“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。 X':FFD4h
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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》。 EN\cwa#FU
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以下是用不同语言写成的Hello World程序的几个例子: 0 (wu
Ada (Fon!_$:
with Ada.Text_Io; use Ada.Text_Io; ~q}L13^k
procedure Hello is G|KA!q
begin Z8ea)_{#
Put_Line ("Hello, world!"); DOJydYds
end Hello; 9>w~B|/
3\@2!:>
IZj`*M%3
汇编语言 ;&O?4?@4
p"p~Bx
x86 CPU,DOS,TASM s{Qae=$Q
MODEL SMALL kEnGr6e
IDEAL up'`)s'
STACK 100H m6mGcbpn
m%`YAD@2z
DATASEG T,/rC{
HW DB 'Hello, world!$' f(w>(1&/B
?'6@m86d
CODESEG $ ubU"
MOV AX, @data (l^7EpNs
MOV DS, AX O'wmhLa"W
MOV DX, OFFSET HW JE-*o"&
MOV AH, 09H P M [_0b
INT 21H |-}.Y(y
MOV AX, 4C00H \)No?fB
INT 21H &M}X$k I
END ?'TK~,dG/
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zgN%
7j\^h2
x86 CPU,GNU/Linux,NASM {IJ;)<>&VE
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). "u7[[.P)
;Enter this into "hello.asm" then type: \,G9'c 'u
;"nasm -f elf hello.asm" 1 ;$XX#7o
;"ld hello.o -o hello" hJ{u!:4
;"./hello" :TU|:2+
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section .data ;data section declaration uKP4ur@1
msg db 'Hello World!',0AH FSA%,b;U
len equ $-msg ;string length y<Q"]H.CkQ
w-pgtO|Us
section .text ;code section declaration ce\d35x!
global _start ;entry point (start of execution) I;t@wbY,
_start: mov edx,len ;string length tJ6@Ot
mov ecx,msg ;string start J;>epM;*
mov ebx,1 ;file handle: stdout .@,t}:lD
mov eax,4 ;sys_write UmWXv#q\l
int 80h ;kernel system call h5'hP>b#
^1.*NG8
mov ebx,0 ;return value kP%hgZ
mov eax,1 ;sys_exit UA8hYWRP
int 80h ;kernel system call Q
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W]oD(eZ
x86 CPU,Windows,MASM32 ae sk.
.386 "TJu<O"2
.model flat,stdcall G^W0!u,@
option casemap:none .U0Gm_c0
;Include 文件定义 Jr!BDg
include windows.inc tdH[e0x B
include user32.inc }CBQdH&g;
includelib user32.lib '|SO7}`;Q
include kernel32.inc :Ph>\ aG
includelib kernel32.lib
=Pl@+RgK+
;数据段 2nkA%^tR
.data =tP9n ;D
szCaption db 'A MessageBox!',0 y{hg4|\
szText db 'Hello,world!',0 58s-RO6
;代码段 GM%OO)dO}
.code X
61|:E
start: 9S|sTf
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK [nO3%7t@
invoke ExitProcess,NULL l)[|wPf
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *2X~NJCt
end start 3
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eK:?~BI!
#-'`Ybw
AWK P?h1nxm`'
BEGIN { print "Hello, world!" } DU%E883
z,TH}s6
src9EeiV
BASIC jU&m*0nL
传统版BASIC(例如GWBASIC): f#!+l1GV
Zt!# KSF7%
10 PRINT "Hello, world!" YbP
@
20 END [Y](Y3 /.N
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或在提示符输入: 4{uQ}ea
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?"Hello, world!":END %b^4XTz
wSjDa.?'
