“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。 >G4HZE
7SA-OFM
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》。 %7C%`)T]
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以下是用不同语言写成的Hello World程序的几个例子: gf3u0' $
Ada hk7(2j7B
with Ada.Text_Io; use Ada.Text_Io; 2sd ) w
procedure Hello is Y>78h2AU
begin x
tYV"
Put_Line ("Hello, world!"); Z/NGv
end Hello; "5o;z@(
X]zCTY=l
AT%*
~tr
汇编语言 \'s$ZN$k
@Hspg^
x86 CPU,DOS,TASM 8u:v:>D.'
MODEL SMALL |c06ix;).
IDEAL "o^bN 9=
STACK 100H up+.@h{
r&%gjqt
DATASEG C}(<PNT
HW DB 'Hello, world!$' vDK:v$g
P<cMP)+K
CODESEG zJnL<Q
MOV AX, @data }J+ce
MOV DS, AX pPi YPfs
MOV DX, OFFSET HW n=<NFkeX
MOV AH, 09H jy\W_CT
INT 21H + AcKB82
MOV AX, 4C00H #/n|@z'
INT 21H njy~
END ^f^-.X
TRs[ ~K)n
?
-v
x86 CPU,GNU/Linux,NASM N5q}::Odc
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). SWNU1x{,c\
;Enter this into "hello.asm" then type: 'h!h!
;"nasm -f elf hello.asm" 6)=](VmNL`
;"ld hello.o -o hello" 7af?E)}v
;"./hello" H$NP1^5!
GN:Ru|n
section .data ;data section declaration ewb*?In
msg db 'Hello World!',0AH yPf?"W
len equ $-msg ;string length (l\a '3a.
;yk9(wea}"
section .text ;code section declaration XAjd
%Xv<
global _start ;entry point (start of execution) -kG3k> by_
_start: mov edx,len ;string length )LkM,T
mov ecx,msg ;string start =8$|_
mov ebx,1 ;file handle: stdout /[\6oa
mov eax,4 ;sys_write @Ufa-h5"(
int 80h ;kernel system call e+NWmu{<_
:.C+?$iuX
mov ebx,0 ;return value Si#"Wn?|
mov eax,1 ;sys_exit R(M}0JRm
int 80h ;kernel system call gbY LA a
ry$tK"v/
Hfh@<'NL]
x86 CPU,Windows,MASM32 [GtcaX{Zz
.386 Oq #o1>
.model flat,stdcall <'r0r/0g?
option casemap:none ^c/mj9M#C
;Include 文件定义 \w{@u)h
include windows.inc Ty`-r5
include user32.inc fm3(70F\
includelib user32.lib U8 Z~Y}29
include kernel32.inc .i
MnWW
includelib kernel32.lib Q{H17]W
;数据段 2~vo+ng
.data @''&nRC1
szCaption db 'A MessageBox!',0 Jb(DJ-&
szText db 'Hello,world!',0 /)sDnJ1r
;代码段 PPUEkvH
W
.code %GM>u2baw
start: aML#Z |n
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK `-~`<#E[
invoke ExitProcess,NULL C>AcK#-x,{
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> \eEds:Hg
end start VMaS;)0f@
\M+MDT&
smQ4CLJ
AWK N2ni3M5v
BEGIN { print "Hello, world!" } J
cP~-cp
S
<2}8D
L_E^}^1!
BASIC "]v
uD
传统版BASIC(例如GWBASIC): :M@MmpPh
ojX%RU
10 PRINT "Hello, world!" `GPQ((la
20 END k69kv9v@J
' Q\ @19
或在提示符输入: ldK>HxM%Z
A_@I_V$
?"Hello, world!":END h5x*NM1Ih
n;%y
现代版BASIC(例如Quick BASIC): 3Hs$]nQ_X
9t#P~>:jY}
Print "Hello, world!" R_7
6W&
%Nl`~Kz9U
以下的语句在Quick BASIC中同样有效: zkd3Z$Ce
)^&,Dj
? "Hello,world!" tzPC/?
