“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}{{>2r
O_f+#K)
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》。 CdTyUl
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以下是用不同语言写成的Hello World程序的几个例子: .^?^QH3
Ada Ar+<n 2;[
with Ada.Text_Io; use Ada.Text_Io; BUuU#e5
procedure Hello is 2'R&K
begin vPVA^UPNV
Put_Line ("Hello, world!"); Bn[5M[
end Hello; Esc*+}ck
Qp~W|zi(
:+Pl~X"_
汇编语言 G)I lkA@
5]Wkk~a
x86 CPU,DOS,TASM ,| \62B`
MODEL SMALL Qx_K)
IDEAL o9tvf|+z
STACK 100H /1Xji0LK
+O@v|}9"w3
DATASEG `=]I-5#.W
HW DB 'Hello, world!$' a"!D @a
:&]THUw
CODESEG WHV]H
MOV AX, @data 8:BPXdiK
MOV DS, AX )/'y'd<r
MOV DX, OFFSET HW -H@Gyw
MOV AH, 09H bdn{Y
INT 21H ([-xM%BI6
MOV AX, 4C00H 6j]pJ]F6
INT 21H JsOu
*9R
END ] -6=+\]
;2m<#~@0
%N"9'g>
x86 CPU,GNU/Linux,NASM u1?1x
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). w3^>{2iqq
;Enter this into "hello.asm" then type: 4eSV(u)4
;"nasm -f elf hello.asm" [qHLo>HaL
;"ld hello.o -o hello" Y)x(+#
;"./hello" erG;M! 9\
G<1awi
section .data ;data section declaration 2?]NQE9lA
msg db 'Hello World!',0AH {r9fKA
len equ $-msg ;string length ]-o0HY2
3^>D |
section .text ;code section declaration MP Ma
global _start ;entry point (start of execution) ?i.]|#{Z
_start: mov edx,len ;string length ")l_>y?
mov ecx,msg ;string start @v1f)(N
mov ebx,1 ;file handle: stdout oG! S(95
mov eax,4 ;sys_write 3{mu 77
int 80h ;kernel system call @"*8nV#
\9T;-]
mov ebx,0 ;return value v{ F/Bifo
mov eax,1 ;sys_exit Ns6Vf5T.
int 80h ;kernel system call Ea%}VZ&[
jk0Ja@8PK
t]Ey~-Rx
x86 CPU,Windows,MASM32 i,=CnZCh
.386 qDqgU
.model flat,stdcall ^L&hwXAO:
option casemap:none !]tZE%?
;Include 文件定义 L#'B-G4&y
include windows.inc U>^u!1X
include user32.inc s=lkK/ [
includelib user32.lib *KP
60T
include kernel32.inc RlU=
includelib kernel32.lib pn6 e{
;数据段 1mw<$'pm0
.data ?)9mHo^
szCaption db 'A MessageBox!',0 I!y[7^R
szText db 'Hello,world!',0 I|=$.i
;代码段 W&[}-E8<Y
.code z.f~wAT@<
start: ;C8'7
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK F=C8U$'S
invoke ExitProcess,NULL Gc)
Zu`67
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ,c:Fa)-
end start '|r('CIBN/
3AWNoXh
c43"o
AWK iw|6w,-)C
BEGIN { print "Hello, world!" } h(hb?f@1:
.S&S#}$/]
N{@kgc
BASIC DiF=<} >x
传统版BASIC(例如GWBASIC): .^^YS$%%7
X*Mw0;+T
10 PRINT "Hello, world!" NQ$tQ#chd
20 END 1!. CfQi
iG*3S)
或在提示符输入: KOWx P47b
{ U a19~'>
?"Hello, world!":END K#g)t/SZ
'`&gSL.1a@
现代版BASIC(例如Quick BASIC): 3&:Us|}
K?o( zh;
Print "Hello, world!" A-x; ai]
xCGa3 X
以下的语句在Quick BASIC中同样有效: 3cfW|J
g|ewc'y
? "Hello,world!" e=&,jg?K
kN_
i0~y@-
z)p(
l!
