“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。 IhA* "
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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》。 r3\cp0P;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: )'4k|@8|
Ada #/Eb*2C`b
with Ada.Text_Io; use Ada.Text_Io; W]5USFan
procedure Hello is P<f5*L#HD
begin 6C+"`(u%V
Put_Line ("Hello, world!"); )lZp9O
end Hello; dx+hhg \L
$]/Zxd
sUU{fNC6|
汇编语言 x(eb5YS
GPGm]G t
x86 CPU,DOS,TASM n;:rf 7hGY
MODEL SMALL )kkhJI*v
IDEAL R@`y>X GNJ
STACK 100H .Fa4shNV
ZAXN6h
DATASEG 2!$gyu6bpG
HW DB 'Hello, world!$' yd?x=|
#jxe%2'Ot
CODESEG q2et|QCru
MOV AX, @data fOMvj%T@2
MOV DS, AX zBe8,, e
MOV DX, OFFSET HW `IY/9'vT
MOV AH, 09H !ki.t
INT 21H KFFSv{m[
MOV AX, 4C00H ?IGVErnJJC
INT 21H [NTtz
<i@
END :P(K2q3
&Ky_v^
4`8<
x86 CPU,GNU/Linux,NASM r!{LLc}>
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). hc'-Dh
;Enter this into "hello.asm" then type: %Pqf{*d8
;"nasm -f elf hello.asm" |H!9fZO
;"ld hello.o -o hello" #2EI\E&$
;"./hello" mI>,.&eo
_X'"w|0
section .data ;data section declaration PfZ+PqS
msg db 'Hello World!',0AH ?:L:EW8
len equ $-msg ;string length mb!9&&2-t
U\sHx68
section .text ;code section declaration = hN
!;7G
global _start ;entry point (start of execution) }ga@/>Sl&
_start: mov edx,len ;string length S*,rGCt'T
mov ecx,msg ;string start w#g#8o>'
mov ebx,1 ;file handle: stdout ]Qe{e3p;
mov eax,4 ;sys_write b@2J]Ay E*
int 80h ;kernel system call $]rj73p^tH
{pHM},WJ
mov ebx,0 ;return value dS5a
mov eax,1 ;sys_exit l}lIi8
int 80h ;kernel system call 6}KZp~s
'`Wwt.A
aN,M64F
x86 CPU,Windows,MASM32 E{n:J3_X^d
.386 Al`e/a
.model flat,stdcall NoJ`6MB
option casemap:none NmSo4Dg`U
;Include 文件定义 }nMPSerE
include windows.inc XZ5 /=z
include user32.inc qVs\Y3u(
includelib user32.lib w$u3W*EoU^
include kernel32.inc D11F.McM
includelib kernel32.lib }@^4,FKJ
;数据段 Bk+{RN(w
.data <$hu
szCaption db 'A MessageBox!',0 (k|_J42[
szText db 'Hello,world!',0 is@b&V]
;代码段 M_%B|S
{
.code fks)+L'
start: >(snII
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK bl'z<S,
'
invoke ExitProcess,NULL <~)kwq'
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> jH6&q~#
end start
J;prC
$/7pYl\n
+Lnsr\BA
AWK E~AjK'Z
BEGIN { print "Hello, world!" } D91e\|]
c-Pw]Ju
+L5\;
BASIC e0$=!QlPr
传统版BASIC(例如GWBASIC): =dx1/4bZl|
!XzF67
10 PRINT "Hello, world!" 5j-]EJb
20 END ZZyDG9a>7
-<_Ww\%8M
或在提示符输入: U5r7j
.n=Z:*JqQ
?"Hello, world!":END }E7:ihy
2r6'O6v
现代版BASIC(例如Quick BASIC): ~M(5Ho
.&x}NYX4
Print "Hello, world!" {Ixg2=E\
X7g3
以下的语句在Quick BASIC中同样有效: 8Mbeg
,P
~I(Hc.Q
? "Hello,world!" x+G0J8cW
ZoB{x*IH
nA~E
"*
BCPL NzW`B^p
GET "LIBHDR" NxLXm,
:(_+7N[KA
LET START () BE X@|&c]]
$( d
O~O
|Xsb
WRITES ("Hello, world!*N") 1lpwZ"
$) +L=*:e\j
Nlj^Dm
@EoZI~
Befunge A?*o0I
"!dlrow olleH">v ^xZ
e2@
, $v b,P(
^_@ W@2vjz
e9E\% p
l)-Mq@V
Brainfuck @K:N,@yq
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 1>Q'R
+++++++++++++++.>.+++.------.--------.>+.>. <vUVP\u~$
lW 81q2n
P%MfCpyj
C
3!
