“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。 >piVi[`
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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》。 36e
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以下是用不同语言写成的Hello World程序的几个例子: xO[V>Ud
Ada T<oDLJA\
with Ada.Text_Io; use Ada.Text_Io; S-'R84M,F
procedure Hello is R_^0Un([
begin +Jm~Um!
Put_Line ("Hello, world!"); Z_U4Yy'NNw
end Hello; +Tt.5>N
zfrNM9C
n
g%~mt
汇编语言 E/V_gci
71n3d~!O>
x86 CPU,DOS,TASM kx?f, ^-
MODEL SMALL 12VIP-ABK
IDEAL r=-b@U.fk>
STACK 100H >{S
~(KxK
A!cY!aQ
DATASEG :6MV@{;PJ
HW DB 'Hello, world!$' xv"v='
dBw7l}
CODESEG ?;VsA>PV
MOV AX, @data +=:_a$98
MOV DS, AX e@Mg9VwDc
MOV DX, OFFSET HW Yt[LIn-v:
MOV AH, 09H b)eoFc)lc
INT 21H 1etT."
MOV AX, 4C00H 9(3]t}J5
d
INT 21H ZIN1y;dJ
END ,eGguNA9
GKc?
<?nz>vz
x86 CPU,GNU/Linux,NASM kXV;J$1
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). $Qz<:?D
;Enter this into "hello.asm" then type: |LW5dtQ
;"nasm -f elf hello.asm" [tT_ z<e`
;"ld hello.o -o hello" C7O8B;
;"./hello" S B~opN
zLgc j(;
section .data ;data section declaration ku4Gc6f#gG
msg db 'Hello World!',0AH +e^CL#Gs
len equ $-msg ;string length E{0e5. {
in K]+H]{
section .text ;code section declaration +BeA4d8b
global _start ;entry point (start of execution) DIABR%0
_start: mov edx,len ;string length &gJ1*"$9
mov ecx,msg ;string start D6~KLSKm
mov ebx,1 ;file handle: stdout Wv|CJN;4
mov eax,4 ;sys_write LC4VlfU
int 80h ;kernel system call P3 .
o}DRp4;Ka
mov ebx,0 ;return value ClY`2
mov eax,1 ;sys_exit uwQgu!|x
int 80h ;kernel system call qfG:vTm
Nw9@E R
E[WU
x86 CPU,Windows,MASM32 #.rkvoB0N
.386 kebk f,`p
.model flat,stdcall idB1%?<
option casemap:none eL>wKu:r
;Include 文件定义 p5jR;nOZ%l
include windows.inc el U %Z9
include user32.inc Siq]Ii0F;>
includelib user32.lib XHxJzYMc
include kernel32.inc >?1GJ5]\s
includelib kernel32.lib udT0`6l;
;数据段 fF(AvMsO
.data ep~+]7\
szCaption db 'A MessageBox!',0 ber&!9
szText db 'Hello,world!',0 0$ON`Vsu|
;代码段 DXG`% <ZMn
.code X~UL$S;
start: pV(k6h
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ,ss"s3
invoke ExitProcess,NULL c(uDkX
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> }W@refS
end start #8sy QWlG
]isq}Qv~
>|, <9z`D
AWK ~;jgl_5?b
BEGIN { print "Hello, world!" } 7m
ou
vp2w^/])u
0Ix,c( %
BASIC )u+O~Y95&i
传统版BASIC(例如GWBASIC): :8(jhs
8!0fT}
10 PRINT "Hello, world!" 1 $1>cuu
20 END
&a4FGzR#
#q K.AZi
或在提示符输入: Cu5_OJ
cpl Ny?UIC
?"Hello, world!":END Ux1j +}y
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现代版BASIC(例如Quick BASIC): Gk+R,:
[0qswsV
Print "Hello, world!" |||m5(`S
^mjU3q{;
以下的语句在Quick BASIC中同样有效: )sW!s3>S>
pfu"vo(t_
? "Hello,world!" OwEV$Q
GZWqPM4S\
epKr6
xq
BCPL @sG*u >
GET "LIBHDR" t{yj`Vg
0ETT@/)]z
LET START () BE z6 }p4
$( p7 !y#
WRITES ("Hello, world!*N") X $V_
$) qE3Ud:j
+L"F] _?
6eUGE 4NF(
Befunge M*bsA/Z
"!dlrow olleH">v j94~cYV
, O'B3s y
^_@ +,,dsL
xOPQ~J|z
;~DrsQb
Brainfuck y\j[\UZKO
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< pY-!NoES
+++++++++++++++.>.+++.------.--------.>+.>. ~Er0$+q=Y;
[T4{K&
BriL^]
C rz,,ku4qt
#include <stdio.h> 8\9W:D@"x
@GD $KR9
int main(void) ?*$uj(
{ {ZSAPq4)L
printf("Hello, world!\n"); n|? sNM<J3
return 0; zRmVV}b
} H;NAS/OhS
?]bx]Y;
ZbVn"he
C++ %
>a
/m.$
#include <iostream> y`8U0TE3R
Ym"^Ds}
int main() ]hy@5Jyh
{ Du
+_dr^4
std::cout << "Hello, world!" << std::endl; QHja4/
return 0; fd #QCs
} xjF>AAM_Px
~:k
r;n2
8RuW[T?
