“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。 Hcl"T1N*
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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》。 q,,j',8kq/
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以下是用不同语言写成的Hello World程序的几个例子: dM|g`rr
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Ada B82,.?
with Ada.Text_Io; use Ada.Text_Io; 0(TvQ{
procedure Hello is Zps&[;R$-
begin G `Izf1B`I
Put_Line ("Hello, world!"); ?N#[<kd
end Hello; ^uBwj}6
.;%q/hP
i^S2%qz
汇编语言 y*KC*/'"
BHiOQ0Fs
x86 CPU,DOS,TASM {W'8T}q
MODEL SMALL 6e:P.HqjA
IDEAL |F~88j{VN
STACK 100H 9UmBm#"
/Su)|[/'
DATASEG zv9MHC
&
HW DB 'Hello, world!$' #J~Xv:LgD
=5_y<0`4
CODESEG |B|@GF?:
MOV AX, @data C
>kmIw'
MOV DS, AX #L1>dHhat
MOV DX, OFFSET HW "8_,tYAH
MOV AH, 09H g =x"cs/[
INT 21H E.#6;HHzN
MOV AX, 4C00H @{bb'q['@
INT 21H {tmKCG
END =f4<({9
x.G"D(
u
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x86 CPU,GNU/Linux,NASM ULTNhq
R*n
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). AJ4r/b}
;Enter this into "hello.asm" then type: i?W]*V~ply
;"nasm -f elf hello.asm" .S6ji~;r
;"ld hello.o -o hello" CjmV+%b4
;"./hello" 8qmknJC
(7 ijt
section .data ;data section declaration mLULd} g/o
msg db 'Hello World!',0AH n`QO(pZ6+
len equ $-msg ;string length NJ>,'s
x~Pvh+O
section .text ;code section declaration 6mAB(X^+
global _start ;entry point (start of execution) [lOf|^9
_start: mov edx,len ;string length |I/,F;'
mov ecx,msg ;string start ,N0uR@GN
mov ebx,1 ;file handle: stdout )8bFGX7|
mov eax,4 ;sys_write !3QRzkJX~
int 80h ;kernel system call 'FqEB]gu
km}MqBQl
mov ebx,0 ;return value fK);!Hh
mov eax,1 ;sys_exit qdO[d|d
int 80h ;kernel system call ,y%ziay
kI<WvgoL
[tOuNj:
x86 CPU,Windows,MASM32 kLq(!Gs
.386 \P5>{2i
.model flat,stdcall Y}K!`~n1S
option casemap:none }!=gP.Zu^
;Include 文件定义 {Wa~}1`Kl
include windows.inc psu OJ-
include user32.inc d<_NB]V&F
includelib user32.lib s`r-v/3l
include kernel32.inc S$\.4*_H\
includelib kernel32.lib ;raz6DRO
;数据段 `i9N)3
X
.data 7|K3WuLL
szCaption db 'A MessageBox!',0 7}A5u,.,ht
szText db 'Hello,world!',0 =g >.X9lr
;代码段 Pu-p7:99;'
.code ]L$4Py
start: Hw y5G;
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK JxnuGkE0[#
invoke ExitProcess,NULL l:q8Pg)
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> T
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end start CJv>/#$/F
8,_ -0_^$
y&y/cML?