e]>/H8
J6DnPaw-G
BCPL CF\R<rF<VS
GET "LIBHDR" L1rwIOgq^
XjxPIdX_H
LET START () BE ?<!
nm&~
$( F%Kp9I*
WRITES ("Hello, world!*N") >'N!dM.+9
$) o_sQQF
C>4UbU
cI3 y
Befunge s1{[{L3
"!dlrow olleH">v -]/7hN*v
, =rEA:Q`~w
^_@ #9i6+. Z
Ssw&'B|o
fSjs?zd`
Brainfuck BY$[ g13
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< alc]
+++++++++++++++.>.+++.------.--------.>+.>. ;@9e\!%
t-!m
vx9Z
kQIfYtT
C :&9TW]*g
#include <stdio.h> IfMpY;ow=
0Qp[\ia
int main(void) )yrAov\z*
{ +TF8WZZF.d
printf("Hello, world!\n"); K^aj@2K{
return 0; 9#Bx]wy
} BRa{\R^I
srK53vKMHW
-TTs.O8P|<
C++ rGQ5l1</
#include <iostream> 5}XvL'
doM?8C#`
int main() ddoFaQ8
{ 84^[/d;!
std::cout << "Hello, world!" << std::endl; IC/Q
return 0; bK4&=#Zh
} O |WbFf
&\^rQi/tf
Xu6K%]i^
C++/CLI '_0
int main() 3;l "=#5
{ 5kn+
>{jh`
System::Console::WriteLine("Hello, world!"); ,Kw5Ro`I:
} 8_a3'o%5
TBnvV 5_
aMJ;bQD
C# (C Sharp) +/y]h0aa
class HelloWorldApp .$0Pr%0pWI
{ $;`I,k$0>~
public static void Main() c`jDW S
{ p411 `]Zf
System.Console.WriteLine("Hello, world!");
\bold"
} X;VQEDMPU
} :gf;}
f{ ^:3"i
.S7:;%qL6
COBOL J +q|$K6
IDENTIFICATION DIVISION. 6/1$<!WH
PROGRAM-ID. HELLO-WORLD. 74f9|~%
6 P*O&1hv
ENVIRONMENT DIVISION. J(s;$PG
X;!~<~@Y
DATA DIVISION. /oL8;:m
1bSD,;$sQ
PROCEDURE DIVISION. OipqoI2
DISPLAY "Hello, world!". "U8S81'
STOP RUN. IzUo0D*@
;Z9IZ~
<
kP+eD
Common Lisp CW`!}yu%
(format t "Hello world!~%") nIBFk?)6
*||d\peQ
c!wtf,F
DOS批处理 A,#2 ^dR
@echo off !9 f4R/ ?
echo "Hello, world!" 61@EDIYPc
Lh ap4:
JE;+T[I
Eiffel F,T~\gO5,
class HELLO_WORLD X3B{8qx_>
&tE.6^F
creation ROdK8*jL
make Yc;ec9~
feature F]_cbM{8/
make is e;ty !)]
local qZ X/@Yxz
io:BASIC_IO -JV~[-,
do GoE
'L
!!io J/ W{/E>;
io.put_string("%N Hello, world!") Qh`:<KI
end -- make *>."V5{;S
end -- class HELLO_WORLD = yXs?y"
\40YGFO
S$[k Q|Am
Erlang |vILp/"9=W
-module(hello). kWW w<cA
-export([hello_world/0]). >M;u*Go`QO
ll<NIdf\r
hello_world() -> io:fwrite("Hello, World!\n"). \Fb| {6+
51xk>_Hm}|
=Ho"N`Qy
Forth jbte
*Ae
." Hello, world!" CR =?
