“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。 edk9Qd9
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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》。 {)9HS~e T
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以下是用不同语言写成的Hello World程序的几个例子: {&u7kWD|
Ada T^;Jz!e
with Ada.Text_Io; use Ada.Text_Io; ss@}Dt^
procedure Hello is }6,bq`MN
begin lWw!+[<:q1
Put_Line ("Hello, world!"); u m2s^G
end Hello; exEld
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汇编语言 zn;Hs]G
HT=Am
x86 CPU,DOS,TASM Yn]yd1
MODEL SMALL )LrCoI =|
IDEAL ( WtE`f;Q
STACK 100H +\[![r^P
`e'o~oSu
DATASEG pMZf!&tM
HW DB 'Hello, world!$' $F`<&o
)bXx9,VL
CODESEG Fif^V
MOV AX, @data h)l&K%4;
MOV DS, AX qb&NS4#
MOV DX, OFFSET HW eTRx 6Fri(
MOV AH, 09H -WBz]GW4r
INT 21H o7a6 )2JK
MOV AX, 4C00H mc=!X
INT 21H .Jat^iFj0
END mx(%tz^t
QDgEJ%U-
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x86 CPU,GNU/Linux,NASM Nk7e iQ
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). MD
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;Enter this into "hello.asm" then type: | ]!Ky[P
;"nasm -f elf hello.asm" $x_52 j\j
;"ld hello.o -o hello" ,{ L;B
;"./hello" $aPHl
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section .data ;data section declaration LXu"rfp
msg db 'Hello World!',0AH %v+fN?%x,d
len equ $-msg ;string length ]1|Ql*6y,
h[ZN >T
section .text ;code section declaration A;WwS?fyQ
global _start ;entry point (start of execution) s@)"IdSA(
_start: mov edx,len ;string length EfBVu
mov ecx,msg ;string start !k= 0X\5L
mov ebx,1 ;file handle: stdout azDC'.3{p
mov eax,4 ;sys_write BUA6(
int 80h ;kernel system call n:^"[Le
5ih"Nds[H
mov ebx,0 ;return value HMS9y%zl/
mov eax,1 ;sys_exit :OQ:@Yk
int 80h ;kernel system call $,QpSK`9i
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-w
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x86 CPU,Windows,MASM32 IL>/PuZku
.386 ,F`KQ
)\"
.model flat,stdcall ~Riu*<
option casemap:none 01{r^ZT`RH
;Include 文件定义 ?y*+^E0
include windows.inc |N=@E,33
include user32.inc [
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includelib user32.lib e9Ul A
include kernel32.inc Il^\3T+
includelib kernel32.lib d7_ g
u
;数据段 0n<(*bfW
.data w^dueP7J
szCaption db 'A MessageBox!',0 $uFh$f
szText db 'Hello,world!',0 Q{l*62Bx
;代码段 v<7Gln
.code D _bkUR1
start: +{C9uY)$vf
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK #[U9(44,
invoke ExitProcess,NULL fr'huvc
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Hr<C2p^a
end start +F7<5YW&(
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AWK :<t{ =0G
BEGIN { print "Hello, world!" } 8G5)o`
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BASIC te\h?H
传统版BASIC(例如GWBASIC): 7dlKdKH
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10 PRINT "Hello, world!" rZ!Yi*? f
20 END jI{~s]Q
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或在提示符输入: &weY8\HD
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?"Hello, world!":END ,\S pjE
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现代版BASIC(例如Quick BASIC): 1~R$$P11[9
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Print "Hello, world!" sMz^!RX@
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以下的语句在Quick BASIC中同样有效: dDqr
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? "Hello,world!" CCW%G,$U9
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b@2Cll#
BCPL &PRx,G5
GET "LIBHDR" F%PwIB~cy
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LET START () BE uOG-IHuF
$( 43J\8WBn@
WRITES ("Hello, world!*N") 42V,PH6o
$) X/E7o92\
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|%'6f}fnE
Befunge "+n4 c'
"!dlrow olleH">v w\o)bn
, +
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^_@ (Pk"NEP
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X!7VyE+n
Brainfuck ] Wx>)LT
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< IP30y>\
+++++++++++++++.>.+++.------.--------.>+.>. S]e j=6SP
d)04;[=
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C Cdp]Nv6
#include <stdio.h> 4?>18%7&
I!$jYY2
int main(void) Ic[}V0dk
{ i<4>\nc
printf("Hello, world!\n"); pKt-R07*
return 0; )YzH k ;(
} XMN?;Hj>
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ET,Q3X\Oe
C++ y:[BP4H ?y
#include <iostream> %s$rP
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int main() zH)cU%I@.
