“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。 _BwKY#09Zp
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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》。 wA",SBGX
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以下是用不同语言写成的Hello World程序的几个例子: uk6g s)qxC
Ada ~me\
with Ada.Text_Io; use Ada.Text_Io; ~oFh>9u
procedure Hello is *;X-\6
begin 0BDoBR
Put_Line ("Hello, world!"); 1M/$<
kQ-N
end Hello; Gc^t%Ue-H)
x~Cz?ljbn
EW9b*r7./
汇编语言 o}W;Co
^Po,(iIn
x86 CPU,DOS,TASM idz9YpW
MODEL SMALL e&ts\0
IDEAL %-r?=L
STACK 100H D&f!( n
7@@<5&mN
DATASEG x97H(*
HW DB 'Hello, world!$' dFMAh&:>
%GVN4y&
CODESEG GVZTDrC
MOV AX, @data e3pnk
=u
MOV DS, AX L5&K}F]r^
MOV DX, OFFSET HW l{QC}{Ejc2
MOV AH, 09H w_!%'9m>
INT 21H T,Fm"U6[(
MOV AX, 4C00H fOLnK
y#
INT 21H yeNvQG
END [brkx3h
G1TANy
3wo'jOb
x86 CPU,GNU/Linux,NASM jVs(x
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). "G@E6{/
;Enter this into "hello.asm" then type: s_S$7N`ocS
;"nasm -f elf hello.asm" $-e=tWkgv
;"ld hello.o -o hello" D>S8$]^Dm
;"./hello" e]Puv)S>{8
z:?:
section .data ;data section declaration r\B"?oqC
msg db 'Hello World!',0AH mfz"M)1p1
len equ $-msg ;string length sX
Z4U0#
Gg}t-_M
section .text ;code section declaration t)KPp|&
global _start ;entry point (start of execution) 5Vm Eyb
_start: mov edx,len ;string length \UhGGg%
mov ecx,msg ;string start PH[4y:^DN
mov ebx,1 ;file handle: stdout $8=(I2&TW
mov eax,4 ;sys_write =8@RKG`>;
int 80h ;kernel system call >6w@{p2B
m+p4Mc%u
mov ebx,0 ;return value YT][\x
mov eax,1 ;sys_exit u!M&;QL
int 80h ;kernel system call |K6nOX!i
F~%|3a$Y
A_aO}oBX
x86 CPU,Windows,MASM32 :bI,rEW#_
.386 G%Y*q(VrEu
.model flat,stdcall t Z+0}d
option casemap:none 75<el.'H
;Include 文件定义 X"wFQa
include windows.inc $4sAnu]
include user32.inc DhHtz.6
includelib user32.lib N=.}h\{0
include kernel32.inc y)IGTW o
includelib kernel32.lib 3Nc'3NPQ'
;数据段 haN"/C^
.data 3Sk5I%
szCaption db 'A MessageBox!',0 <. ezw4ju
szText db 'Hello,world!',0 wE)]
ah:
;代码段 HhzkMJR8
.code XadG\_?t`
start: Sb^a dd0dT
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK YcPKM@xo
invoke ExitProcess,NULL ]Qh[%GD
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> y/z9Ce*>
end start 0kkRK*fp}x
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7k.d|<mRv
AWK `^?}s-H+
BEGIN { print "Hello, world!" } Og_2k
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u}Lc|_ea`
BASIC #($k 3OA
传统版BASIC(例如GWBASIC): @?'t@P:4
&19lk
10 PRINT "Hello, world!" 1'(_>S5CG
20 END [Od>NO,n+]
=ZxW8DK
或在提示符输入: Pn~pej5'K
xgZV0!%
?"Hello, world!":END .CIbpV?T
aS c#&{
现代版BASIC(例如Quick BASIC): n$XMsl.>
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Print "Hello, world!" 9:bh3@r/
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以下的语句在Quick BASIC中同样有效: } S'I
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p.6$w:eV
? "Hello,world!" 0IoXDx
)^*9oqQ
'w>uFg1.
BCPL z^gDbXS
GET "LIBHDR" S3%.-)ib
x!Z:K5%O
LET START () BE U08<V:~
$( @d8&3@{R^
WRITES ("Hello, world!*N") |G`4"``]k
$) eONeWY9
w>H%[\Qs
T! &[
Befunge ~frPV8^DP
"!dlrow olleH">v Im0+`9Jw
, J4Q)`Y\~
^_@ C,sD?PcSi+
1C5kS[!