AWK Rnzqw,q
BEGIN { print "Hello, world!" } B( 8mH
</|)"OD9
YsZ{1W
BASIC .#sz|0
传统版BASIC(例如GWBASIC): &;Ed*OJ
Oy:QkV9
10 PRINT "Hello, world!" TR~|c|B
20 END u0s'6=
m$,cH>E
或在提示符输入: WN$R[N
{s,^b|I2#U
?"Hello, world!":END #UBB
lE#
Xthtw *
现代版BASIC(例如Quick BASIC): (=`Z0)=
qw5&Y$((
Print "Hello, world!" W=UqX{-j)
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以下的语句在Quick BASIC中同样有效: phr2X*Z/)Y
ujiZM
? "Hello,world!" L+8=P<]
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;i.I&*t
BCPL l<W*/}3
GET "LIBHDR" *X~B-a |nJ
.\Ul!&y
LET START () BE ^p$1D
$( L{Q4=p,A
WRITES ("Hello, world!*N") /731.l
$) ``+c`F?5
cES;bwQ
<njIXa{
Befunge {d^Q7A:`
"!dlrow olleH">v d [)_sa
, qC\]"Z`m
^_@ n"mJEkHE
T~s&)wD
{a]pF.^kf
Brainfuck nDyvX1]
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< =E&2 4
+++++++++++++++.>.+++.------.--------.>+.>. {5U1`>
'BqrJfv
5.O-(eSa0&
C ri#,ec|J
#include <stdio.h> %I_&Ehu
GXarUj s
int main(void) Yr5iZ~V$
{ {EOn r1
printf("Hello, world!\n"); mr@_%U
return 0; m~##q}LZ
} v>rqOI
*4-r`k|@>/
Ok*VQKyDLH
C++ `@4 2jG}*
#include <iostream> :-$cdZ3E
4,j4E@?pG9
int main() tDEXm^B2Sv
{ 9cVn>Fb
std::cout << "Hello, world!" << std::endl; Km[]^;6
return 0; Y=5!QLV4
} ;:AG2zE!
/
c+,
N{ : [/
C++/CLI #:]vUQ
int main() iPA@<D%
{ -zPm{a
System::Console::WriteLine("Hello, world!"); Dm>T"4B`/
} Z"l`e0{
6].yRNy"
<+<)xwOQ ]
C# (C Sharp) lO551Y^
class HelloWorldApp T {hyt
{ ,@}W@GGP)
public static void Main() pZc9q8j3
{ GA'*58
System.Console.WriteLine("Hello, world!"); M7`UoTc+>d
} 1f+*Tmc5]Q
} X=fPGyhZ
E^oEG4X@
3Qqnw{*
COBOL -X`~;=m>U
IDENTIFICATION DIVISION. gcX5Q^`a=
PROGRAM-ID. HELLO-WORLD. TvQWdX=
p3V9ikyy
ENVIRONMENT DIVISION. A28ZSL
@uQ%o%Ru6
DATA DIVISION. r$b:1 C~
!JT<(I2
PROCEDURE DIVISION. gUksO!7^1
DISPLAY "Hello, world!". R g%R/p)C
STOP RUN. ~Y1"k]J
Hi9 G^Q
B$K7L'e+-
Common Lisp p5lR-G
(format t "Hello world!~%") ;e&hM\p
Q'FX:[@x-S
o@qN#Mg?>}
DOS批处理 F@>w&A~K
@echo off =_#ye}E
echo "Hello, world!" &@mvw=d
#gxRTx
)v*v
Eiffel Ln"+nKr
class HELLO_WORLD K?z*3^^X;
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creation B ]|5?QP-
make ;y:#S^|?-z
feature d/0/$Bz}P
make is X !&"&n
local NTv#{7q
io:BASIC_IO y}(_SU
do X;K8,A7`
!!io e1f^:C
io.put_string("%N Hello, world!") uKLOh<oio
end -- make V/QTYy1
end -- class HELLO_WORLD p[ks} mca@
rC=p;BC@dD
G:E+s(x
Erlang wZ
(uq?3S`
-module(hello). H;7O\
-export([hello_world/0]). S+` !%hJ
K9x*Sep
hello_world() -> io:fwrite("Hello, World!\n"). w\0Oz?N
*>}McvtTw
J
,Qy`Y
B
Forth \GjXsR*b5
." Hello, world!" CR PO=ZxG
Q1N,^71
a}^!TC>%1i
Fortran 4aIlzaA
WRITE(*,10) |R_xY=z?
