“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。 .p6+l!"
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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》。 }iN2KeLAF
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以下是用不同语言写成的Hello World程序的几个例子: _D!g4"
Ada hkL5HzWn
with Ada.Text_Io; use Ada.Text_Io; E+xuWdp.*
procedure Hello is <,%:
begin U9d:@9Y
Put_Line ("Hello, world!"); Sfjje4R
end Hello; QB{rVI>mI!
v90T{1+M|4
le>Wm&E
汇编语言 )M<vAUF
$&P?l=UG
x86 CPU,DOS,TASM Xa9TS"
MODEL SMALL {bNXedZ\
IDEAL 4&^9Wklj
STACK 100H QBJ3iQs1
7S^""*Q^
DATASEG fZWGn6$
HW DB 'Hello, world!$' ||B;o-
E@)\Lc~
CODESEG Ss?CfRM
MOV AX, @data C*6S@4k
MOV DS, AX - M5=r>1;
MOV DX, OFFSET HW }ynT2a#LU'
MOV AH, 09H ug&[ IL~lc
INT 21H D^F{uDlb
MOV AX, 4C00H jFG0`n}I
INT 21H keAcKhj
END !>^JSHR4t
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vP-M,4c
x86 CPU,GNU/Linux,NASM %'Xk)-+y
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). !$qKb_#nC
;Enter this into "hello.asm" then type: T6#"8qz<
;"nasm -f elf hello.asm" kAzd8nJ'
;"ld hello.o -o hello" Jc*XXu)
;"./hello" <I*x0BM=
w5C*L)l
section .data ;data section declaration WgGm#I>K
msg db 'Hello World!',0AH XAOak$(j
len equ $-msg ;string length |01?w |
4g
_"ku
section .text ;code section declaration =d;Vk
global _start ;entry point (start of execution) D vkxI<Xa
_start: mov edx,len ;string length fp>.Owt%.
mov ecx,msg ;string start QGnxQ{ko
mov ebx,1 ;file handle: stdout +*nGp5=^GE
mov eax,4 ;sys_write }k$4/7ri
int 80h ;kernel system call #TJk-1XM*q
OJ>.-"
mov ebx,0 ;return value |VH!)vD
mov eax,1 ;sys_exit obClBO)@Y
int 80h ;kernel system call (il0M=M
]hw-Bu\{
:Waox"#=g
x86 CPU,Windows,MASM32 NY
.386 ]n1dp2aH
.model flat,stdcall R""%F#4XJ2
option casemap:none @ CsV]97`
;Include 文件定义 >
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include windows.inc =Ov7C[(
include user32.inc 0`#(Toe{B
includelib user32.lib #~ v4caNx
include kernel32.inc "`tXA
includelib kernel32.lib dXvt6kF
;数据段 ~XM[>M\qB
.data JyBp-ii
szCaption db 'A MessageBox!',0 |(IO=V4P
szText db 'Hello,world!',0 &vUq}r%P
;代码段 w:=V@-S8
.code w; TkkDH
start: GUp;AoQ
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK )6oGF>o>
invoke ExitProcess,NULL C9tb \?#
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> &]p}+{ (>
end start 8^ep/ b&|
:Hy]
@uleyB
AWK Nud,\mXrY[
BEGIN { print "Hello, world!" } |w&~g9
!AHAS
L&2u[ml
BASIC Csst[3V
传统版BASIC(例如GWBASIC): GuQRn
"PWl4a&
10 PRINT "Hello, world!" pK_?}~
20 END Fe=8O ^\
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或在提示符输入: &_-](w`
$^% N U
?"Hello, world!":END HxwlYx,4
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现代版BASIC(例如Quick BASIC): C".1+Um
