXX u+V*U5v
say "Hello, world!" *X.1b!
2u$-(JfoS
,)`_?^\$f
Ruby %}@iz(*}>
#!/usr/bin/ruby i >3`V6
print "Hello, world!\n" ?W'z5'|
nkHl;;WJ
!R8%C!=a
Scheme R&|.Lvmc/
(display "Hello, world!") MtJ-pa~n
(newline) :{a< ~n`
pyhXET
'
|mtW)
sed (需要至少一行输入) ZxvH1qx8
sed -ne '1s/.*/Hello, world!/p' es7;eH*O9
8$NVVw]2,
YNBM\Q
Smalltalk =2&\<Q_Fi
Transcript show: 'Hello, world!' b~zSsws.
'OnfU{Ai
S#]]h/
SNOBOL Xz4q^XJ
OUTPUT = "Hello, world!" 8Qg{@#Wr
END +0Q
wlNL;W@w
dWn6-es
SQL WX4sTxJK
create table MESSAGE (TEXT char(15)); TOHz3=
insert into MESSAGE (TEXT) values ('Hello, world!'); v*.R<-X:
select TEXT from MESSAGE; )=f}vHg$
drop table MESSAGE; O?OAXPK2
ExG(*[l
|:S6Gp[\O
Tcl 2}&ERW
#!/usr/local/bin/tcl 6La[( )
puts "Hello, world!" QVjHGY*R
o^epXIrIPi
Nk9=A4=|
TScript CFFb>d
? "Hello, world!" Ovt]3`U9J
qe.QF."y
F>\,`wP
Turing fAJyD`]Z
put "Hello, world!" a{ST4d'T
(}b~}X9
g!^N#o
UNIX-style shell ~IZ-:?+S^
程序中的/bin/sh可改为您使用的shell I<2`wL=
?J2{6,}O*.
#!/bin/sh ^ = C>
echo 'Hello, world!' O: :FB.k
J#`7!
6SCjlaGW5
GUI |*?N#0s5h
c';~bYZ
Delphi Fu.aV876\f
program HelloWorld; =>'8<"M5z
uses `sm Cfh}j6
Dialogs; ]\yB,
begin THwM',6
ShowMessage('Hello, World!'); CzV;{[?~;
end. cx:_5GF
[h-6;.e
XKGiw 2
C
Nuva i6paNHi*
<. [<=RsD_q~
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) :=Zd)i)3
.> .
Z&5TK4I
r $S9/
2xN7lfu1RB
Visual Basic uL)MbM]
MsgBox "Hello, world!" 1te^dh:Vp
'或者 ~ n<|f
Print "Hello, world!" _-f LD
PSc=k0D
$R}C(k
;?
Visual FoxPro CRo'r/G
? "Hello, world!" c^= q(V
8
o}5QOW
k1D7=&i
X11 bZ_&AfcB
用一个程序 vGyQ306
b_Y+XXb<
xmessage 'Hello, world!' 9SeGkwec?$
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