*:fw6mnJ#
Brainfuck eR#gG^o8
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Z~-T0Ab-
+++++++++++++++.>.+++.------.--------.>+.>. Lz#$_Am'H
zm;*:]S
}`+^|1
C ne!j%9Ar
#include <stdio.h> 9H
!B)
Skr\a\
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int main(void) ~P"!DaAf
{ !}Woo$#ND
printf("Hello, world!\n"); n]6}yJJo
return 0; LX(iuf+l
} ulz\x2[Pf
k#IS,NKE
T}b(
M*E
C++ x3Dg%=R
#include <iostream> 61s2bt#
#(26t _a
int main() 4}r\E,`*X
{ gN!E*@7
std::cout << "Hello, world!" << std::endl; xsY>{/C
return 0; .JD4gF2N
} =yhn8t7@]
"t%1@b*u
8 /RfNGY
C++/CLI %Zv(gI`A
int main() fn?6%q,!ls
{ q.,p6D
System::Console::WriteLine("Hello, world!"); +qSr=Y:+
} YjIED,eRv
p0y0T|H^
sJHy=z0m
C# (C Sharp) bHWvKv+
class HelloWorldApp K#6`LL m
{
u_[4n
public static void Main() ^*?B)D =,
{ hk lO:,`
System.Console.WriteLine("Hello, world!"); 3<UDVt@0
} r3BDq
} _'v }=:X
8H%I|fm
H>X>5_{}
COBOL HA3SQ
IDENTIFICATION DIVISION. utm+\/
PROGRAM-ID. HELLO-WORLD. WT ~dA95
4f*Ua`E_
ENVIRONMENT DIVISION. )R
a/
1A/c/iC
DATA DIVISION. SFk11
a m k42
PROCEDURE DIVISION. 8a$jO+UvN
DISPLAY "Hello, world!". <
jocfTBk
STOP RUN. h7W%}6Cqkw
:86luLFm
fFTvf0j
Common Lisp >s 8:1l
(format t "Hello world!~%") 3EW f|6RI
Bg+]_:<U
d`],l\oC
DOS批处理 J%O4IcE
@echo off aa YQ<
echo "Hello, world!" 7^t(RNq
A@
LG@c)H74
Eiffel lTOM/^L
class HELLO_WORLD MCrO]N($b
g7}z
&S;_
creation J&U0y
make [TfV2j* e
feature 6_&6'Vq
make is I9G*iu=U
local /HJ(Wt
q
io:BASIC_IO R#Nd|f<
do !wb~A0m
!!io [?f.0q
io.put_string("%N Hello, world!") -.Pu5et4
end -- make N5an9r&z(1
end -- class HELLO_WORLD ]E8<;t)#
J)yy}[Fx
I&NpN~AU
Erlang .gkPG'm[
-module(hello). \gzwsT2&
-export([hello_world/0]). _Il9s#NA%
ch8w'
hello_world() -> io:fwrite("Hello, World!\n"). UV8r&O
@G$<6CG\
QKaj4?p$|S
Forth ?kFCYZK|"
." Hello, world!" CR v0MOX>`s
[dF=1E>W_J
q{+poVX
Fortran |tJ%:`DGw
WRITE(*,10) 1o8"==n%
10 FORMAT('Hello, World!') g*c\'~f;
STOP sv6U%qV
END pr,1Wp0l
|mE+f]7$
wukos5
HTML )~mc1U`b
<HTML> w~KBk)!*
<HEAD> .&} 4
<TITLE> Hello World! </TITLE> dQ|Ht[s=
</HEAD> t7+Ic
<BODY> x)wt.T?eL
<p>Hello World!</p> yGG\[I;7
</BODY> ,p`bWm
</HTML> c%Cae3;
"XsY~
N3c)ce7[
HQ9+ ;AB ,:*
H KdMA58)
q[+:t
k8wi-z[dV
INTERCAL +Y]*>afG
PLEASE DO ,1 <- #13 S,9WMti4x
DO ,1 SUB #1 <- #238 PZg]zz=V4
DO ,1 SUB #2 <- #112 -&D6w9w
DO ,1 SUB #3 <- #112 PyxN _agf
DO ,1 SUB #4 <- #0 RYJc>
DO ,1 SUB #5 <- #64 AbI*/|sY
DO ,1 SUB #6 <- #238 rkc%S5we
DO ,1 SUB #7 <- #26 L\b_,'I
DO ,1 SUB #8 <- #248 I5OH=,y`
DO ,1 SUB #9 <- #168 "_@+/Iy.