:@
B0Xl+JIR#
;*cLG#&'M
Fortran 0q6I;$H
WRITE(*,10) #"f'7'TE
10 FORMAT('Hello, World!') v:|(8Y
STOP r\M9_s8
END R,_d1^|*w
.v\\Tq&"|
6Bt=^~d
HTML Es'Um,ku
<HTML> LE=k
<HEAD> [aqu}Su
<TITLE> Hello World! </TITLE> x?yD=Mq_
</HEAD> & >JDPB?5
<BODY> W/+K9S25
<p>Hello World!</p> {}Ejt:rKN
</BODY> \%A%s*1
</HTML> l{WjDed
A(d5G^
Z)"61)
)
HQ9+ !<\Br
H 0pgY1i7
pW?&J>\6
3f76kl(&
INTERCAL u{f*
M,k
PLEASE DO ,1 <- #13 ,^'R_efY
DO ,1 SUB #1 <- #238 Q<"[C
1Lj
DO ,1 SUB #2 <- #112 ^ 4hO8
DO ,1 SUB #3 <- #112 Om'(mr
DO ,1 SUB #4 <- #0 bKbp?-]
DO ,1 SUB #5 <- #64 PX,rWkOce
DO ,1 SUB #6 <- #238 sz95i|@/
DO ,1 SUB #7 <- #26 &%C4Ugo
DO ,1 SUB #8 <- #248 I9y.e++/
DO ,1 SUB #9 <- #168 P=8>c'Q
DO ,1 SUB #10 <- #24 4Yjx{5QSAG
DO ,1 SUB #11 <- #16 m
<k!^jp
DO ,1 SUB #12 <- #158 bE\,}DTy
DO ,1 SUB #13 <- #52 UWXm?v2j
PLEASE READ OUT ,1 T1Ta?b
PLEASE GIVE UP mDMt5(.
Q9?t[ir
WE!vSZ3R
Java ^4$'KIq
public class Hello LXfCmc9|Z
{ pa]" iZz
public static void main(String[] args) nKh&-E
{ i%{X9!*%TX
System.out.println("Hello, world!"); DPDe>3Mi[
} &eZfQ27$
} ~P f5ORoe
8g/F)~s^F
*,WP,-0
JSP ^y_fRP~
<% %@J1]E;
out.print("Hello, world!"); 6j9)/ HP
%> oR#:NtX@
H=MCjh&$q
v90T{1+M|4
MIXAL 9}tG\0tL*
TERM EQU 19 the MIX console device number )M<vAUF
ORIG 1000 start address df*w>xS
START OUT MSG(TERM) output data at address MSG Xa9TS"
HLT halt execution +Ezgn/bS&
MSG ALF "MIXAL" Cpl;vQ
ALF " HELL" {U!uVQC'
ALF "O WOR" aw $L$7b}
ALF "LD " 1&)_(|p[C
END START end of the program TCVl8)j
l5t2\Fl
KpiF0K
Nuva M^madx6`
<..直接输出..> ]> !<G8=N
Hello, world! B5am1y{P#
b!>\2DlyJ
<..或者..> H}0dd"
;e8V
+h
<. ,d,\-x-+/
// 不带换行 ]gb=
? "Hello, world!" MQ/
A]EeL
Ze^jG-SL$9
// 或者 I*[tMzE
!$qKb_#nC
// 带换行 T6#"8qz<
?? 'Hello, world!' VDEv>u4
.> d.<~&.-$
>um!Eo
?:rx1}:F
OCaml +FFG#6e
let main () = ?>uew^$d[w
print_endline "Hello world!";; E">T*ao
kUHE\L.Y]
Lm)\Z P+W
Pascal b
B
program Hello; |I8Mk.Z=FA
begin mXWTm%'[
writeln('Hello, world!'); !mfJpJ
end. M@UVpQwgv
j0-McLc
WT3gNNx|
Perl zri}
h/{
#!/usr/local/bin/perl ;-mdi/*g
print "Hello, world!\n"; 7hNb/O004
Xo5$X7m
F
8yF
PHP WPuz]Ty
<?php L wJ0
print("Hello, world!"); 7()?C}Ni-
?> |KCOfVh?|.
