“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。 H)ud?vB6
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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》。 UBLr|e>dQE
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以下是用不同语言写成的Hello World程序的几个例子: GU([A@;
Ada z;J"3kM
with Ada.Text_Io; use Ada.Text_Io; }CIH1q3P
procedure Hello is JUHmIFjZ
begin 9rf6,hF
Put_Line ("Hello, world!"); 'H0uvvhOp
end Hello; k+t?EZ6L
)w4i0Xw^C:
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汇编语言 -XRn%4EX?
\QGh@AQp"
x86 CPU,DOS,TASM Y{ijSOl3
MODEL SMALL 49W@?:b
IDEAL N2#Wyt8MC
STACK 100H 5<^$9('
C8W#$a
DATASEG oc7&iL
HW DB 'Hello, world!$'
aJdd2,e
H,u {zU')
CODESEG %-1-y]R|
MOV AX, @data m:SG1m_6
MOV DS, AX VKqIFM1b
MOV DX, OFFSET HW #ue WU
MOV AH, 09H oR}cE
Sr
INT 21H i&= I5$
MOV AX, 4C00H Pqu]?X
INT 21H > mk>VM
END (E[c-1s
]Dec/Nnj
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x86 CPU,GNU/Linux,NASM <n? cRk'.
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). '{*{
;Enter this into "hello.asm" then type: _UI*W&*
;"nasm -f elf hello.asm" xq$(=WPI
;"ld hello.o -o hello" 69N/_V
;"./hello" >xsbXQ>.
h}0}g]IUx
section .data ;data section declaration o^+2%S`]
msg db 'Hello World!',0AH 2@~.FBby7@
len equ $-msg ;string length +Np[m$Z*
MkLXMwuQ&
section .text ;code section declaration kD;1+lNz
global _start ;entry point (start of execution) wIQ~a
_start: mov edx,len ;string length Cw$0XyO
mov ecx,msg ;string start n/9.;9b$I
mov ebx,1 ;file handle: stdout 1*U)\vK~
mov eax,4 ;sys_write UI2TW)^2
int 80h ;kernel system call /oL&
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pW5ch"HE
mov ebx,0 ;return value Z uFk}R"x
mov eax,1 ;sys_exit ?TWve)U
int 80h ;kernel system call *^aEUp6&
e%[0
NVo
!$n@-
x86 CPU,Windows,MASM32 /~~A2.=.
.386 Aqy y\G;
.model flat,stdcall 3V uoDmG
option casemap:none O"^3,-
;Include 文件定义 C fs2tN
include windows.inc vG'6?%38
include user32.inc
3-~*
includelib user32.lib nwS @r
include kernel32.inc L!;"73,&(8
includelib kernel32.lib A:b(@'h
;数据段 I%(YR"
.data NTWy1
szCaption db 'A MessageBox!',0 aC90IJ8^
szText db 'Hello,world!',0 P K+rr.k]
;代码段 0Wkk$0h9
.code (1IYOlG4
start: #)r^ZA&E
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK JkShtLEr
invoke ExitProcess,NULL 2NMg+Lt8v
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> / <C{$Gu
end start IN8G4\r
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u
AWK Yyx sj9
BEGIN { print "Hello, world!" } zEVQ[y6BcM
zsM2R"[X
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BASIC PfR|\{(
传统版BASIC(例如GWBASIC): v*";A
;NMv>1fI
10 PRINT "Hello, world!" y`,;m#frT
20 END jFDVd;#CS
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或在提示符输入: 9| g]M:{
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t
?"Hello, world!":END l*>,K2F
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现代版BASIC(例如Quick BASIC): *"nN To
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Print "Hello, world!" lfw|Q@
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以下的语句在Quick BASIC中同样有效: x{O) n
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? "Hello,world!" :
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n1U! od
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BCPL X L3m#zW&
GET "LIBHDR" J Bgq2
R 7h^
@
LET START () BE [I?[N.v
$( Iq?n*P$
WRITES ("Hello, world!*N") 9])Id;+91
$) ,<=gPs;x
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r.q*S4IS.m
Befunge Qz"+M+~%&
"!dlrow olleH">v 3D-0
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, ^sKdN-{
^_@ (_%l[:o 6
`# U<'$
"XQ3mi`y
Brainfuck =Vm3f^
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 5e3p9K`5
+++++++++++++++.>.+++.------.--------.>+.>. gvFJ~lL
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=2t=Zyp0Y
C Kf-XL),3l
#include <stdio.h> o|$r;<o3R
aUF{57,<
int main(void) eQz.N<f"
{ c/7}5#Rs
printf("Hello, world!\n"); h`dHk]O
return 0; ^g|j4N
} [_eT{v2B4
ppo.# p0w
%+htA0aX
C++ -{}(U
#include <iostream> ]=o1to-
*>/w,E]
int main() Lv?jg?$
{ H u9nJ
std::cout << "Hello, world!" << std::endl; <0VC`+p<)
return 0; xw}rFY$
} blLl1Ak
+DG-MM%\
`_f&T}]
C++/CLI Kton$%Li
int main() 8.G<+.
