“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。 &Or=_5Y`
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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》。 *RE-K36m|u
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以下是用不同语言写成的Hello World程序的几个例子: <hC3#dNRd
Ada ymVd94L
with Ada.Text_Io; use Ada.Text_Io; U;dt-3?=.h
procedure Hello is |}y}o:(
begin dX}dO)%m{
Put_Line ("Hello, world!"); ,
p=8tf#
end Hello; IMw)X0z
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汇编语言 .wOLi Ms
JkDZl?x5
x86 CPU,DOS,TASM Wk#-LkI
MODEL SMALL t SLl'XeN
IDEAL V>j`
STACK 100H f9=X7"dzP
)KQv4\0y<
DATASEG uB"m!dL
HW DB 'Hello, world!$' BU{V,|10a
.wn_e=lT
CODESEG tpzdYokh>
MOV AX, @data ,$ret@.H
MOV DS, AX !PTbR4s
MOV DX, OFFSET HW bjX$idL
MOV AH, 09H [ +@<T)
INT 21H Lk+1r8
MOV AX, 4C00H \I{A33i2w
INT 21H rX
d2[pp
END Y]0y
-H
ghR]$SG
fB}5,22
x86 CPU,GNU/Linux,NASM R*#Q=_
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ;//qjo
;Enter this into "hello.asm" then type: )L("t
;"nasm -f elf hello.asm" HCy} '}d
;"ld hello.o -o hello" )cBV;
E<
;"./hello" qf$|z`c
2n:J7PGD
section .data ;data section declaration qz SI cI
msg db 'Hello World!',0AH =9MH
len equ $-msg ;string length m;1e xa
o*BI^4
section .text ;code section declaration CrQ&-!Eh
global _start ;entry point (start of execution) 9@+X?Nhv5
_start: mov edx,len ;string length {oeQK
mov ecx,msg ;string start Nn\\}R
mov ebx,1 ;file handle: stdout I+Cmj]M s0
mov eax,4 ;sys_write k~F/Ho+R&
int 80h ;kernel system call Vs(Zs[
na; ^/_U@
mov ebx,0 ;return value B\w`)c
mov eax,1 ;sys_exit DQQjx>CK
int 80h ;kernel system call IKpx~
FeRuZww._J
64s;6=
x86 CPU,Windows,MASM32 rqo<Xt`
.386 $^ 3 f}IzA
.model flat,stdcall haK5Oe/cE
option casemap:none IvSrJe[;
;Include 文件定义 t!C-G+It
include windows.inc U2u>A
r
include user32.inc oABPGyv
includelib user32.lib o`Brr:
include kernel32.inc !+l,
m8Hly
includelib kernel32.lib TC}u[kM
;数据段 xq*yZ5:5Jo
.data B 1.@K }
szCaption db 'A MessageBox!',0 Ww4G
szText db 'Hello,world!',0 O,6!`\N D
;代码段 :UciFIa
.code @h3)!#\N
start: 'm:B(N@+
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 7NEn+OI4
invoke ExitProcess,NULL AV!
cCQ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ,"ZlY}!Gn
end start w!M ^p&T7
4(IP
C" WZsF^3
AWK Rgu^>
~
BEGIN { print "Hello, world!" } N `MQHQ1
[i _x
1
{`55nwd
BASIC (7
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传统版BASIC(例如GWBASIC): Xs_y!l
&[pwLYf7
10 PRINT "Hello, world!" \)WjkhG<w#
20 END 0<k!F3=
X9wi:
或在提示符输入: C3gz)!3
_=#mmZkq
?"Hello, world!":END 58,mu#yq6
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现代版BASIC(例如Quick BASIC): OwUbm0)h^V
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Print "Hello, world!" IgJC>;]u
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以下的语句在Quick BASIC中同样有效: UPF=X)!M
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? "Hello,world!" &|eQLY
#l
qMOD TM~+
KG@hjO
BCPL uI/
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GET "LIBHDR" LLiX%XOh
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LET START () BE gX<C-y6o
$( C? S %fF
WRITES ("Hello, world!*N") *1Q?~
$) oef(i}8O@
M:E#}(
;{RQ+ZX'[
Befunge db|$7]!w
"!dlrow olleH">v IZLX[y
, M-hnBt
^_@ r9[J3t*({~
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pz+#1=b]
Brainfuck ?*=Jq
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< tTal<4
+++++++++++++++.>.+++.------.--------.>+.>. (B5G?cB9
L\I/2aiE
~MF. M8
C _nUuiB>
#include <stdio.h> ,*US) &x
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int main(void) 62) F
{ !v=ha%w{
printf("Hello, world!\n"); NT 'Y h
return 0; =1C9lKm
} %VCHM GP=
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C++ Zh*I0m
#include <iostream> w'C(? ?mH
FU zY&@Y
int main() =
4L.
