“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。 %]Fd[pzF
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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》。 4Fa~Aog
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以下是用不同语言写成的Hello World程序的几个例子: Hek*R?M|
Ada UXeN 8
with Ada.Text_Io; use Ada.Text_Io; ;"KJ7p
procedure Hello is mkMq
begin @u.58H& }R
Put_Line ("Hello, world!"); WeJl4wF
end Hello; U GD2
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<S\jpB
汇编语言 E08klC0
Bs13^^hu
x86 CPU,DOS,TASM FI[A[*fi
MODEL SMALL 3Q"<<pi!~
IDEAL lun#^ J
STACK 100H pSoiH<33
+GG9^:<yr
DATASEG ;>#wU'
HW DB 'Hello, world!$' pN!}UqfI-
'ZT^PV\
CODESEG 1Y/s%L
MOV AX, @data ATJWO1CtB
MOV DS, AX XO`0>^g
MOV DX, OFFSET HW ]@dZ{H|
MOV AH, 09H ?b*s.
^
INT 21H }]e-{C}
MOV AX, 4C00H ?Fi=P#
INT 21H ]|!OP
END Vdtry@Q
#eQJEajv5
f) zn TJL
x86 CPU,GNU/Linux,NASM N|1M1EBOu>
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). )n+Lo&C<
;Enter this into "hello.asm" then type: wy yWyf
;"nasm -f elf hello.asm" QXL'^uO
;"ld hello.o -o hello" ,eOB(?Ku
;"./hello" C+'/>=>a.
vo`2\R.
section .data ;data section declaration
05z,b]>l
msg db 'Hello World!',0AH uPhK3nCGo
len equ $-msg ;string length t,,k
6tX q:
section .text ;code section declaration \Npxv
global _start ;entry point (start of execution) 0Z~p%C<LW
_start: mov edx,len ;string length ~KHVY)@P
mov ecx,msg ;string start 8?J&`e/
mov ebx,1 ;file handle: stdout M}d_I+
mov eax,4 ;sys_write 4\y/'`xm)6
int 80h ;kernel system call 2w59^"<,
mlixIW2
mov ebx,0 ;return value ?a8^1:
mov eax,1 ;sys_exit }0eF~>Df
int 80h ;kernel system call y6LWx:
lH-/L(h2
i8`Vv7LF
x86 CPU,Windows,MASM32 ?$vCW|f
.386 B{|8#jqY
.model flat,stdcall o1Ph~|s*8
option casemap:none e]`[yf
;Include 文件定义 |L-]fjBbF
include windows.inc yXz*5W_0D
include user32.inc P=7zs;k
includelib user32.lib @$lG@I,[
include kernel32.inc <PapskO>
includelib kernel32.lib ~kShq%
;数据段 "*m_> IU
.data 6;u$&&c(
szCaption db 'A MessageBox!',0 3
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szText db 'Hello,world!',0 F=`AY^u0
;代码段 /h+8A',
.code *-MM<|Qt
start: O/,aJCe
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK cJN7bA{
invoke ExitProcess,NULL XaCX!Lr,
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> PRr2F-!P
end start ]gmexa=(i
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AWK 9)}[7Mg:C
BEGIN { print "Hello, world!" } ~R_ztD+C(
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BASIC K#EvFs`s;
传统版BASIC(例如GWBASIC): p!>oo1&
E^QlJ8
10 PRINT "Hello, world!" #OIcLEn%
20 END t\NqR
?kWC}k{
或在提示符输入: 'h/C oTk@,
ad.3A{
?"Hello, world!":END G"\`r* O
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现代版BASIC(例如Quick BASIC): X*M#FT-
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Print "Hello, world!" M*z~gOZ
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以下的语句在Quick BASIC中同样有效: >xF/Pl
#N#'5w-G
? "Hello,world!" eAXc:222
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]DOX?qI
i
BCPL mX\TD0$d
GET "LIBHDR" n1~o1
TT'[qfAI
LET START () BE 8dZ0rPd?
$( fBalTk;G{U
WRITES ("Hello, world!*N") z8QAo\_I(
$) :|_'fNd+!