10 FORMAT('Hello, World!') Vp- n(Z
STOP 6E*Zj1KX
END Q%gY.n{=
~2, wI<Nz
Og&0Z)%
HTML SdEb[
<HTML> L<[,7V
<HEAD> C%x(`S^/
<TITLE> Hello World! </TITLE> a=}">=]7
</HEAD> x| ~D(zo
<BODY> `Cb<KAaCH
<p>Hello World!</p> K8 Kz
</BODY> 2i4Dal
</HTML> K'{ wncumQ
MJ*oeI!.=
n@yd{Rc
HQ9+ 9M-NItFos
H Y(Z(dV!Po
S7\|/h:4
nU">> 1!U
INTERCAL d-A%ZAkE]
PLEASE DO ,1 <- #13 AW{/k'%xw
DO ,1 SUB #1 <- #238 1*x5/b
DO ,1 SUB #2 <- #112 @BB,i /
DO ,1 SUB #3 <- #112 CwCo"%E8}
DO ,1 SUB #4 <- #0 Bv
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DO ,1 SUB #5 <- #64
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DO ,1 SUB #6 <- #238 *y[~kWI
DO ,1 SUB #7 <- #26 \8C*O{w
DO ,1 SUB #8 <- #248 egIS rmL+X
DO ,1 SUB #9 <- #168 34O+#0<y~
DO ,1 SUB #10 <- #24 f|[5&,2<
DO ,1 SUB #11 <- #16 JydQA_
DO ,1 SUB #12 <- #158 .{Eg(1At
DO ,1 SUB #13 <- #52 }E)8soQR
PLEASE READ OUT ,1 x""Mxn]gD
PLEASE GIVE UP .J7-4
ND99g
`6l24_eKf
Java ^5zS2nm
public class Hello TF([yZO'
{ :67d>wb
public static void main(String[] args) :,J86#S)
{ |L~gNC
System.out.println("Hello, world!"); w~FO:/
} 9N3oVHc?
} .Q6{$Y%l
'!|E+P-
ht[TMdV
JSP ,_X,V!
<% \gPNHL*
out.print("Hello, world!"); OM"T)4z
%> b}q(YgH<
V.OoZGE>]
Nr*ibtz|D
MIXAL y&O_Jyg<
TERM EQU 19 the MIX console device number dT0z^SG
ORIG 1000 start address Zqe[2()
START OUT MSG(TERM) output data at address MSG A_4\$NZ^
HLT halt execution *b 7
^s,?
MSG ALF "MIXAL" oVj A$|
ALF " HELL" 1>O0Iu
ALF "O WOR" rj`.hXO
ALF "LD " uJAB)ti2I
END START end of the program v:;C|uE|
9#=IrlV4
5x L,~"
Nuva x:D<Mu#
<..直接输出..> `&&6-/
Hello, world! neMe<jr
.q& ]wu
<..或者..> ,r)d#8
I^C
]6D{
<. 7E84@V[\
// 不带换行 ywa .cq
? "Hello, world!" t+Tg@~K2[>
[7t0[U~3?
// 或者 3By>t!~Q
l#(g&x6J
// 带换行 tGy%n[ \
?? 'Hello, world!' w `9GygS
.> ;U:o'9^9T
Q,LWZw~"
1oVD Oo
OCaml cF>;f(X
let main () = XS~w_J#q
print_endline "Hello world!";; <k8rSxn{
0eu$oel-
V:$1o
Pascal -wHGi
program Hello; t"@|;uPAu
begin uZ{xt6 f
writeln('Hello, world!'); @RG3*3(
end. 9~ .BH;ku
&I">{J<
oGjYCVc
Perl Y&Nv>o_}5
#!/usr/local/bin/perl Z-r0
D
print "Hello, world!\n"; gZuR4Ti
N
pIlQaMo4
Fu=VY{U4
PHP i3\oy`GJ
<?php E52:c]<'m
print("Hello, world!"); 6/[h24d
?> mgl'
d
'k) P(H
6Yi,%#
Pike ZkG##Jp\>
#!/usr/local/bin/pike 4w
int main() SodW5v a
{ ToCfLJ?{
write("Hello, world!\n"); YH6K-}
return 0; m3ZOq
B-
} Z|7I }i
f#JF5>o
!{- 3:N7
PL/I x-P_}}K 79
Test: procedure options(main); ~1z8G>R
declare My_String char(20) varying initialize('Hello, world!'); NxRiEe#m
put skip list(My_String); ntUVhIE0
end Test; !Kn+*' #
cF6@.)