BCPL |fqYMhA U
GET "LIBHDR" KM
li!.(b
BC*62m
LET START () BE x`~YTOfYk
$( 'ol8l Ia.P
WRITES ("Hello, world!*N") BBuI|lr
$) eM{u>n+`F0
9tU"+
NTD1QJ
Befunge q01 L{~>bz
"!dlrow olleH">v 5q*s_acQ
, }A+ncabm
^_@ ZM})l9_o"
?$K-f:?c
S9Oz5_x
Brainfuck =y-yHRC7
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< F{;#\Ob
+++++++++++++++.>.+++.------.--------.>+.>. SGSyO0O
26g]_Igq
vRH^en
C Cyd/HTNh<
#include <stdio.h> QK?V^E
t 8 6w&
int main(void) &O'W+4FAc
{ j[r}!;O
printf("Hello, world!\n"); b9j}QK
return 0; tRoSq;VrS
} Z@Rm^g]o
ahl|N`
rRe5Q
C++ geG0F}oC!
#include <iostream> eQ>Ur2H8n
u nv:sV#b
int main() {>ba7-Cy+y
{ R{@saa5I(>
std::cout << "Hello, world!" << std::endl; hV7EjQp
return 0; `PUqz&
} bsQ'kBD
P'<i3#;7X
if'=W6W
C++/CLI Ij#mmj NW
int main() ud/!@WG
{ ']nIa7
System::Console::WriteLine("Hello, world!"); "uBnK!
} MRpMmu
t1Ts!Q2
s-CAo~,
C# (C Sharp) Gld~GyB\k
class HelloWorldApp :qo[@ x{
{ q'jOI_b
public static void Main() *ra)u-
{ :BxO6@>Xc
System.Console.WriteLine("Hello, world!"); 8-G )lyfj
} WM+8<|)n
} FS"Ja`>j~
n{QyqI
q{9vY:`[
COBOL #eJfwc1JY
IDENTIFICATION DIVISION. ':4ny]F
PROGRAM-ID. HELLO-WORLD. u(Mbp$R'?
]G[ "TX,
ENVIRONMENT DIVISION. L\4rvZa
v6)QLp
DATA DIVISION. ?c8~VQaQ
|)7K(R)(=
PROCEDURE DIVISION. =o(}=T>:"
DISPLAY "Hello, world!".
m}yu4
STOP RUN. `ulQ C
@JSWqi>
*A9v8$
Common Lisp 8J,^O04<
(format t "Hello world!~%") 0j$=KA
2[B bdg[O
0@_8JB ?E
DOS批处理 S:!5|o|
@echo off )nHMXZ>Td
echo "Hello, world!" TY]0aw2]|7
4s
m [y8
/,I?"&FWc
Eiffel 9?Bh8%$
class HELLO_WORLD b#7nt ?`7p
}'<Z&NW6
creation 7UBW3{d/u5
make rE*yT(:w
feature *`OXgkQ
make is OC5oxL2HTe
local '0f!o&?g
io:BASIC_IO /;_$:`|/
do }*XF- U
!!io e[k\VYj[
io.put_string("%N Hello, world!") #NT~GhWFf
end -- make Rq15AR
end -- class HELLO_WORLD em'3 8L|(
SMvlEj^
1mgw0QO
Erlang `mkOjsj &
-module(hello). qw4wg9w5p
-export([hello_world/0]). 2;:]Q.g
CEk[&39"
hello_world() -> io:fwrite("Hello, World!\n"). |x.[*'X@
XPYf1H
W*H %\Y:N
Forth 7<jr0)
." Hello, world!" CR d}E6d||A
=]Y'xzJuu
[Qk j}
Fortran D6_#r=08
WRITE(*,10) 0Q%I[f8