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*+-}P|S:
Befunge &{>cZh}\
"!dlrow olleH">v ~p1j`r;
, ]%|GmtqZs,
^_@ ~KW,kyXBnD
Qj,]N@7
g6Q !8
Brainfuck 7N-w eX
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< :,Pn3xl
+++++++++++++++.>.+++.------.--------.>+.>.
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h!&prYx
94+KdHAo^M
C wT `a3Ymm
#include <stdio.h> LNrX;{ Z
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int main(void) vg
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{ OlAs'TE^
printf("Hello, world!\n"); Q?3Gk%T0[
return 0; *"D3E7AO
} 5"HVBfFk
?*E'^~,H)
]Bm/eRy"
C++ ?mWw@6G,
#include <iostream> +VCGlr
CACTE
int main() h v8P4"i v
{ %K\?E98M
std::cout << "Hello, world!" << std::endl; R(2tlZ
return 0; Cz72?[6
} !OBEM1~
1
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!y!~
,17hGKM
C++/CLI >+]_5qc
int main() kBYNf =
{ Hj:r[/
System::Console::WriteLine("Hello, world!"); oN{Z+T :
} L1ieaKw
lmfi
{.QEc0-
C# (C Sharp) @$LWWTr;
class HelloWorldApp AI,(z;{P
{ Sg6"WV{<
public static void Main() V#cqRE3XNi
{ D&}3$ 7>
System.Console.WriteLine("Hello, world!"); Uc_'(IyO
} }"=AG
} "NgxkbDEbG
r9 ui|>U"
3E>frR\!I
COBOL *Txl+zTY
IDENTIFICATION DIVISION. !eEHmRgg4
PROGRAM-ID. HELLO-WORLD. #bl6sa{E
5Cq{XcXV
ENVIRONMENT DIVISION. kMtwiB|7j
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DATA DIVISION. J]&y$?C
6
G3\=)
PROCEDURE DIVISION. LM7$}#$R
DISPLAY "Hello, world!". `FYv3w2
STOP RUN. }z\_;\7
9T|IvQK8
qW!]co
Common Lisp s<oNE)xe
(format t "Hello world!~%") A-4h
J.ck~;3
%!du,2
DOS批处理 ^@qvl%j
@echo off Y}uCP1v
echo "Hello, world!" JMH8MH*
TiYnc3Bz}J
>TQH|}|6(y
Eiffel +m8!U=Zi
class HELLO_WORLD ))&;}2{
m|=H#
creation q{t*34R
make (N&lHLy
feature ,`gl&iB
make is .Fnwm}
local UEozAY
io:BASIC_IO yqi^>Ce0
do h"_~7jq"
!!io AwslWkd=
io.put_string("%N Hello, world!") \/1<E?Q
f
end -- make NGOqy+Ty{f
end -- class HELLO_WORLD \hhmVt@@
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b@S Cn9
Erlang PB#fP_0C
-module(hello). ?r?jl;A&
-export([hello_world/0]). UN zlN
4\6N~P86
hello_world() -> io:fwrite("Hello, World!\n"). iVd.f
A
(cN}Epi(D
*e-A6Sh
Forth :cGt#d6
." Hello, world!" CR {K9/HqH
;_^fk&+
|b-]n"}c>
Fortran Eh|]i;G%
WRITE(*,10) G.(mp<-
10 FORMAT('Hello, World!') ( YQWbOk
STOP *,Za6.=
END {%IE xPJ
,:??P1
/)dFK~
HTML >2]JXLq
<HTML> )l!3(
<HEAD> DqX{'jj
<TITLE> Hello World! </TITLE>
u$-U*r
</HEAD> zOGU8Wg
<BODY> (iRide
<p>Hello World!</p> tl><"6AIP
</BODY> Clh!gpB c
</HTML> 1[jb)j1
(y M^
>2< 8kBF_
HQ9+ '3<fsK=
H ~M\I;8ne
7DIIx}A
4"xPr[=iG
INTERCAL cCa|YW^j
PLEASE DO ,1 <- #13 NcP.;u;`
DO ,1 SUB #1 <- #238 gS:A'@&
DO ,1 SUB #2 <- #112 Oi:<~E[kz.
