“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。 JzCfs<D
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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》。 cfa#a!Y4
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以下是用不同语言写成的Hello World程序的几个例子: d),@&MSN
Ada ?Tt/,Hl?D
with Ada.Text_Io; use Ada.Text_Io; /V-7 u
procedure Hello is xlv:+
begin A:&
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Put_Line ("Hello, world!"); ]={:VsnL
end Hello; (Q\QZu@
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+2MsyA?6_
汇编语言 9e1gjC\ c
NNb17=q_v
x86 CPU,DOS,TASM HO}aLp
MODEL SMALL ,HY z-sK.
IDEAL C&K%Q3V
STACK 100H k7f[aM 5]
ayHI(4!$j
DATASEG |]Pigi7y-
HW DB 'Hello, world!$' 4- N>#
I)O%D3wfMW
CODESEG jZe]zdml
MOV AX, @data p"JITH:G
MOV DS, AX hFyN|Dqhds
MOV DX, OFFSET HW WcbJ4Ore
MOV AH, 09H E}.cz\!.
INT 21H ;m@>v?zE
MOV AX, 4C00H c{s<W}3Ds
INT 21H **dGK_^T0
END Nbuaw[[iz
h9&<-k
0XvMaQXQF
x86 CPU,GNU/Linux,NASM a(BWV?A
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). +!'6:F
;Enter this into "hello.asm" then type: Uw<Lt"ls.
;"nasm -f elf hello.asm" "?}QwtUW
;"ld hello.o -o hello" l?Bv9k.^?
;"./hello" 3eFD[c%mN
ir3iW*5k
section .data ;data section declaration l{_>?]S5
msg db 'Hello World!',0AH Pg|q{fc
len equ $-msg ;string length m-7^$
VS1gg4tCv
section .text ;code section declaration ex&&7$CXc
global _start ;entry point (start of execution) MoO
jM&9
_start: mov edx,len ;string length laKMQLtv
mov ecx,msg ;string start 4VD'<`R[
mov ebx,1 ;file handle: stdout ezC55nm
mov eax,4 ;sys_write eNi.d;8F
int 80h ;kernel system call VCkhK9(N
jFbz:aUF
mov ebx,0 ;return value Eki7bT@/
mov eax,1 ;sys_exit @_h/%>0
int 80h ;kernel system call nYTI\f/8v
=r:D]?8oC
f+-w~cN
x86 CPU,Windows,MASM32 YdhrFw0`~r
.386 /M\S^!g@
.model flat,stdcall {(7C=)8):
option casemap:none /,c9&it(M
;Include 文件定义 8!S="_
include windows.inc n[AJ'A{
include user32.inc 6n45]?
includelib user32.lib \Vr(P>
include kernel32.inc L}lc=\
includelib kernel32.lib /N{x Ft/?
;数据段 }m\
.data a:H}c9$%
szCaption db 'A MessageBox!',0
=y[eQS$
szText db 'Hello,world!',0 T[~ak"M
;代码段 QJvA
.code \E]s]ft;+
start: ZWh:&e(
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK .'L@$]!G
invoke ExitProcess,NULL 6(<M.U_ft
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> b?h"a<7
end start r6*0H/*
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D{PO!WzW
AWK u` R
BEGIN { print "Hello, world!" } _lu.@IX-
GriL< =?t
`cMa Fc-y/
BASIC D9 ,~Fc
传统版BASIC(例如GWBASIC): fW <qp
7?Xfge%\
10 PRINT "Hello, world!" e9o(hL
20 END Cq}LKiu
k0{Mq<V*%
或在提示符输入: .' 3;Z'%"g
z*I=
?"Hello, world!":END r#d~($[93
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现代版BASIC(例如Quick BASIC): rF>:pS,`&
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Print "Hello, world!" "Do9gW
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以下的语句在Quick BASIC中同样有效: uRxo,.}c
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? "Hello,world!" kYmkKl_
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fk;
BCPL .