现代版BASIC(例如Quick BASIC): $t;:"i>
Hx gC*-A$/
Print "Hello, world!" s6|'s<x"j
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以下的语句在Quick BASIC中同样有效: ~b~Tq
;_bRq:!j;
? "Hello,world!" oVpZR$
MIZdk'.U
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BCPL RK!9(^Ja
GET "LIBHDR" 0V~zZ/e
h =A
LET START () BE ?y-^Fq|h
$( TGF$zvd
WRITES ("Hello, world!*N") RTc@`m3 M
$) @
8H$
Fe0M2%e;|
*-9i<@|(U^
Befunge OvX&5Q5
"!dlrow olleH">v yI:
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, ' 4FH9J
^_@ sGu.G
M1/d7d
OeqKKVuQ
Brainfuck B5z'Tq1
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ?sk>Mzr
+++++++++++++++.>.+++.------.--------.>+.>. fmuh9Z
Q-oDmjU
'.bf88D
C GmB&TDm
#include <stdio.h> ,&UKsrs_
UOZ+&DL,L
int main(void) V~dhTdQ5}
{ [q?RJmB]
printf("Hello, world!\n"); &4-;;h\H
return 0; f5V-;
} v])ew|
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C++ Ur])*#
#include <iostream> b{<?E };%
YCDH 0M
int main() ZHNL~=r}
{ -P;0<j@6k5
std::cout << "Hello, world!" << std::endl; `D77CC]vU
return 0; 5pJe`}O4
} v#Rh:#7O%U
qzZ/%{Ak
t<UJR*R=L
C++/CLI V?M(exN
int main() uY.Ns ?8
{ A08kwYxiW
System::Console::WriteLine("Hello, world!"); X84T F~2Y
} =cEsv&i
3mHzOs\jU
}b\hRy~=r
C# (C Sharp) }nlS&gew^
class HelloWorldApp J%CCUl2
{ g!XC5*}
public static void Main() INA3^p'w
{ =@!t/LR7kg
System.Console.WriteLine("Hello, world!"); ;stjqTd
} hW#^H5?
} -P}A26qB
1Vu#:6%
e`n ZiM>
COBOL 5GM-*Ak @
IDENTIFICATION DIVISION. wyy
1M+
PROGRAM-ID. HELLO-WORLD. K83'`W^
HV~Fe!J_
ENVIRONMENT DIVISION. 9O 'j+?(`@
8oJl ]
DATA DIVISION. [#Qf#T%5h
;U=b6xE
PROCEDURE DIVISION. o-rX 4=T
DISPLAY "Hello, world!". bG]0|
STOP RUN. Wq4<9D
?y?9;;
&3t973=
Common Lisp H7Q$k4\l
(format t "Hello world!~%") (\F9_y,6*\
1b%Oi.;
Cx2#
0$
DOS批处理 tczJk1g}
@echo off bA)nWWSg=
echo "Hello, world!" J1G}l5N
AIg4u(j
2fTuIS<yr
Eiffel 86=W}eV1r
class HELLO_WORLD Vkg0C*L_
X]=eC6M}:V
creation @:?[R&`
make d^=)n-!T
feature tu}!:5xi
make is }i8y/CA
local #^L&H
oo6
io:BASIC_IO ^s{F f+]W
do k;^$Pd?t
!!io Uoe{,4T
io.put_string("%N Hello, world!") p-iFe\+
end -- make 94w)Yln
end -- class HELLO_WORLD Q$U5[TZm
F1.Xk1y%
\ivxi<SR
Erlang 'V?FeWp
-module(hello). ID_4M_G
-export([hello_world/0]). 9295:Y| w1
zcP=+Y)YA
hello_world() -> io:fwrite("Hello, World!\n"). c]uieig0~
tpGT~Y(
}[akj8U
Forth 'JOCL0FP
." Hello, world!" CR gO8d2?Oh
BzfR8mD
_
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Fortran $BdwKk
!k
WRITE(*,10) 23tX"e
10 FORMAT('Hello, World!') _z#"BN
STOP ~3.*b%,
END oMEW5.VX
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HTML )jOa!E"
<HTML> ui>jJ(
<HEAD> Kzrd<h]`)
<TITLE> Hello World! </TITLE> J]U_A/f
</HEAD> !MKecRG_
<BODY> )J[m>tyY5
<p>Hello World!</p> J!l/.:`6
</BODY> <W#G)c0
</HTML> Ye3o}G9z
q? ">
bh@Ct nO
HQ9+ :XhF:c[.:
H PRU&y/zZmG
-W9DH^EL<
1L*[!QT4
INTERCAL
b WNa6x
PLEASE DO ,1 <- #13 Sh(ys*y>
DO ,1 SUB #1 <- #238 V| V9.
DO ,1 SUB #2 <- #112 rC!O}(4t%$
DO ,1 SUB #3 <- #112 VFf;|PHS
DO ,1 SUB #4 <- #0 M)#9Q=<
DO ,1 SUB #5 <- #64 qob!AU|
DO ,1 SUB #6 <- #238 OWibmX
DO ,1 SUB #7 <- #26 ms0V1`
DO ,1 SUB #8 <- #248 }*(_JR4G
DO ,1 SUB #9 <- #168 tM]Gu?6
DO ,1 SUB #10 <- #24 0;l~B
DO ,1 SUB #11 <- #16 D\_nqx9O
DO ,1 SUB #12 <- #158 3WP\MM
DO ,1 SUB #13 <- #52 BI?, 3
PLEASE READ OUT ,1 G[ U5R?/
PLEASE GIVE UP R>0[w$
d` ttWWPw
n$C-^3c
Java 7K.75%}
public class Hello nms[No?