DO ,1 SUB #3 <- #112 ^D<r
DO ,1 SUB #4 <- #0 Ur5FC r
DO ,1 SUB #5 <- #64 +QE^\a
DO ,1 SUB #6 <- #238 ^`G`phd$
DO ,1 SUB #7 <- #26 TEMw8@b
DO ,1 SUB #8 <- #248 1P(|[W1
DO ,1 SUB #9 <- #168 ,}:G\u*Fu
DO ,1 SUB #10 <- #24 r\blyWi
DO ,1 SUB #11 <- #16 k%E2n:|*
DO ,1 SUB #12 <- #158 E@P %v{)
DO ,1 SUB #13 <- #52 Qu7T[<
PLEASE READ OUT ,1 >P/][MT
PLEASE GIVE UP ]ix!tb.Q
@"o@}9=d
#'q<v"w
Java v*9<c{a
public class Hello 3 q`)*
{ E=cwq"
public static void main(String[] args) ;s~X
{ :<Fe
System.out.println("Hello, world!"); =L C:SFzF
} 1ylk4@`
} M4d47<'*~
PI*82,f3dE
&R$CZU
JSP JR@.R
,rII
<% j~FD{%4N
out.print("Hello, world!"); ~j-cS
J3
%> #Jna6
HmZ{L +"
yB3;
MIXAL h(F<h_
TERM EQU 19 the MIX console device number =i(?deR
ORIG 1000 start address hRq3C1mR
START OUT MSG(TERM) output data at address MSG 2CzaL,je[
HLT halt execution AQc,>{Lm
MSG ALF "MIXAL" 5bA)j!#)|X
ALF " HELL" ki{3IEOr}
ALF "O WOR" ,:%"-`a%
ALF "LD " )
/v6l
END START end of the program >y}M.Mm
MCT'Nw@A
qVdwfT{1J
Nuva e{KByFl
<..直接输出..> _ z;q9&J)
Hello, world! .-JCwnP
3
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<..或者..> #BQ.R,
$z$u{
<. OKHX)"j\\
// 不带换行 n=,\;3Y=
? "Hello, world!" !sRngXCXk?
>+mD$:L
// 或者 )NO<s0?&
(4@lKKiU%H
// 带换行 &*s0\
8
?? 'Hello, world!' iL=
m{
.> (oJ9k[(
`juLQH
ZbT/$\0(6
OCaml 1RKW2RCaW_
let main () = :0/q5_t
print_endline "Hello world!";; < Z|Ep1W
oxj3[</'k
vm'5s]kdh
Pascal @ w>zF/
program Hello; WsFk:h'r
begin up2+s#
writeln('Hello, world!'); (Z}>1WRju
end. nkv(~ej(
KK,Z"){
QaGlR`Y
Perl &wU'p-V
#!/usr/local/bin/perl 8_&CT
:u>
print "Hello, world!\n"; _Cw:J|l.
BI:k#jO!
*0_yT$
PHP 9=,uq;
<?php zyg:nKQW
print("Hello, world!"); m>}8'N)
?> nr)c!8
63!rUB!
c>1RP5vx
Pike ZvGgmLN
#!/usr/local/bin/pike \]9.zlB
int main() !m(4F(!"h
{ D{v8q)5r
write("Hello, world!\n"); `p'Q7m2y/b
return 0; !WkIi^T
} 3@n>*7/E
+m}Pmi$
1G7b%yPA
PL/I < pTTo
Test: procedure options(main); 3jogD
declare My_String char(20) varying initialize('Hello, world!'); 4Iq'/r
put skip list(My_String); z5*=MlZ)R.
end Test; [0OJdY4
6r"u$i`o
nJ?^?M'F%
Prolog AOp/d(vx5i
goal 0e[d=)XG
write("hello,world!"). \#'TNmS
qi^!GA'5j
#,(sAj
Python ]l~Vi_c
#!/usr/local/bin/python Sb".]>^
print "Hello, world!" !TAp+b
as+GbstN
XI Jlc~2
REXX /Jf~25F
say "Hello, world!" ,&HR(jTo
%g]vxm5?
