“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。 :E
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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》。 ^5j+O.zgN
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以下是用不同语言写成的Hello World程序的几个例子: @Z9X^Y+u^h
Ada (bpO>4(S
with Ada.Text_Io; use Ada.Text_Io; 88%7
procedure Hello is FKhmg&+>
begin LIzdP,^pc
Put_Line ("Hello, world!"); b
EB3#uc
end Hello; kw,eTB<;R
y.h2hv]Bc
%eK=5Er jx
汇编语言 Sg#$
B#g
SrlTwcD
x86 CPU,DOS,TASM &>Zm gz
MODEL SMALL 1%Yd ] 1c(
IDEAL -*`7Q'}%
STACK 100H b,vSE,&xP
GWb=X cx
DATASEG &<??,R14
HW DB 'Hello, world!$' ^y"
#2Ov
&Pk #v
CODESEG uY 6]rt_#a
MOV AX, @data 25e*W>SLw
MOV DS, AX S5o\joc
MOV DX, OFFSET HW 1!N|a< #
MOV AH, 09H !e>+O^
INT 21H O9%`G
MOV AX, 4C00H r7dwj
INT 21H zVEG)
Hr
END T'VZ=l[
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EI+RF{IKh
x86 CPU,GNU/Linux,NASM m
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;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). W4MU^``
;Enter this into "hello.asm" then type: zG
IxmJ.
;"nasm -f elf hello.asm" Ax"]+pb
;"ld hello.o -o hello" >* Ag0.Az
;"./hello" !U6q;'
)-
%5g(|Y]
section .data ;data section declaration /x2-$a:<
msg db 'Hello World!',0AH =&%}p[
3g
len equ $-msg ;string length V47z;oMXct
TH[xSg
section .text ;code section declaration AW{"9f4
global _start ;entry point (start of execution) .wH`9aq;5@
_start: mov edx,len ;string length zWs("L(#s
mov ecx,msg ;string start G_ -8*.
mov ebx,1 ;file handle: stdout xh6Yv%\@
mov eax,4 ;sys_write 0^lCZ,uq;
int 80h ;kernel system call ]1Wh3C
<8J_[
S
mov ebx,0 ;return value CjRU3
(Q
mov eax,1 ;sys_exit N.~zQVO#R
int 80h ;kernel system call #uRj9|E7
_'Jz+f.
}dv$^4
*n
x86 CPU,Windows,MASM32 6&J7=g%G
.386 t,bQ@x{zVC
.model flat,stdcall - uk}Fou
option casemap:none u;
]4ydp
;Include 文件定义 9~7s*3zI
include windows.inc 1 eP`
include user32.inc )~X.x"}8k
includelib user32.lib jw 4B^2}
include kernel32.inc +,g3Xqs}X
includelib kernel32.lib I$0O4
;数据段 ?Yf0h_>
.data $@Bd}35 J
szCaption db 'A MessageBox!',0 -v@LJCK7I
szText db 'Hello,world!',0 2gasH11M
;代码段 *\$m1g7b
.code C%RYQpY*c
start: !B*l'OJw
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK +nAbcBJAl
invoke ExitProcess,NULL o;kxu(>yL'
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> i! <1&{
end start !VDNqW
C0K0c6A(4
n g,&;E
AWK A<szY92&5
BEGIN { print "Hello, world!" } k_?Z6RE>
1
ORA6
@S<6#zR
BASIC uh<e-;vU
传统版BASIC(例如GWBASIC): -I0J-~#
JGHQzC
10 PRINT "Hello, world!" Ndz'^c
20 END u7/]Go44
:pH3M[7
或在提示符输入: WGwIc7
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?"Hello, world!":END '< .gKo
9)?_[|2
现代版BASIC(例如Quick BASIC): ~T^,5Tz1j
31GqWN`>$
Print "Hello, world!" M!Ua/g=u
# 4&t09
以下的语句在Quick BASIC中同样有效: 14pyHMOR
~ K/_51O'
? "Hello,world!" J?9n4
u
`s8o2"12
}vXiq T
BCPL Tlm::S
GET "LIBHDR" Fks #Y1rI
V(5*Dn84
LET START () BE }?)U`zF)7}
$( hLICu[LC?
WRITES ("Hello, world!*N") 0FcG;i+
$) cj\?vX\V
@P)2ZGG
Di"Tv<RlQ
Befunge koa-sy )#L
"!dlrow olleH">v yZV Y3<]
, r"|UgCc
^_@ O))YJh"'_
#&}j'oD|N
{ePtZyo0
Brainfuck vR7S!