{ JcTp(fnW.~
std::cout << "Hello, world!" << std::endl; vix&E`0yD
return 0; V&Xi> X8
} y4xT:G/M
E /fw?7eQ
DR
k]{^C~
C++/CLI -A/ds1=;
int main() K<@[_W+
{ K-J|/eB
System::Console::WriteLine("Hello, world!"); La"o)L +m_
} @gt)P4yE
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R*s* +I
C# (C Sharp) V#ndyUM;
class HelloWorldApp kCima/+_
{ pOqGAD{D$
public static void Main() .MDYGWKt
{ 7"ylN"syZ
System.Console.WriteLine("Hello, world!"); jW-;4e*H=V
} J0^{,eY<
} cPpu
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h [nH<m
COBOL 1s#yWQ
IDENTIFICATION DIVISION. n,t6v5>88
PROGRAM-ID. HELLO-WORLD. <,jAk4
kWB, ;7
ENVIRONMENT DIVISION. Ya}T2VX
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DATA DIVISION. UdT&cG
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PROCEDURE DIVISION. +yzcx3<
DISPLAY "Hello, world!". Tr}R`6d$
STOP RUN.
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cyW;,uT)D
'oleB_B
Common Lisp B|cA[
(format t "Hello world!~%") \Ut6;
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nIf N"
DOS批处理 'UY[ap
@echo off `5~7IPl3
echo "Hello, world!" YecT 96%
hP?7zz$*j
7^ 4jcfJH
Eiffel g[/^cJHQ
class HELLO_WORLD CV '&4oq
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creation ; ;<J
x.
make l`SK*Bm~<
feature "$GK.MP5
make is 5^\m`gS
local $fj])>=H
io:BASIC_IO _ 1sP.0 t
do &k1/Z*/
!!io r)V Lf#3B
io.put_string("%N Hello, world!") ]Z_$'?f
end -- make l;Q
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end -- class HELLO_WORLD ylk{!
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Erlang #C4|@7w%
-module(hello). :]'q#$!
-export([hello_world/0]). p~h4\.*`
t) LU\!
hello_world() -> io:fwrite("Hello, World!\n"). Q/p(#/y#b
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gW kjUz)
Forth }d_<\
." Hello, world!" CR L#n}e7Y9
H ZPcd_(
hHpx?9O+!
Fortran GE@uOJ6H
WRITE(*,10) im=5{PbJ^
10 FORMAT('Hello, World!') /mc*Hc8R8
STOP @8|Gh]\P
END ]GNh)
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pDGT@qJ
HTML 3c b[RQf
<HTML> =nzFd-P
<HEAD> %*6RzJO6
<TITLE> Hello World! </TITLE> V"O9n[ |
</HEAD> yr5NRs
<BODY> )!i!3
<p>Hello World!</p> z=qWJQ
</BODY> `|Ey)@w
</HTML> /u=aX
H<,bq*@
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HQ9+ *6XRjq^#
H V{0%xz #
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? ~,JY
INTERCAL gwiR/(1
PLEASE DO ,1 <- #13 Tv\HAK<N
DO ,1 SUB #1 <- #238 ~
7}]
DO ,1 SUB #2 <- #112 ilv _D~|
DO ,1 SUB #3 <- #112 M|k&TTV
DO ,1 SUB #4 <- #0
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DO ,1 SUB #5 <- #64 '*4iqPR;
DO ,1 SUB #6 <- #238 )A"jVQjI%w
DO ,1 SUB #7 <- #26 JA<~xo[Q9
DO ,1 SUB #8 <- #248 gKWzFnW
DO ,1 SUB #9 <- #168
uN9e:;
DO ,1 SUB #10 <- #24 AFGwT%ZD
DO ,1 SUB #11 <- #16 KSc~GP_
DO ,1 SUB #12 <- #158 =5ug\S
DO ,1 SUB #13 <- #52 @ u+|=x];
PLEASE READ OUT ,1 ZOu R"9]
PLEASE GIVE UP )!eEO [\d
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Lyr2(^#:
Java G?<pBMy
public class Hello LJWTSf"f?
