“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。 `GLx#=Q
ptaKf4P^r
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》。 Alq(QDs
qxj(p o
以下是用不同语言写成的Hello World程序的几个例子: jb)ZLA;L_c
Ada *NQ/UXE
with Ada.Text_Io; use Ada.Text_Io; \)Cl%Em
procedure Hello is v` r:=K
begin phz&zlD
Put_Line ("Hello, world!"); .S4u-
end Hello; oL<St$1
|[y6Ua0
dF2RH)Ud
汇编语言 2Z%O7V~u
D43z9z-:L
x86 CPU,DOS,TASM ss-D(K"
MODEL SMALL }K9H^H@r!
IDEAL yh=N@Z*zP
STACK 100H 8b=_Y;
5LMw?P.<
DATASEG LH6vLuf
HW DB 'Hello, world!$' =BrRYA
K>
e7pu
CODESEG >R=|Wo`Ri
MOV AX, @data FiU#T.`9'
MOV DS, AX Ir]\|t
MOV DX, OFFSET HW ?@8[e9lLD
MOV AH, 09H 8;X-)&R
INT 21H FgO)DQm
MOV AX, 4C00H Hx:;@_gq
INT 21H yDS4h(^
END wA.\i
=\d?'dII:
c[e}w+uB
x86 CPU,GNU/Linux,NASM -{A<.a3P}=
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 2Rz
;Enter this into "hello.asm" then type: 1 {)Q[#l
;"nasm -f elf hello.asm" \j.:3Xr
;"ld hello.o -o hello" @ .KGfNu
;"./hello" FPTK`Gd0
h7@6T+#WoT
section .data ;data section declaration g
`4<9RMun
msg db 'Hello World!',0AH B-ESFATc
len equ $-msg ;string length "w_aM7x_
i?;Kq~,
section .text ;code section declaration 'f|o{
global _start ;entry point (start of execution) L rPkxmR
_start: mov edx,len ;string length 4.(4x&
mov ecx,msg ;string start |&jXp%4T
mov ebx,1 ;file handle: stdout w=@Dv
mov eax,4 ;sys_write YoE3<[KD(
int 80h ;kernel system call JN6B~ZNf
'm9` 12H
mov ebx,0 ;return value uVU)d1N
mov eax,1 ;sys_exit rQ9'bCSr%
int 80h ;kernel system call P>6{&(
k_R"CKd
r%N)bNk~
x86 CPU,Windows,MASM32 tI{_y
.386 @lt#Nz
.model flat,stdcall 1nOCQ\$l
option casemap:none bN88ua}k{
;Include 文件定义 |Ds=)S"
K
include windows.inc A(N4N
include user32.inc 1&$ nVQ
includelib user32.lib +^<](z
include kernel32.inc cGD(.=
includelib kernel32.lib \C1nZk?3
;数据段 ,=N.FS
.data $7uA%|\
szCaption db 'A MessageBox!',0 HorDNRyu
szText db 'Hello,world!',0 p<;0g9,1
;代码段 ,Lt[\_
.code iyog`s c
start: Xry47a
)
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK %07SFu#
invoke ExitProcess,NULL l@:0e]8|o
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> $mB;K]m
end start .{KVMc
Lh<).<S
6 aV_@no.C
AWK hpJ-r
BEGIN { print "Hello, world!" } 3k?X-|O8AZ
abEmRJTmW
-!9G0h&i|
BASIC Mc}^LDX
传统版BASIC(例如GWBASIC): Y4(
llsfTrp
10 PRINT "Hello, world!" *\q
d
20 END MJrR[h]
'P}0FktP`
或在提示符输入: .>nRzgo
8sCv]|cn
?"Hello, world!":END ],v=]+R
]0\MmAJRn
现代版BASIC(例如Quick BASIC): O| hpXkV
+'w3 =2Bo
Print "Hello, world!" r"R#@V\'1b
ri.I pRe
以下的语句在Quick BASIC中同样有效: zv"Z DRW
Hq 188<
? "Hello,world!" .GcKa024
as_PoCoss
C6yuX\
BCPL eR" <33{
GET "LIBHDR" BF <ikilR
Z(!\%mn
LET START () BE !?gKqx'T$
$( 2 Vrw
WRITES ("Hello, world!*N") 1'\/,Es
$) IaXeRq?<
.6'qoo_N
O7IJ%_A&
Befunge alvrh'51
"!dlrow olleH">v 6K<K
, Tu 7QCr5*
^_@ v}Fr@0%
JO<wU
"w.3Q96r
Brainfuck WeiFmar
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 3%ZOKb"D*
+++++++++++++++.>.+++.------.--------.>+.>. *=c1do%F
mdgi5v
;d9QAN&0}
C D5HZ2cz|a
#include <stdio.h> "FKOaQ%IH
#YOA`m,'
int main(void) 1y4
{ fwf$Co+R:*
printf("Hello, world!\n"); $p?aVO
return 0; %|i`kYsy
} ^ovR7+V
Y.r+wc]
`$C
n~dT
C++ 8pgEix/M5o
#include <iostream> 'X2POay1
u-5{U-^_
int main() b%/ 1$>_
{ NTI+
std::cout << "Hello, world!" << std::endl; }~e%J(
return 0; H+Sz=tg5
} 1 Ya`| ?FS
A$:U'ZG_
j ?(&#
C++/CLI ^M>P:~
int main() KMjhZap%
{ R!N%o~C2-
System::Console::WriteLine("Hello, world!"); \)?HJ
} "!%l/_p?
