“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。 rx!=q8=0R
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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》。 c0rk<V%5+
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以下是用不同语言写成的Hello World程序的几个例子: Im?LIgt$
Ada 'EhBRU%
with Ada.Text_Io; use Ada.Text_Io; L%h/OD
procedure Hello is >I'%!E;
begin i.y)mcB4
Put_Line ("Hello, world!"); l=={pb
end Hello; 3z8C
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vjUp *R>h
汇编语言 bGmx7qt#
8e2?tmWM
x86 CPU,DOS,TASM *hY2.t; X
MODEL SMALL L%\b' fs
IDEAL 2A:,;~UH
STACK 100H wCKj7y[
{/8Q)2*>0
DATASEG {eT.SO
HW DB 'Hello, world!$' I 3$dVls}
TO#Pz.)>B6
CODESEG .~D>5 JnEk
MOV AX, @data !8Rw O%c(
MOV DS, AX tWPO]3hW
MOV DX, OFFSET HW {D`T0qPT[
MOV AH, 09H LKF/u` 0dP
INT 21H sen=0SB/
MOV AX, 4C00H UKBJ_r
INT 21H WF2-$`x
END ~r*P]*51x
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nsuX*C7
x86 CPU,GNU/Linux,NASM xge7r3i
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). #JW+~FU`
;Enter this into "hello.asm" then type: 9pSUIl9|j
;"nasm -f elf hello.asm" Ud(`V:d
;"ld hello.o -o hello" ~mp0B9L%
;"./hello" 1KE:[YQ1
H)(jh
section .data ;data section declaration Ey`h1Y
msg db 'Hello World!',0AH IDFFc&
len equ $-msg ;string length K|r Lkl9
L^`}J7r
section .text ;code section declaration |oFAGP1
global _start ;entry point (start of execution) 2N [=
_start: mov edx,len ;string length CI7A#
6-
mov ecx,msg ;string start DXR:1w[^
mov ebx,1 ;file handle: stdout dJk9@u
mov eax,4 ;sys_write ,!QV>=
int 80h ;kernel system call ;0%OB*lcgE
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mov ebx,0 ;return value 83Ou9E!W
mov eax,1 ;sys_exit zGo|JF
int 80h ;kernel system call K\?]$dK5
K7)kS
k;^
:
x86 CPU,Windows,MASM32 uE5X~
.386 e":G*2a
.model flat,stdcall vGd1w%J-
option casemap:none &, a3@i
;Include 文件定义 Fke//- R
include windows.inc o>]`ac0b}Y
include user32.inc dY!Z
includelib user32.lib bn9;7`>.
include kernel32.inc zw@'vncc
includelib kernel32.lib Ri7((x]H"
;数据段 t67Cv/r~
.data L:&k(YOBA
szCaption db 'A MessageBox!',0 E8[T
szText db 'Hello,world!',0 v3[@1FQ"
;代码段 TLa]O1=Bf.
.code o*S"KX$
start: X[$++p
.
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK t#E}NR
invoke ExitProcess,NULL eVh-_
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Sus;(3EX
end start bZwnaM4"F
~l E _L1-c
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BEGIN { print "Hello, world!" } 2@j";+
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BASIC ){;02^tX
传统版BASIC(例如GWBASIC): kL*0M<0 (
qdD)e$XW,
10 PRINT "Hello, world!" 1OaXo!
20 END pW\'ZRj
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或在提示符输入: ?\=/$Gt
;3'NMk
?"Hello, world!":END MjL)IgT
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现代版BASIC(例如Quick BASIC): e&<yX
0ezYd S~o
Print "Hello, world!" {Tp2H_EG
2h=%K/hhY
以下的语句在Quick BASIC中同样有效: HfNDD|Zz
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? "Hello,world!" {tP%epQ
B2=\2<
o2H1N~e#c
BCPL G@ \Pi#1
GET "LIBHDR" 32)tJ|m
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LET START () BE .^(/n9|o-
$( +C]&2zc.