DO ,1 SUB #10 <- #24 Wy>\KrA1
DO ,1 SUB #11 <- #16 I"<.
h'
DO ,1 SUB #12 <- #158 |Pl{Oo+
DO ,1 SUB #13 <- #52 !,!tNs1 K
PLEASE READ OUT ,1 ]%8;c
PLEASE GIVE UP '<D}5u72
$<e .]`R
+9rbQ?'
Java U9sub6w 6
public class Hello =V]i?31[
{ uOqDJM'RM
public static void main(String[] args) k#NMD4(%O
{ <G?85*Nv_
System.out.println("Hello, world!"); 'wV26Dm
} PH!B /D5G
} Tm.w+@
,k' 6<Hw
@_ZWP
JSP v$/i5kcWx
<% .T wF]v
out.print("Hello, world!"); 8&hn$~ate
%> <[l}^`IC^4
Z*"t]L
p&doQh
MIXAL sc>)X{eb
TERM EQU 19 the MIX console device number luog_;{h+
ORIG 1000 start address 1+c(G?Ava
START OUT MSG(TERM) output data at address MSG q[A3$y(
HLT halt execution 5{aQ4H>~tx
MSG ALF "MIXAL" D|3QLG
ALF " HELL" 8Kkr1}!wd
ALF "O WOR" 3edK$B51;
ALF "LD " BTtYlpN6
END START end of the program G)|HFcE
4<Y[L'UaA@
)X$n'E
Nuva }kefrT
<..直接输出..> "z4E|s
Hello, world! i.,B
0s]Z
481u1
<..或者..> >m{-&1Tx
~36XJ
<. A1T;9`E
// 不带换行 *9^k^h(r&4
? "Hello, world!" 4HmRsOl
824%]i3
// 或者 ~,1X>N"
0_izTke
// 带换行 $R36`wk
?? 'Hello, world!' Q-CVq_\3I
.> _fw'c*j
hV>Ey^Ty
'o9V0#$!
OCaml f89<o#bm7h
let main () = K*RRbtb
print_endline "Hello world!";; ||NCVGJG
lph_cY3p
w`:KexD+
Pascal l]cQ7g5
program Hello; 'iK*#b8l
begin "E#%x{d
writeln('Hello, world!'); N`fY%"5U>
end. 0Z(b/fdS
2N#L'v@g=+
oaE3Aa
Perl ]B[Qdn
#!/usr/local/bin/perl ]ORat.*0[T
print "Hello, world!\n"; :{<HiJdp
'(*D3ysU
RzRLrfV
PHP ](pD<FfS]'
<?php Kz;VAH
print("Hello, world!"); PX'%)5:q;i
?> Stpho4+/y
k5M(Ve
fRmc_tx
Pike .=S{
#!/usr/local/bin/pike 4mg&H0 !
int main() X)S4rW%
{ 2(|V1]6D?
write("Hello, world!\n"); 0Jrk(k!
return 0; c$;enAf@
} m? hX=
~XRr }z_Lq
A`Nb"N$H13
PL/I z=sqO'~
Test: procedure options(main); *V}}3Degh
declare My_String char(20) varying initialize('Hello, world!'); xPv&(XZR
put skip list(My_String); dewu@
end Test; b04~z&Xv
XDF",N)
M
5h U.3.L
Prolog 9S^-qQH3}
goal ;I0/zeM%
write("hello,world!"). }e$);A|
$) $sApB
(;h\)B!o
Python
xMU)
#!/usr/local/bin/python 6SwHl_2%
print "Hello, world!" &nYmVwi?"Q
|(N4x(xl
2#^[`sFPO
REXX RK0IkRXQd
say "Hello, world!" ~zx-'sc?
u/AN|
y
O-k(5Zb
Ruby Y!H"LI
#!/usr/bin/ruby 0M"E6z)9
print "Hello, world!\n" 03xQ%"TU<
8c#*T%Vf
|@+
x9|'W
Scheme C`ok{SNtUy
(display "Hello, world!")