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ^M)+2@6
+++++++++++++++.>.+++.------.--------.>+.>. Ya
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m:D0O]2
nv<t$r
C A2.GNk
#include <stdio.h> ~s{
V!)0
w9w=2 *
int main(void) u[E0jI
{ 7n)ob![\d
printf("Hello, world!\n"); w `nm}4M
return 0; T'ei>]y]
} TD sjNFe3
Ih HKRb[
RT.
%\)))
C++ V!Pe%.>
#include <iostream> @u@,Edh
u]*f^/6Q
int main() E?0Vo%Vh
{
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std::cout << "Hello, world!" << std::endl; %i) 0sET
return 0; tIT/HG_o
} d=0{vsrB
,R\e x =c
N*f]NCSi
C++/CLI w\RYxu?
int main() jcp6-XM
{ 25j?0P"&
System::Console::WriteLine("Hello, world!"); d%K&
} V-(*{/^"
D}`MY\H
t2Px?S?
C# (C Sharp) t$3B#=
class HelloWorldApp wBJ|%mc3TA
{ R"yxpw
public static void Main() \fsNI T/
{ rvacCwI
System.Console.WriteLine("Hello, world!"); P(UY}oU
} ;\(LovUy6
} CofTTYl
3a[ LM!
d`,z4_
COBOL l{gR6U{e
IDENTIFICATION DIVISION. Kk,u{EA
PROGRAM-ID. HELLO-WORLD. o)GesgxFa5
# w@FBFr@
ENVIRONMENT DIVISION. |\Q2L;4C
{PkR6.XhR
DATA DIVISION. &Oc
`|r*
fRb
PROCEDURE DIVISION. /:v}Ni"6nF
DISPLAY "Hello, world!". `-.6;T}2U
STOP RUN. D_?dy4\
82 dmlPwJC
;jJ4H+8
Common Lisp J|F!$m{
(format t "Hello world!~%") <KJ|U0/jGd
^u2x26].
/
*/"gz%
DOS批处理 }qJ`nN8
@echo off /BN=Kl]
echo "Hello, world!" }G "EdhSl
icQQLSU5
($Op*bR
Eiffel $DaQM'-
class HELLO_WORLD :r2d%:h%2
}KYOde@
creation voFg6zoV_
make kxR!hA8wv4
feature v cUGBGX_&
make is dOK]Su
local )5`~WzA
io:BASIC_IO 4M!wm]n/%5
do DS9-i2
!!io Q-B/SX)!/
io.put_string("%N Hello, world!") Y_6v@SiO
end -- make hE
E1i
end -- class HELLO_WORLD oJ tmd}
PC\p>6xT
?-~<Vc*
Erlang }(!rB#bf
-module(hello). liqVfB%
-export([hello_world/0]). PI@?I&Bo
A<^X P-Nrp
hello_world() -> io:fwrite("Hello, World!\n"). (! 8y~n1
`t\\O
AiL80W^=d)
Forth v0TbQ
." Hello, world!" CR >oN Wf
})`z6d]3
i8KoJY"
Fortran Xy. /1`X
WRITE(*,10) i&p6UU
10 FORMAT('Hello, World!') !xBJJ/K+|
STOP Y78DYbU.
END j;qV+Rq]t
7PuYrJ
ESk:$`P
HTML VT-%o7%N
<HTML> Dc*
H:x;
<HEAD> f~,Ml*Zp
<TITLE> Hello World! </TITLE> S_nAO\h
</HEAD> D>^g2!b:
<BODY> lD->1=z
<p>Hello World!</p> ^QjkZ^<dD
</BODY> (sI`FW_
</HTML> hT,rcIkg:
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-N
y>:U&P^
HQ9+ `A5n6*A7
H cs_
M6 8foeeN
L0I|V[
INTERCAL <CJy3<$u
PLEASE DO ,1 <- #13 "',;pGg|K
DO ,1 SUB #1 <- #238 tSnsjd<6.