WRITES ("Hello, world!*N") j{++6<tr
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Befunge xl9aV\W
"!dlrow olleH">v K,ej%Vtz
, sy* y\5yJ
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h!
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Brainfuck 22hSove.
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< V<Z'(UI
+++++++++++++++.>.+++.------.--------.>+.>. (t^n'V
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n||A" @b\
C ?i\;:<e4
#include <stdio.h> uYI@9U
y^>Q/H\
int main(void) fT\:V5-
{ 4<,|*hAT
printf("Hello, world!\n"); ;F:fM!l=
return 0; kh$_!BT
}
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;!>Wz9
Xf'=+f2p
C++ `(y(w-:W1
#include <iostream> p&p.Q^"ok
gJN0!N'
int main() {^)70Vz>PE
{ Pn.bVV:
std::cout << "Hello, world!" << std::endl; TA18 gq
return 0; LwqC~N
} -;(Q1)&
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q Dd~2"er
C++/CLI 5v.DX`"
int main() <~U4*
{ gwkb!#A
System::Console::WriteLine("Hello, world!"); |H}sYp
} 66&EBX}
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C# (C Sharp) RSfM]w}Hq#
class HelloWorldApp 4p`XG1Pt
{ Lz9#A.
public static void Main() &Nl2sey
{ \5
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System.Console.WriteLine("Hello, world!"); Fe&qwq"
} +YY8h>hj
} zR6siAV9
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hi2sec|;<
COBOL klOp ^w
IDENTIFICATION DIVISION. rnFM/GAy
PROGRAM-ID. HELLO-WORLD. GV|9H]_,I
shC;hR&;
ENVIRONMENT DIVISION. :t$aN|>y
ihe(F7\U
DATA DIVISION. 9v)%dO.
bKVj [r8D~
PROCEDURE DIVISION. &[R8Q|1j
DISPLAY "Hello, world!". 8^^[XbH
STOP RUN. qem(s</:
4R%*Z~
cR{>IH 4^
Common Lisp W_M'.1 t
(format t "Hello world!~%") zoDZZ%{
[U
=Uo*
l.)}t)my}
DOS批处理 *4Fr&^M\
@echo off -4#2/GXNO
echo "Hello, world!" ^n.WZUk
ws/63d*
F N[R(SLbL
Eiffel Zi$ziDz&
class HELLO_WORLD )ukpJ z""
:\~+#/=:
creation ~i;fDQ&!
make zdun,`6
feature #Doq P:
make is SjEAuRDvUz
local |+IZS/W"
io:BASIC_IO J'mDU
do E4.SF|=x
!!io Bvjl-$m!v
io.put_string("%N Hello, world!") F51.N{'
end -- make C_fY %O
end -- class HELLO_WORLD V,v[y\
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zzGYiF?
Erlang I8Vb-YeS
-module(hello). <3X7T6_:@
-export([hello_world/0]). Rhzn/\)|
T5Eseesp
hello_world() -> io:fwrite("Hello, World!\n"). iX{G]< n
1t[j"CG(o
:VmHfOO
Forth kdx
y\
jA
." Hello, world!" CR 2
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ZUXr!v/R:1
0o&MB
Dp
Fortran =4!nFi
WRITE(*,10) "O>n@Q|
10 FORMAT('Hello, World!') 1r)kR@!LNG
STOP YA(@5CZ
END +A_J1iJ<
oT95^y\9
$3+PbYY
HTML m(OvD!
<HTML> r} _c
<HEAD> 'Yy&G\S
<TITLE> Hello World! </TITLE> !|?e7u7
</HEAD> G28O%jD?