nQ,HMXj
`lt"[K<
C# (C Sharp) Gk /fBs
class HelloWorldApp X(-4<B
{ ~O&:C{9=
public static void Main() .=jay{
{ %Q dn
System.Console.WriteLine("Hello, world!"); kq,ucU%>p
} 1^(ad;BCy
} ;x@~A^<el
"~C,bk
8q}q{8
COBOL V /V9B2.$
IDENTIFICATION DIVISION. BKjS ,2C
PROGRAM-ID. HELLO-WORLD. 7Da`
h{HHLR
ENVIRONMENT DIVISION. k{SAvKx=
d,n 'n
DATA DIVISION. [e}]}t8m
(c
&mCJN
PROCEDURE DIVISION. 8C9-_Ng`
DISPLAY "Hello, world!". DX
K?Cv71z
STOP RUN. <;Zmjeb+#
(rm?jDm
I75DUJqy]
Common Lisp &AbNWtCV+G
(format t "Hello world!~%") -0x
#
\ Et3|Iv
oHn
Ky[1
DOS批处理
=.]4;z
@echo off SmSH2m-
echo "Hello, world!" e [mm
6.nCV0xA
FSW_<%
Eiffel <+vw@M
class HELLO_WORLD +Kbjzh3<wG
iVq'r4S
creation F%D.zvKN
make 9H`XeQ.
feature sZ/v^xk
make is 0*D$R`$
local WuUk9_g
io:BASIC_IO zL `iK"N`
do
MC.)2B7
!!io ofw3S|F6
io.put_string("%N Hello, world!") qm8B8&-
end -- make JNXq.;:`Q
end -- class HELLO_WORLD 2?ez,*-[
UIN<2F_
hAnPXiD
Erlang
>rKIG~P_
-module(hello). }.m<
-export([hello_world/0]). =QiI :|eRA
mQ26K~
hello_world() -> io:fwrite("Hello, World!\n"). (b-MMr
+V046goX W
9} M?P
Forth ?:I* 8Fj
." Hello, world!" CR hVAn>_(
NzOx0WLF
"2$fi{9
Fortran ryUQU^v
WRITE(*,10) Tc`=f'pP)4
10 FORMAT('Hello, World!') peuZ&yK+"
STOP Ep3N&Imp
END O$j7i:G'5
'3DXPR^B6
ca*DZG/
HTML ']z{{UNUN
<HTML> jrr*!^4|
<HEAD> Mhf5bN|wQ
<TITLE> Hello World! </TITLE> &n}f?
</HEAD> O#~yKqB
<BODY> }1i`6`y1
<p>Hello World!</p> gANuBWh8T
</BODY> &zeyE;/Hj
</HTML> wX5tp1 ?1J
?u=Fj_N_
`FDiX7M
HQ9+ dx{bB%?Y\=
H s6v;
sF?TmBQ*
# 0Q]dO
INTERCAL hl (hJfp
PLEASE DO ,1 <- #13 1&evG-#<:
DO ,1 SUB #1 <- #238 Gm.T;fc:
DO ,1 SUB #2 <- #112 >xYpNtEs
DO ,1 SUB #3 <- #112 9gEwh<
DO ,1 SUB #4 <- #0 C>j@,G4
DO ,1 SUB #5 <- #64 ]kRfB:4ED
DO ,1 SUB #6 <- #238 _] sn0rX
DO ,1 SUB #7 <- #26 1AfnzGvA
DO ,1 SUB #8 <- #248
}mq6]ZrK
DO ,1 SUB #9 <- #168 a85$K$b>
DO ,1 SUB #10 <- #24 xU>WEm2
DO ,1 SUB #11 <- #16 RD'Q :W
DO ,1 SUB #12 <- #158 l%pu HZ)t
DO ,1 SUB #13 <- #52 5Y'qaIFR
PLEASE READ OUT ,1 ~f1%8z
PLEASE GIVE UP lVR~Bh
_j/<{vS y
#TX/aKr:
Java E+R1 !.
