“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。 `R=_t]ie
sT"tS>
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》。 CH_Dat>
h*X%:UbW
以下是用不同语言写成的Hello World程序的几个例子: TboHP/
Ada L!Zxc~
with Ada.Text_Io; use Ada.Text_Io; t:j07 ,1~
procedure Hello is 6%hEs6-R
begin [,?A$Z*Z|
Put_Line ("Hello, world!"); f+88R=-u6S
end Hello; @f01xh=8
u9~V2>r\
s1b\I6&:J
汇编语言 -N!soJ<
<Phr`/
x86 CPU,DOS,TASM {^O/MMB\\%
MODEL SMALL SVEA
IDEAL lG^nT
STACK 100H &l}xBQAL
T7Qd
I[K%b
DATASEG X%\6V;zR#
HW DB 'Hello, world!$' B46H@]d#7K
DdZ_2B2
CODESEG `YU:kj<6
MOV AX, @data \7w85$
MOV DS, AX 5}^08Xl
MOV DX, OFFSET HW !rmo*-=^=
MOV AH, 09H T[9jTO?W2
INT 21H 2i'-lM=
MOV AX, 4C00H btz3f9
INT 21H +O:pZz
END +#"Ic:
(V%vFD1)
3:gO7Uv
x86 CPU,GNU/Linux,NASM v@1Jhns
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Hw. @Le>
;Enter this into "hello.asm" then type: `,]PM)iC
;"nasm -f elf hello.asm" -#z'A
;"ld hello.o -o hello" n~cm?"
;"./hello" 8i$`oMv[y
#:5g`Ch4,
section .data ;data section declaration ~5qZs"ks
msg db 'Hello World!',0AH f6A['<%o
len equ $-msg ;string length jl%eO.
1UWgOCc
section .text ;code section declaration EC\:uK
global _start ;entry point (start of execution) ~=]@],{
_start: mov edx,len ;string length k 5kX
mov ecx,msg ;string start 'Bn_'w~j{
mov ebx,1 ;file handle: stdout qBrZg
mov eax,4 ;sys_write y(BLin!O.
int 80h ;kernel system call MBrVh6z>
.Eyk?"^
mov ebx,0 ;return value jsht2]iq3K
mov eax,1 ;sys_exit %SFR.U0}yK
int 80h ;kernel system call wq`Kyhk
`D4'`Or-U
mP+yjRw
x86 CPU,Windows,MASM32 on&=%tCAL
.386 Y-k~ 7{7
.model flat,stdcall MM$"6Jor
option casemap:none
:@'0)7
;Include 文件定义 tF1%=&ss
include windows.inc ^u&Khc~
y
include user32.inc WC; a
includelib user32.lib jmVy4* P_
include kernel32.inc \(t>(4s_~
includelib kernel32.lib ;AA7wK 4
;数据段 #mxfU>vQ:
.data j@\/]oL^We
szCaption db 'A MessageBox!',0 k$- q;VI
szText db 'Hello,world!',0 Eu~wbU"%
;代码段 JU+'UK630
.code KftM4SFbK
start: Pu*UZcXY
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK |W];v@b\y
invoke ExitProcess,NULL J~`%Nj5>
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> $F$R4?_
end start UeeV+xU
}r<^]Q*&p
RIx6& 7$
AWK iFchD\E*o
BEGIN { print "Hello, world!" } UHHKI)(
.[s82c]]6
Tz~ftf
BASIC +>({pHZ<S
传统版BASIC(例如GWBASIC): !Hj)S](F
|^!@
10 PRINT "Hello, world!" 5W-M8dc6
20 END ;itg>\p3
rmJ847%y`
或在提示符输入: <Wq{ V;$
/hR]aw
?"Hello, world!":END }-iOYSn
kfECC&"
现代版BASIC(例如Quick BASIC): ]`9K|v
=%G[vm/-)
Print "Hello, world!" qE=OQs9
Vtk|WV?>P+
以下的语句在Quick BASIC中同样有效: bUL9*{>G
' "
yl>"
? "Hello,world!" =_3qUcOP
vH8%a8V
]iX$p~riH
BCPL :N:8O^D^<
GET "LIBHDR" )S?}huX
H.K`#W&
LET START () BE w+P^c|
$( yBKlp08J
WRITES ("Hello, world!*N") d69VgLg
$) L@GD$F=<0
^2@~AD`&h
(Ad!hyE(
Befunge o|C{ s
"!dlrow olleH">v 63$m& ]x
, essW,2,rjC
^_@ ;Bi{;>3
?Qk#;~\yB
)CQ}LbX Zy
Brainfuck 3Re\ T
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Ev#aMK
+++++++++++++++.>.+++.------.--------.>+.>. . %7A7a
4f,x@:Jw
+06j+I
C lNAHn<ht
#include <stdio.h> WQ`T'k#ESW
i(rY'o2 BN
int main(void) G$<0_0GF
{ Y.#+Yh[
printf("Hello, world!\n"); *h6i9V%'
return 0; 1A`";E&
} (0f^Hh wF
LcF3P