zu2HH<E
Ruby uE=$p)
#!/usr/bin/ruby m6
s7F/
print "Hello, world!\n" xw<OLWW
W/=|/-\]/
f-2$
L
Scheme E^ hHH?w+
(display "Hello, world!") k#}g,0@
(newline) H ftxS
!5}l&7:(MN
?@6/Alk
sed (需要至少一行输入) |DF9cd^
sed -ne '1s/.*/Hello, world!/p' qP*}.Sqk7
utlpY1#q/
v=I|O%
Smalltalk R)Mt(gFZT_
Transcript show: 'Hello, world!' Lh$dzHq
~Z$bf>[(R7
rSP_:}
SNOBOL iP3Z
OUTPUT = "Hello, world!" 8iC:xcN3
END i;PL\Er:tX
I/x iT
W&"|}Pi/
SQL $mA5@O~C5\
create table MESSAGE (TEXT char(15)); IB9%QW"0
insert into MESSAGE (TEXT) values ('Hello, world!'); nL]^$J$
select TEXT from MESSAGE; 17g^ALs
drop table MESSAGE; 1;eX&
Cup@TET35
t>UkE9=3\
Tcl tGcya0RL
#!/usr/local/bin/tcl ! o,5h|\
puts "Hello, world!" ]r]k-GZ$
S\NL+V?7h
2_QN&o ~h
TScript d6 _C"r
? "Hello, world!" h7_)%U<J2
K_-d(
*HM?YhR
Turing ,je`YEC
put "Hello, world!" P}3}ek1Ax
GgFi9Ffj
1D([@)^
UNIX-style shell ~H@+D}J?
程序中的/bin/sh可改为您使用的shell &[|VZ[
mjnUs-`W|
#!/bin/sh HO|-@yOF^
echo 'Hello, world!' Y\/gU8w/
0WxCSL$#I
@fn6<3
GUI &$fbP5uAZ
j,%EW+j$
Delphi `kBnSi o~
program HelloWorld; Ln#a<Rx.E7
uses ,i`h
x,
Rg
Dialogs; W,hWOO
begin IvBGpT"(I
ShowMessage('Hello, World!'); *8g<R
end. ]= x
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aSnp/g
CUmH,`hu
Nuva 89eq[ |G_
<. $G?(OWI}l`
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 0my9l;X
.> ML!9:vz
.{rbw9
r:.uBc&_
Visual Basic \gKdDS
MsgBox "Hello, world!" sB*o)8
'或者 =q
CF%~
Print "Hello, world!" D,W\ gP/h%
hFb
fNB3
Z(!pYhLq
Visual FoxPro )@PnTpL*
? "Hello, world!" 0g(6r-2)7
[Z}B"
T[Q"}&bB
X11 *=nO
用一个程序 2>y:N.
@5Qoi~o
xmessage 'Hello, world!' F,Fo}YQX
V2`;4d X*2
用C++和gtkmm 2 :k"rhI
$AwZ2HY
#include <iostream> ILG?r9x
#include <gtkmm/main.h> C!UEXj`l9
#include <gtkmm/button.h> 1MQ/r*(
#include <gtkmm/window.h> DzDj)7
using namespace std; 1$["79k
_`aR_%Gx
class HelloWorld : public Gtk::Window 5d
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{ =:5<{J OG
public: a&5g!;.
HelloWorld(); APHPN:v
virtual ~HelloWorld(); h(:<(o@<
protected: R7aXR\ R
Gtk::Button m_button; wc[c N+p
virtual void on_button_clicked(); 1i,4".h?M
}; wu^q`!ml
6F5,3&
HelloWorld::HelloWorld() : m_button("Hello, world!") /?3:X*
{ NNX%Bq
set_border_width(10); %]jQ48^R
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); -Cj_B\
add(m_button); z> :U{!5k
m_button.show(); 'O "kt T
} v>I<|
FGVb@=TO>
HelloWorld::~HelloWorld() {} u5 E/m
X%J%A-k]
void HelloWorld::on_button_clicked() 2v^lD('
{ YC)hX'A\
cout << "Hello, world!" << endl; a!u3HS-i
} R~c1)[[E
Jk*QcEE=
int main (int argc, char *argv[]) DcU C,
{ Q&wYc{TUbm
Gtk::Main kit(argc, argv);
^@q#$/z
HelloWorld helloworld; h6FgS9H
Gtk::Main::run(helloworld); 3:" &Z6t#
} GN%<"I.
MgnE-6_c
w
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Java Ki 3_N*z
import java.awt.*; (w2(qT&