“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。 '5ZtB<
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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》。 IkU:D"n7
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以下是用不同语言写成的Hello World程序的几个例子: 8qEK6-
Ada 8G>;X;W
with Ada.Text_Io; use Ada.Text_Io; Ng6(2Wt0e
procedure Hello is nr#DE?
begin kW#{[,7r
Put_Line ("Hello, world!"); l"\W] 'T:r
end Hello; \gh`PS-B
X:*Ut3"
u= |hRTD=
汇编语言 Daa2.*
NC*h7
x86 CPU,DOS,TASM O^D$ ~
]
MODEL SMALL LN8V&'>
IDEAL 3zO'=gwJ
STACK 100H 0aMw
,Z7tpFC
DATASEG '~^3 =[Z
HW DB 'Hello, world!$' dnby &-+T
g2=5IU<
CODESEG LDJ=<c!
MOV AX, @data bBQ1~ R
MOV DS, AX y:0j$%^
MOV DX, OFFSET HW V 4RtH
MOV AH, 09H Z7eD+4gD
INT 21H kpM5/=f/@
MOV AX, 4C00H x+}6qfc$9k
INT 21H :eK;:pN
END D3LW49
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x86 CPU,GNU/Linux,NASM 2VOdI
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). (9N75uCa
;Enter this into "hello.asm" then type: wn'_;0fg
;"nasm -f elf hello.asm" *q8L$D
;"ld hello.o -o hello" .TN9N
;"./hello" acWm+
Vo%MG.IPB
section .data ;data section declaration W9{>.E?
msg db 'Hello World!',0AH zS*X9|p
len equ $-msg ;string length Z#wmEc.}C
FDB^JH9d
section .text ;code section declaration 5Pis0fa
global _start ;entry point (start of execution) H1PW/AW
_start: mov edx,len ;string length Z6}B}5@y
mov ecx,msg ;string start !s;+6Sy
mov ebx,1 ;file handle: stdout {*8'bNJ
mov eax,4 ;sys_write ! K~PH
int 80h ;kernel system call V`KXfY
=OIxG}*
mov ebx,0 ;return value 4#?OxvH
mov eax,1 ;sys_exit p7Yej(B
int 80h ;kernel system call E%M~:JuKd?
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yfS`g-j{~
x86 CPU,Windows,MASM32 jXO*_R
.386 -WIT0F4o;
.model flat,stdcall 1.]Py" @:
option casemap:none $/%|0tQ
;Include 文件定义 u-zl- ?Ne
include windows.inc 2\ /(!n
include user32.inc )#9R()n!
includelib user32.lib kfo, PrW`A
include kernel32.inc &p1Et
includelib kernel32.lib 9-DDly [)4
;数据段 $cri"G
.data }>cQ}6n.
szCaption db 'A MessageBox!',0 |IqQ%;H
szText db 'Hello,world!',0 K9FtFd
;代码段 n&x#_B-
.code 5N(/K. ^
start: tI&Z!fj
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK hlxZq
invoke ExitProcess,NULL r"OVu~ND
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *yqEl
O
end start [X.sCl|
-r_/b
&eQF[8 ,
AWK C,R_`%b%
BEGIN { print "Hello, world!" } Qo{Ez^q@J
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C+-xC~
BASIC 8$3G c"=
传统版BASIC(例如GWBASIC): {Slc6$
*<2+tI
10 PRINT "Hello, world!" Int6xoz
20 END jb8v3L
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或在提示符输入: =<I 90j~)
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?"Hello, world!":END *5iNw_&
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现代版BASIC(例如Quick BASIC): \?-`?QPux
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Print "Hello, world!" :Vc+/ZyW
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以下的语句在Quick BASIC中同样有效: 2HBYReQ
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? "Hello,world!" r5z_{g
%N@454enH
[k(oQykq
BCPL <U=:N~L
GET "LIBHDR" N=&~3k
Dh0`t@
LET START () BE h>w4{ u0
$( }tT"vCu
WRITES ("Hello, world!*N") QfJ?'*
$) P?dE\Po7
"gXz{$q
/i|T \
Befunge l|[cA}HtB
"!dlrow olleH">v a_/\.
, oJw~g[
^_@ /"+n{*9
yzt6
xt@zP)6G
Brainfuck RQ#gn
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 2~+_T
+++++++++++++++.>.+++.------.--------.>+.>. |?0Cm|?
*Z=K9y,IC
4flyV -
C +Gi~VW.