4
:LG%8Z{R
C++ A4h/oMis
#include <iostream> g.s oNqt=
\$"Xr
int main() ;_\P;s
{ p60D{UzU
std::cout << "Hello, world!" << std::endl; Eq{TZV
return 0; O ?Tg`] EX
} ?Y* PVx9Y
YZ@-0_Z
\f#ao<vQm
C++/CLI !f6
int main() :DJ@HY
{ w4a7c
System::Console::WriteLine("Hello, world!"); 5;Xrf=
} ;"z>p25=T
9v0|lS!-
Ea?.HRxl
C# (C Sharp) Ags`%(
class HelloWorldApp <&iBR
{ (z7#KJ1+Aw
public static void Main() cK&oC$[r-
{ =@o}
System.Console.WriteLine("Hello, world!"); 63=m11Z4
} H;1}Nvvd
} ;\N*iN#K
$EF@x}h:A
g_U69
z
COBOL X Rn=;gK%J
IDENTIFICATION DIVISION. Lw`\J|%p
PROGRAM-ID. HELLO-WORLD. ej+!|97M
3I+pe;
ENVIRONMENT DIVISION. C+5nft6:
`>Cx!sYhV
DATA DIVISION. >^&+,*tsS4
r8rR _M{P
PROCEDURE DIVISION. oV`sCr5%
DISPLAY "Hello, world!". \Z':hw
STOP RUN. \ 714 Pyy
*bEsWeP
Z]<_a)>
Common Lisp <h({+N
(format t "Hello world!~%") L%FL{G
C#>C59
tUQ)q
DOS批处理 d/1XL[&
@echo off s9iM hCu|
echo "Hello, world!" \BL9}5y
@#apOoVW>
Sls>
OIc
Eiffel 4KCxhJq
class HELLO_WORLD L@XeAEIq
\~PFD%]:3
creation ?F/3]lsggT
make *rLs!/[Z_
feature )T?ryp3ev
make is KXJHb{?
local k&b>-QP6
io:BASIC_IO ~
4aaJ0
do Lg1Usy%
!!io ,tZwXP{
io.put_string("%N Hello, world!") )c/]
8KU
end -- make @_{"ho
end -- class HELLO_WORLD |Bp?"8%*l
/!hW6u5
$Tg$FfD6&
Erlang C7#$s<>TO
-module(hello). U,'n}]=4A3
-export([hello_world/0]). :&m(W Z\
#=rR[:M
hello_world() -> io:fwrite("Hello, World!\n"). J5k%
iwbjjQPr
V~;YV]1Y
Forth S4w/
kml3
." Hello, world!" CR VZ8L9h<{"
Qxwe,:
5WUrRQ?E
Fortran C7{w I`~
WRITE(*,10) x+pFu5,
10 FORMAT('Hello, World!') Ero3A'f
STOP o#i{/#oF
END =u(fP" |{
yFSL7`p+
cnR>)9sX
HTML 5 F-Q&
<HTML> U:Y?2$#
<HEAD> h>wU';5#f
<TITLE> Hello World! </TITLE> bm;4NA?Gg
</HEAD> ]9' \<uR
<BODY> rhrlEf@
<p>Hello World!</p> ]Uu/1TTf
</BODY> |fUSq1//
</HTML> tVO x
$[Fk>d
5M*p1^ >
HQ9+ =F9-,"EAI
H mWh:,[o
+ '`RJ,K+[
5GKz@as8
INTERCAL 9g7T~|P
PLEASE DO ,1 <- #13 %^S1 fUwT
DO ,1 SUB #1 <- #238 zSu2B6YU}
DO ,1 SUB #2 <- #112 7%hMf$KQ
DO ,1 SUB #3 <- #112 sdb#K?l
DO ,1 SUB #4 <- #0 7$ 'ja
DO ,1 SUB #5 <- #64 /vu7;xVG
DO ,1 SUB #6 <- #238 WI%,m~
DO ,1 SUB #7 <- #26 `)'YU^s
DO ,1 SUB #8 <- #248 L,i-T:Z~=
DO ,1 SUB #9 <- #168 }sFHb[I &
DO ,1 SUB #10 <- #24 FW2} 9#R
DO ,1 SUB #11 <- #16 OHU(?TBo
DO ,1 SUB #12 <- #158 >a<;)K^1
DO ,1 SUB #13 <- #52 \?j(U8mB>
PLEASE READ OUT ,1 *d=pK*g
PLEASE GIVE UP |
!Knd ^}
wegBMRQVp
zIu1oF4[
Java H_{Yr+p
public class Hello ,D8Tca\v
{ D3]_AS&\
public static void main(String[] args) W|:WAxJ*d
{ QZX+E
System.out.println("Hello, world!"); WDcjj1`l
} di|l?l^l
} Cd4G&(=
B#=dz,}
rB4]TQ`c
JSP G]{)yZ'}
<% y0xte&
out.print("Hello, world!"); >">-4L17m
%> 139_\=5|U/
Y9ru~&/o$
hGsYu )
MIXAL ~sOAm
TERM EQU 19 the MIX console device number q N>j2~
ORIG 1000 start address *p"%cas
START OUT MSG(TERM) output data at address MSG %
74}H8q_z
HLT halt execution .A E(D7d6
MSG ALF "MIXAL" Yv>% 5`
ALF " HELL" =dPrG=A
ALF "O WOR" +S$x}b'5q
ALF "LD " ZPXxrmq%
END START end of the program s\@!J.Da
hUqIjc uL4
5( 3tPbm{
Nuva GE|V^_|i
<..直接输出..> `,J\E<4J
Hello, world! L9T|* ?||
_s^sZ{'2_
<..或者..> 'h$1vT
T5ol2
<. :p89J\
// 不带换行 _f/6bpv
? "Hello, world!" biQDupTz
|1#*`2j\=9
// 或者 sq_
f[!
