“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。 qtMD CXZ^n
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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》。 i{Ds&{
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以下是用不同语言写成的Hello World程序的几个例子: , jU5|2
Ada $!B}$I;cd
with Ada.Text_Io; use Ada.Text_Io; ;j9\b9m
procedure Hello is `XKVr
begin x#*QfE/E(@
Put_Line ("Hello, world!"); 3I $>uR
end Hello; ^x m$EY*Y,
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t~hTp K*
汇编语言 G^;>8r
5T?-zFMM
x86 CPU,DOS,TASM Kr-G{b_Pp
MODEL SMALL Pw[g
IDEAL !)pdamdA
STACK 100H _>yoX
Uz
dc
DATASEG aG%,cQ 1
HW DB 'Hello, world!$' f-SuM% S_
JSr$-C
fH
CODESEG Qdf=XG5
MOV AX, @data mJ}opy!{;
MOV DS, AX =1.9/hW
MOV DX, OFFSET HW ._PzYE|m2
MOV AH, 09H ~}"]&%Q{J
INT 21H ?LK 2g
MOV AX, 4C00H !EIjN
INT 21H 1P(&J
END CAD@XZSh
SF[FmN!^^
p B;3bc
x86 CPU,GNU/Linux,NASM j)C:$
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). XYrJ/!*.
;Enter this into "hello.asm" then type: )"+2Z^1-
;"nasm -f elf hello.asm" 3W_PE+:Kr
;"ld hello.o -o hello" 2RM+W2!!
;"./hello" j+-P :xvP
,Lr<)p
section .data ;data section declaration .6f%?oo
msg db 'Hello World!',0AH Sa1l=^
len equ $-msg ;string length iyta;dw9
>>{FzR
section .text ;code section declaration DA&?e~L&H
global _start ;entry point (start of execution) Np+&t}
_start: mov edx,len ;string length hrGH}CU"
mov ecx,msg ;string start @]aOyb@
mov ebx,1 ;file handle: stdout "vZ!vt#'Y
mov eax,4 ;sys_write Pr ]Ka
int 80h ;kernel system call TuDE@ gq(
E&$yuW^z
mov ebx,0 ;return value Yz$3;
mov eax,1 ;sys_exit $%R$G`.KM
int 80h ;kernel system call jPZaD>!
67SV~L#%O
`;l .MZL!
x86 CPU,Windows,MASM32 .iX# A<E}
.386 ?>"Yr,b?
.model flat,stdcall #~O b)q|
option casemap:none 0tg8~H3yy
;Include 文件定义 *3/T;x.
include windows.inc ]n."<qxeT
include user32.inc ::FS/Y]Fg
includelib user32.lib mtz#}qD66
include kernel32.inc PjA6Ji;Hu
includelib kernel32.lib *^%Q0mU[
;数据段 I/gjenUK
.data
-!W<DJ*
szCaption db 'A MessageBox!',0 b` Hz$8
szText db 'Hello,world!',0 O3DmNq$dz
;代码段 a2Pf/D]n
.code \^7C0R-hX
start: OyV<u@[i
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK L@`ouQ"sa
invoke ExitProcess,NULL ~w8JH2O
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> D^%^xq)E
end start 'R`tLN
z4M9M7)"
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AWK p~HW5\4
BEGIN { print "Hello, world!" } evkH05+;W
Urr#N
X3'H
`/
BASIC l7# yZ*<v
传统版BASIC(例如GWBASIC): =0uAE7q(9
!$N<ds.