7@`(DU`z
(newline) lk}x;4]Z
b4Z#]o
vgV0a{u"
sed (需要至少一行输入) +MEWAW[}^
sed -ne '1s/.*/Hello, world!/p' E5rNC/Ul$$
C1_NGOvT
CA3.fu3(p
Smalltalk .R1)i-^
Transcript show: 'Hello, world!' k~H-:@
Gr_I/+<
#f[yp=uI:
SNOBOL </eh^<_~
OUTPUT = "Hello, world!" 2c}kiqi{
END A;kB"Tx
{W-PYHZ;
OAv/P|n=
SQL g\ke,r6
create table MESSAGE (TEXT char(15)); >0> M@s
insert into MESSAGE (TEXT) values ('Hello, world!'); `jJb) z3D
select TEXT from MESSAGE; Y$N|p{Z
drop table MESSAGE; (T@ov~@
GovGh? X#x
iVFnt!
Tcl 2 `#|;x^<
#!/usr/local/bin/tcl Y}0 - &
puts "Hello, world!" hM;E UWv
NY_Oo!)3
@wpm;]
TScript w ^r*qi"
? "Hello, world!" <-$4?}
LnBkd:>}
,7eN m>$
Turing Bq'hk<ns[
put "Hello, world!" IqmavnM#
p.zU9rID
%bddR;c
UNIX-style shell &4]%&mX)-
程序中的/bin/sh可改为您使用的shell *G=n${'
~ejHA~QC
#!/bin/sh _I2AJn`#
echo 'Hello, world!' Z";o{@p
n] &fod
8,%y`tUn>u
GUI ?Hq`*I?b9
}UX >O
Delphi K~[/n<ks
program HelloWorld; ym-212wl
uses w2 CgEJ%
Dialogs; <;=X7l+
begin z]tvy).
ShowMessage('Hello, World!'); zVp|%&
end. rGx1>xd(k
<>p\9rVp*^
lQoa[#q
Nuva P[^!Uq[0n7
<. {<&x9<f9
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Dj?95Z,r
.> lxV>
rmD
Pf]L`haGN
w!%Bc]
Visual Basic ,OG sx
MsgBox "Hello, world!" I/fERnHM/+
'或者 AM,@BnEcuT
Print "Hello, world!" GT`:3L
!k Hpw2
)R,*>-OPJL
Visual FoxPro _^Rf*G !
? "Hello, world!" $7,n8ddRy
5q@o,d
~G,n>
X11 aZ- )w
用一个程序 v"\Q/5p
=f?| f
xmessage 'Hello, world!' yG{'hx6H
%5$yz| :
用C++和gtkmm 2 iwrS>Sm
eCdMDSFO3
#include <iostream> -g_PJ.Hk
#include <gtkmm/main.h> m8#+w0p)
#include <gtkmm/button.h> `G6Nk@9.
#include <gtkmm/window.h> KGFmC[
using namespace std; %E,s*=j
/mF%uI>:
class HelloWorld : public Gtk::Window (?;Fnq
{ g/J
^YT!
public: ^0c:ro
HelloWorld(); l '<gkwX
virtual ~HelloWorld();
cT-XF
protected: =X]$J@j
Gtk::Button m_button; e%u1O-*
virtual void on_button_clicked(); >ouHR*
}; I~gU3(
tFO86 !ln
HelloWorld::HelloWorld() : m_button("Hello, world!") c"H*9u:
{ rK9X68)
set_border_width(10); *C}vy`X
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Xq` '^)
add(m_button); XSkx<"U*
m_button.show(); -[^aWNqyJ
} mtOCk 5E
@OV\raUO&V
HelloWorld::~HelloWorld() {} cL?FloPc*
DfXXN
void HelloWorld::on_button_clicked() ~L<q9B( @
{ [f!sBJ!
cout << "Hello, world!" << endl; #"jEc*&=
} ]*'V#;s
aq@/sMn
int main (int argc, char *argv[]) k}(C.`.
{ TGl It<&
Gtk::Main kit(argc, argv); f,wB.MN
HelloWorld helloworld; H<92tP4M
Gtk::Main::run(helloworld); y 4j0nF
} 07:CcT
/J")S?. [u
<DxUqCE
Java Y&6vTU
import java.awt.*; eZ'J,;
import java.awt.event.*; no~hYyW2
X~(%Y#6
public class HelloFrame extends Frame Q&
j: ai*
{ F@~zVu3'
HelloFrame(String title) ?j6?KR@#
{ ,HO~NqmB4
super(title); aY&