OF}vY0oiw?
// 带换行 z&w@67
>j
?? 'Hello, world!' %k9GoX_
.> BV|LRB}G
"lB[IB)
n;[d{bU
OCaml [S4<bh!
let main () = XLB7
E
print_endline "Hello world!";; )Zox;}WK+
k/>k&^?
Z<`QDBN"4
Pascal 3qP!
(*
program Hello; nBR4j?':i
begin ZjWI~"]
writeln('Hello, world!'); />H9T[3=
end. #}o*1
}5`Kn}rY
L^dF
)y?
Perl Y-v6xUc{F
#!/usr/local/bin/perl (m13
ong
print "Hello, world!\n"; `j9 ;9^
A2..gs/
arm26YA-,
PHP X-=49)
<?php fTMn
print("Hello, world!"); EW]rD
?> #V@[<S2
;tlvf?0!
,VI2dNst\
Pike tmKHT
#!/usr/local/bin/pike #mFIZMTRd
int main() J.$N<.
{ EjrK.|I0
write("Hello, world!\n"); RGsgT ^
return 0; a0~LZQ?
} .r4*?>
N:_.z~>%
F P3{Rp
PL/I *|Tx4Qt
Test: procedure options(main); Vmt$]/
declare My_String char(20) varying initialize('Hello, world!'); Pd)mLs Jg
put skip list(My_String); 3VaL%+T$,
end Test; 3%P<F>6
J
"\3C)Nz?
~m3Q^ue
Prolog yhc}*BMZ
goal a[I
: ^S
write("hello,world!"). mb,\ wZ
vhvFBx0
L xP%o
Python 1R-WJph
#!/usr/local/bin/python {\hjKP
print "Hello, world!" f3^Anaa]l
{u~JR(C:
]lqLC
REXX 9(6f:D
say "Hello, world!" 3N257]
Lcb5^e?'Q
Y7BmW+
Ruby HAwdu1$8
#!/usr/bin/ruby 5X&Y~w,poU
print "Hello, world!\n" 2u Zb2O
g-? @a
@Z.BYC
Scheme 42M_ %l_
(display "Hello, world!") 41g
"7Mk
(newline) CVE(N/&b
s5h}MXIXw
MroN=%|t
sed (需要至少一行输入) xIA] 5@;a
sed -ne '1s/.*/Hello, world!/p' OYSq)!:
'hR0JXy
GHY+q{'#V_
Smalltalk |P@N}P@
Transcript show: 'Hello, world!' ,R.rxoO
gu|=uW K
Wn2'uZ5If
SNOBOL BMug7xl"
OUTPUT = "Hello, world!" -^+fZBU;
END <p/zm}?')
0 30LT$&!