{ `$Um
System::Console::WriteLine("Hello, world!"); q*Oj5;
} 4{Q$^wD+.
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?0'e_s
C# (C Sharp) *LMzq9n3o
class HelloWorldApp r$v\ \^?2
{ Wks zNh
public static void Main() *8Su:=*b
{ &zd@cr1
System.Console.WriteLine("Hello, world!"); b*W,8HF 4,
} 7;c^*"Ud
} nuDu
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kh@O_Q`j
COBOL s2(7z9jR
IDENTIFICATION DIVISION. ?2_h.
PROGRAM-ID. HELLO-WORLD. =;GmLi3A
q %j8Js
ENVIRONMENT DIVISION. _M&n~ r
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DATA DIVISION. ZeY|JH1
}.(DQwC}1k
PROCEDURE DIVISION. z;?ztpa@
DISPLAY "Hello, world!". CDF;cM"td
STOP RUN. kL8E#
q{Gh5zg5O
'%ByFZzi
Common Lisp EXF]y}n
(format t "Hello world!~%") _xH<R
l-cBN^^
pHx$
DOS批处理 [m4M#Lg\0
@echo off Ie
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echo "Hello, world!" @{UUB=}9
e|W;(@$<
H0 Zo.Np
Eiffel j D*<M/4
class HELLO_WORLD /NjBC[P
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931|
creation *|j4>W\J
make s FJ:09L|
feature *- ~GVe
make is +8W5amk.P|
local N
p*T[J
io:BASIC_IO vz#-uw,O:
do HL]J=Gh
!!io pacD7'1{
io.put_string("%N Hello, world!") |'&$VzA
end -- make 5Ok3y|cEx
end -- class HELLO_WORLD x4PzP
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#?+[|RS|
Erlang PjX V.gz
-module(hello). N34-z|"q
-export([hello_world/0]). FZ RnIg
u Fw1%
hello_world() -> io:fwrite("Hello, World!\n"). XZ{rKf2
e v0>j4Q
8ki3>"!A
Forth 6;\1bP?
." Hello, world!" CR
0Gc:+c7{
$m~&| s
qou\4YZ
Fortran ~QlF(@ue
WRITE(*,10) #AP;GoIf"j
10 FORMAT('Hello, World!') Z m%,L$F*L
STOP OiXO<1'$
END .gGO+8[N*
mn=b&{')e
oH&@F@r:+
HTML Aqmw#X
<HTML> O9- `e
<HEAD> <wb6)U.
<TITLE> Hello World! </TITLE> -"S94<Y
</HEAD> 0:71Xm
<BODY> `R
xCs`
<p>Hello World!</p> &;pM<h
</BODY> ? %8%1d
</HTML> *U6+b
;du},>T$n
/\<x8BJ
HQ9+ F-b]>3r
H 'K02T:\iZ
(3$DUvx7
^fe,A=k~1
INTERCAL _68vSYr
PLEASE DO ,1 <- #13 IY8<^Q']
DO ,1 SUB #1 <- #238 i].E1},%
DO ,1 SUB #2 <- #112 SPRTJdaC9
DO ,1 SUB #3 <- #112 LC##em=Y
DO ,1 SUB #4 <- #0 p-_9I7?
DO ,1 SUB #5 <- #64 E3Y0@r
DO ,1 SUB #6 <- #238 8m=R"
%h
DO ,1 SUB #7 <- #26 Cse`MP
DO ,1 SUB #8 <- #248 ?>{u@tYL
DO ,1 SUB #9 <- #168 T@{ab1KV
DO ,1 SUB #10 <- #24 R) :Xs .