10 FORMAT('Hello, World!') <O9WCl
STOP ">|L<
END v]drDVJ
N*w{NB 7L
I~
SFY>s
HTML AxJf\B8
<HTML> :v-,-3AG
<HEAD> #$t93EI
<TITLE> Hello World! </TITLE> /4BYH?*
</HEAD> [:Odb?+ `F
<BODY> .dBW{|gN
<p>Hello World!</p> b#e|#!Je
</BODY> LrfyH"#!:
</HTML> UJX5}36
wd:SBU~f5*
5geZ6]|
HQ9+ () HIcu*i
H ]s_BOt
2L2)``*
vw
q Y;7
INTERCAL Vzrp9&loY
PLEASE DO ,1 <- #13 [ \i1I`7pE
DO ,1 SUB #1 <- #238 T8QRO%t
DO ,1 SUB #2 <- #112 -/qu."9(B
DO ,1 SUB #3 <- #112 rUF= uO(
DO ,1 SUB #4 <- #0 r+l3J>:K
DO ,1 SUB #5 <- #64 } SA/,4/9
DO ,1 SUB #6 <- #238 m>?{flO
DO ,1 SUB #7 <- #26 'r`-J4icX
DO ,1 SUB #8 <- #248 ,e>N9\*
DO ,1 SUB #9 <- #168 0jwex
DO ,1 SUB #10 <- #24 ;-sF%c
DO ,1 SUB #11 <- #16 93N:?B9
DO ,1 SUB #12 <- #158 <N;HB&mr
DO ,1 SUB #13 <- #52 Pd<>E*>}c.
PLEASE READ OUT ,1 {@[z-)N7\,
PLEASE GIVE UP E^jb#9\R
bjJ212J
Vz&!N/0i
Java >'lte&
public class Hello Go_~8w0<
{ 1vBXO bk
public static void main(String[] args) j kIgEF2d*
{ 5Y97?n+6
System.out.println("Hello, world!"); 4h~o>(Sq
} ',p`B-dw
} oos7x6
J;g+
cA4xx^~
JSP +K%4jIm
<% 3 tp'}v
out.print("Hello, world!"); LN?W~^gsR
%> .5zqpm
=)3tVH&
QuJ)WaJkC
MIXAL #yv_Eb02
TERM EQU 19 the MIX console device number KZw"?%H[
ORIG 1000 start address nDSmr
START OUT MSG(TERM) output data at address MSG :.IVf Zw
HLT halt execution c6;tbL
MSG ALF "MIXAL" .j}dk.#h
ALF " HELL" Lh6G"f(n
ALF "O WOR" h`OX()N
ALF "LD " M3350
END START end of the program d3AOuVUf
Q0I22?
R;gN^Yjk:
Nuva AAE8j.
<..直接输出..> ^|?/
y=
Hello, world! "]81+
D
G-[fz
<..或者..> S$Tc\/{
LoQm&3/
<. i:wTPR
// 不带换行 t8,s]I&
? "Hello, world!" Tp&03
Rw\
LVRdA
// 或者 K%ltB&
s88lN=;
// 带换行 F'DO46
?? 'Hello, world!' 8S[`(]
)
.> sXdNlR&
\e64Us>"x
w:P$S
OCaml Q<.847 )
let main () = 4i>sOP3
B
print_endline "Hello world!";; 1H{M0e
A\9QgM
."<mL}Fi(
Pascal y| *X
program Hello; )'BuRN8
begin o;+$AU1f
writeln('Hello, world!'); TQyi-Dc
end. A`x_M!m
ZtPq*/'
FMCX->}$
Perl ,b2YUb]U
#!/usr/local/bin/perl F3$@6J8<[z
print "Hello, world!\n"; rnvKfTpZDU
1'wwwxe7
O`_!G`E
PHP AV\6K;~
<?php QZ!;` ?(
print("Hello, world!"); #?/&H;n_8S
?> fG2hCP+
&eYnO~$!