DO ,1 SUB #2 <- #112 y(/5l
DO ,1 SUB #3 <- #112 =c$x xEDD
DO ,1 SUB #4 <- #0 Q/]o'_[vW
DO ,1 SUB #5 <- #64 sxS%1hp3
DO ,1 SUB #6 <- #238 a#G3 dY>
DO ,1 SUB #7 <- #26 Pd& Npp3
DO ,1 SUB #8 <- #248 R^=v&c{@
DO ,1 SUB #9 <- #168 x4MTE?hT
DO ,1 SUB #10 <- #24 W8Wjq
DQ
DO ,1 SUB #11 <- #16 I(WIT=Wi<
DO ,1 SUB #12 <- #158 Y@<jvH1
DO ,1 SUB #13 <- #52 =}@1Z~
PLEASE READ OUT ,1 @nMVs6
PLEASE GIVE UP 2s>BNWTU
#qUGc`
MslgQmlM
Java Q, "8Ty
public class Hello I}f7|hYX
{ f& \Bs8la
public static void main(String[] args) $pKegK;'z
{ m`n~-_
System.out.println("Hello, world!"); r&Qa;-4Pl
} Q&+)Kp]A
} ?RIf0;G
FV3[7w=D\
:>o0zG[;f
JSP 7
, _b
<% Ryygq,>VD.
out.print("Hello, world!"); )FmIL(vu
%> @H3x51PT(m
:bi(mX7t
k4!_(X%8
MIXAL V1GkX=H},
TERM EQU 19 the MIX console device number VXlAK(
ORIG 1000 start address lzz;L
z
START OUT MSG(TERM) output data at address MSG )v11j.D
HLT halt execution ms!|a_H7r
MSG ALF "MIXAL" ASrRMH[
ALF " HELL" qJf\,7mi
ALF "O WOR" 8h4]<T
ALF "LD " "nb.!OG~(
END START end of the program ~R~.D
.p*?g;
<3/_'/C
Nuva GD'Z"rhI
<..直接输出..> |Ldvfd
Hello, world! qX; F+~
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<..或者..> uFb
9Ic]`
g]c6_DMfb1
<. GQJ4d-w
// 不带换行 hQ!59
? "Hello, world!" jN'h/\
L,
#|W
// 或者 (fr=N5
^c>Bh[
// 带换行 ;"ESN)*|i
?? 'Hello, world!' u??ti
OK{
.> !4FOX>|L@
nT+ZSr
u<N`;s
OCaml q,%Fvcmx+e
let main () = &l!T2PX!
print_endline "Hello world!";; olA+B
$~/cxLcT
r\FZ-gk}Q
Pascal Iz-mUD0;
program Hello; Q<g>WNb
begin /Hq
writeln('Hello, world!'); '1xhP}'3)
end. 7fO<=ei:
I"x~ 7
L<3+D
Perl 'Ha> >2M
#!/usr/local/bin/perl 2eeFaFif
print "Hello, world!\n"; tLN^k;w
wfEL
.h
Y'bz>@1(
PHP &WL::gy_S
<?php rFkZ'rp74b
print("Hello, world!"); <|?)^;R5!
?> _x3=i\O,
[hpkE lE
)ZBNw{nh
Pike QG~6mvD
#!/usr/local/bin/pike -K(d]-yv
int main() ,Wu$@jD/]
{ L-S5@;"
write("Hello, world!\n"); )!cucY
return 0; YcclO
} BBGub?(dR
3N+B|WrM
b]Kb ~y|
PL/I 0vX6n6G}
Test: procedure options(main); }!> \Ja<\
declare My_String char(20) varying initialize('Hello, world!'); g-_=$#&{
put skip list(My_String); oYA"8ei =
end Test; `GY3H3B
Scm45"wB+
tc)Md]S
Prolog 1#7|au%:)
goal |4P8N{ L>O
write("hello,world!"). rl~Rb i
~TXu20c
rt Q{
Python UBM#~~sM
#!/usr/local/bin/python u0sN[<
print "Hello, world!" $gz8!
f?
DEhR\Z!
Ta/zDc"e
REXX }cGILH%
say "Hello, world!" z;2& d<h
?V+\E2
5S!j$_(
Ruby :p@jslD
#!/usr/bin/ruby #>\SK
print "Hello, world!\n" eq8faC5
e!L5v?
#3LZX!