#include <stdio.h> *4Cq,o`o>
<l(6$~(-u
int main(void) RuDn1h#u{
{ OwrzD~
printf("Hello, world!\n"); KFBo1^9N
return 0; (Vglcj
} mmm025.
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,x}p1EZ
C++ >(Jy=m?
#include <iostream> wxpE5v+f|
S`TP#uzKu]
int main() k.>*!l0
{ `6`NuZ*6g
std::cout << "Hello, world!" << std::endl; ?y!0QAIXK
return 0; Q@hx+aM
} ^HumyDD6
P&C,E E$
Y[9x\6
_E
C++/CLI 7Xm7{`jH
int main() l2KR=&SX/
{ a0OH
System::Console::WriteLine("Hello, world!"); vbzeabm
} ipnvw4+
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- XIjol(
C# (C Sharp) @ 'rk[S}A
class HelloWorldApp Ia$&SS)K
{ wy"^a45h
public static void Main() ET1/oG<@
{ I&qT3/SVI
System.Console.WriteLine("Hello, world!"); 8SK}#44Xz
} 0\O*\w?
} lq=|=
fD#|C~:=
o0^'xVv
COBOL .Y[sQO~%
IDENTIFICATION DIVISION. x F7C1g(
PROGRAM-ID. HELLO-WORLD. z-K?AkB1
(Y\aV+9[
ENVIRONMENT DIVISION. "TA r\;[
6W."hPP
DATA DIVISION. ~M`QFF
&=5
PROCEDURE DIVISION. -8; ,#
DISPLAY "Hello, world!". 1tU}}l
STOP RUN. 2 628 c`
Fyoy)y*
Urur/_]-%
Common Lisp T;X8T
(format t "Hello world!~%") X64OX9:YF
[TvH7ott'1
X*VHi
DOS批处理 Xjc{={@p3
@echo off \ Xow#@[
echo "Hello, world!" Q3,`'[ F
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y-O#
+{7
Eiffel '`$a l7D
class HELLO_WORLD n}PK0
{C Qo}@.7
creation !fr /WxJ
make {ecmOxKP}
feature 0{g @j{Lbz
make is I^sWf3'db
local YG$2ySkDhE
io:BASIC_IO "&%:
9O
do `W< 7.
!!io &-W5T?Sl
io.put_string("%N Hello, world!") +,<\LIP
end -- make w~@.&
end -- class HELLO_WORLD 3/mVdU?U
o-2FGM`*VB
4 F~e3
Erlang Oi +(`
-module(hello). \dSMF,E
-export([hello_world/0]). @@K@;Jox
`X]TIMc:Ad
hello_world() -> io:fwrite("Hello, World!\n"). betN-n-
) \Mwv&k1
YP{)jAK
Forth @54, I
." Hello, world!" CR b}4k-hZL
Hi #'h
cy8+@77
Fortran ysD@yM,
WRITE(*,10) }q9;..oL
10 FORMAT('Hello, World!') "ut:\%39.
STOP j>X;a39|
END 4a]m=]Hm
CPc<!CC
}c(".v#
HTML ;%P$q9*C
<HTML> +hL+3`TD#H
<HEAD> wP3_RA]z
<TITLE> Hello World! </TITLE> ei'=%r8~
</HEAD> BUB#\v#a
<BODY> eSf
e
s
<p>Hello World!</p> q/-8sO}q
</BODY> }7YDe'5V
</HTML> -Qx:-,.a
B
MU@J
0:UK)t)3I
HQ9+ c n#JO^8
H ?n)r1m
rBLkowDP*
`"QUA G
INTERCAL g{wIdV
PLEASE DO ,1 <- #13 ;V]EF
DO ,1 SUB #1 <- #238 bUbM }
DO ,1 SUB #2 <- #112 .CH0PK=l
DO ,1 SUB #3 <- #112 ;K 38I}
DO ,1 SUB #4 <- #0 ;m$F~!Y
DO ,1 SUB #5 <- #64 =t1.j=oC
DO ,1 SUB #6 <- #238 4K` N3
DO ,1 SUB #7 <- #26 3)v6N_
DO ,1 SUB #8 <- #248 X||Z>w}v
DO ,1 SUB #9 <- #168 OJ$169@;
DO ,1 SUB #10 <- #24 X_|W#IM*+
DO ,1 SUB #11 <- #16 6He 7A@Eh
DO ,1 SUB #12 <- #158 2/S~l;x
DO ,1 SUB #13 <- #52 qp
(ng8%c
PLEASE READ OUT ,1 0/P!rH9
PLEASE GIVE UP +F q`I2l|
\ &1)k/
SvC|"-[mJ
Java F_;oZ
public class Hello q+2yp&zF
{ NfcY30}:
public static void main(String[] args) %
INRds
{
b<v \
System.out.println("Hello, world!"); 2zR*`9$
} J7X-=E D
} d!/@+i
RbX!^v<0f6
:gv`)
JSP 0L10GJ "(
<% yA_;\\
out.print("Hello, world!"); 9i@AOU
%> x][vd^iW
o~!4&
|gEA.}
pY
MIXAL R_J=x
TERM EQU 19 the MIX console device number %98F>wl
ORIG 1000 start address '8>h4s4
START OUT MSG(TERM) output data at address MSG YAnt}]u!"