p<*n6E
GET "LIBHDR" jbMzcn~ehI
pn{Nk1Pl
LET START () BE `hY%<L sI
$( %h2U(=/:
WRITES ("Hello, world!*N") 1g^N7YF
$) sj0Hv d9
AL3zE=BL
G\ru%
Befunge svHs&v
"!dlrow olleH">v n;/yo~RR
, Z_ak4C
^_@ x_s9DkX
[;83
IoU}
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:
Brainfuck P)7SK&]r;=
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< cOxF.(L
+++++++++++++++.>.+++.------.--------.>+.>. gR?=z}`@p
305()
jaFBz&P/#
C NcwZ_*sqj
#include <stdio.h> W7_X=>l
#L`@["
int main(void) j2k,)MHu!x
{ QUH USDT
printf("Hello, world!\n"); <t.yn\G-w
return 0; m!tB;:6
} Go=MG:`
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sJw#^l
C++ CM!bD\5
#include <iostream>
~%bz2Pd%
gY=nU,;
int main() Fnzv&
{ L:}hZf{p*
std::cout << "Hello, world!" << std::endl; (w6 024~
return 0; LS?3 >1g
} jLM1~`&
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q~T*R<S
C++/CLI !c[?$#W4
int main() nulVQOj|
{ '[I?G6
System::Console::WriteLine("Hello, world!"); 69p>?zn
} OtBVfA:[
R]/3`X9!d>
qa.nm4"6+
C# (C Sharp) +%UfnbZ
class HelloWorldApp /hQTV!\u
{ 0h_ 9
public static void Main() <V5(5gx
{ 9B{,q6
System.Console.WriteLine("Hello, world!"); wJNiw)C
} -2{NI.-Xd
}
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bLhTgss](
;w a-\Z
COBOL l#Ipo5=
IDENTIFICATION DIVISION. 9l]+rs+
PROGRAM-ID. HELLO-WORLD. HcavA{H
}i ^]uW*h
ENVIRONMENT DIVISION. B8:G1r5G/
gp`$/ci
DATA DIVISION. ~a^mLnY@
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PROCEDURE DIVISION. F w)#[
DISPLAY "Hello, world!". 6c$ so
STOP RUN. $BXZFC_1S
qRZv[T%*Q
+vIpt{733
Common Lisp anxgD?<+B
(format t "Hello world!~%") I}q2)@
@@-n/9>vs
jAie[5
DOS批处理 MX2]Q
@echo off iVTC"v
echo "Hello, world!" 07P/A^Mkx
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LP-~;
Eiffel %JF^@\E!|
class HELLO_WORLD p.A_,iE
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creation 6!*be|<&
make IW?).%F
feature U5\^[~vW
make is DvB!-|ek
local O2g9<H
io:BASIC_IO ;h<(vc3@f
do zo6|1xq
!!io z$4g9
io.put_string("%N Hello, world!") zl^ %x1G
end -- make YcOPqvQ
end -- class HELLO_WORLD O]3$$uI=QE
=PYfk6j9
Y3=5J\d!a
Erlang n("Xa#mY[
-module(hello). lR5[UKr
-export([hello_world/0]). X6)%2TwO
iO 9.SF0:
hello_world() -> io:fwrite("Hello, World!\n"). .ZQD`SRrI
)eIC5>#.
+O"!*
Forth 6B`XHdCq
." Hello, world!" CR xY4g2Q
J
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8?LsV<
Fortran Oy
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WRITE(*,10) v=5H,4UMA
10 FORMAT('Hello, World!') Z*/{^ zsE
STOP PkX4 !
END *U>"_h T0
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HTML f#mNx
<HTML> 7>.d*?eao\
<HEAD> 3 @a hN2
<TITLE> Hello World! </TITLE> y_mTO4\C2
</HEAD> -&q@|h'
<BODY> 3PkVMX
<p>Hello World!</p> f euATL]
</BODY> ,Tp:. "
</HTML> 8u8-:c%{
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MrjgV+P}[
HQ9+ 5"sd
H +pUG6.j%
]2E#P.-!b
+MZsL7%
INTERCAL GmhfBW?
PLEASE DO ,1 <- #13 P* X^)R
DO ,1 SUB #1 <- #238 oZ,J{I!L
DO ,1 SUB #2 <- #112 gGZ-B<
DO ,1 SUB #3 <- #112 5 EhOvt8
DO ,1 SUB #4 <- #0 3JYhF)G
DO ,1 SUB #5 <- #64 6-E>-9]'E
DO ,1 SUB #6 <- #238 VAW:h5j2@
DO ,1 SUB #7 <- #26 r&%TKm^/
DO ,1 SUB #8 <- #248 M(
w'TE@
DO ,1 SUB #9 <- #168 O06 2c)vIY
DO ,1 SUB #10 <- #24 4y*"w*L
DO ,1 SUB #11 <- #16 Nk63F&J7e
DO ,1 SUB #12 <- #158 *^y,Gg/
DO ,1 SUB #13 <- #52 `D/<*e,#
PLEASE READ OUT ,1 W&~\@j]!D
PLEASE GIVE UP =[JstiT?E
ycq+C8J+Ep
n(uzqd
Java 4Jn+Ot.,d
public class Hello [>$?/DM
{ E)3Ah!
public static void main(String[] args) e5AZU7%.
