“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。 8='21@wrN
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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》。 $;uWj|
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以下是用不同语言写成的Hello World程序的几个例子: Pgw%SMEp
Ada ESxC{
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with Ada.Text_Io; use Ada.Text_Io; iW1ih QX
procedure Hello is N~;
khS]
begin Ge:-|*F
Put_Line ("Hello, world!"); }
ndvV~*1
end Hello; `3y!XET
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b^,Mw8KsO
汇编语言 R #3Q$
B_"OA3d_
x86 CPU,DOS,TASM Uk*;C
MODEL SMALL SXBQ
IDEAL ~"q,<t
STACK 100H j&[.2PW\
>!Ap/{2
DATASEG m-'(27
HW DB 'Hello, world!$' VUy)4*
A_jB|<bjTP
CODESEG ,/?%y\:J
MOV AX, @data oBj>9I;
MOV DS, AX noaN@K[GO
MOV DX, OFFSET HW Jn[q<e"
MOV AH, 09H c. TB8Ol
INT 21H O~#uQm
MOV AX, 4C00H 2JA&{ch
INT 21H *{.&R9#7U'
END <RoX| zJw
| 3N.5{
9xK4!~5V
x86 CPU,GNU/Linux,NASM r ,3Ww2X-
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). b#p~F}qT
;Enter this into "hello.asm" then type: tB ,.
;"nasm -f elf hello.asm" x0u?*5-t
;"ld hello.o -o hello" 9B+ zJ Vte
;"./hello" `rz`3:ZH
MdVCD^B
section .data ;data section declaration y\)G7
(
msg db 'Hello World!',0AH A]Q1&qM%
len equ $-msg ;string length hy$MV3LP
ol?z<53X]
section .text ;code section declaration ^A *]&%(h
global _start ;entry point (start of execution) (>rS
_#^
_start: mov edx,len ;string length 28T\@zi
mov ecx,msg ;string start u=@h`5-fp
mov ebx,1 ;file handle: stdout +}c|O+6g
mov eax,4 ;sys_write <\1}@?NGC
int 80h ;kernel system call $[M}K
U`bC>sCp
mov ebx,0 ;return value fa!3/X+
mov eax,1 ;sys_exit |D;_:x9
int 80h ;kernel system call 8!u/
a%7"_{s1
|5oKq'(b
x86 CPU,Windows,MASM32 , @%C8Z
.386 {B FT
.model flat,stdcall u<l#xud
option casemap:none ~vW)1XnK
;Include 文件定义 :DZLjC
include windows.inc .9T.3yQ
include user32.inc Tjnt(5 g
includelib user32.lib QD$}-D[
include kernel32.inc )u39}dpeu
includelib kernel32.lib E$]a?uA:
;数据段 {PN:bb
.data abM84EU
szCaption db 'A MessageBox!',0 Xtci0eS#V
szText db 'Hello,world!',0 N4I^.k<-A
;代码段 p>k]C:h
.code 9 '2=
start: .cw!ls7d
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK L7SEswMti
invoke ExitProcess,NULL ixOEdQ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> q{a#HnZo"
end start 90Xt_$_}s
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NNwc!x)*
AWK %lXbCE:[
BEGIN { print "Hello, world!" } ^[ET&"
E;9Z\?P
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BASIC 48wDf_<f5=
传统版BASIC(例如GWBASIC): @(Z( /P;:
{J{1`@
10 PRINT "Hello, world!" -Bj.hx*
20 END g<fP:/
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或在提示符输入: /
>%L[RJ4
^rL,&rk
?"Hello, world!":END <# >Oy&E
>W'j9+Va
现代版BASIC(例如Quick BASIC): /4yOs@#
.