{ B7!;]'&d
public static void main(String[] args) frc{>u~t
{ E67XPvo1+@
System.out.println("Hello, world!"); E5gl ^Q?Z
} 7/?DP wbx
} "Hht
g:
9 ZGV%Tw
jn$j^51`C
JSP wWTQ6~Y%d
<% n'?4.tb
out.print("Hello, world!"); "U{,U`@?
%> pDOM:lGya
oIb)
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hO6RQ0Iv@
MIXAL 0wFh%/:
TERM EQU 19 the MIX console device number -L8YJ8J6
ORIG 1000 start address ~M*gsW$
START OUT MSG(TERM) output data at address MSG y"-{$ N
HLT halt execution 4)^vMG&
MSG ALF "MIXAL"
RL*]g*
ALF " HELL" TT7PQf >
ALF "O WOR" (B:uc_+
ALF "LD " {2:d`fqD
END START end of the program (;UP%H>
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59i]
Nuva zh%qS~8Yv
<..直接输出..> 2ce'fMV
Hello, world! G#0,CLGN^
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<..或者..> ;&
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<. 6e#wR/
// 不带换行 o,FUfO}F
? "Hello, world!" G3dhM#!
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// 或者 f=m/
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lsY `c"NW>
// 带换行 ln#\sA?iG
?? 'Hello, world!' R hio7C
.> ~^7r?<aKc
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&XQZs`41+
OCaml =/9<(Tt%m
let main () = @.ZL7$|d
print_endline "Hello world!";; io2@}xZF
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7`fY*O6
Pascal @9vvR7{P
program Hello; tOH0IE c
begin zMGzReJ
writeln('Hello, world!'); tS<h8g_
end. XWtiwf'K
nY0sb8lZJ
e+@xsn3
Perl 9p`r7:
#!/usr/local/bin/perl t$ZkdF
print "Hello, world!\n"; lzDdD3Ouc
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v[&'k\
PHP ,I`_F,
<?php m*oc)x7'
print("Hello, world!"); rzu
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?> tpYa?ZCM
eYEc^nC,c)
A1-qtAO]
Pike ZEGd4_ux
#!/usr/local/bin/pike /{X_
.fv<v
int main() 85z;Zt0{
{ cZi[(K
write("Hello, world!\n"); Rd%0\ B
return 0; KlUqoJ;"
} d#\W hRE
A[H;WKn0
C9jbv/c
PL/I 0H[L S
Test: procedure options(main); pjN:Y]
declare My_String char(20) varying initialize('Hello, world!'); *Jt8
put skip list(My_String); h|p[OecG
end Test; R1'`F{56
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:;4SQN{2
O
Prolog F=}Z51|:~
goal "HC)/)Mv@
write("hello,world!"). c7qwNs*f
H/J<Pd$p
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Python ^~l $&~
#!/usr/local/bin/python
maDz W_3
print "Hello, world!" *#2Rvt*Ox
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hZN<Yd8:
REXX io4aYB\
say "Hello, world!" &Rp"rMeW
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[oB
e<5Y94YE
Ruby <Tx C!{<
#!/usr/bin/ruby lLCdmxbT
print "Hello, world!\n" #T \
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Scheme o:UXPAj
(display "Hello, world!") z+3 9ee
(newline) R2LK.bTVn
m:{tgcE
9+Nw/eszO
sed (需要至少一行输入) (F8AL6
sed -ne '1s/.*/Hello, world!/p' {oWsh)[x2
6[?}6gQ
sX:lE^)-z
Smalltalk YKs4{?vw
Transcript show: 'Hello, world!' 1V%'.l9
Wsm`YLYkt!