<BODY> 5x2Ay=s
<p>Hello World!</p> ~q +[<xR\
</BODY> *v%rMU7,
</HTML> L *[K>iW
wRNroQ
=dP{ Gh
HQ9+ ?ne_m:J[
H 2LY=DL7
!{^\1QK
O OFVnu
INTERCAL 9X<OJT;3J
PLEASE DO ,1 <- #13 ;)0w:Zn/[
DO ,1 SUB #1 <- #238 PG5- ;i/
DO ,1 SUB #2 <- #112 0pe3L
DO ,1 SUB #3 <- #112 w>?Un,K
DO ,1 SUB #4 <- #0 _cDF{E+;
DO ,1 SUB #5 <- #64 _+f+`]iM
DO ,1 SUB #6 <- #238 D]! aT+
DO ,1 SUB #7 <- #26 %Tn#-
DO ,1 SUB #8 <- #248 N^?9ZO
DO ,1 SUB #9 <- #168 Wk;5/
DO ,1 SUB #10 <- #24 Pj#'}ru!
DO ,1 SUB #11 <- #16 {y
kYW%3s
DO ,1 SUB #12 <- #158 XV>JD/K2
DO ,1 SUB #13 <- #52 Y OyX[&oi
PLEASE READ OUT ,1 R614#yn-+
PLEASE GIVE UP >"X\>M`"
s'P( ,!f
bJr[I
Java
ug 7o>PX
public class Hello XdEPbD-
{ Vsq8H}K
public static void main(String[] args) DmqX"x%P
{ zRl~^~sY
System.out.println("Hello, world!"); DLPUqKL]
} +';>=hha
} E|"=.
T
=H7xD"'%R
i?;r7>
JSP g8;D/
<% mo]KCi
out.print("Hello, world!"); z;u>
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%> 0CvsvUN@
z T%U!jqI
yTM{|D]$(
MIXAL L7Dh(y=;7
TERM EQU 19 the MIX console device number .?C%1a&_l
ORIG 1000 start address #>;FUZuJr
START OUT MSG(TERM) output data at address MSG }b3/b
HLT halt execution 8Ad606
MSG ALF "MIXAL" A!W0S
ALF " HELL" d?idTcgs
ALF "O WOR" `A%^UCd
ALF "LD " qf'm=efRyu
END START end of the program 5@osnf?
{WN(&eax
[ANuBNF
Nuva 46jh-4)<
<..直接输出..> RH)EB<PV
Hello, world! s3s4OAY
hi=XYC,
<..或者..> ;_kzcK!l
&UHPX?x
<. _=6 rE
// 不带换行 C@y8.#l
? "Hello, world!" AS!6XT
5,"l0nrk
// 或者 wVs.Vcwr
>r5P3G1
// 带换行 !%mAh81{&/
?? 'Hello, world!' $Byj}^ ;1
.> Lju7,/UD
=?0lA_
0
$L4/I !Yf
OCaml 5vzceQE}
let main () = E&$_`m;
print_endline "Hello world!";; v'2[[u{7*
4\t1mocCSN
W~T}@T:EN
Pascal #PvB/3
program Hello; !{,F~i9
begin EC&@I+'8Q
writeln('Hello, world!'); ;|%dY{L-
end. vEM(bT=H
4S0>-?{
F7m?xy
Perl vQV K$n`
#!/usr/local/bin/perl $>M<j
print "Hello, world!\n"; f}c\_}(
txql 2
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PHP cNpe_LvW
<?php 4o:hyh
print("Hello, world!"); R$kpiqK
?> =tTqN+4
2],_^XBvB
p4> $z& _
Pike @\_x'!R
#!/usr/local/bin/pike ` >!n
int main()
{npcPp9
{ _#e&t"@GS
write("Hello, world!\n"); v
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return 0; gJt`?8t
} 6~:Sgt nU
Rx36?/
07T70[G
PL/I [36,eK
Test: procedure options(main); u]^N&2UW
declare My_String char(20) varying initialize('Hello, world!'); Wm'QP4`
put skip list(My_String); Dz=k7zRg"
end Test; Rr(* aC2P
+!-~yf#RE
h~U02"$
Prolog ~\nBjM2
goal Sgb*tE)T
write("hello,world!"). U7mozHS,:9
)Ag/Qep
y]..=z_ql
Python >C WKH~
#!/usr/local/bin/python 7DW]JK l
print "Hello, world!" lor8@Qz
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!