10 PRINT "Hello, world!" EnOU?D
20 END ib{-A&
AL#4_]m'
或在提示符输入: bwiPS1+);
EBz}|GY;
?"Hello, world!":END iY"l}.7)
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现代版BASIC(例如Quick BASIC): ]BR,M4
`;%]'F0`
Print "Hello, world!" sVG(N.y
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以下的语句在Quick BASIC中同样有效: mU}F!J#6
4jD2FFG-
G
? "Hello,world!" F1L:,.e`
a:QDBS2Llv
Hx,0zS%>
BCPL }!IL]0q
GET "LIBHDR" ]Oq[gBL"A
.9Y)AtJTS
LET START () BE y ]?V~%
$( 5j~$Mj`
WRITES ("Hello, world!*N") NaX
$) ?QE,;QtpK
|2{wG4
@E:,lA
Befunge ?-^~f
"!dlrow olleH">v OS8q( 2z?s
, ,#pXpAz/
^_@ 0RoU}r@z4
^Q+g({
{e|[%reSkg
Brainfuck Z+@2"%W
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< E Cyyl
+++++++++++++++.>.+++.------.--------.>+.>. \hCH>*x<
{%_L=2n6
"etPT@gF
C M)SEn/T-
#include <stdio.h> 8#vc(04(
:9k Ty:
int main(void) fW?o@vlO
{ LD!Q8"
printf("Hello, world!\n"); GvBHd%Ot
return 0; 6?w0
} ;Iq/l%vX
l+V>]?j
K4kMM*D
C++ I_RsYw
#include <iostream> qgfi\/$6
o"*AtGR+"
int main() YpqrZWvh
{ i>(e}<i
std::cout << "Hello, world!" << std::endl; wiiCd
return 0; ti#7(^j
} 8YbE`32
AvW:<}a,
c"[cNZo
C++/CLI :Y [LN
int main() z*-2.}&U<
{ A{A\RSZ0
System::Console::WriteLine("Hello, world!"); <_7*67{
} P'_H/r/#
rW=Z>1
AJ=qn a
C# (C Sharp) ?"g!
class HelloWorldApp +llR204
{ !jTcsN%
public static void Main() S_Wrw z
{ 8SGo9[U2
System.Console.WriteLine("Hello, world!"); @H=:)*;
} x@[rms
} DP|D\+YyYA
xoN3
o,)?!{k}
COBOL <*qnY7c&N;
IDENTIFICATION DIVISION. ]?(-[
PROGRAM-ID. HELLO-WORLD. B8}Nvz
/
ajEjZ6
ENVIRONMENT DIVISION. @<elq'2
[C'JH//q*t
DATA DIVISION. ?U2<
9?SZNL['V
PROCEDURE DIVISION. a*&B`77`|
DISPLAY "Hello, world!". JT!9\i
STOP RUN. #~
)IJ
V{!J-nO
bJX)$G
Common Lisp J|qZ+A[z
(format t "Hello world!~%") ax<?GjpM
hbY5l}\5
N'GeHByIT
DOS批处理 |EJD3&
@echo off :s7m4!EF
echo "Hello, world!" \hx1o\
c_4[e5z
^y<<>Y'I
Eiffel 0"pAN[=K@
class HELLO_WORLD !]=d-RGNe
sG92XJ
creation md"!33 @
make c"B{/;A
feature G6$kv2(k`@
make is UdpF@Q
local <4HDZ{"M
io:BASIC_IO zo4qG+>o
do Y!nJg1
!!io FG.em
io.put_string("%N Hello, world!") F9,DrB,B{
end -- make 2h5nMI]'
end -- class HELLO_WORLD +lHjC$
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;)D];u|_
Erlang ~T1XLu
-module(hello). M`,)w i
-export([hello_world/0]). OCBgR4I
"eB$k40-
hello_world() -> io:fwrite("Hello, World!\n"). uM_wjP
hhCrUn"