Scheme 8v8-5N
(display "Hello, world!") -!qjBK,`X
(newline) NIQ}+xpC
:AFU5mR4&
T ,!CDm$=
sed (需要至少一行输入) @ NL<v-t
sed -ne '1s/.*/Hello, world!/p' 2)\MxvfOh
{ pQJ.QI
.|g@#XIwe#
Smalltalk Mt`LOdiC_
Transcript show: 'Hello, world!' }` H{;A
h
NS`hXf
Bw!J!cCj
SNOBOL &Ejhw3Nw
OUTPUT = "Hello, world!" bpU>(j
END `$FX%p
eFS$ ;3FP1
@M-Q|
SQL 0-{E% k
create table MESSAGE (TEXT char(15)); islHtX
VE
insert into MESSAGE (TEXT) values ('Hello, world!'); \o2l;1~
select TEXT from MESSAGE; I+.U.e^gx
drop table MESSAGE; LEtGrA/%@b
~,KrL(jC
%3TioM[B
Tcl tWzB Qx
#!/usr/local/bin/tcl $uFvZ?w&
puts "Hello, world!" cr]b #z
I0Allw[
e&:%Rr]x
TScript v?6*n>R
? "Hello, world!" KaOXqFT=
}Rh%bf7,
Yy]TU} PY
Turing _=`DzudE
put "Hello, world!" W.cc!8
$8 &Y(`
)6X-m9.X
UNIX-style shell -zJV(`
程序中的/bin/sh可改为您使用的shell {{_v.d~1
cfv:Ld m
#!/bin/sh ~8(Xn2
echo 'Hello, world!' ;8K>]T)
'q~<ZO
40`Qsv0#
GUI u{\>iQ
+]-'{%-zK
Delphi Hf1b&8&:K
program HelloWorld; 0F_hXy@K
uses sKKc_H3YSH
Dialogs; V9Mr&8{S4
begin +_*NY~
ShowMessage('Hello, World!'); ]3='TN8aQF
end. h@1/
=L1%gQJJ&
)!E:
Nuva R<Mp$K^b
<. aZ{ l6
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) [PiMu,O[v
.> SEg{Gso9b
[Y.JC'F#
g$"x,:2x{
Visual Basic ujBm"p_|
MsgBox "Hello, world!" B:UPSX)A
'或者 %uV,p!| )
Print "Hello, world!" :6)!#q'g
\nuzl
3_boEYl0
Visual FoxPro 4G;KT~Cgb
? "Hello, world!" xW9R-J\W
+/[Rvh5WZ
5W|wDy
X11 FYE(lEjxi
用一个程序
(6mw@gzr
VSCKWYy
xmessage 'Hello, world!' bJ"2|VNH(
lf
KV%
用C++和gtkmm 2 XVfUr\=,T
9
;uw3vI%
#include <iostream> BdU .;_K
#include <gtkmm/main.h> ?G~rYETvw
#include <gtkmm/button.h> Gl3g.`X{$@
#include <gtkmm/window.h> j"TEp$x
using namespace std; CKFr9bT{
Iix:Y}
class HelloWorld : public Gtk::Window {&D$U'ye
{ 76 o[qay
public: ;ZcwgsxTM
HelloWorld(); Z[Iej:o5
virtual ~HelloWorld(); HfP<hQmN'
protected: ^{0*?,-x
Gtk::Button m_button; jpR]V86G
virtual void on_button_clicked(); ,aP5)ZN-
}; U
Rq9:{
4, Vx3QFZ
HelloWorld::HelloWorld() : m_button("Hello, world!") =s'H o
{ {|<r7K1<
set_border_width(10); 7.2 !g}E
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Zs3xoIW7Ai
add(m_button); ;QCGl$8A
m_button.show(); =u0a/2u|
} VJW8%s[
[J eq ?X9
HelloWorld::~HelloWorld() {} 5S&Qj7kr
yLXIjR
void HelloWorld::on_button_clicked() Xq37:E2
{ /4+zT?f
cout << "Hello, world!" << endl; ('BB9#\t
} ]w]BKpU=
F2Ny=H&G
int main (int argc, char *argv[])
O5+Ah%
{ _(io8zqe{j
Gtk::Main kit(argc, argv); |pMP-
HelloWorld helloworld; glM42s
Gtk::Main::run(helloworld); 0v1~#KCm
} yU7XX+cB7
ND=JpVkvZ?
F &5iA\
Java aYpc\jJ
import java.awt.*; C9k"QPE
import java.awt.event.*; \7xc*v [
yEJ3O^(F
public class HelloFrame extends Frame (~F}O
{ J &=5h.G$
HelloFrame(String title) D?*du#6
{ sH1ucZ>9Y
super(title); VTDnh*\5
} 3?h!nVI+2J
public void paint(Graphics g) (o{x*';i4
{
k6@
super.paint(g); C deV3
java.awt.Insets ins = this.getInsets(); efHCPj
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 7hMh%d0d(_
} _:Y|a>
public static void main(String args []) !&@t
{ #jj(S\WY
HelloFrame fr = new HelloFrame("Hello"); 4-'0# a
m%"=sX7/9
fr.addWindowListener( UaQW<6+
new WindowAdapter() e9S*^2;
{ \fUVWXv
public void windowClosing(WindowEvent e) B"*PBJuOA
{ -H_#et3&i