X_yAx)Do
Pike ;fLYO6
#!/usr/local/bin/pike qP6Yn JWl
int main() by z2u
{ o";5@NH
write("Hello, world!\n"); l<fZt#T
return 0; 'r;C(Gh6
} gFR9!=,/V%
Y)*5M
=WFn+#&^
PL/I :<$B o
Test: procedure options(main); NV 6kj=r
declare My_String char(20) varying initialize('Hello, world!'); X=O}k&
put skip list(My_String); \*{tAF
end Test; Jj=0{(X
rv>K0= t0
{k.Dy92
Prolog x8H%88!j*
goal 5fpBzn$
write("hello,world!"). N\ nr
n{oRmw-
N<bNJD}
Python ?@W=bJ8{
#!/usr/local/bin/python A#&Q(g\YE
print "Hello, world!" {oIv%U9
XEd|<+P1
JN;92|x
REXX HD"Pz}k4
say "Hello, world!" 1QHCX*_
d0(GE4+/
{)^P_zha[9
Ruby }q0lbwYlb
#!/usr/bin/ruby XAN{uD^3\%
print "Hello, world!\n" oO @6c %
]T^m>v)X
/db?ltb
Scheme YH<F~F _
(display "Hello, world!") '*>LZo4
(newline) /_,~dt
=[{Pw8['
ENC_#-1x
sed (需要至少一行输入) W~k!qy `
sed -ne '1s/.*/Hello, world!/p' ;~]&$2sk
n{BC m %
3N+P~v)T'
Smalltalk CG9X3%xO%
Transcript show: 'Hello, world!' JIb<>X,
_$ixE~w-!
FZ=6x}QZ
SNOBOL MVt#n\_BZV
OUTPUT = "Hello, world!" #]lUJ
&M}e
END pDkT_6Q
X8Sk
I J4"X#Q/
SQL x(]s#D!)
create table MESSAGE (TEXT char(15)); ]nX.zE|F
insert into MESSAGE (TEXT) values ('Hello, world!'); FG#j0#|*
select TEXT from MESSAGE; ]3={o3[:
drop table MESSAGE; ;g*X.d
$#RD3#=?u
m6;Xo}^w
Tcl w|L~+
#!/usr/local/bin/tcl ?G?=,tV
puts "Hello, world!" K6Gc)jp:b
A^K,[8VX
U~H'c
p
TScript ]#BXaBVMY
? "Hello, world!" )D[ypuM&
Y43#];
k oHY
AF
Turing l4/TJ%`MG
put "Hello, world!" 4|2$b:t
N!h>fE`
.oK7E(Q J
UNIX-style shell ?ft_
程序中的/bin/sh可改为您使用的shell &)X<yd0
4X\*kF%
#!/bin/sh > T-O3/KN
echo 'Hello, world!' 6VE >$`m
Cfi2N V
T^nX+;:|
GUI 4O`h%`M
EmUxM_T/2
Delphi WuNu}Ibl}m
program HelloWorld; yBe/UFp+
uses b@X@5SJFW
Dialogs; 0iL8i#y*
begin E1C8yIF
ShowMessage('Hello, World!'); L_.}z)S[\
end. Za f)
!<LS4s;
W" !amMQ
Nuva _@p|A
<. K$]QzPXS
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) lET)<V(Y
.> b5|p#&YK~
wMUnZHd{|
EsWszpRqb
Visual Basic m2! 7M%]GC
MsgBox "Hello, world!" oTfbx+i/G
'或者 ^~aSrREo
Print "Hello, world!" U .Od
u l%bo%&~
2|=_kN8;
Visual FoxPro :acQK=fe
? "Hello, world!" uUe\[-~
ocbB&
WO5O?jo'
X11 3f Xv4R;!:
用一个程序 >Hb^P)3
#m{{a]zm^
xmessage 'Hello, world!' WF&[HKOy/
thi1kJ`L
用C++和gtkmm 2 v44}%$
Lf([dE1
#include <iostream> ]r!>{
#include <gtkmm/main.h> []R? ViG
#include <gtkmm/button.h> qW:)!z3\
#include <gtkmm/window.h> 1 2++RkL#