C++/CLI TghT{h@
int main() <$hv{a
{ 0sA`})Dk
System::Console::WriteLine("Hello, world!"); E+EcXf
} Ek_&E7
)MSCyPp5
k&:q|[N
C# (C Sharp) @aN~97
H\
class HelloWorldApp F'>yBDm*OM
{ %).I&)i
public static void Main() AX&Emz-
{ #g@4c3um|
System.Console.WriteLine("Hello, world!"); >TM{2b,(p
} [O'aka
Q
} >Ik%_:CC`
_-H,S)kI`
Vt \g9-[
COBOL ?Fl O,|
IDENTIFICATION DIVISION. 9{geU9&Z
PROGRAM-ID. HELLO-WORLD. nh0gT>a>@
<+r~?X_
ENVIRONMENT DIVISION. A@?-"=h}
p<h(
DATA DIVISION. bC"h7$3
+~YoP>
PROCEDURE DIVISION. 2Mq@5n
DISPLAY "Hello, world!". _t;^\"\
STOP RUN. z>0$SBQ-
cZ
!$XXA`
}@jJv||
Common Lisp qhG2j;
(format t "Hello world!~%") ReD]M@;
^K: :g)
^\ln8!;
DOS批处理 ^8bc<c:P
@echo off jj;TS%
echo "Hello, world!" 3!cenyE
"x.iD,>k
jTNt!2 :B
Eiffel 6 <`e]PT
class HELLO_WORLD %Jd!x{a`>A
E_$nsM8?
creation ~ArRD-_t
make p ^TCr<=
feature ^~TE$i<
make is ar
7.O;e
local kREFh4QO,
io:BASIC_IO \(=xc2
do [-"ZuUG
!!io :6%ivS
io.put_string("%N Hello, world!") IO7gq+
end -- make A /c
end -- class HELLO_WORLD k^ fW/
-Jv3D$f]a
q9VBK(,X
Erlang :/6aBM?
-module(hello). v8'XchJ
-export([hello_world/0]). W`oyDg,D
A.7lo
hello_world() -> io:fwrite("Hello, World!\n"). fWW B]h
!B#lZjW#
!2&)6SL/
Forth ;.xKVH/@
." Hello, world!" CR {*g{9`
F4"bMN
P_mP ^L
Fortran `-cw[@uD
WRITE(*,10) `'P&={p8
10 FORMAT('Hello, World!') (nBh6u*
STOP -$#2?/uqC
END 4bdCbI
D%?9[Qb
z[Q e86L
HTML 65U\;Ew
<HTML> 0t"Iq71/
<HEAD> m~W[,7NE0&
<TITLE> Hello World! </TITLE> #u+qV!4
</HEAD> 1^GRUbOU[
<BODY> @q>#]8
<p>Hello World!</p> b KIL@AI
</BODY> %qE"A6j
</HTML> EB}~^ aY
&;r'JIp
</5
HQ9+ wL]#]DiE
H snu?+*6
7F]Hq
E+e),qsbO
INTERCAL /zQx}U)TP
PLEASE DO ,1 <- #13 So ~QZ%YA
DO ,1 SUB #1 <- #238 Jy"\_Vvl
DO ,1 SUB #2 <- #112 20haA0s
DO ,1 SUB #3 <- #112 |%#NA!e4wA
DO ,1 SUB #4 <- #0 U7g,@/Qx
DO ,1 SUB #5 <- #64 q(R|3l^6T
DO ,1 SUB #6 <- #238 {(asy}a9K
DO ,1 SUB #7 <- #26 #j+cl'
DO ,1 SUB #8 <- #248 .!lLj1?p
DO ,1 SUB #9 <- #168 a+ O?bO
DO ,1 SUB #10 <- #24 aR@+Qf
DO ,1 SUB #11 <- #16 <-G3Qgm
DO ,1 SUB #12 <- #158 S1~K.<B
DO ,1 SUB #13 <- #52 VG$;ri>
PLEASE READ OUT ,1 z%JN| 5
PLEASE GIVE UP p/7'r
O}2/w2n
e0ni
Java eLgq
)
public class Hello XDyo=A]
{ v_v>gPl,
public static void main(String[] args) &
@_PY
{ X&rsWk
System.out.println("Hello, world!"); <4@8T7
} m#O; 1/P
} (]&B'1b
9H:J&'Xi7
Zy?!;`c*{
JSP GNB'.tJ:0Y
<% :9x]5;ma
out.print("Hello, world!"); *uccY_
%> f
w)tWJVD
]c|JxgU
@8aV*zjB
MIXAL GiK,+M"d
TERM EQU 19 the MIX console device number q|s:&&Wf
ORIG 1000 start address $[Nf?`f(t_
START OUT MSG(TERM) output data at address MSG 7zU~X,
HLT halt execution }vgM$o
MSG ALF "MIXAL" s[/d}S@ >
ALF " HELL" :M`~9MCRf
ALF "O WOR" E[zq<&P@
ALF "LD " saQo]6#
END START end of the program &t_TLV 8T
aCIz(3^
dNqj | Vu
Nuva :ec>[N~KG
<..直接输出..> <pKOFN%m
Hello, world! -'WR9M?fq
>XRf=
:3
<..或者..> e.XD5~Ax
H.]<fvP
<. \LQZoD?W
// 不带换行 +u5xK
? "Hello, world!" 4k<U5J
#SI]^T|
// 或者 2VX9FDrnk
60e{]}Z
// 带换行 gXn`!