{ (B4)L%
public static void main(String[] args) i?!9%U!z4
{ rci,&>L"
System.out.println("Hello, world!"); av!;k2"
} Ga5s9wC
} cjL)M=pIS
a_c(7bQ
pL,XHR@Iv
JSP fx|d"VF[
<% t}k:wzZ@
out.print("Hello, world!"); b@CjnAZ
%> 6]iU-k0b
W+a/>U
?+.mP]d_
MIXAL #A5X,-4G
TERM EQU 19 the MIX console device number UE^o}Eyg
ORIG 1000 start address W!<7OA g $
START OUT MSG(TERM) output data at address MSG C_N|o|dX
HLT halt execution Z
01A~_
MSG ALF "MIXAL" [p6:uNo
ALF " HELL" ]B )nN':
ALF "O WOR" c?CD;Pk
ALF "LD " >>T7;[h
END START end of the program jVnTpa!A
{3
S%MDQTM
Nuva c~tl0XU1
<..直接输出..> ZRf9 'UwS
Hello, world! |Lg2;P7\
&lLk[/b
<..或者..> T*/I4"
r{.pXf
<. }OEL] 5
// 不带换行 i!2k f
? "Hello, world!" FQ4R>@@5
26/<\{q~
// 或者 o:{Sws(=
>s5}pkAv|e
// 带换行 32K& IfV
?? 'Hello, world!' FXo.f<U
.> z@VL?A(3
BX$<5S@
"9P @bA
OCaml ^5s7mls
let main () = lO cFF0'
print_endline "Hello world!";; 8?82 p
;+\h$
b|-)p+ba
Pascal ;-`NT`
#2
program Hello; %j^QK>%
begin @K!JE w\
writeln('Hello, world!'); @ovaOX
end.
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Perl >0@w"aKn
#!/usr/local/bin/perl ;)h?P.]
print "Hello, world!\n"; :!s7B|_U
h
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{xg=Ym)
PHP We$
n
<?php 9~`#aQG T
print("Hello, world!"); xwo*kFg
?> bhpaC8|
iN8[^,2H|
ZY8.p
Pike O^!ds
#!/usr/local/bin/pike SLEOcOAmD
int main() zV}:~;w
{ .I~:j`K6
write("Hello, world!\n"); WA2NjxYz
return 0; s3sRMB2
} \2;!}
N4;g"k b
,j XK
PL/I %P ~;>4i,
Test: procedure options(main); |aenQA#
declare My_String char(20) varying initialize('Hello, world!'); JYWoQ[ZO#>
put skip list(My_String); )A*53>JV
end Test; c<Cf|W
p^ (Z
P Ptmh. }e
Prolog |a03SZx
goal 5{(4%
write("hello,world!"). .+S%hT,v6i
Zq&'a_
K3\a~_0
Python ,ASNa^7/>
#!/usr/local/bin/python ~8&->?{
print "Hello, world!" ! 7V>gWhR
.'o=J`|
Eb~vNdPo
REXX xGyl7$J
say "Hello, world!" *bo| F%NAz
+pgHCzwJE
^[SW07o~
Ruby I)yaR+l
#!/usr/bin/ruby }O+xs3Uv
print "Hello, world!\n" 'AK '(cZ
ftMlm_u
Ws5N|g
Scheme aHC%:)ww:
(display "Hello, world!") ~ zfF*A
(newline) %Qz<Lk">.
;76+J)
yKUxjb^b\
sed (需要至少一行输入) 4G:~|N.{p
sed -ne '1s/.*/Hello, world!/p' <ot`0
[*O>Lk
muXP5MO
Smalltalk 6p
}a!
Transcript show: 'Hello, world!' +x{o
>}f!. i
gdD|'h
SNOBOL oUsfO-dET^
OUTPUT = "Hello, world!" 7:F0?l*
END F&uiI;+zJ
8y5"X"U
YGPb8!
SQL Zgh~7Z/
create table MESSAGE (TEXT char(15)); <w}^Z}fpk&
insert into MESSAGE (TEXT) values ('Hello, world!'); .! <yTh
select TEXT from MESSAGE; w=?nD6Xhz
drop table MESSAGE; @{RhO|UR
::{\O\w
z59;Qk
Tcl JtY$AP$
#!/usr/local/bin/tcl | eCVq(R
puts "Hello, world!" DcFY b|p
4jDi3MMU9
yw:%)b{
TScript xU%]G.k
? "Hello, world!" 6<@+J
9c4p9b!