HLT halt execution M iIH&z
MSG ALF "MIXAL" ;:1d<Q|
ALF " HELL" avxI\twAU
ALF "O WOR" "Q9S<O8)
ALF "LD " NhQIpzL)
END START end of the program b $x<7l5C
@
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H
jQ.]m
Nuva Lu\]]m
<..直接输出..> Z'dY,<@
Hello, world! Ls#pe
i.2O~30ST
<..或者..> ~LGkc
t
ElAJR4'{*i
<. )%%RI_JT
// 不带换行 cAC2Xq
? "Hello, world!" w~M5)b
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// 或者 5}
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, M$*c
// 带换行 %~P]x7%|
?? 'Hello, world!' >|SB]'C|
.> 2#&9qGR
)a,-Hc:Vz
jzV*V<
OCaml >U~.I2sz
let main () = |o~<Ti6]
print_endline "Hello world!";; "T5?<c
ZV}BDwOFI
{OP-9P=p
Pascal ~jAOGo/&6
program Hello; =BY)>0?z
begin qT#+DDEAL
writeln('Hello, world!'); @8C^[fDL
end.
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JbzYr]k
pcNVtp'V
Perl kbBD+*
#!/usr/local/bin/perl m
s\:^a
print "Hello, world!\n"; Q_/{TE/sO5
*2crhI*@>
>JS\H6
PHP JGt4B
<?php V`~$|
K[
print("Hello, world!"); /tA$'tZ
?> M]!\X6<_
R?+Eo(0q,
eJ)Bs20Q
Pike g.f!Uc{
#!/usr/local/bin/pike Mo
&Ia6^
int main() #O]F5JB
{ &w:"e'FG`
write("Hello, world!\n"); 0:Js{$ZL4
return 0; =%Gecj
} n|NI]Qi*
R?1;'pvpa[
X obiF
PL/I $f>Mz|j
Test: procedure options(main); W-=~Afy
declare My_String char(20) varying initialize('Hello, world!'); : QSlctW
put skip list(My_String); CZE5RzG
end Test; `d6
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~ $#DB@b
<Sm -Z,|
Prolog s2g}IZfo
goal "m})~va
write("hello,world!"). -Qo`UL.}
dW;{,Q
)vOZp&
Python ?yddr`?W
#!/usr/local/bin/python .{HU1/!
print "Hello, world!" -"Lia!Q]M
U/,`xA;v>
*r p@`W5
REXX s`Z(f:/6*
say "Hello, world!" Yg/e 8Q2
JXBW0|8b
Q`g0g)3w
Ruby 7~cN
#!/usr/bin/ruby 9cFFQM|o
print "Hello, world!\n" IkH]W!_+
&GwBxJ
/YHBhoat
Scheme :<gmgI
(display "Hello, world!") Wf13Ab
(newline) 1W8[
RET
zF<*h~
v[CX-CBZ?
sed (需要至少一行输入) xZtA) Bp
sed -ne '1s/.*/Hello, world!/p' u%a2"G|
0@,,YZf
/#9O{)
Smalltalk HoymGU`w
Transcript show: 'Hello, world!' w |>:mQnU
?A(=%c|,g
g63:WX-\
SNOBOL L|S#(0
OUTPUT = "Hello, world!" ~zRUJ2hD!