?? 'Hello, world!' gQu!(7WLI
.> K$:btWSm
>){}nlQf
v6! `H
OCaml I4UsDs*BD
let main () = Q[H4l({E
print_endline "Hello world!";; s,/C^E
yiH;fK +x
o"P )(;
Pascal K)Z~ iBRM
program Hello; At[SkG}b
begin j
b'M
writeln('Hello, world!'); "qZTgCOY2
end. FLkZZ\
I.~=\%Z{
,qV 7$u
Perl loBW#>
#!/usr/local/bin/perl )u]=^
print "Hello, world!\n"; ]+w 27!
_ogN
%X%f0J
PHP )7P>Hj
<?php i/!KUbt
print("Hello, world!"); WHLTJ]OB
?> b{x/V 9&|
)/OIzbA3#
[{&OcEf
Pike *] >R
#!/usr/local/bin/pike f/0k,~,*
int main() Z$('MQ|Ur
{ YbZ?["S&
write("Hello, world!\n"); 3Y +;8ld
return 0; tF<&R&=
} gdyWuOxa|
Zm6jF
'r -B%D=
PL/I W&I:z-VH
Test: procedure options(main); GGZ9DC\{
declare My_String char(20) varying initialize('Hello, world!'); .]<gm9l
put skip list(My_String); x1Gc|K/-
end Test; |A0U3$S=
ajkpU.6E:
d5{RIM|
Prolog m?4HVv
goal :qShP3 ^
write("hello,world!"). 7[R`52pP
N
PqO
b
|GPYbxzc
Python zt!>
#!/usr/local/bin/python Zba<|C
print "Hello, world!" LCH w.
Pe11azJ
]]_c3LJ2`
REXX 889^P`Q5
say "Hello, world!" 8LuU2Lo
Go]y{9+(7
{aopGu?i
Ruby W55kR.X6M
#!/usr/bin/ruby m5P@F@
print "Hello, world!\n" n#4T o;CS
rV-Xsf7Z
/P/0\3TCi
Scheme lX50JJwk
(display "Hello, world!")
7(o:J
(newline) `Uvc^
,Vz-w;oDn
"N}MhcdS
sed (需要至少一行输入) &,,:pL[
sed -ne '1s/.*/Hello, world!/p' n-dC!t
Z`%^?My
6]HMhv
Smalltalk 4T){z^"
Transcript show: 'Hello, world!' AmCymT3P*e
NKVLd_f k
X@A8~kj1
SNOBOL 0juP"v$C>
OUTPUT = "Hello, world!" V9>$M=
END $HRl:KDdP~
^ZBTd5t#
UZ:z|a3
SQL i0?/\@gd
create table MESSAGE (TEXT char(15)); E 429<LQI/
insert into MESSAGE (TEXT) values ('Hello, world!'); 3_{rXtT)'
select TEXT from MESSAGE; usi3z9P>n
drop table MESSAGE; #nj;F'O](
z\WyL ;
*d 4A3|
Tcl lgbq^d
#!/usr/local/bin/tcl srKEtd"
puts "Hello, world!" 7$R^u7DZ
25W #mh,'
tq*6]q8c>
TScript 9R[PpE''
? "Hello, world!" 4P7r\hs
3A! |M5
q$<VLrx
Turing "5\6`\/
put "Hello, world!" }/L#<n`Z
*A0d0M]cg
R|*Eg,1g -
UNIX-style shell IfP?+yPa
程序中的/bin/sh可改为您使用的shell G//hZwf0
lxR]Bh+
#!/bin/sh @)ls+}=Y
echo 'Hello, world!' _]0<G8|Rv
YlZ&4
@qF:v]=_@
GUI !bn=b>+
&}#zG5eu
Delphi ]KUeSg|
program HelloWorld; hij
9r z
uses rWN%j)#+
Dialogs; VwLo
begin )3 '8T>^<K
ShowMessage('Hello, World!'); -O $!sFmY
end. *3fhVl=8^*
a3Xd~Qs
{?}^HW9{
Nuva 5'|W(yR}
<. OgzKX>N`A
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) gA] 3h8%w
.> *(Z\"o!
GgtYO4,
$h
>rs
Visual Basic ~bw=;xF{3
MsgBox "Hello, world!" i
G%R'/*
'或者 :=:m4UJb
Print "Hello, world!" }:]CXrdg>
EO/41O
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