DO ,1 SUB #11 <- #16 *k; bkd4x
DO ,1 SUB #12 <- #158 <`"
DO ,1 SUB #13 <- #52 z/h]Jos
PLEASE READ OUT ,1 ,u^{zYoW
PLEASE GIVE UP rv(N0p/
1$.svR
/n(0w`
Java `p9N| V
public class Hello V sxI
{ [;7zg@Sa
public static void main(String[] args) 4i{Xs5zk
{ nA_'jl
System.out.println("Hello, world!"); Zk lpnL*!
} ^'`(E_2u
} i!8"T#
ME0u|_dPjz
T[xIn+w
JSP @VW1^{.do^
<% 52j3[in
out.print("Hello, world!"); OI6Mx$
%> RQ[/s
lg
RCYv 2=m>Q
6nE/8m
MIXAL 6;:D!},'c
TERM EQU 19 the MIX console device number .%7Le|Fb"
ORIG 1000 start address g(X`.0
START OUT MSG(TERM) output data at address MSG <QFayZ$
HLT halt execution \-]tvgA~&
MSG ALF "MIXAL" n.a2%,|v
ALF " HELL" H"^9g3U
ALF "O WOR" f OR9 N/
ALF "LD " u&c%L0)E&
END START end of the program ?B;7J7 T
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m:`M&Xs&
Nuva - E GZ
<..直接输出..> %X.g+uu
Hello, world! {wA8!5Gu
w0Nm.=I-
<..或者..> ,D*bLXWh
xR%NiYNQz
<. [^ r8P:Ad
// 不带换行
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? "Hello, world!" zI,Qc60B
Y DHP-0?
// 或者 HyWR&0J
'" %0UflJS
// 带换行 <`=Kt[_BQ
?? 'Hello, world!' VVAc bAGJ
.> HBvyX`-
-Z:x!M[Xr
QN$s%&O
OCaml &PL=nI\)
let main () = Rh)XYCM
print_endline "Hello world!";; +%,oq]<[,
LI3L~6A>
N0^SWA|S
Pascal :ChXzZ
program Hello; a}f/<-L
begin 7?uDh'utt
writeln('Hello, world!'); +x`pWH]2
end. =oh%-Sh:
XKZsX1=@R
i~v[3e9y7
Perl s#aj5_G
#!/usr/local/bin/perl ~' 955fK>
print "Hello, world!\n"; =`|BofR
Gv dok<o
/D;ugc*3
PHP :vEfJSA
1<
<?php E:/!]sm!
print("Hello, world!"); 9'sZi}rT
?> Rrry;Hr
:w5g!G?z
^?(#%~NS
Pike }za pN
v
#!/usr/local/bin/pike Y7g%nz[[
int main() ,4'y(X<R
{ ;qUB[Kw
write("Hello, world!\n"); ;T0X7MNx
return 0; ^&mrY[;S
} c-(dm:
H<fi,"X^
# }}6JM
PL/I r^msJ|k8[
Test: procedure options(main); Hc>yZ:c;
declare My_String char(20) varying initialize('Hello, world!'); @|t]9
put skip list(My_String); GXD<X_[
end Test; sUc[!S:/
R\7r!38
^{=UKf{
Prolog B[7,Hy,R
goal . 70=xH
write("hello,world!"). nIlTzrf6
_6h.<BR
{ ?jXPf
Python ]R}(CaT1
#!/usr/local/bin/python yl@Nyu
print "Hello, world!" S _U |w9q
BxV>s+o&]
u
ynudO
REXX n CX{tqy
say "Hello, world!" eXnSH$uI
$,/E"G`
wy:Gy9\
Ruby '-N5F
#!/usr/bin/ruby 3o>JJJ=]
print "Hello, world!\n" ^W@8KB
;P ju O
sxRKWM@4
Scheme GJQ>VI2cY
(display "Hello, world!") fDW:|%{Y,
(newline) 4\|Q;@f
d(V4;8a0
(X\]! 'A
sed (需要至少一行输入) :
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sed -ne '1s/.*/Hello, world!/p' L?|}!
`w>D6K+
v,QvCozOz
Smalltalk l/nBin&YGv
Transcript show: 'Hello, world!' Vrlqje_Q
tw
zV-8\
RR+kjK?