5Q%)|(U'
Turing U"|1@W#
put "Hello, world!" =D0d+b6
;;i419
m$W2E.-$'#
UNIX-style shell zQ:nL*X'Z"
程序中的/bin/sh可改为您使用的shell &a'mG=(K_c
p:b{>lM
#!/bin/sh qF^P\cD
echo 'Hello, world!' HOu$14g
h
#gI1(uL
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GUI .9Oj+:n
UVLS?1ra
Delphi CLZj=J2
program HelloWorld; >0:3CpO*
uses O[$X36z
Dialogs; n~
$S
begin aC=2v7*
ShowMessage('Hello, World!'); !Z>,dN
end. 0TV16--
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m4W (h6
Nuva q]f7D\ M
<. i@6g9\x+
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) |FT.x9e-
.> m;"[b (u
`K0.6i [p
~X2# z|
Visual Basic ~)$R'=
MsgBox "Hello, world!" VJ'-"8tY&
'或者 &FRf-6/
Print "Hello, world!" }8l+Jd3"
0Y* "RbG
ueU "v'h\
Visual FoxPro f%_$RdU
? "Hello, world!" Z%ZOAu&p
)CoFRqz<h
um]N]cCD`
X11 nTsV>lQY,
用一个程序 WxD$k3U
+KExK2=
xmessage 'Hello, world!' 3,i`FqQa
i@P=*lLD
用C++和gtkmm 2 aBQ --Sz
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#include <iostream> ;W+1 H !
#include <gtkmm/main.h> :#sBNy
#include <gtkmm/button.h> %#4;'\'5
#include <gtkmm/window.h> qooTRqc#,
using namespace std; 7o+VhW<|5
3Jda:
class HelloWorld : public Gtk::Window &q4~WRnzJk
{ H/W&a2R^P
public: ~FI} [6Dd
HelloWorld(); cuG;1,?b
virtual ~HelloWorld(); S+6YD0
protected: 0V8G9Gj
Gtk::Button m_button; S]T71W<i
virtual void on_button_clicked(); p}GTOJT}
}; JSh'iYJ.
H.n|zGQTB
HelloWorld::HelloWorld() : m_button("Hello, world!") GRL42xp'*D
{ { ~{D(k
set_border_width(10); V^D1:9i
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); xPT$d,~"
add(m_button); cbou1Ei
m_button.show(); b!SIs*
} "/^kFsvp
s#0m
HelloWorld::~HelloWorld() {} T|oDJ]\J
/Yww G;1
void HelloWorld::on_button_clicked() 26zif
{ uGlz|C
cout << "Hello, world!" << endl; M>RLS/r>d
} NJ}xqg
uY3$nlhP6
int main (int argc, char *argv[]) 1Ogtzf
{ h9c7P@29
Gtk::Main kit(argc, argv); tx3p,
X
HelloWorld helloworld; ;F, 6]LH!
Gtk::Main::run(helloworld); -jTK3&5
} >i1wB!gc8
A}pe>ja
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Java LWM& k#i
import java.awt.*; 86&r;c:
import java.awt.event.*;
`i!-@WN"
Q3)[
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public class HelloFrame extends Frame TxkvHiq2
{ I[ZWOi\-
;
HelloFrame(String title) uWXxK"J.
{ $:DL+E-}
super(title); 0B`rTLwB
} _#P5j#
public void paint(Graphics g) aC'#H8e|j
{ CS"k0V44}
super.paint(g); 1*@Q~f:Uk
java.awt.Insets ins = this.getInsets(); G
in
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); M@.?l=1X
} :e_yOT}}
public static void main(String args []) lQ.3_{"s
{ /KJWo0zo
HelloFrame fr = new HelloFrame("Hello"); Tc;BE
9fSX=PVRmQ
fr.addWindowListener( uTrGb:^
new WindowAdapter() rPW9lG
{ cz>`$Zz
public void windowClosing(WindowEvent e) "Jyb?5
{ 7.^1I7O
System.exit( 0 ); t&bE/i_T
} .|kp`-F51
} =6w(9O
); t9
id^
fr.setResizable(true); W9SEYkg
fr.setSize(500, 100);
C%Op[H3
fr.setVisible(true); DGAg#jh
} ORV'dr
} q*>|EJR^Rw
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xaSiG
Java Applet oP<E)
Java Applet用于HTML文件。 eY$Q}BcW
0ipYXbC
HTML代码: <_Po/a!c3
W.b?~
<HTML> /0F
<GBQ"v
<HEAD> vi.q]$ohbV
<TITLE>Hello World</TITLE> }5;3c %
</HEAD> J&b&*3
<BODY> Zf`ddT
j~9,Ct
HelloWorld Program says: 0.t1p(x;
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