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Print "Hello, world!" ]K7`-p~T
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以下的语句在Quick BASIC中同样有效: h9)RJSF4
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? "Hello,world!" Z
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Y =9j2 ]t
Te+^J8
BCPL K${}r0
GET "LIBHDR" [G\o+D?2
r]9 e^
LET START () BE *.8JP
$( Fqo&3+J4
WRITES ("Hello, world!*N") }S,-uggz
$) 3x![8 x
H "O$&
sW?B7o?
Befunge ^PC\E}
"!dlrow olleH">v y<|)'(
, _e* c
^_@ ;|6FdU
[@<G+j
vb
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Brainfuck FRgLlp8x
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< r
sLc&2F
+++++++++++++++.>.+++.------.--------.>+.>. V/ +Jc(N
{|XQO'Wg
ge$LIsE8
C qC..\{z
#include <stdio.h> YN^T$,*
n26>>N
int main(void) HVGr-/
{ H UkerV
printf("Hello, world!\n"); )tD6=Iz^5
return 0; <5I1 DF[
} r4?b0&Xq
6JH56
GmbIFOT~
C++ zP&q7 t;>
#include <iostream> ;E#\
(]XbPW
int main() sP y2/7Wqd
{ 5oJ Dux }
std::cout << "Hello, world!" << std::endl; Fu%X
return 0; V&[eSVY?
} x'qWM/
J$QBI&D
4\6:\
C++/CLI %2D17*eK
int main() DbtF~`3, .
{ VFSz-<L
System::Console::WriteLine("Hello, world!"); Me/\z^pF
} VNj@5s
;'HF'Z
!5UfWk\G
C# (C Sharp) -CD\+d "
class HelloWorldApp
<uD qYT$6
{ =VSkl;(O
public static void Main() 2]2H++
{ rl?7W];
System.Console.WriteLine("Hello, world!"); k|FSz#Y
} kXwi{P3D$
} L2fVLKH
/\J|Uj
iYKU[UP?
COBOL +.@c{5J<
IDENTIFICATION DIVISION. ia4k :\
PROGRAM-ID. HELLO-WORLD. U=cWmH
os$nL'sq
ENVIRONMENT DIVISION. ^u)rB<#BR
mW4%2fD[
DATA DIVISION. YH\j@^n
3.vgukkk5
PROCEDURE DIVISION. ~Ltr.ci
DISPLAY "Hello, world!". [w+Q^\%bN
STOP RUN. yC
!/PQ"
| ^GyH$.
|0
!I5|<k
Common Lisp t1ze-Ht;
(format t "Hello world!~%") w`gyE
6A
."mlSW"Wm
V1utUGJV
DOS批处理 .Yx_:h=u
@echo off 8_xLl2
echo "Hello, world!" n &}s-`D
,2`~ NPb
JwP:2-o
Eiffel {#hVD4$b
class HELLO_WORLD r<yhI>>;<
$[(d X!]F
creation ?<~WO?
make /[pqI0sf<A
feature O@&+} D>
make is DW2>&|
local '%7 Bx of
io:BASIC_IO &jf7k
<^
do )[&zCqDc
!!io HL 8eD^
io.put_string("%N Hello, world!") "H+,E_&(
end -- make , =y#m-9
end -- class HELLO_WORLD VLI'
a5?8QAO~r
0k[2jh
Erlang AsxD}Nw[Z*
-module(hello). (^: p
-export([hello_world/0]). TFH&(_b
.C!vr@@]
hello_world() -> io:fwrite("Hello, World!\n"). V|FrN*m
p/olCmHD)
$a#H,Xv#
Forth ^jyD#
." Hello, world!" CR .i/m
1}g:|Q
5:_hP{ @
Fortran jRQ+2@n{E
WRITE(*,10) 0Y?H0
10 FORMAT('Hello, World!') *e{PxaF!C
STOP 5Ec/(-F
END ]<trA$ 0
1W,(\'^R
Mi0sC24b|
HTML SbT5u3,'
<HTML> &M[f&_"8Q
<HEAD> P+(i^=S
<TITLE> Hello World! </TITLE> ,+1m`9}
</HEAD> ejePDgi_[
<BODY> @WOM#Kc
<p>Hello World!</p> |a(fejO3
</BODY> X?Pl<l&
</HTML> b{cU<;G)y.