*6ZCDm&N
`i!wq&1g7
Pike / l>.mK()
#!/usr/local/bin/pike P1kB>"bR
int main() %"3 )TN4
{ pJpNO$$w
write("Hello, world!\n"); my\&hCE
return 0; n[+'OU[
} .#6MQJ]OH
|cbd6e{!
jRZ%}KX
PL/I N_wp{4 0/
Test: procedure options(main); lPq\=V
declare My_String char(20) varying initialize('Hello, world!');
a=}*mF[ug
put skip list(My_String); ~4 #B'Gy[
end Test; '"YYj$>
'
t=wXTK5"
Ggm` ~fS
Prolog -e -e9uP
goal 93%{scrm
write("hello,world!"). _]>JB0IY
7ETjn)%bs
|^n3{m
Python Gm8E<iTP
#!/usr/local/bin/python T|4snU2M
print "Hello, world!" Q4'C;<\@(Q
!XE aF]8
%CH6lY=lI
REXX 6F0(aGs
say "Hello, world!" @"87F{!
rGwIcx(%
#;r]/)>
Ruby Utl
t<
#!/usr/bin/ruby j
BS4vvX?
print "Hello, world!\n" Lubrn"128
Pe^!$
4iX-( ir,
Scheme K'b*A$5o
(display "Hello, world!") 7k8n@39?
(newline) d"<F!?8
QTJu7^O9
E,"&-`/2v
sed (需要至少一行输入) pa/9F[
sed -ne '1s/.*/Hello, world!/p' vs9?+3
UZxmhsv
]#eh&jw
Smalltalk yXfMzG
Transcript show: 'Hello, world!' /'&;Q7!)
hl/itSl$
nfE@R."A
SNOBOL .KA V) So"
OUTPUT = "Hello, world!" T_hV%
END dk5|@?pe
@z,*K_AKr
%efGt6&
SQL oK+Lzb\d{M
create table MESSAGE (TEXT char(15)); sg?@qc=g
insert into MESSAGE (TEXT) values ('Hello, world!'); }[=YU%[o:
select TEXT from MESSAGE; "dCzWFet
drop table MESSAGE; AlX3Wv}
g:~+Pe
/&s}<BMHU
Tcl
H!eh
J$[
#!/usr/local/bin/tcl ,;iA2
puts "Hello, world!" x-Z^Q C
C3"&sdLb$
`iYc<N`
TScript rw u3Nb
? "Hello, world!" zy)i1d
ZgYZwc&-
2P}I'4C-
Turing ~[18q+,
put "Hello, world!" P;U@y"s
zixEMi[8
KTmaglgp
UNIX-style shell j$PI,`
程序中的/bin/sh可改为您使用的shell L|67f4
(V9h2g&8L
#!/bin/sh gGbI3^r#
echo 'Hello, world!' h}6_ybmZ
eV;me>,
j%xBo:
GUI )Vk:YL++
&oN/_7y
Delphi 2%YXc|gGT
program HelloWorld; E+{5-[Zc*$
uses m5gI~1(9
Dialogs; wRbw
begin ~3 @*7B5Q
ShowMessage('Hello, World!'); jgRCs.6
end. -Enbcz(B
chLeq
\(u@F<s-
Nuva n~%}Z[5D
<. 7^wE$7hS
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ^x3EotQ\
.> HD00J]y_
rw*M&qg!z
EXHR(t}e
Visual Basic -tP.S1D
MsgBox "Hello, world!" :uvc\|:s
'或者 ?!m ma\W
Print "Hello, world!" j],&z^O$
qw0~*0}
yA}nPXrd
Visual FoxPro ZgBckb
? "Hello, world!" *1,=qRjL
88YC0!Ni
E{oB2;P
X11 [x$;XqA
用一个程序 %mmxA6I
Hn^sW
LT
xmessage 'Hello, world!' ASq`)Rz
">,K1:(D
用C++和gtkmm 2 @Yarz1
?\d5;%YSr
#include <iostream> 5~yQ>h
#include <gtkmm/main.h> ](n69XX_
#include <gtkmm/button.h> |rFJ*.nD
#include <gtkmm/window.h> ChVY
Vx(
using namespace std; 7YD\ !2b
!xH,y
class HelloWorld : public Gtk::Window 8E=vR 8
{ M;PlSb
public: o[imNy~ ~
HelloWorld(); *V<)p%l.
