“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。 T Jp0^&Q
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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》。 5%6r,?/7KM
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以下是用不同语言写成的Hello World程序的几个例子: 2*1s(Jro
Ada e#$ZOK)`
with Ada.Text_Io; use Ada.Text_Io; L1E\^)
procedure Hello is s"\o6r
,
begin S}cm.,/w
Put_Line ("Hello, world!"); o\YF_235
end Hello; 6?c(ue iL[
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汇编语言 #0j,1NpL
xN#. Pm~
x86 CPU,DOS,TASM B]YY[i
MODEL SMALL $?u ^hMU=
IDEAL (S#4y
STACK 100H ?(CMm%(8
3#Hx^H
DATASEG @rVBL<!o,
HW DB 'Hello, world!$' `&yUU2W
OVm
$
CODESEG pJE317 p'
MOV AX, @data 4!dN^;Cb
MOV DS, AX pB;p\9A*q
MOV DX, OFFSET HW jE{2rw$ZJ?
MOV AH, 09H l`R/WC
INT 21H }Ik{tUS$
MOV AX, 4C00H >_$DKY>$`
INT 21H nn_j"Nu
END #ab=]}2W_g
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x86 CPU,GNU/Linux,NASM Gm.n@U p
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ryq95<lF
;Enter this into "hello.asm" then type: Y?z@)cL
;"nasm -f elf hello.asm" +cVnF&@$
;"ld hello.o -o hello" j5:{H4?
;"./hello" XK>/i}y
ivbuS-f=r
section .data ;data section declaration Whq@>pX8
msg db 'Hello World!',0AH ymBevL
len equ $-msg ;string length ` `A=p<W
rsR0V+(W
section .text ;code section declaration !s]LWCX+|
global _start ;entry point (start of execution) QMfa~TH#p
_start: mov edx,len ;string length [S/]Vk|4
mov ecx,msg ;string start ]64mSB
mov ebx,1 ;file handle: stdout 5Qik{cWxBq
mov eax,4 ;sys_write 6 /Apdn1[
int 80h ;kernel system call rnVh
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mov ebx,0 ;return value 8vM}moper
mov eax,1 ;sys_exit {qCmZn5
int 80h ;kernel system call WKQVT I&A.
#<bt}Tht
E
VBB:*q6
x86 CPU,Windows,MASM32 +]Y&las
.386 :hG?} [-2
.model flat,stdcall $3sS&i<
option casemap:none !0~$u3[b
;Include 文件定义 RTNUHz;{L
include windows.inc 0*"auGuX
include user32.inc XnQo0
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includelib user32.lib 0f
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2
include kernel32.inc g@.RfX=
includelib kernel32.lib M ,8r{[2
;数据段 D!~-53f@
.data ;jTP|q?|{
szCaption db 'A MessageBox!',0 hp}J_/+4n
szText db 'Hello,world!',0 B8_w3;x
;代码段 5[M?O4mi
.code Ak$ghb
start: 1@kPl[`p'
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK jl=<Q.Mm7
invoke ExitProcess,NULL 5o5y3ibQ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> )>Oip
end start +'?p $@d
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AWK ]S[zD|U%
BEGIN { print "Hello, world!" } m El*{]
m u(HNj
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BASIC W 0Q-&4
传统版BASIC(例如GWBASIC): a4X J0Tm
<w}k9(Ds
10 PRINT "Hello, world!" |8h<Ls_
20 END I -i)D
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或在提示符输入: Roy0?6O
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?"Hello, world!":END qu8i Jq
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现代版BASIC(例如Quick BASIC): Ix%h/=I
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Print "Hello, world!" LQ?J
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以下的语句在Quick BASIC中同样有效: -,et. *
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? "Hello,world!" "TKf"zc
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t#f
BCPL fEdQR->
GET "LIBHDR" FZnkQ
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LET START () BE YcGSZ0vQ
$( LGPy>,!