(>% Vj
Prolog )FiU1E
goal .Sth
write("hello,world!"). %JU23c*
a*@Z^5f
|[t=.dK%
Python 8&AorYw[
#!/usr/local/bin/python 2+rao2
print "Hello, world!" "alO"x8t
JQv
ZTwSI
Xrs~ove1V
REXX #nL0Hx7]E
say "Hello, world!" gnK!"!nL
IBHG1<3
Tl{r D(D
Ruby )4O`%9=M&
#!/usr/bin/ruby MjosA R
print "Hello, world!\n" :)S4MoG
z^a?t<+
r]vBr^kq
Scheme Z~:lfCK`
(display "Hello, world!") &l)v'
(newline) O[J+dWyp
Kct +QO(
d:ajD
sed (需要至少一行输入) uy28=BE
sed -ne '1s/.*/Hello, world!/p' 8i~'~/x
.}op mI
0L-g'^nn
Smalltalk k3eN;3#&
Transcript show: 'Hello, world!' zm.sX~j
U*l>8
Xm+3`$<
SNOBOL `
R-np_
OUTPUT = "Hello, world!" Rla*hc~
END 745PCC'FK
.=<pU k 3G
) FsSXnZL
SQL $G.|5sEk
create table MESSAGE (TEXT char(15)); U9%nku4
insert into MESSAGE (TEXT) values ('Hello, world!'); /R?uxhV
select TEXT from MESSAGE; :H k4i%hGk
drop table MESSAGE; 2Nzcej
1e%Xyqb
D*b|(Oi
Tcl ^W*)3;5
#!/usr/local/bin/tcl 5.;$9~d
puts "Hello, world!" ]zAg6*-/B
p#NZ\qJ
ZSf+5{2m
TScript f4^_FK&
? "Hello, world!" `{;&Qcg6m
Y)5}bmL
uvd>
Turing tV%\Jk),
put "Hello, world!" k}7)pJNj
'v5gg2
mSp7H!
UNIX-style shell ?NeB_<dLa`
程序中的/bin/sh可改为您使用的shell iIRigW
4H'&5
#!/bin/sh %^A++Z$`
echo 'Hello, world!' qa#F}aGd
^DJU99
T!$HVHh&,}
GUI LZ$!=vg4
Qk?Jy<Ra
Delphi ,X):2_m
program HelloWorld; < duM8
uses *Ux"3IXO
Dialogs; A>S2BL#=
begin l0)6[yXK
ShowMessage('Hello, World!'); ZmF32Ir
end. /d;l:
=-Tetp
.v!e=i}.
Nuva z81!F'x;
<. 3"RZiOyv
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) G(e?]{(
.> (.)s =
1EB`6_>y
)`0 j\
Visual Basic kv2:rmv
MsgBox "Hello, world!" H%V[%
T4=
'或者 3iwZUqyq
Print "Hello, world!" 7?@v}%w
\`&fr+x
A
2 )%+
Visual FoxPro ~d]7 Cl
? "Hello, world!" jeNEC&J
Er`PYE
J
gE#,QOy
X11 =0|evC
用一个程序
c7 -j
|&.)_+w
xmessage 'Hello, world!' 4T-AWk
B(U`Zd
用C++和gtkmm 2 /vKDlCH*
sIe(;%[`
#include <iostream> \Ld7fP
#include <gtkmm/main.h> fx5vaM!
#include <gtkmm/button.h> +/'jX?7x%
#include <gtkmm/window.h> +g&W