virtual ~HelloWorld(); #4lHaFq
protected: =x oBC&u
Gtk::Button m_button; \`&xprqAw
virtual void on_button_clicked(); )2toL5 Q
}; Pgx+\;w"
rr>IKyI'
HelloWorld::HelloWorld() : m_button("Hello, world!") 9Mnem*
{ ID+,[TM`
set_border_width(10); |&(H^<+Xp
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Ho>p ^p
add(m_button); i(z+a6^@|
m_button.show(); (\tq<h0
} R rxRa[{Z
_3I3AG0e
HelloWorld::~HelloWorld() {} t3K>\ :
v(a9#bMZU
void HelloWorld::on_button_clicked() EI<"DB
{ HoMQt3C
cout << "Hello, world!" << endl; g8Ok ^
} 5#P: "U
;g6 nHek
int main (int argc, char *argv[]) x}uwWfe 3
{ 1RmBtx\<
Gtk::Main kit(argc, argv); YBR)s\*
HelloWorld helloworld; l;XUh9RF`A
Gtk::Main::run(helloworld); #T
Z!#,q
} N4'
.a=1
EWSr@}2j
.
}1l}- w`F
Java o:h)~[n|
import java.awt.*; Ni&,g
import java.awt.event.*; )0'Y et}
4;08n|C
public class HelloFrame extends Frame imC&pPBB/G
{ 9tW3!O^_
HelloFrame(String title) $4ka +nfU
{ <<i=+ed8eP
super(title); !d/`[9jY
} hU |LFjc
public void paint(Graphics g) <?{ SU
{ no eb f
super.paint(g); *sIi$1vHu
java.awt.Insets ins = this.getInsets(); rD_Ss.\^g
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); V=:,]fTr
} ^XtHF|%0T
public static void main(String args []) M|5^':Y
{ rjfc.l#v
HelloFrame fr = new HelloFrame("Hello"); =9#i<te
}S
Y`KoC1
fr.addWindowListener( *9\oD~2Y
new WindowAdapter() 9?EY.}~
{ OFJJ-4[_3
public void windowClosing(WindowEvent e) 0]f?Dx/8
{ @Z"QA!OK~c
System.exit( 0 ); P1M|f4*
} <e@I1iL37y
} qg/Y;tGSx
); &Z#Vw.7U
fr.setResizable(true); FZ;YvdX6
fr.setSize(500, 100); ]IN-
fr.setVisible(true); g;|
n8]
} M)bC%(xJ
} C`=`Ce~|d
%a%+!wX0x
#$9U=^Z[
Java Applet D|
3AjzW
Java Applet用于HTML文件。 ^v()iF
!
hfVzzVX:
HTML代码: ?,A8 fR
>rQ)|W=i
<HTML> @pyA;>U
<HEAD> y0W`E/1t
<TITLE>Hello World</TITLE> *GY,h$Ul
</HEAD> D(W7O>5vQ2
<BODY> qCv}+d)
qX}dbuDE"P
HelloWorld Program says: <ZN)
/,4PS
>xk:pL*o`
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> m"ki*9]
</APPLET> ^$^Vd@t>a
vCrWA-q#
</BODY> NWq [22X
|
</HTML> 2n\i0?RD
oWn_3gzw;
Java代码: OmQuAG
^\x
zjhR9
import java.applet.*; YjMbd?v
import java.awt.*; TO8\4p*tE
\p_8YC
public class HelloWorld extends Applet
Q}`2Y^.
{ h_}BmJ h_
public void paint(Graphics g) lqwJ F &
{ ce-m)o/
g.drawString("Hello, world!", 100, 50); (,Zz&3
AV
} +=lcN~U2
} YQw/[
#6#BSZ E
HEW9YC"
java script &