WRITES ("Hello, world!*N") tn;e
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$) 6z"fBF
cn=~}T@~Z
l2=.;7IV
Befunge =A<kDxqH
"!dlrow olleH">v &TSt/b/+W
, -[v:1\Vv
^_@ R5G~A{w0
Y*3qH]
}3Pz{{B&+O
Brainfuck ;'dw`)~jQ
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< &Hc8u,|
+++++++++++++++.>.+++.------.--------.>+.>. GdR>S('
9'Y~! vY
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C /Yc!m$uCW
#include <stdio.h> yEtSyb~GK
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int main(void) /9|1eSUa
{ )dG7$,g
printf("Hello, world!\n"); X^?<, Y)1.
return 0; R*E/E
} YU[93@mCh
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C++ `Qv7aY
#include <iostream> O qY8\>f-
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int main() O:RPH{D
{ G[r_|-^S
std::cout << "Hello, world!" << std::endl; 8=T;R&U^M
return 0; pQ*9)C
} %]>c4"H
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+XJj:%yt
C++/CLI KB7CO:
int main() 9<WMM)
{ f/?#
1
System::Console::WriteLine("Hello, world!"); _C&2-tnp
} -f z
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C# (C Sharp) P
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class HelloWorldApp A"\kdxC
{ R(=Lhz6R4
public static void Main() b3MgJT"mN
{
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System.Console.WriteLine("Hello, world!"); Y1H8+a5@
} 5l2Ph4(
} ,!|/|4vh
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COBOL RhnSQe
IDENTIFICATION DIVISION. bec n$R
PROGRAM-ID. HELLO-WORLD. $f*N
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ENVIRONMENT DIVISION. &'N{v@Oi)
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DATA DIVISION. yd`xmc)
v6HBO#F'V{
PROCEDURE DIVISION. 1SP)`Q
DISPLAY "Hello, world!". +e`f|OQ
STOP RUN. Iu jly f
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n wToZxHZ~
Common Lisp *&+e2itmp
(format t "Hello world!~%") 5iz]3]}%
IBcCbNs!
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DOS批处理 4Ucg<Z&%
@echo off g6IG>)
echo "Hello, world!" S WVeUL#5
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Eiffel tjBs>w
class HELLO_WORLD rC14X} X6
(8qMF{
creation 5CueD]
make >:Na^ +c
feature Y]P';C_eP
make is efy65+~GG
local >zFe)
io:BASIC_IO `g<@F^x5
do 6,G1:BV{K
!!io Ha1E /b]K
io.put_string("%N Hello, world!") Z%y>q|:
end -- make !Sy._NE`z
end -- class HELLO_WORLD _Buwz_[&
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Erlang ';hU&D;s
-module(hello). 8E&}+DR?
-export([hello_world/0]). o=_:g >5
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hello_world() -> io:fwrite("Hello, World!\n"). Yewn
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Forth ^G[xQcM73
." Hello, world!" CR & 1p\.Y
UZi^ &
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Fortran zIi|z}WJ
WRITE(*,10) NEa:
10 FORMAT('Hello, World!') &W-L`aFd0
STOP d=o|)kV
END 7cr@;%#
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HTML ;o8C(5xE|
<HTML> WW{5[;LYiB
<HEAD> :.'<ndM
<TITLE> Hello World! </TITLE> &M,a+|yuY
</HEAD> cTCo~Pk4
<BODY> l)[\TD
<p>Hello World!</p> 'C8VD+p
</BODY> "=@b>d6U+
</HTML> l~;H~h!h/
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R
5-q{
"CLoM\M)
INTERCAL ym9Z:2g
PLEASE DO ,1 <- #13 p~6/+ap
DO ,1 SUB #1 <- #238 "+/%s#&
DO ,1 SUB #2 <- #112 I 8vv
DO ,1 SUB #3 <- #112 9un]}7^
DO ,1 SUB #4 <- #0 z}.y
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DO ,1 SUB #5 <- #64 j5,1`7\7B
DO ,1 SUB #6 <- #238 B8UtD
DO ,1 SUB #7 <- #26 veAg?N<c
p
DO ,1 SUB #8 <- #248 'MRvH
lCM
DO ,1 SUB #9 <- #168 $}_N379&
DO ,1 SUB #10 <- #24 G#gUd'=M
DO ,1 SUB #11 <- #16 Oi AZA<
DO ,1 SUB #12 <- #158 -$**/~0zU
DO ,1 SUB #13 <- #52 @X4Ur+d
PLEASE READ OUT ,1 AD#]PSB
PLEASE GIVE UP V>ML-s9
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Java gKeqf-UWKJ
public class Hello NdGIH/Y;M
{ p4Cw#)BaS
public static void main(String[] args) ig<Eyr
{ [zl@7X1{_
System.out.println("Hello, world!"); _8P"/(
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} T]-yTsto
} 6E/>]3~!