{ LJ?7W,?
std::cout << "Hello, world!" << std::endl; I6+5 mv\
return 0; "\
md
} ,
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%|Vq"MW,I
nM#\4Q[}Jh
C++/CLI *&s_u)b
int main() }/|1"D
{ qmhHHFjQ
System::Console::WriteLine("Hello, world!"); ?]S*=6
} 'tekne
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C# (C Sharp) 5n<Efi]j
class HelloWorldApp i{.!1i:
{ j1)w1WY0@
public static void Main() :7gIm|2"]
{ {8eNQ-4I
System.Console.WriteLine("Hello, world!"); @C#lA2(I4
} q4{ 6@q
} yd$y\pN=<
K\#+;\V
h1xYQF_`Z
COBOL N]3XDd|q
IDENTIFICATION DIVISION. d}1R<Q;F
PROGRAM-ID. HELLO-WORLD. tG'c79D\
!U@[lBW
ENVIRONMENT DIVISION. K=V)"v5o3
x(A.^Yz
DATA DIVISION. GKX#-zsh79
IIzdCa{l
PROCEDURE DIVISION. n=`UhC
DISPLAY "Hello, world!". EG,RlmcPp
STOP RUN. z[th@!3
B|tP3<
cOcm9m#
Common Lisp &W1c#]q@r
(format t "Hello world!~%") P69S[aqW
7+fFKZFKF
i9Qx{f88
DOS批处理 W1 E((2
@echo off AyddkjX
echo "Hello, world!" :%R3(
&
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7C=t19&R'
Eiffel (sY?"(~j?T
class HELLO_WORLD &@yW<<
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X
creation Y`%:hvy~
make L49`=p<
feature }JS?42CTaV
make is xRb-m$B}L
local E=7~\7TE
io:BASIC_IO J^U#dYd
do *g7dB2{
!!io >>p3#~/
io.put_string("%N Hello, world!") h/d&P
end -- make uCx\Bt"VI
end -- class HELLO_WORLD Pt E>08
R ~#\gMs
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Erlang AkGCIn3
-module(hello). 9k1n-po
-export([hello_world/0]). L0}"H
.
#,Rmu
hello_world() -> io:fwrite("Hello, World!\n"). w _n)*he)z
z"|^Y|`m
tJc9R2
Forth 94Z~]C
." Hello, world!" CR C]82Mt
Jjv,
)@yo
9M<{@<]dm
Fortran d+$a5 [^9
WRITE(*,10) bX8Bn0#a+
10 FORMAT('Hello, World!') +`zM^'^$
STOP -3A#a_fu
END xI$B",?(
'F1NBL
M '[.ay
HTML ,u/GA<'#M
<HTML> n>{>3?
<HEAD> nI&Tr_"tm
<TITLE> Hello World! </TITLE> 72.ZE%Ue
</HEAD> Ygr1 S(=
<BODY> w[t!?(![>
<p>Hello World!</p> Iq MXd K|
</BODY> to2dkU
</HTML> y8VLFe;
"YM)bc
52=?!
JM
HQ9+ J=ZNx;{6
H Z8Qmj5'[
%R(1^lFI$
4$C:r&K
INTERCAL UT%^!@u
PLEASE DO ,1 <- #13 7*`cWT_X
DO ,1 SUB #1 <- #238 ki48]#p
DO ,1 SUB #2 <- #112 F.zn:y X5
DO ,1 SUB #3 <- #112 H1]G<N3
DO ,1 SUB #4 <- #0 &Nl:
DO ,1 SUB #5 <- #64 (bY#!16C:
DO ,1 SUB #6 <- #238 Y;G+jC8
DO ,1 SUB #7 <- #26 N^H~VG&D(
DO ,1 SUB #8 <- #248 ewN!7
DO ,1 SUB #9 <- #168 zQ&`|kS
DO ,1 SUB #10 <- #24 \:, dWLu
DO ,1 SUB #11 <- #16 Cwl#(;@
DO ,1 SUB #12 <- #158 va[@XGaC3
DO ,1 SUB #13 <- #52 L>
> %
PLEASE READ OUT ,1 A70x+mjy^T
PLEASE GIVE UP *H8(G%a!^
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sE{A~{a`
Java {
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public class Hello LNOm"D?"
{ >fNRwmi
public static void main(String[] args) MIGcV9hf
{ Ey4%N`H-^
System.out.println("Hello, world!");
bVaydJ*
} gP:mZ7
} kdcr*7w
b S[;d5
p'tB4V qT
JSP T*e>_\Tx
<% S3l$\X;6X
out.print("Hello, world!"); :+: vBrJm
%> ;Sl]8IZ
[oqb@J2
l.NV]up+
MIXAL lu2"?y[2
TERM EQU 19 the MIX console device number FwKT_XkY
ORIG 1000 start address {N!Xp:(<7_
START OUT MSG(TERM) output data at address MSG e:#c\Ay+
HLT halt execution PZ06
_
MSG ALF "MIXAL" mWN9/+!
ALF " HELL" JL.noV3q$
ALF "O WOR" 8&+m5xS
ALF "LD " *c9/ I
END START end of the program ]rU$0)VN
[Vzp D 4
JO{Rth
Nuva WCJ$S\#
<..直接输出..> 4'9yMXR
Hello, world! K)=<hL
M*6}# ST
<..或者..> VjsQy>5m
tj<a , l
<. F-0 |&0
// 不带换行 `_M*2(rt
? "Hello, world!" W{'RR.