EK6:~
Forth Bu#VMkchJ
." Hello, world!" CR 6\g cFfo
7$CBx/X50)
HTX?,C_
Fortran 5kCUaPu
WRITE(*,10) v|dBSX9k0
10 FORMAT('Hello, World!') wea-zN
STOP b4[bL2J$h1
END lh7jux
Nn!+,;ut
--$
4Q(#
HTML old(i:2
<HTML> _V7s#_p
<HEAD> x!5'`A!W%
<TITLE> Hello World! </TITLE> Vl&?U
</HEAD> TJK[ev};S
<BODY> *Q?tl\E
<p>Hello World!</p> M
l Jo`d
</BODY> _`&m\Qe>
</HTML> 1v.c 6~
1Q<^8N)pf
)u[emv$
HQ9+ A kC1z73<
H L^@'q6*}
ywGd> @
J}v}~Cv
INTERCAL }dgfqq
PLEASE DO ,1 <- #13 4T|b
Cs?e
DO ,1 SUB #1 <- #238 Oo5w?+t
DO ,1 SUB #2 <- #112 `6~Aoe
DO ,1 SUB #3 <- #112 "s0)rqf<
DO ,1 SUB #4 <- #0 a_f~N1kq
DO ,1 SUB #5 <- #64 cW@Zd5&0S
DO ,1 SUB #6 <- #238 E8$20Ue
DO ,1 SUB #7 <- #26 /Z'L^L%R
DO ,1 SUB #8 <- #248 K|zZS%?$
DO ,1 SUB #9 <- #168 9K{%vK
DO ,1 SUB #10 <- #24 47+&L
DO ,1 SUB #11 <- #16 ,(qRc(Ho
DO ,1 SUB #12 <- #158 IzikDc10
DO ,1 SUB #13 <- #52 )dbB=OZ
PLEASE READ OUT ,1 a{^m-fSaR"
PLEASE GIVE UP
mF*2#]%dx
0D\#Pq
v
[ 9 {*94M
Java I,>-t GK
public class Hello e:fy#,HEj{
{ 8xMEe:}V
public static void main(String[] args) SUCMb8
{ n.!#P|
System.out.println("Hello, world!"); RYQ<Zr$!
} #@YPic"n7`
} b=yx7v"r
]O+Ma}dxz:
uki#/GzaO
JSP _=_Px@<Q
<% ,k )w6)
out.print("Hello, world!"); U}yW<#$+
%> =RA /
b6nsg|
cv998*|X:
MIXAL Ktb\ b w
TERM EQU 19 the MIX console device number >`Y.+4mE
ORIG 1000 start address 5D\f8L
START OUT MSG(TERM) output data at address MSG ?pr9f5
HLT halt execution IUE~_7
MSG ALF "MIXAL" K1mPr^3rC
ALF " HELL" *"?l ]d
ALF "O WOR" K28+]qy[
ALF "LD " K2M~-S3
END START end of the program qLn/2
+T|JK7
U`R5'Tf;
Nuva ZZ2vvtlyG
<..直接输出..> $?Yry.2
Hello, world! /oR0+sH]
Dv| #u|iw
<..或者..> 2|3)S`WZl
RQ vft
<. ;&<{ey
// 不带换行 "?]{%-u
? "Hello, world!" iHeN9 cl
LLk(l#K*
// 或者 d4u})
lD)%s!
// 带换行 #pP[xE"Y
?? 'Hello, world!' R)_%i<nq\
.> *w^C"^*
PmkR3<=leg
\Jx04[=
OCaml )WRLBFi3
let main () = "'c
A2~
print_endline "Hello world!";; <;vbsksZeH
f,h J~
h].<t&
Pascal $Z.7zH
program Hello; @Z*W
begin Dd'm U
writeln('Hello, world!'); pWy=W&0~qf
end. YLqGRE`W
/(u}KMR!f
"@%7 -nu
Perl -}nxJH )
#!/usr/local/bin/perl VCY\be
print "Hello, world!\n"; 13 =A
[$qyF|/K`n
)2Wi`ZT
PHP 7|{}\w(I
<?php 1n=lqn/
print("Hello, world!"); &~8oQC-eF
?> (}{G`N>.{
uD\?(LM
<v)1<*I
Pike sF|5XjQ
#!/usr/local/bin/pike DgUT5t1
int main() ;XF:\<+
{ cJ{ Nh;"
write("Hello, world!\n"); I;e=0!9U
return 0; &ib5*4!