END T#J]%IDd
"KOLRJ@
R[wy{4<y
SQL EU ThH.
create table MESSAGE (TEXT char(15)); =w".B[r
insert into MESSAGE (TEXT) values ('Hello, world!'); ~Ht[kO
select TEXT from MESSAGE; s
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drop table MESSAGE; Cv{rd##Y8
g Gg8O? Z
%&Z!-k(
Tcl y_qFXd
#!/usr/local/bin/tcl U?>P6p
puts "Hello, world!" !-x^b.${B
vb9G_Pfz
N-3w)23*:
TScript h_?D%b~5
? "Hello, world!" h\C
|=l;UqB
-DX|[70
Turing >T.U\,om7
put "Hello, world!" e.\d7_T+
Hh$D:ZO
|g> K$m^
UNIX-style shell fcr\XCG7U
程序中的/bin/sh可改为您使用的shell !K'kkn,h
:b^tu8E
#!/bin/sh `"I^nD^t>Y
echo 'Hello, world!' Cf<i"
~c! XQJ
p8[Z/]p
GUI U;;vNzcn
RNcHU
Delphi bY+Hf\A
program HelloWorld; }_3<Q\j
uses ED[PP2[/
Dialogs; pb$U~TvzhM
begin -78
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ShowMessage('Hello, World!'); `P)atQ
end. B Gh%3"q
rxIfatp^
*7nlel
Nuva <bXfjj6YJ@
<. "1&C\}.7
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) #]:yCiA
.> U|uvSJ)X
`DC)U1
G~8C7$0z
Visual Basic ~7 C` a$
MsgBox "Hello, world!" rh${pHl
'或者 vov"60K
Print "Hello, world!" -2K`:}\y&
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7>wSbAR<
Visual FoxPro 6Ei>VcN4a
? "Hello, world!" $?(fiFC
ss236&
Ts|&_|
X11 B:&/*HU
用一个程序 dW,$yH_
opjrU$<]N
xmessage 'Hello, world!' \.9-:\'(
%z`bu2
用C++和gtkmm 2 <{3VK
:I+%v
#include <iostream> bxc#bl3
#include <gtkmm/main.h> IM}#k$vM:
#include <gtkmm/button.h> J ;i/X;^
#include <gtkmm/window.h> n_v|fxF1
using namespace std; 9$)TAI&P
oslrv7EK
class HelloWorld : public Gtk::Window hCc_+/j|
{ CcLP/
public: C*/d%eHD
HelloWorld(); n$axqvG
virtual ~HelloWorld(); PLw;9^<
protected: p(v+j_ak
Gtk::Button m_button; 6S2D\Bt,_
virtual void on_button_clicked(); *'QD!Tc
}; @Ej{sC!0T
i.)kV B
HelloWorld::HelloWorld() : m_button("Hello, world!") *9`@
{ ]{0
2!
set_border_width(10); F9]GEBLr
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); elJLTG
add(m_button); Z[FSy-;"
m_button.show(); 3O:Z;YP:<
} n3g3(}Q0
_Sosw|A
HelloWorld::~HelloWorld() {} ^ bexXYh
B7fURL
Rqr
void HelloWorld::on_button_clicked() Z<0M_q9?MO
{ 'eLO#1Ipf
cout << "Hello, world!" << endl; U9SByqa1
} b_|`jHes
>(|T]u](q
int main (int argc, char *argv[]) W-<C%9O!
{ mKvk6OC
Gtk::Main kit(argc, argv); -Z-|49I/mN
HelloWorld helloworld; a^@6hC>sr
Gtk::Main::run(helloworld); {}s7q|$
} >IJH#>i
: ,fs'!
}<[@)g.h.
Java @tM1e<
import java.awt.*; bvUjH5.7
import java.awt.event.*; GghZ".O
v<ASkkh>
public class HelloFrame extends Frame DKPX_::
{ O<
v0{z09*
HelloFrame(String title) pyq~_Bng
{ ^$FHI_
super(title); AcwLs%'sx
} f2`[skNj
public void paint(Graphics g) .Qyq*6T3&
{ :Z- =1b~
super.paint(g); u v%T0JA/
java.awt.Insets ins = this.getInsets(); 7s4G|N[wR\
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); %|I~8>m
} N8@Fj!Zi
public static void main(String args []) ==RYf*d
{ /3Zo8.
HelloFrame fr = new HelloFrame("Hello"); ?<ks^2D
k^w!|%a[
fr.addWindowListener( nVoL7ew+
new WindowAdapter() QgqR93Ic
{ $>hPB[ [
public void windowClosing(WindowEvent e) `k+ci7;
{ `1=n H/E
System.exit( 0 ); bz[U<