wFL3&*
SNOBOL 84M3c
OUTPUT = "Hello, world!" CLN+I'uX0
END ow.6!tl0=h
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=Od>;|]m
SQL tt4+ m>/T
create table MESSAGE (TEXT char(15)); #D)x}#V\
insert into MESSAGE (TEXT) values ('Hello, world!'); }.{}A(^YR
select TEXT from MESSAGE; iV
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drop table MESSAGE; j|K.i/
&U&%ka<*
iZ;TYcT
Tcl np6HUH
#!/usr/local/bin/tcl ]}2Ztr)zZ
puts "Hello, world!" nY^Nbh0
\9/1L?@
/cY^]VLe
TScript ($WE=biZ&
? "Hello, world!" qY# d+F,t
nb+m.X
<k]qH-v4
Turing 8(xw?|D7
put "Hello, world!" 2p:r`THvS5
N5 n>
r4;Bu<PQN1
UNIX-style shell !T'X
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程序中的/bin/sh可改为您使用的shell nq;#_Rkr
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#!/bin/sh z\.1>/Z=
echo 'Hello, world!' nyhMnp#<
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ixw(c&gL
GUI Dip*}8$o(w
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Delphi _CdROo6I
program HelloWorld; {}\CL#~y
uses GLh]G(
Dialogs; b!a
%YLL
begin ^M
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ShowMessage('Hello, World!'); BaL]mIx
end. A=`*r*
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crn k|o
Nuva CLK^ gZ
<. p4mY0Y]mP
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) f a5]a
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+1@AGJU3
Rd! 2\|
Visual Basic b5 Q NEi
MsgBox "Hello, world!" \Ph7(ik
'或者 C\Ayv)S#2
Print "Hello, world!" W_<4WG
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ty-
r&
Visual FoxPro y/R+$h(%
? "Hello, world!" j Z'&0x"U
- L~Uu^o
0HbJKix!
X11 <abKiXA"
用一个程序 a[C&e,)}
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xmessage 'Hello, world!' bK=c@GXS
PDC]wZd/
用C++和gtkmm 2 !_^g8^>2(
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#include <iostream> IZ~.{UQ
#include <gtkmm/main.h> <lo`q<q
#include <gtkmm/button.h> GqUSVQ
#include <gtkmm/window.h> )%mAZk-*;^
using namespace std; 3{3/: 7
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class HelloWorld : public Gtk::Window i6>R qP!69
{ pP\h6b+B
public: knSuzq%*
HelloWorld(); =kFuJ
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virtual ~HelloWorld(); _T]>/}}p
protected: V/bH^@,sA
Gtk::Button m_button; ~`Sle
xK|}
virtual void on_button_clicked(); [ud|dwP"
}; .,mPdVof
4<}A]BQVkJ
HelloWorld::HelloWorld() : m_button("Hello, world!") ']?=[`#NL
{ Y6VQ:glDT-
set_border_width(10); J
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m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); p\S8oHWe
add(m_button); `C'}e
m_button.show(); ct0v$ct>f
} f z%tA39m
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HelloWorld::~HelloWorld() {} E5{n?e
t _\MAK
void HelloWorld::on_button_clicked() x!?Z*v@I
{ M 9"-WIG@h
cout << "Hello, world!" << endl; 2Xgx*'t\
} NG9vml
;r!\-]5$
int main (int argc, char *argv[]) 0w3b~RJ
{
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Gtk::Main kit(argc, argv); YMu)
HelloWorld helloworld; a8JN19}D
Gtk::Main::run(helloworld); }W}G X(?P
} Y/P]5: =h
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Java HV\"T(89
import java.awt.*; jo0Pd_W8&
import java.awt.event.*; CG9ba|
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public class HelloFrame extends Frame `Zf9$K|
{ S=O$JP79
HelloFrame(String title) Wz{%"o
{ $L&BT 0
super(title); k4R4YI"jV
} 4oJ$dN
public void paint(Graphics g) +/q0Y`v
{ yW>R RE;
super.paint(g); J3&Sj{ o
java.awt.Insets ins = this.getInsets(); JS7dsO0;
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); (C\r&N