~K^Z]
#include <stdio.h> {W\T"7H
SAY
f'[|w
int main(void) 4R8G&8b
{ _pH{yhA
printf("Hello, world!\n"); T{}fHfM
return 0; &'' WRgZ}
} K]xa/G(
:5yV.7
%AW4.3()8
C++ n$:IVX"2b
#include <iostream> "+uNmUUnm
U'*t~x<
int main() UgN28YrW
{ wJlX4cT4YV
std::cout << "Hello, world!" << std::endl; pN&c(=If
return 0; m~'? /!!
} Yh)Isg|0>
:L
3&FA
sFDG)
C++/CLI W~Z<1[
int main() .O0O-VD+a
{ x|KWyfOS
System::Console::WriteLine("Hello, world!"); Ac|5. ?|N
} gip/(/NX
|~<N -~.C
rbZ[!LA
C# (C Sharp) yE} dj)wd
class HelloWorldApp 5yVkb*8HS
{ V|>oGtt7
public static void Main() gLsU:aeCT
{ fj ,m
System.Console.WriteLine("Hello, world!"); KL'zXkS
} <:|3rfm#
} tU/k-W3X
q:8_]Qt
voe7l+Xk
COBOL F%rHU5CkV
IDENTIFICATION DIVISION. 8Q)@
PROGRAM-ID. HELLO-WORLD. 26n^Dy>}
UMN*]_'+;b
ENVIRONMENT DIVISION. (.3'=n|kE
[4J6iF
DATA DIVISION. De_ CF8
V#q}Wysft
PROCEDURE DIVISION. MP>n)!R[`
DISPLAY "Hello, world!". e &9F\e
STOP RUN. @uH#qg7
=iHiPvP0
Fd\e*ww'
Common Lisp A4mSJ6K]
(format t "Hello world!~%") OJb*VtZz5R
#&,H"?"
8%RI7Mg
DOS批处理 D,ly#Nn
@echo off OVk~N)
echo "Hello, world!" uENdI2EY8y
6yAA~;*5'
Wd(86idnc
Eiffel }vt%R.u
class HELLO_WORLD DW(~Qdk
0F;,O3Q
creation D';eTy Y
make giavJ|
feature Cpx+qQt0
make is m|svQ-/j
local R,@g7p
io:BASIC_IO ?HHzQ4w%{
do 99 wc
!!io sNU}n<J-
io.put_string("%N Hello, world!") mE#nU(+Ta
end -- make
s* jfMY
end -- class HELLO_WORLD ]qw0V
l!IKUzt)7
99iUOw c
Erlang hh.Q\qhubB
-module(hello). #-cTc&$O;
-export([hello_world/0]). *9gD*AnM,
gY9\o#)<
hello_world() -> io:fwrite("Hello, World!\n"). 0&fl#]oCE
/owO@~G
PQj<[rY
Forth 19d6]pJ5
." Hello, world!" CR PoD^`()FR{
'=cKU0
G #
`EMi0hm&H
Fortran *i<\iMoW
WRITE(*,10) S-Ai3)t6
10 FORMAT('Hello, World!') I+,SZ]n
STOP 6/mF2&&g
END rj H`
So4nJ><p
s'_,:R\VM>
HTML m s~8QL
<HTML> )fh0&Y; R
<HEAD> et$uP
<TITLE> Hello World! </TITLE> qSiWnN8D
t
</HEAD> =ak7ldA=2
<BODY> 9XV^z*E(J
<p>Hello World!</p> IjZ@U%g@;
</BODY> !Ua&0s%
</HTML> 0\a8}b||
[N|xzMe
{0's~U+@
HQ9+ x,Y5U+]E
H |pWaBh|r
# .q#OC
u.6P-yh
INTERCAL jM__{z
PLEASE DO ,1 <- #13 x0Bw{>Q
DO ,1 SUB #1 <- #238 ,86K
DO ,1 SUB #2 <- #112 /)V4k:#b
DO ,1 SUB #3 <- #112 fA8ozL T
DO ,1 SUB #4 <- #0 WD?Jk9_F
DO ,1 SUB #5 <- #64 Jyu`-=It
DO ,1 SUB #6 <- #238 (@]tG?I=
DO ,1 SUB #7 <- #26 |Cf
mcz(56
DO ,1 SUB #8 <- #248 V-vlTgemwc
DO ,1 SUB #9 <- #168 G :4;y7
DO ,1 SUB #10 <- #24 ,$Tk$
DO ,1 SUB #11 <- #16
kfj%
DO ,1 SUB #12 <- #158 v*P[W_.