public class Hello q`H_M{26!y
{ mD0f<gJ1
public static void main(String[] args) ith
3=`3
{ M!A}NWF
System.out.println("Hello, world!"); A8fOQ
} ;F!5%}OcL%
} q?oP?cCw
wQH<gJE/:
(*nT(Adk
JSP K>r,(zgVc
<% &(G\[RWp\
out.print("Hello, world!"); gk[aM~p
%> zH4D 8@[7O
?{|q5n
AOWmzu{zw
MIXAL |\<`Ib4j
TERM EQU 19 the MIX console device number v/0QOp
ORIG 1000 start address j4qR(p(vC
START OUT MSG(TERM) output data at address MSG qL&[K>2z
HLT halt execution }Jve cRtg1
MSG ALF "MIXAL" W*4-.*U8a
ALF " HELL" ox>^>wR*
ALF "O WOR" .TMs bZ|j
ALF "LD " ^aMg/.j
END START end of the program g\(G\ tnu>
)}]g]
g
S)k*?dQ##R
Nuva *1
]uH e
<..直接输出..> EXwo,?I
Hello, world! oMD>Ywc-
1i"WDu*h3
<..或者..> 5k3n\sqZA
2LL'J7
<. {3p4:*}
// 不带换行 tl4V7!U@^z
? "Hello, world!" =J]]EoX/
,p@y]
cr
// 或者 *,)Md[
`* ["UER
// 带换行 k\YG^I
?? 'Hello, world!' a|x.C6Pe
.> axRV:w;E<
FQ2
a
%'the
OCaml P[#e/qnXu|
let main () = RtP2]O(F
print_endline "Hello world!";; Xy&A~F
6BHXp#
#z
Ovt.!8
Pascal }DEg-j,F
program Hello;
0hNA1Fh{U
begin Gg3,:A_ w
writeln('Hello, world!'); y$F'(b|)
end. AGO+p(6d=g
Ae^~Cz1qz
3!Ij;$
Perl t r3!d_
#!/usr/local/bin/perl p8H'{f\G
print "Hello, world!\n"; -.@r#d/
A*R^n}sh
ZW8vza
PHP y8Z_Itlf
<?php o&zJ=k[4
print("Hello, world!"); cAqLE\h
?> (KD RkE|=
qIE9$7*X
[nG<[<0G;
Pike 2K6qY)/_
#!/usr/local/bin/pike c|B('3h
int main() 18d4fR
{ o>i4CCU+
write("Hello, world!\n"); A5RN5`}
return 0; H8zK$!
} ufZDF=$7
Bz-c$me1
D~fl JR
PL/I f:,DWw`B
Test: procedure options(main); 8f4b&ah
declare My_String char(20) varying initialize('Hello, world!'); \?ZB]*Fu
put skip list(My_String); #s(BuVU
end Test; 5iw<>9X*
SC!RbW@3
f4b/NG|
Prolog )Y0!~#
`
goal G1tY) _-8[
write("hello,world!"). t]g-CW3
w"|L:8
Z'W=\rl
Python ;_I8^? d
#!/usr/local/bin/python q=m'^
,gPS
print "Hello, world!" g\:[
55;8
-%CP@dAk
|\t-g"~sN
REXX f:w?pE
say "Hello, world!" PO^ij2eS
JPUW6e07o
D&
i94\vVa
Ruby mb3"U"ohs
#!/usr/bin/ruby .},'~NM]
print "Hello, world!\n" F4z{LhZ
o4,6.1}
EU;9*W<
Scheme aCj&O:]=
(display "Hello, world!") +Q)XH>jh
(newline) X-Kh(Z
gzT*-
1#2 I
sed (需要至少一行输入) At>DjKx]O
sed -ne '1s/.*/Hello, world!/p' g%I"U>!2
j0aXyLNX
XFpjYwn
Smalltalk ]7BvvQ
Transcript show: 'Hello, world!' !hy-L_wL]
w3_>VIZJl
A,<E\
SNOBOL i$#;Kpb`^
OUTPUT = "Hello, world!" lNh70G8^p
END >T-u~i$s
]p GL`ge5
~jk|4`I?T
SQL a#k6&3m&
create table MESSAGE (TEXT char(15)); hWLA<wdb
insert into MESSAGE (TEXT) values ('Hello, world!'); /-'}q=M
select TEXT from MESSAGE; ^
VyKd
drop table MESSAGE; 1n8/r}q'H
@*XV`_!h
xm~`7~nFR
Tcl @b%=H/5\
#!/usr/local/bin/tcl JFmC\
puts "Hello, world!" G>}255qY
vn8aFA
1R%.p7@5QU
TScript 3;9^
? "Hello, world!" qYQl,w
+3BN}
Dml;#'IF3
Turing Ic<2QknmP
put "Hello, world!" Gb6 'n$g
d7y[0<xM
Bkc4TO
UNIX-style shell >Cp0.A:UC#
程序中的/bin/sh可改为您使用的shell uH^-R_tQ
8dA~\a
#!/bin/sh vI>w e
echo 'Hello, world!' K5h
*?vCC+c
H%tdhu\e
GUI (%6P0*
g$-PR37(
Delphi 9.-S(ZO
program HelloWorld; rs[T=C Q
uses ;[DU%f
Dialogs; zC!t;*8a
begin 9cF[seE"0
ShowMessage('Hello, World!'); 8TKnL\aar
end. V}CG:9;
_TZRVa_
h438`
Nuva mq.`X:e
<. C<tl/NC
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) dZ@63a>>@
.> J/$&NWF
2%m BK
&p@O_0nF
Visual Basic
qEOhwrh
MsgBox "Hello, world!" Yj49t_$b
'或者 v\ )W?i*l
Print "Hello, world!" M%m4i9~!?