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jWJq[l
JSP 5LdVcXf
<% :,gnOfV=
out.print("Hello, world!"); m^0r9y,
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mbB,j~;^6H
MIXAL g\S@@0T{0
TERM EQU 19 the MIX console device number C~4_Vc*
ORIG 1000 start address JBfDz0P
START OUT MSG(TERM) output data at address MSG mR@|] T
HLT halt execution d0Xb?-
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MSG ALF "MIXAL" TG7Ba[%
ALF " HELL" o`5p
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ALF "O WOR" ]Q,;5>#W
ALF "LD " /_<`#?5T(
END START end of the program b&[9m\AX`
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psyxNM=dN#
Nuva 7ksh%eV
<..直接输出..> .] mYpz
Hello, world! 9qN4f8R
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<..或者..> YL-/z4g
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<. _OV\W'RrA
// 不带换行 w}No ^.I*4
? "Hello, world!" 6(awO2{BP
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// 或者 D,q=?~
g?`g+:nug
// 带换行 t\~lGG-p
?? 'Hello, world!' i)9}+M5
.> pYZ6-s
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Atl`J.;G
OCaml :W]?6=
let main () = !`=ms1%U
print_endline "Hello world!";; e9e%8hL
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#:C;VAAp
Pascal ASmMj;>UM
program Hello; <"A|Xv'Q
begin ~f=~tN)hZ
writeln('Hello, world!'); jJFWPD]u
end. hoY.2 B _
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o&uO ]
Perl T'\B17
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#!/usr/local/bin/perl !OWPwBm;
print "Hello, world!\n"; xw_VK1
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n][/c_]q
PHP 3ThBy'
<?php SY\ UuZ
print("Hello, world!"); S<}2y 9F
?> ].F7.
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HR)Dz~Obw
Pike 5\93-e
#!/usr/local/bin/pike VD[x}8ei
int main() jv$Y]nf
{ RtVy^~=G
write("Hello, world!\n"); ' =MaO@ @
return 0; fxfzi{}uj
} 5`qt82Qm
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PL/I A4LGF
Test: procedure options(main); lv
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declare My_String char(20) varying initialize('Hello, world!'); 1d/-SxhZ
put skip list(My_String); AA][}lU:5
end Test; z _qy>
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EvZ;i^.8LS
Prolog *9:oTN
goal GC?X>AC:
write("hello,world!"). I9O9V[
RmS|X"zc
Z(Da?6#1
Python x._IP,vRx^
#!/usr/local/bin/python sYV7t*l
print "Hello, world!" []HMUL]"
5.gM]si
u] C/RDTH
REXX TymE(,1
say "Hello, world!" k=w;jX&;`
mk>L:+
-H1mKZDPP
Ruby 2p\CCzw
#!/usr/bin/ruby blxAy
print "Hello, world!\n" .G[y^w)w}
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Scheme 8r
'
(display "Hello, world!") .DSn
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(newline) Zgp]s+%E
[6x-c;H_4
rkhQoYZ[
sed (需要至少一行输入) dz/'
m7
sed -ne '1s/.*/Hello, world!/p' <hi@$.u_Q^
1-Fg_G}|6
[?3*/*V
Smalltalk Hw"ik6
Transcript show: 'Hello, world!' "|W .o=R
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SNOBOL /CpUq;^
OUTPUT = "Hello, world!" 3/IQ]8g"
END &tY3nr
;/i"W
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SQL pAS!;t=n,
create table MESSAGE (TEXT char(15)); rQiX7
insert into MESSAGE (TEXT) values ('Hello, world!'); EubR]ckB
select TEXT from MESSAGE; SNP.n))
drop table MESSAGE; d_9Fc"C~
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gyH'92ck
Tcl /x.TF'Z*
#!/usr/local/bin/tcl Q,Tet&in )
puts "Hello, world!" ]2G5ng' @
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TScript w?CbATQ
? "Hello, world!" 0P`wh=")
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f@l 6]z{.L
Turing ~ZU;0#
put "Hello, world!" C("PCD
A7U'>r_.