} ,5i` -OI
W#^2#sjO
0t Fkd
PL/I ^A!Qc=#z}
Test: procedure options(main); ;T"zV{;7BR
declare My_String char(20) varying initialize('Hello, world!'); HBy[FYa4
put skip list(My_String); -&NN51-d\j
end Test; 9KDEM gCW
wP6Fl L
QN
#U)wn:
Prolog "Ue.@>
goal K~AR*1??[
write("hello,world!"). 5*+!+V^?X
(zgW%{V@
0xxg|;h.,g
Python O[I\A[*
#!/usr/local/bin/python
@OV|]u
print "Hello, world!" ~<O7$~
:yRo3c
KV]X@7`@
REXX `7[EKOJ3g
say "Hello, world!" V}J)\VZ2#
w1hPc!I
Z3#P,y9@
Ruby U}6B*Xx'
#!/usr/bin/ruby qs1 ?IYD
print "Hello, world!\n" 4A8;tU$&
?%O(mC]u&
syWG'(>
Scheme ~k!j+>yT
(display "Hello, world!") 4,sJE2"[9
(newline) \DYWy*pe
Q3
u8bx|E
w\(.3W7
sed (需要至少一行输入) ,I7E[LU
sed -ne '1s/.*/Hello, world!/p' 0O9Ni='Tn
mR&H9NG
c#|raXGT
Smalltalk ;1:Js0=;H
Transcript show: 'Hello, world!' <D:.(AUeO
q|j2MV5#g
W{5#@_pL
SNOBOL {1IfU
OUTPUT = "Hello, world!" ur3(HL
END [NaN>BZ?
!qv ea,vw
(MR_^t
SQL zfc'=ODX
create table MESSAGE (TEXT char(15)); SW*"\X;
insert into MESSAGE (TEXT) values ('Hello, world!'); :ctu5{"UJ
select TEXT from MESSAGE; _oHNkKQ
drop table MESSAGE; [#l*_0
MXw hxk#E
b6Wqr/
Tcl U*i{5/$
#!/usr/local/bin/tcl C"!gZ8*\!9
puts "Hello, world!" I$<<(VWH
CS@FYO
T?x[C4wf+
TScript 8dO!
? "Hello, world!" =-8bsV/l
;LG#.~f
*QwY]j%^
Turing rf?qdd(~cH
put "Hello, world!" yUZb#%n
O!P H&;H
y`F3Hr c
UNIX-style shell U&Wt%U{
程序中的/bin/sh可改为您使用的shell F@mQQ
r~/
#!/bin/sh rf>0H^r
echo 'Hello, world!' ?$*SjZt
1Md
VtnRgdJ
GUI `+o2DA)#(
)Qe~8u@?
Delphi ;nodjbr,j
program HelloWorld; v*r7Zz6l
uses ToJ$A`_!`
Dialogs; z.kvX+7'
begin (BTVD,G
ShowMessage('Hello, World!'); EK;YiJ
end. #:[t^}
qv]}$WU
vgsJeV`}I
Nuva V!lZ\)
<. g]4(g<:O
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) >Db;yC&
.> Ov-icDMm
OW3sS+y
w2
a1mU/
Visual Basic \HKxh:F'
MsgBox "Hello, world!" Y0x%sz5
'或者 5Ow[~p"l<
Print "Hello, world!" vR s,zL$W
TygW0b 1
K('hC)1
Visual FoxPro :c8&N-`
? "Hello, world!" E^vJ@O
\#Pfj&*
)XvilCk1
X11 ) L#i%)+
用一个程序 !a7[8&
l038%U~U!
xmessage 'Hello, world!' q(`/Vo4g(
rEB@$C^
用C++和gtkmm 2 P(+&OoY2
RloK,bg
#include <iostream> n?- })
#include <gtkmm/main.h> {so`/EWa
#include <gtkmm/button.h> [H6hyG~
#include <gtkmm/window.h> 3BtaH#ZY
using namespace std; bn!HUM,
l|kSsP:GO
class HelloWorld : public Gtk::Window FFu9&8Y
{ ,.kha8v
public: {]:7bV#JP
HelloWorld(); U)E(`{p]
virtual ~HelloWorld(); >8k_n
protected: GBRa.;Kk
Gtk::Button m_button; f@Zszt
virtual void on_button_clicked(); Q36qIq_0e
}; V:VO[e<e
thifRd$4
HelloWorld::HelloWorld() : m_button("Hello, world!") yXHUJgjl/
{ KY51rw.
set_border_width(10); [n \2
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ]Q>.HH
add(m_button); [8T^@YN
m_button.show(); :9QZPsL
} w8U&ls