.+A)^A
SQL _ _!LTpp
create table MESSAGE (TEXT char(15)); D6-R>"}
insert into MESSAGE (TEXT) values ('Hello, world!'); 't6l@_x
select TEXT from MESSAGE; ZLP/&`>8
drop table MESSAGE; tq}MzKI*
/% g+|C
bmu] zJ
Tcl _o[fjd
#!/usr/local/bin/tcl /k8I6
puts "Hello, world!" <?s@-mpgN
{xx}xib3
"}MP {/
TScript q
#mBNe62p
? "Hello, world!" =p^$>o
k4a51[SYBK
_3(rwD
Turing !wN2BCSY@
put "Hello, world!" 9 ,:#Q<UM
k@
<dru
HjIIhl?UY
UNIX-style shell vJxEF&X
程序中的/bin/sh可改为您使用的shell `;Ho<26
yts@cd`$
#!/bin/sh <8(=Lv`)q
echo 'Hello, world!' 4GbfA
.u
}4N'as/ZO
8OKG@hc
GUI qg{gCG
/78]u^SW
Delphi ((C|&$@M
program HelloWorld; M!+J[q
uses QEg[
Dialogs; ~Oa$rqu%m
begin *?BY+0
ShowMessage('Hello, World!'); +j{(NwsX
end. XwUa|"X6
?r KbL^2
f`:GjA,J$
Nuva - w*fS,O
<. jYi,oE
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 1aQm r=,
.> Tf~eH!~0
iLch3[p%
m^!:n$
Visual Basic 4j~q,#$LW
MsgBox "Hello, world!" k:I,$"y4
'或者 OHi.5 (
Print "Hello, world!" +N=HI1^54R
T?Kh'
1^LdYO?g'
Visual FoxPro ("\{=XAQ
? "Hello, world!" u"q56}Q?]
vP x/&x
;Ax-f04gG
X11 \o}T0YX
用一个程序 P&sWn?q Ol
)w0x{_
xmessage 'Hello, world!' +!0K]$VZs
Gsv<Rjj:
用C++和gtkmm 2 lhHH|~t0
ydy TDn
#include <iostream> g]lEG>y1R
#include <gtkmm/main.h> N]w_9p~=1
#include <gtkmm/button.h> O`c+y
#include <gtkmm/window.h> #m,H1YH
M
using namespace std; `0\Z*^>
PFuhvw~?
class HelloWorld : public Gtk::Window uG^CyM>R`
{ @>HTbs6W
public: i+h*<){X
HelloWorld(); >*RU:X
virtual ~HelloWorld(); Hl`OT5pNf
protected: l3sF/zkH
Gtk::Button m_button; |]4!WBK
virtual void on_button_clicked(); T[Zs{S
}; HwHF8#D*l
O;~e^ <*
HelloWorld::HelloWorld() : m_button("Hello, world!") }3^m>i*8
{ d
#1Y^3n
set_border_width(10); H"FK(N\
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); *{3d+j/?/
add(m_button); lG)wa
m_button.show(); \P*_zd@%
} l)9IgJ|<b
bZNqv-5 4h
HelloWorld::~HelloWorld() {} B W<Dmn
Z#Mm4(KNh
void HelloWorld::on_button_clicked() 7pm'b,J<
{ r }lGcG)
cout << "Hello, world!" << endl; N[po)}hp
} k5I;Y:~`
[3jJQ3O,
int main (int argc, char *argv[]) F{0\a;U@^
{ !l9{R8m>eJ
Gtk::Main kit(argc, argv); pcy;]U?
HelloWorld helloworld; <{isWEW9]3
Gtk::Main::run(helloworld); I.n,TJoz4J
} xvV";o
BM<q;;pO
9B!Sv/)y!r
Java mux/\TII
import java.awt.*; QWk3y"5n<
import java.awt.event.*; YI g(^>sq
cD0rU8x
public class HelloFrame extends Frame {Sf[<I
{ ,WRm{v0f^
HelloFrame(String title) U05;qKgkDF
{ OP`f[lCiL
super(title); inWLIXC,
} ,X.[37
public void paint(Graphics g) z:>cQUYl
{ 2aj1IBnz6/
super.paint(g); 8:$h&aBI
java.awt.Insets ins = this.getInsets(); t(u2%R4<d
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); =]%JTGdp(
} vN Bg&m
public static void main(String args []) |NuMDVd+s
{ krUtOVI
HelloFrame fr = new HelloFrame("Hello"); Vh^y6U<
^ Oh
fr.addWindowListener( `,qft[1
new WindowAdapter() fB8, )&
{ #7]Jz.S
public void windowClosing(WindowEvent e) ,U~A=bsa
{ BpZ~6WtBq
System.exit( 0 ); lL}NiN-)t
} 'X;cgAq8(
} (`1io
); G-d7}Uz?
fr.setResizable(true); pey=zR!
fr.setSize(500, 100); h}
`v0E
fr.setVisible(true); l=E86"m
} A7%d
} lU{)%4e`
n 9B5D:.G
fpR|+`k
Java Applet PVI Oe}N
Java Applet用于HTML文件。 /65YHXg,
-G(me"Cu
HTML代码: .nPOjwEx&Y
JOJ.79CT
<HTML> XQo\27Fo
<HEAD> BU:;;iV8
<TITLE>Hello World</TITLE> =W~7fs
</HEAD> ON,[!pc
<BODY> i#'K7XM2
MgeC-XQM
HelloWorld Program says: |Xt.[1
Tn&