CG'NC\x5
UNIX-style shell R`=3lY;
程序中的/bin/sh可改为您使用的shell &SS"A*xg
Lm+!/e
#!/bin/sh )
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echo 'Hello, world!'
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ln.kEhQ3B
GUI $mm =$.
r`u}n
Delphi rUfW0
program HelloWorld; 3{_A zL
uses :1u>T3L.z
Dialogs; ga#,42)H
begin tb,.f3;
ShowMessage('Hello, World!'); $w%oLI@kl
end. ,2S
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J*6I@_{/U
Nuva *ggTTHy
<. >(z{1'f{
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK'])
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Visual Basic 6QdNGpN
MsgBox "Hello, world!" O%v(~&OSl
'或者 ^)N[x''a
Print "Hello, world!" hTI8hh
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Visual FoxPro X:-X3mV9{
? "Hello, world!" :NU-C!eT
s#w+^Mw$
N>`+{
X11 "M6a_rZ2W
用一个程序 FW7+!A&F
EZ #UdK_
xmessage 'Hello, world!' Y0BvN`E
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用C++和gtkmm 2 :b>Z|7g ?
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#include <iostream> n? "ti
#include <gtkmm/main.h> .G+}Kn9!
#include <gtkmm/button.h> ~l!(I-'?g
#include <gtkmm/window.h> o^RdVSkU;
using namespace std; x6HebIR+
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class HelloWorld : public Gtk::Window QxnP+U~N
{ Ary$,3X2
public: :{4G=UbAI
HelloWorld(); 6bnAVTL5
virtual ~HelloWorld(); ..FUg"sSO
protected: IZ')1
Gtk::Button m_button; "b%hAdR
virtual void on_button_clicked(); 2a.NWJS
}; wlqV1.K
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HelloWorld::HelloWorld() : m_button("Hello, world!") M)Rp+uQ
{
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set_border_width(10); xmKa8']x
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); yG&kP:k<
add(m_button); S "oUE_>
m_button.show(); <6/XE@"
} q<>2}[W
f<SSg*A;
HelloWorld::~HelloWorld() {} x+B~ t4A
dQM# -t4*
void HelloWorld::on_button_clicked() js`zQx'
{ 'G(N,vu[@
cout << "Hello, world!" << endl; oE#HI2X
} P},S[GaZ
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int main (int argc, char *argv[]) }#!o^B8
{ v ;MI*!E
Gtk::Main kit(argc, argv); _zh}%#6L
HelloWorld helloworld; 'lC"wP&$
Gtk::Main::run(helloworld); '5ky<
} XyS#6D
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Java R'dF<&Kj|
import java.awt.*; 3JW9G04.
import java.awt.event.*; fH`1dU
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public class HelloFrame extends Frame } Q1$v~
{
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