{"}V&X160o
-Zc![cAlO
HQ9+ {aOkV::
H 0D ~
Tga)
wEEn?
%dttE)oH?
INTERCAL p{tK_ZBy]c
PLEASE DO ,1 <- #13 *3+-W
DO ,1 SUB #1 <- #238 m7jA
,~O
DO ,1 SUB #2 <- #112 gNj7@bX~
DO ,1 SUB #3 <- #112 z@U}~TvP
DO ,1 SUB #4 <- #0 ?dq#e9
DO ,1 SUB #5 <- #64 dl|gG9u4Q
DO ,1 SUB #6 <- #238 M {a
#
DO ,1 SUB #7 <- #26 2U$"=:Cf
DO ,1 SUB #8 <- #248 `E`HVZ}
DO ,1 SUB #9 <- #168 ^twivNB
DO ,1 SUB #10 <- #24 3YL
l;TP_
DO ,1 SUB #11 <- #16 c:4P%({
DO ,1 SUB #12 <- #158 wSXVyg{
DO ,1 SUB #13 <- #52 b>=_*nw9
PLEASE READ OUT ,1 &"E
lm
PLEASE GIVE UP 5W? PCOh\
U~f4e7x*O
pV\YG B+
Java \=e8%.#@J
public class Hello S]>wc
yy=n
{ [
!%R#+o=F
public static void main(String[] args) S-Fo
{ `wz[='yM
System.out.println("Hello, world!"); @4GA^h
} }SfbCa)UO
} 5f7zk
6^F'|Wh
>)nS2bOE
JSP CXaWgxlK:a
<% 4B[D/kIg
out.print("Hello, world!"); R)8s
%> X&\d)/Y
_ -..~K.|
2.I^Xf2
MIXAL ]!"S+gT*C
TERM EQU 19 the MIX console device number ]`o!1( GA
ORIG 1000 start address S;\R!%t_
START OUT MSG(TERM) output data at address MSG &)9{HRP
HLT halt execution %j,iAUE<
MSG ALF "MIXAL" oF:v
JDSS
ALF " HELL" WCq
/c6 D
ALF "O WOR" ODw`E9
ALF "LD " YV'pVO'_+
END START end of the program `#s#it'y
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n{5NNV6
Nuva Y}G_Z#- !
<..直接输出..> |CD"*[j]
Hello, world! [a1jCo
" {dek
<..或者..> qv2!grp]*W
_r Y,}\
<. Y$
Fj2nk+
// 不带换行 U]6&b
? "Hello, world!" *A}WP_ZQ
QrYa%D+
// 或者 w`HI]{hE~N
~W0(1#
i
// 带换行 \1%l^dE@
?? 'Hello, world!' \FmKJ\
.> ,?cH"@RJ
>7Jr^o#|_x
w|Cx>8P8@
OCaml qi[Z,&
let main () = ^-)txC5{T
print_endline "Hello world!";; k;yw#Af8
f{#j6wZM
(K..k-o`.
Pascal )Di \_/G
program Hello; <X7\z
begin AIijCL
writeln('Hello, world!'); U
Z_'><++
end. V\5 L?}
=^DLywAh}u
T?