(L&d!$,Dv
[z{1*Xc
Visual FoxPro {!L~@r
? "Hello, world!" 9Y9GwL]T
:5<UkN)R(
#;yZ
X11 #;e:A8IQ
用一个程序 6bC3O4Rw
x 9fip-
xmessage 'Hello, world!'
}my`K
S,UDezxg
用C++和gtkmm 2
v!5 `|\
a1lh-2xX
#include <iostream> q0vQa
#include <gtkmm/main.h> kDxFloK
#include <gtkmm/button.h> u6JM]kR
#include <gtkmm/window.h> rEWb"
using namespace std; Svmy(w~m
wc4=VC"y
class HelloWorld : public Gtk::Window ~f98#43
{ kl:Bfs)b
public: /U9"wvg
HelloWorld(); f]CXu3w(J
virtual ~HelloWorld(); VTE .^EK!
protected: ;e *!S}C,
Gtk::Button m_button; 7!E,V:bt'
virtual void on_button_clicked(); sO@Tf\d
}; zrb}_
B]tQ(s~
HelloWorld::HelloWorld() : m_button("Hello, world!") {P_.~0pc*
{ kxv1Hn"`{E
set_border_width(10); YaqJ,"GlT
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 7kEn \
add(m_button); \4fQMG
m_button.show(); c^W)07-X5y
} a:w#s}bL
j#ab_3xH
HelloWorld::~HelloWorld() {} ^1];S^nD
G 3ptx!
D
void HelloWorld::on_button_clicked() @j/a=4o[
{ <LiPEo.R
cout << "Hello, world!" << endl; #ABZ&Z
} tR$NRMZ.
i/Zd8+.n$
int main (int argc, char *argv[]) 7%M_'P4 V
{ wibNQ`4k
Gtk::Main kit(argc, argv); cvL;3jRo
HelloWorld helloworld; s~X%Y<9l
Gtk::Main::run(helloworld); =I_'.b
} w}L[u
r;I_
S
f#
R0SA
9->if/r,o
Java "w<#^d_6
import java.awt.*; R:qW;n%AF
import java.awt.event.*; ZN0P:==
~P-mC@C
public class HelloFrame extends Frame w7L)'9
{ 4Z0]oIX
HelloFrame(String title) G3T]`Atf
{ |[8Th4*n
super(title); 9\(|
D#
} Q3?F(ER@
public void paint(Graphics g) p]c%f2E>d
{ ;O,jUiQ
super.paint(g); qHsA1<wg
java.awt.Insets ins = this.getInsets(); N;%6:I./
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); f$QNg0v
} v3>UV8c'
public static void main(String args []) JucY[`|JV
{ y@yD5$/
HelloFrame fr = new HelloFrame("Hello"); 8&dF
\9EjClfo
fr.addWindowListener( E]r?{t`]
new WindowAdapter() owv[M6lbD
{ H\[W/"
public void windowClosing(WindowEvent e) wMN]~|z>
{ &K,i
f
System.exit( 0 ); R4d=S4i
} a 1*p*dM#
} S+lqA-:
); "0TZTa1e
fr.setResizable(true); Iq.*8Oc
fr.setSize(500, 100); tZo} ;|~'
fr.setVisible(true); '|=;^Z7.K
} zm;C\s rF
} GC'O[q+
2X&qE}%k S
[2cD:JL
Java Applet _@/8gPT*i
Java Applet用于HTML文件。 j] [,J49L
q@2siI~W
HTML代码: pfI&E#:5
I%Z
<HTML> Dvln/SBk
<HEAD> e+K^Aq
<TITLE>Hello World</TITLE> BJ(M2|VH
</HEAD> 08{@rOr
<BODY> Etm?'
w4Z'K&