{ \LG0
System.out.println("Hello, world!"); |N5r_V
} ~=GwNo_
} UuS6y9@v
dNu?O>=
bv^wE,+?o
JSP f9K+o-P.h
<% o5B]? ekpq
out.print("Hello, world!"); 6Y`rQ/F
%> 7Pe<0K)s(
!zVjbYWY
k"3@G?JY
MIXAL ;!S i_b2
TERM EQU 19 the MIX console device number @.&KRAZ
ORIG 1000 start address jn
+*G<NJ
START OUT MSG(TERM) output data at address MSG t|urvoz
HLT halt execution ~6A;H$dr
MSG ALF "MIXAL" Sw.k,p*r
ALF " HELL" _u3%16,o
ALF "O WOR" 2P/ Sq
ALF "LD "
F/SYmNp
END START end of the program q2b>Z6!5
8vkCmV
>,x&L[3
Nuva 'yo-`nNFD
<..直接输出..> $^e(?Pq
Hello, world! 4A`U [r_>D
3xk-D &"
<..或者..> P3!JA)p6a
`pb=y}
<. D\^mh{q(
// 不带换行 5BJn_<
? "Hello, world!" H Y~[/H+:
D&o~4Qvc]
// 或者 f
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7@R^B =pb
// 带换行 {SF'YbY
?? 'Hello, world!' ;Q8`5h
.> =pZ$oTR
<a&w$Zc/
(A )f
r4
OCaml {[4.<|26
let main () = o)f$ 7.
print_endline "Hello world!";; tkYPfUvTE
`>4"i+NFF8
5g%D0_e5
Pascal m\oxS;fxWi
program Hello; ;m=k
FZ?
begin 2KlVj]!7
writeln('Hello, world!'); <(t{C8>g%
end. mlYkn
bt*
o@ m7@$7
Perl \[G"/]J
#!/usr/local/bin/perl ]z!Df\I
print "Hello, world!\n"; Kv)Kn8df
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SdF+b+P]
PHP d\R "?Sg
<?php 1#3eY?Nb
print("Hello, world!"); K]1|#`n
?> n&!q9CR`
~Ede5Vg!!2
#@' B\!<@=
Pike )(OGo`4Qz
#!/usr/local/bin/pike T/0cPn0>
int main() U;A,W$<9
{ NoMlTh(O
write("Hello, world!\n"); v.ow`MO=;
return 0; . HN4xL
} 6i;q=N$'
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7p
LSR0yCU
PL/I bXvriQ.UH
Test: procedure options(main); EERCb%M8Z
declare My_String char(20) varying initialize('Hello, world!'); u+y3(0
put skip list(My_String); JqUft=p5
end Test; iSX HMp4V
baBPf{<
Q;ZV`D/FA
Prolog e7y,zcbv
goal <isU D6TC
write("hello,world!"). ._]*Y`5)d
m70AWG
Aj]/A
Python Lf:#koaC
#!/usr/local/bin/python guVuO
print "Hello, world!" ,k1ns?i9KH
p-m\0tQ
G)?j(El
REXX <00nu'Ex1v
say "Hello, world!" R_9M-RP6*
]*U+nG
#)m[R5g(
Ruby 62kA(F0e,
#!/usr/bin/ruby XTA:Y7"O
print "Hello, world!\n" H2xDC_Fs
V*r/0|vd
}+}Cl T
Scheme L{GlDoFk
(display "Hello, world!") @#*{*
S8
(newline) )Y&B63]B
RD0*]4>]
G*=&yx."E
sed (需要至少一行输入) KzX)6|g{"
sed -ne '1s/.*/Hello, world!/p' i03=Af3
n^rbc;}
!acuOBv,
Smalltalk h+7U'+|%A
Transcript show: 'Hello, world!' lKf kRyO_S
nVr V6w
PbY.8d%2/k
SNOBOL x?]fHin_
OUTPUT = "Hello, world!" ul
b0B"
END MR: H3
txm6[Io
'f0R/6h\3s
SQL ]<ay_w;
create table MESSAGE (TEXT char(15)); mE=Tj%+x
insert into MESSAGE (TEXT) values ('Hello, world!'); 2"k|IHs1
select TEXT from MESSAGE; H@1qU|4
drop table MESSAGE; -GCU6U|
R5mb4
V6+:g=@U-l
Tcl 4jlwu0L+
#!/usr/local/bin/tcl BpGyjoJ2
puts "Hello, world!" tk)}4b^\%j
V3 T.EW
h#Mx(q
TScript 3''Uxlo\
? "Hello, world!" A/&u/?*C
\acGSW
.c
ny!80I
Turing 8Ht=B,7T
put "Hello, world!" J*zQ8\f=}
uhv_'Q
Z"KrirZ
UNIX-style shell cmYzS6f,7
程序中的/bin/sh可改为您使用的shell VD $PoP
%{UW!/
#!/bin/sh )Jw$&%/{1