!0p_s;uu,W
// 或者 [ed6n@/O@
%+0
7>/
// 带换行 A"ApWJ3
?? 'Hello, world!' OcWy#,uC
.> {\u=m>2U|
lM/)<I\8
Ni bOtIZ
OCaml ,z8<[Q-#
let main () = vK@t=d
print_endline "Hello world!";; L!2BE[~
+OM`c7M:
EdgcdSb7
Pascal lyZ[tP S
program Hello; ! 3&_#VO
begin "eRf3Q7w:
writeln('Hello, world!'); *|97 g*G(
end. fjGYp
J)yNp,V
ii,/omn:
Perl (?[^##03MN
#!/usr/local/bin/perl E6
glR
print "Hello, world!\n"; {6E&\
r92C^h0
@-9u;aL
PHP HH`G/(a
<?php (rDB|kc^7
print("Hello, world!"); T;{M9W+
?> c^Y&4=>T
[
QHSCF5
<S/`-/=2
Pike T8*<
#!/usr/local/bin/pike 0qND 2_
int main() ~x}/>-d
{ >'\cNM~nf
write("Hello, world!\n"); mI;#Zq_j
return 0; X0IXj%\N
} ?<7o\Xk#{
KB3zQJY
0H<&*U_V
PL/I qQzf&"
Test: procedure options(main); "otks\I<
declare My_String char(20) varying initialize('Hello, world!'); gA`x-`
put skip list(My_String); ze5Hg'f
end Test; <|,0%bq)|
MJxTzQE
P8Nzz(JF
Prolog XnBpL6"T`
goal Ry5/O?QL
write("hello,world!"). `F)Q=
eYJ6&).F
Y%1J[W
Python 3>jL7sh%|
#!/usr/local/bin/python A$w0+&*=
print "Hello, world!" $8kQM
Mwm=r//
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REXX ?hW?w$C
say "Hello, world!" 7hQf
T76h
f(Hh(
Lbo8>L(
Ruby G|WO
#!/usr/bin/ruby v\LcZt`}
print "Hello, world!\n" &PfCY{_
z?a<&`W
KZK9|121
Scheme ve#*qz Y
(display "Hello, world!") lP9XqQ(
(newline) iymOq9
JjH#,@'.
{u/G!{N$
sed (需要至少一行输入) Z @:5vo
sed -ne '1s/.*/Hello, world!/p' u!iBAr5
,}9 G|$
*)PCPYB^
Smalltalk (6Ssk4
Transcript show: 'Hello, world!' *Ey5F/N}$H
,(%?j]_P2
<4caG2~q
SNOBOL m~upTQz
OUTPUT = "Hello, world!" cyR K&J
END 32DSZ0
Sk*-B@!S
.*9+%FN
SQL @PYCl
create table MESSAGE (TEXT char(15)); T);eYC"@
insert into MESSAGE (TEXT) values ('Hello, world!'); pv:7kgod
select TEXT from MESSAGE; V !Cu%4
drop table MESSAGE; z0XH`H|~
pP1|/f5n`
X)-9u 8
Tcl $6&P 69<
#!/usr/local/bin/tcl @@!Mt~\
puts "Hello, world!" h"mG \xi
Y Mes314"
&) '5_#S
TScript .Pp;%
? "Hello, world!" mPl2y3m%
t#kPEiD
i\4Q v"%
Turing ||{V*"+\
put "Hello, world!" 5kX#qT=
;g-L2(T05;
m\3r<*q6
UNIX-style shell Bl)znJ^
程序中的/bin/sh可改为您使用的shell Rn l
4
^LA.Y)4C2%
#!/bin/sh 2>Uy`B|f
echo 'Hello, world!' s_`PPl_D$K
Lk%u(duU^
M?61g(
GUI $On
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Delphi %?o@YwBo^E
program HelloWorld; $_2S,3 }
uses R@h@@lSf
Dialogs; IW48Sg
begin "E? 8.`T
ShowMessage('Hello, World!'); 2u0dn?9\
end. &VY(W{\eY
?DAW~+,!7o
1QfOD-lv
Nuva &4aY5y`8+f
<. FTB@70
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) w(lxq:>"
.> gq$]jWtCD
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r#Pkhut
Visual Basic 410WWR&4_
MsgBox "Hello, world!" 8J&K_JC^
'或者 U}c[oA
Print "Hello, world!" a59l"b
=xO q-M
/eM_:H5
Visual FoxPro p1dqDgF*
? "Hello, world!" i(eLE"G+
In-W,
}v0IzGKs
X11 0baq696<F
用一个程序 aL wd#/!
Dxc`K?M
xmessage 'Hello, world!' S-FoyID\H
>[4;K&$B
用C++和gtkmm 2 Ov
vM)?^#
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#include <iostream> Cm4$&?
#include <gtkmm/main.h> X%S9H^9
#include <gtkmm/button.h> NXAP=y3
#include <gtkmm/window.h> .3(=UQ
using namespace std; .Yxx
#8N9@
class HelloWorld : public Gtk::Window ^k&T