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REXX ( fD
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say "Hello, world!" h 6G/O`:
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Ruby 7z6b@$,
#!/usr/bin/ruby *x~xWg9^
print "Hello, world!\n" >e5 *prx+
gsar[gZ
sH,kW|D
Scheme gMWBu~;!
(display "Hello, world!") AEmNHO@%q
(newline) >M%\T}5
^da44Qqu
&Wp8u#4L
sed (需要至少一行输入) S,fCV~Cio?
sed -ne '1s/.*/Hello, world!/p' F1;lQA*7K.
3T\l]? z
`"yxdlXA
Smalltalk y #f
QPR
Transcript show: 'Hello, world!' :WGtR\tK
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pi( -A
SNOBOL D8{D[fJ;
OUTPUT = "Hello, world!" U8#xgz@
END pN6%&@) =
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w"m+~).U
SQL -kz4FS
create table MESSAGE (TEXT char(15)); {>3\N0e5
insert into MESSAGE (TEXT) values ('Hello, world!'); |s7`F%
select TEXT from MESSAGE; )'4P.>!!aQ
drop table MESSAGE; rsn.4P=
;^
wd_
{n3EGSP#
Tcl uy _wp^
#!/usr/local/bin/tcl @r(Z%j7
puts "Hello, world!" I-D^>\k+
zo{/'BnU
EqiFy"H
TScript ~8 H_u
? "Hello, world!" +1JH
p1pQU={<
u*S=[dq
Turing [$(%dV6O
put "Hello, world!" 2N#$X'8
Mk 0+D#
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UNIX-style shell +'@+x'/{^
程序中的/bin/sh可改为您使用的shell h!@|RW&}qX
<^.=>Q0S\
#!/bin/sh }_tl n
echo 'Hello, world!' qL$a
c}`
?,P3)&3g
<Tw>|cFT
GUI })xp%<`
p=GWq(S6
Delphi M69
w-
program HelloWorld; vD/NgRBww
uses nL@KX>
Dialogs; M4LP$N
begin :,;K>l^U
ShowMessage('Hello, World!'); l:;PXy6)
end. %t=kdc0=_
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+=Jir1SLV
Nuva ,&PE6hn
<. ?PA$Ur21lw
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) _!;Me
)C
.> 1 Q;}zHd
Z 2}ah
Ft=zzoVKg
Visual Basic Q'l^9Bz
MsgBox "Hello, world!" zepop19
'或者 @}_WE,r
Print "Hello, world!" 8bK|:B#6,
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q>f<u&
Visual FoxPro (z7vl~D
? "Hello, world!" #&<)! YY5
\]Kh[z0"
3uU]kD^
X11 mC&=X6Q]
用一个程序 682Z}"I0
eg<bi@C1|
xmessage 'Hello, world!' \}6;Kf}\
3<=,1 cU
用C++和gtkmm 2 spU)]4P&
d\MLOXnLq;
#include <iostream> WH ?}~u9
#include <gtkmm/main.h> 'ckQg=zPR
#include <gtkmm/button.h> ,y4I[[
#include <gtkmm/window.h> 1"8yLvtn
using namespace std; :(dHY
a8u9aEB
class HelloWorld : public Gtk::Window J]W5[)L
{ <9ig?{'
public: o)6p A^+
HelloWorld(); h1 WT
virtual ~HelloWorld(); { pu85'DV
protected: ERwHLA
Gtk::Button m_button; V^y^
;0I}[
virtual void on_button_clicked(); ')a(.f
}; s,bERN7'yO
T +5X0 Nv
HelloWorld::HelloWorld() : m_button("Hello, world!") `k(yZtb
{ s &Dg8$
set_border_width(10); NC&DF