echo 'Hello, world!' oLtzPC
[S-#}C?~
;\f0II3
GUI +;)Xu}
~OLyG$JJ
Delphi WRRR "Q$
program HelloWorld; !b+!] 2~g}
uses P(o>UDy
Dialogs; T!pA$eE
begin :o87<)
_F
ShowMessage('Hello, World!'); +;*4.}
end. ^jcVJpyT@R
(LMT '
4N1)+W8k*
Nuva
;5
<. a[,p1}!_
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) &LG|YvMY6
.> eYn/F~5-
f+.sm
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Visual Basic Jh36NE8r
MsgBox "Hello, world!" 0W_u"UY$c
'或者 ,1.Td=lY$
Print "Hello, world!" w_;$ahsu~
Lo Y*,Aa&
(=Oo=8\
Visual FoxPro pV!WZUfg
? "Hello, world!" 2|(lKFkQ
"\]]?&
eht>4)
X11 ;>fM?ae5
用一个程序 snNB;hkj
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xmessage 'Hello, world!' *(XGNp[0
bPkz= ^-
用C++和gtkmm 2 pB]*cd B?
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#include <iostream> Q ~n%c7
#include <gtkmm/main.h> 3hEbM'L
#include <gtkmm/button.h> KdzV^6K<c
#include <gtkmm/window.h> >wFn|7\)s>
using namespace std; 'c]Pm,Ls
9l |*E
class HelloWorld : public Gtk::Window ,|;\)tT
{ &m]jYvRc
public: Q4Qf/q;U
HelloWorld(); k'sPA_|
virtual ~HelloWorld(); _EP~PW#J
protected: T.B7QAI. H
Gtk::Button m_button; wbk$(P'gN
virtual void on_button_clicked(); ytb1h Fs
}; S)'&+HamI
ELg$tc
HelloWorld::HelloWorld() : m_button("Hello, world!") sXT8jLIf
{ +tG'
set_border_width(10); \.GA"_y
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 1=z\,~b
add(m_button); CL?=j| Ea
m_button.show(); C*11?B[
} '$z@40u
i[z#5;x+<
HelloWorld::~HelloWorld() {} U'Y,T$Q
ttt4h
void HelloWorld::on_button_clicked() NF-@Q@
{ 4af^SZ)l
cout << "Hello, world!" << endl; `D$RL*C;M`
} b&d4(dk
*iyc,f^w
int main (int argc, char *argv[]) jR+kx:+
{ NSR][h_
Gtk::Main kit(argc, argv); #BgiDLh
HelloWorld helloworld; Adfnd
Gtk::Main::run(helloworld); V^><
=DNE
} Hq?dqg' %~
g:6`1C
HV]u9nrt#
Java u?>8`]r
import java.awt.*; 64<*\z_
import java.awt.event.*; q$`>[&I~)
9/I
xh?
public class HelloFrame extends Frame Sw? EF8}[
{ wS
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HelloFrame(String title) [ L
' >
{ 6JRFYgI
super(title); ivt ~S
} v_pFI8Cz)
public void paint(Graphics g) 0xaK"\Q
{ Sogt?]HB$
super.paint(g); `_]Ul I_h
java.awt.Insets ins = this.getInsets(); jz>b>;
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); vfc,{F=Q
} 'e$8
IZm
public static void main(String args []) `7?EE1o
{ Q~rE+?n9F
HelloFrame fr = new HelloFrame("Hello"); 41Ab,
m6A\R KJ'
fr.addWindowListener( 6.[3N~pq
new WindowAdapter() HXPq+
{ R+=wSG ]
public void windowClosing(WindowEvent e) YTr+"\CkA
{ am7~
System.exit( 0 ); yb0Mn*X+
N
} P{: 5i%qC
} k%aJ%(
); b d C
fr.setResizable(true); 8,e%=7h_e
fr.setSize(500, 100); dOKe}?}==
fr.setVisible(true); Q|U
[|U
} kQn}lD
} Lzcea+*uw
6*
0vUy*"
>Nx4 +|
Java Applet "3_GFq
Java Applet用于HTML文件。 c'5ls7?}O{
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HTML代码: dx$+,R~y
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