using namespace std; V-I(WzR9y
1be %G [*
class HelloWorld : public Gtk::Window 3nZ9m
{ OJN2z
public: w@-PqsF
HelloWorld(); a {}|Bf<
virtual ~HelloWorld(); L9Z;:``p
protected: <^~FLjsfg
Gtk::Button m_button; Q-Ux<#
virtual void on_button_clicked(); \$aF&r<R
}; fJ\sguZ
)VCzn~uf
HelloWorld::HelloWorld() : m_button("Hello, world!") x83
!C}4:
{ &zQ2M#{82
set_border_width(10); `b8v1Os^2
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); i&njqK!wS
add(m_button); F62V3 Xy
m_button.show(); o-xDh7v
} q#Zs\PD
QB:i/9
HelloWorld::~HelloWorld() {} 6C>_a*w
n9pN6,o+
void HelloWorld::on_button_clicked() Q%/<ZC.Mz6
{ 4!asT;`'
cout << "Hello, world!" << endl; -U<Upn)2
} 1:NrP'W^
aK,z}l(N
int main (int argc, char *argv[]) <9=9b_z
{ dC=)^(
Gtk::Main kit(argc, argv); t NsPB6Z
HelloWorld helloworld; cJM:
Gtk::Main::run(helloworld); RH}A
} 1Z[/KJ
vA$o~?a]/
w;Q;[:y
Java 2&+#Vsm`V
import java.awt.*; Ggh.dZI4
import java.awt.event.*; g}laG8
<Dx]b*H
public class HelloFrame extends Frame 8 #ndFpu
{ Tirux ;
HelloFrame(String title) /8VP[i)u
{ Xtwun
super(title); axHK_1N{
} @fuM)B1"
public void paint(Graphics g) Q'k\8'x
{ X2tk[Kr
super.paint(g); 9]t[J_YM
java.awt.Insets ins = this.getInsets(); [D5t{[i
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); >3awn*N
} dd?x(,"A`
public static void main(String args []) {lth+{&L#
{ =AVgIv
HelloFrame fr = new HelloFrame("Hello"); 0&ByEN99
O]f/r,4@
fr.addWindowListener( 3] 1-M
new WindowAdapter() "O8gJ0e
{ /ywD{*
public void windowClosing(WindowEvent e) b$k&dT\o
{ ++L?+^h
System.exit( 0 ); uxg9yp@|
} v(OBXa9
} Mg#j3W}]
); #_mi `7!B#
fr.setResizable(true); %gnM(pxl
fr.setSize(500, 100); s4_/&h
fr.setVisible(true); 9 2MTX
Osp
} ?Qb<-~~
j1
} Th`skK&U
LQnkcV
iJnU%
Java Applet Pmi#TW3X
Java Applet用于HTML文件。 ^IKO2Ft
{_RWVVVe
HTML代码: x\2?ym@
bVmAtm[
<HTML> @pGZLq
<HEAD> W4;m H}#0
<TITLE>Hello World</TITLE> !L5jj#0
</HEAD> 1_$xSrwcF
<BODY> )XQ`M?**M
5unG#szq
HelloWorld Program says: #S%Q*k<hw
+l^LlqA
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> */ G<!W
</APPLET>
9;Fbnp'
-st7_3
</BODY> Hn,:`mj4-6
</HTML> 6)pH|d.FR
n6F/Ac:
Java代码: UR(-q
4E44Hzs
import java.applet.*; zU6a'tP
import java.awt.*; !?
^h;)a
JcJmds
public class HelloWorld extends Applet (2?G:+C 7
{ @{h?+
d
public void paint(Graphics g) >-E<