SNOBOL -u"|{5? '
OUTPUT = "Hello, world!" w{L9-o3A
END
[tt{wl"E
??.aLeF&
8`)* ?Q9~
SQL k+"7hf=C|
create table MESSAGE (TEXT char(15)); Gukvd6-g9b
insert into MESSAGE (TEXT) values ('Hello, world!'); Srmr`[i
select TEXT from MESSAGE; ' ,]Aj!q
drop table MESSAGE; L'KKU4zj
Qt>kythi
0$-|Th:o
Tcl zx]r.V
#!/usr/local/bin/tcl 9a]o?>`E
puts "Hello, world!" ,aS+RJNM
1c]{rO=taN
u]O}Ub`
TScript kjsj~jwvv
? "Hello, world!" -
(((y)!
~Yl.(R
TTa3DbFp%
Turing Rm)hgmZ
put "Hello, world!" /!t:MK;
DxN\ H"
"m6G;cv
UNIX-style shell 80g}<Lwc
程序中的/bin/sh可改为您使用的shell o(?9vU
h/:LC 7
#!/bin/sh 9yTDuhJ6
echo 'Hello, world!' Ho*B<#&(A|
NCzabl
@@\px66
GUI HRbv%
<<gW`KF
Delphi [hot,\+f
program HelloWorld; <wFmfrx+v
uses ONpvx5'#
Dialogs; 3w p@OF_
begin BKI-Dh
ShowMessage('Hello, World!'); q)C
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end. zx:;0Z:S6>
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c'VCCXe
Nuva $>_`.*I/
<. BT0;I
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Uj 4HVd
.> 1uKIO{d@
,+h<qBsV@
>jTiYJI_M
Visual Basic rc>}3?o
MsgBox "Hello, world!" FcZ)^RQ4G
'或者 reYIF*
Print "Hello, world!" !UPB4I
WnOYU9;%
A@d 2Ukv
Visual FoxPro Wql=PqF
? "Hello, world!" vNdX
jg%mWiKwK7
@44*<!da
X11 jG& 8`*|*
用一个程序 P<[)
qq@;
@~7au9.V=X
xmessage 'Hello, world!' =2rdbq6R
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用C++和gtkmm 2 v;?W|kJ.u
uhaHY`w
#include <iostream> Ywt9^M|z;
#include <gtkmm/main.h> n|Y}M]u,
#include <gtkmm/button.h> G#NbLj`h
#include <gtkmm/window.h> ? ][/hL@[
using namespace std; 8
ks\-38n1
!~7lY]_U
class HelloWorld : public Gtk::Window &"A:_5AU
{ zd$iDi($
public: In:V.'D/>t
HelloWorld(); 0%HAa|L,,
virtual ~HelloWorld(); KC9VQeSc
protected: Wq 1OYZ,
Gtk::Button m_button; YaQ5Z-c
virtual void on_button_clicked(); d0%Wz5Np
}; 4~oRcO8!Y
=1!.g"0
HelloWorld::HelloWorld() : m_button("Hello, world!") wM;=^br
{ gwB0/$!4"
set_border_width(10); 1_9Ka
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m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); #ifjQ7(:
add(m_button); wNFx1u^/)
m_button.show(); >XuPg(Ow
} }9z$72;Qdq
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HelloWorld::~HelloWorld() {} Q=[ IO,f
HKOSS-`5
void HelloWorld::on_button_clicked() 2t?>0)*m
{ wXdt\@Qr
cout << "Hello, world!" << endl; D]'8BS3
} n
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*N{k#d/
int main (int argc, char *argv[]) u!It';j
{ {Ngut
Gtk::Main kit(argc, argv); pxyFM@Z](
HelloWorld helloworld; Ho&f[T(
Gtk::Main::run(helloworld); S @!z'$&
} aDLlL?r3
j2:9ahW
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Java s6;ZaU
import java.awt.*; tdu:imH~
import java.awt.event.*; A+\rGVNH'S
n1R{[\ >1
public class HelloFrame extends Frame S&cN+r
{ 5yV>-XT+-
HelloFrame(String title) mQU t 'j4
{ .]<iRf[\[
super(title); Gcxz$.(
} C4dCaiX
public void paint(Graphics g) G$/Qcr6W<
{ Rf=-Q
%
super.paint(g); $|!3ks
java.awt.Insets ins = this.getInsets(); qI74a F
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Pum&