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Perl Cr ?4Ngw
#!/usr/local/bin/perl l1=JrpCan
print "Hello, world!\n"; e(
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6i@\5}m=
VaONd0Z I
PHP X|LxV]
<?php R,2P3lv1v@
print("Hello, world!"); C(T;>if0NH
?> >ezi3Zx^
G[Lpe
h@{_duu
Pike '])2k@o@
#!/usr/local/bin/pike *LC+ PZV@
int main() +UN <Zp7I/
{ ./6<r OW
write("Hello, world!\n"); F/d7q%I
return 0; ~X(UcZ2
} g| <wyt[
!9iGg*0dx
$
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PL/I w~R`D
Test: procedure options(main);
kzmQm
declare My_String char(20) varying initialize('Hello, world!'); IeX^4rc(
put skip list(My_String); -f1k0QwL
end Test; `/&SxQB<
/\s}uSW
>O9o,o/6R
Prolog C#V ~Y
goal owpWz6k7
write("hello,world!"). e?0q9W
F|bYWYED;
I&|f'pn^<
Python SAV%4
#!/usr/local/bin/python NG&_?|OmV
print "Hello, world!" %6%<?jZ
-D^A:}$
J<gJc*Q
REXX &ZHC-qMRK
say "Hello, world!" <Peebv&v
FbnO/! $8
/Ss7"*JLe
Ruby RF!a//
#!/usr/bin/ruby w9RS)l2FQ
print "Hello, world!\n" <AlZ]~Yct
Y<"7x#AB!
5v)(8|.M
Scheme h4pTq[4*
(display "Hello, world!")
'uDjFQX
(newline) o'<^LYSnB
60=m
F(#rQ_z]
sed (需要至少一行输入) u}bf-;R
sed -ne '1s/.*/Hello, world!/p' 2g9G{~,@g
88"Sai
+|Hioq*,t
Smalltalk tGdf/aTjy
Transcript show: 'Hello, world!' &M/0g]4p
:HxA`@Ok
|]Z:&[D]i
SNOBOL /"H`.LD.?
OUTPUT = "Hello, world!" Z}A%=Z\/3
END 8mLP5s!7
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SQ,?N
XZ
SQL I2$T"K:eo
create table MESSAGE (TEXT char(15)); /N>e&e[35\
insert into MESSAGE (TEXT) values ('Hello, world!'); 8 #X5K
select TEXT from MESSAGE; kc'pN&]r:
drop table MESSAGE; "1q>At
CxhY$%C (L
Q(d9n8
Tcl q{2I_[p
#!/usr/local/bin/tcl dUgrKDNyA
puts "Hello, world!" bb42v7?
m]_FQWfet
-"Y{$/B
TScript m+{K^kr[
? "Hello, world!" z|7zj/+g
t&5%?QyM
cr?7O;,
Turing YI-O{U
put "Hello, world!" xt'tL:d
6qe*@o
Z34Wbun4
UNIX-style shell .*$OQA
程序中的/bin/sh可改为您使用的shell [>#*B9
U7xmC
#!/bin/sh 3'c\;1lhT
echo 'Hello, world!' 6OiSK@<Hk
58%'UwKn
!|2VWI}
GUI 2RF^s.W
e&MC|US=\
Delphi S1 _6C:^k
program HelloWorld; Obw?_@X
uses T9 <2A1
Dialogs; T{]~07N?
begin ?Y:x[pOe
ShowMessage('Hello, World!'); M,j(=hRJ/E
end. o }Tz"bN
Z'^U ad6
{Z; jhR,
Nuva *xf ._~E
<. c/L>>t
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) .%'(9E
.> ULc`~]
b1pQ`qt
Mcw4!{l`
Visual Basic Lf:uNl*D
MsgBox "Hello, world!" 5`~mmAUk;`
'或者 r
_,_5
@0e
Print "Hello, world!" JO&JP3N1
4fh^[\
%CZ-r"A
Visual FoxPro : FAH\
? "Hello, world!" 53 QfTP
QQk{\PV
<
`qRA]
X11 6*9}4`
用一个程序 ~5ZvOX6L2
d#:3be{|&q
xmessage 'Hello, world!' /Y[~-Y+!,
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用C++和gtkmm 2 #5sD{:f`
BE&B}LfvfO
#include <iostream> =U
OLT>!
#include <gtkmm/main.h> &