DO ,1 SUB #13 <- #52 \p6 }
PLEASE READ OUT ,1 v["3
PLEASE GIVE UP wOHEv^,
.s};F/(diD
dERc}oAh(
Java * bZ\@Qm
public class Hello #AncOo
{ zrx JN
public static void main(String[] args) *]{=8zc2
{ EUwQIA2c8N
System.out.println("Hello, world!"); r'd/qnd
} )vHi|~(
} /2h][zrZ[.
G?[-cNdk
BW71 s
JSP ?L`ZKRD
<% @)z*BmP
out.print("Hello, world!"); .;slrg(5F
%> &s-VSu7
ve%l({
^/{4'\p
MIXAL
^Fp=y,D
TERM EQU 19 the MIX console device number BkT-m'I?
ORIG 1000 start address @ta?&Qf)
START OUT MSG(TERM) output data at address MSG 0pNo`Bm
HLT halt execution I Tn;m
MSG ALF "MIXAL" 0Bu*g LY
ALF " HELL" kJeu40oN
ALF "O WOR" 6J;i,/ky
ALF "LD " h,hL?imD
END START end of the program 1(pjVz&
,cS0
3k{c$x}
Nuva ^^
j/
<..直接输出..> lEa W7j
Hello, world! acP
;(t
DvJB59:_}
<..或者..> !VNbj\Bp
O*4gV }:G
<. ?'f^X$aS
// 不带换行 1 mHk =J~
? "Hello, world!" pVz pN8!
tnL."^%A2I
// 或者 1g81S_T
.
gA"<MI'y
// 带换行 +{Gw9h"5g*
?? 'Hello, world!' N&N 82OG
.> <O
bH f`Q
M1gP
R
X{'wWWZC
OCaml &%}6q]e
let main () = X?kPi&ru
print_endline "Hello world!";; 1!f2*m
LK
%K0o
@?vLAsp\
Pascal xBt<Yt"
program Hello; `rq<jtf+
begin X{s/``n
writeln('Hello, world!'); (L:`ojiU
end. 'XEK&Yi1
#!Ze\fOC
?KCxrzf
Perl x57'Cg \
#!/usr/local/bin/perl -sx-7LKi
print "Hello, world!\n"; VlV)$z_
<%/:w/
tPzM7
n|
PHP bCt_yR
<?php w0$R`MOR+
print("Hello, world!"); W'd/dKUx
?> #B\B(y
j^rYFS
w:Q
F;X"3F.!
Pike *<?XTs<
#!/usr/local/bin/pike 0tSA|->(
int main() j]#wrm
{ 5(KG=EHj_
write("Hello, world!\n"); $Llvp bl
return 0; 7_1W:-A7W
} B'!PJj
G+fd.~aGE
(}6wAfGo
PL/I oq243\?Y
Test: procedure options(main); .?70=8{
declare My_String char(20) varying initialize('Hello, world!'); B0S8vU
put skip list(My_String); N]V/83_
end Test; >|5XaaDa
xdCs5ko
5UPPk$8`
Prolog (UXv,_"nU
goal \N4d_fPj
write("hello,world!"). `)LIVi"(D
/XjN%|
7<fL[2-
Python mQFa/7FX
#!/usr/local/bin/python :mzCeX8 *
print "Hello, world!" #fO*ROe
hzW{_Q.|?
p[_Yi0U
REXX .Dc28F~t
say "Hello, world!" !W0P`i<
!+5C{Hs2
4Fh&V{`W
Ruby 8g-P_[>
#!/usr/bin/ruby VPdwSW[eM
print "Hello, world!\n" hyM'x*
F
[r|Y-c]
*O!T!J
Scheme omNpE_
(display "Hello, world!") ~v^%ze
(newline) IU7$%6<Y
QCVsVG!sN
-*rHB&e
sed (需要至少一行输入) 4t,zHR6W
sed -ne '1s/.*/Hello, world!/p' P=&'wblm?
.MzOLv
mJSK; @w<O
Smalltalk "[#@;{@Gt
Transcript show: 'Hello, world!' Gv!BB=ir(
Czq1
kz
/A%om|+Gq
SNOBOL PbbXi
OUTPUT = "Hello, world!" aytq4Ts
END YCir Oge
<jpe u^7
A*G
)CG
SQL 5{8x*PSl
create table MESSAGE (TEXT char(15)); dDsjPM;2
insert into MESSAGE (TEXT) values ('Hello, world!'); |\i:LG1
select TEXT from MESSAGE; *?EO n -
drop table MESSAGE; Uzan7A
#> 7')G
V?U%C%C|e
Tcl <$RS*n
#!/usr/local/bin/tcl jl;kcGE
puts "Hello, world!" #H'sZv
CP c"
*i=?0M4S
TScript "bHtf_
? "Hello, world!" %GVEY
R88(dEK
"[%;B0J
Turing ?)Tz'9l
put "Hello, world!" \e`6=Q%
-&q