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Print "Hello, world!" {ISE'GJj
X T>('qy
以下的语句在Quick BASIC中同样有效: 70gg4BS
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? "Hello,world!" +++pI.>(*Q
=
1|"-
Di(9]:+
BCPL }0/a\
GET "LIBHDR" D_D,t8_Y
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LET START () BE ;IP~Tb]&
$( Q+[ .Y&
WRITES ("Hello, world!*N") "~+.Af
$) )m#']c:rg
c[(Pg%
D guB
Befunge Jbw!:x
[
"!dlrow olleH">v POd/+e9d
, dk5|@?pe
^_@ @z,*K_AKr
F'W>
8
EA0iYzV
Brainfuck Gp2!xKgm
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ExhL[1E
+++++++++++++++.>.+++.------.--------.>+.>. ?l6jG
HYClm|
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C A" !n1P
#include <stdio.h> W
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,)#.a%EKA
int main(void) vOT*iax0
{ 3'#%c>_
printf("Hello, world!\n"); VWa|Y@Dc]
return 0; B@cz
?%]
} \+B?}P8N*l
WmVVR>0V|
VTw/_Hf2p
C++ (_8#YyW#
#include <iostream> PZOORjF8A
esq<xuZM4
int main() F=Y S^
{ [MmM 9J["
std::cout << "Hello, world!" << std::endl; &HF]\`RNr
return 0; OgMI
} zO.6WJ
[b1hC ~I;
r*d Q5
_
C++/CLI $KQ,}I
int main() >>V&yJ_
{ [j0w\{
System::Console::WriteLine("Hello, world!"); V5s&hZZYa
} n7iE8SK|k
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m5gI~1(9
C# (C Sharp) wRbw
class HelloWorldApp Bl4 dhBZoO
{ %$9:e
J?
public static void Main() #"r kuDO
{ ,cQA*;6
System.Console.WriteLine("Hello, world!"); G8P+A1
f/>
} ~e^)q>Lb7(
} [=~!w_
.mt^m
HD00J]y_
COBOL rw*M&qg!z
IDENTIFICATION DIVISION. EXHR(t}e
PROGRAM-ID. HELLO-WORLD. .0
X$rX=
F@^N|;_2
ENVIRONMENT DIVISION. 8p,>y(o
=1Sy@M bH3
DATA DIVISION. y:9?P~
|_I[1%&`N
PROCEDURE DIVISION. Wa, 7P2r
DISPLAY "Hello, world!". 88YC0!Ni
STOP RUN. E{oB2;P
gvr]]}h:O
%mmxA6I
Common Lisp Hn^sW
LT
(format t "Hello world!~%") zKMv7;s?
">,K1:(D
@Yarz1
DOS批处理 !Sfe{/$w
@echo off |VYr=hjo
echo "Hello, world!" ](n69XX_
w(#:PsMo<
j]Ua\|t
Eiffel 0STk)>3$-
class HELLO_WORLD N.vG]%1"
.S(^roM;+
creation 2D_6
make V^WQ6G1
feature x3_,nl
make is CQjV!d0j
local Tz2x9b\82
io:BASIC_IO l`qP~k#
do /rOnm=P+Q
!!io kp.|gzA6
io.put_string("%N Hello, world!") J]\s*,C&
end -- make wvX"D0eVn
end -- class HELLO_WORLD WQTendS
CP@o,v-
W=F3XYS
Erlang VAt>ji7c
-module(hello). P2 |}*h5(
-export([hello_world/0]). ~{9x6<g!
$Q#?`j
hello_world() -> io:fwrite("Hello, World!\n"). &'NQ)Dn
/LSq%~UF
Jfe~ ,cI
Forth ItMl4P`|
." Hello, world!" CR Vj29L?3
fo*!a$)
rrbZ+*U
Fortran <kROH0+
WRITE(*,10) Hc>([?P%t
10 FORMAT('Hello, World!') ?DJuQFv
STOP 1XQ87~
END ADTU{6UPS
_AVy:~/
/Ql6]8.P
HTML =":@Foa
<HTML> HH+TjX/b
<HEAD> Lax9
"xI
<TITLE> Hello World! </TITLE> 0H;"5
</HEAD> 9]"\"ka3>
<BODY> \]Kq(k[p
<p>Hello World!</p> HE9.
k.sS
</BODY> u|(aS^H=q
</HTML> LPsh?Ca?N
K,Lr+
x/pC%25
HQ9+ W=q?tD~V
H }o~Tw?z-|
~_(!}V
0m
qSA
INTERCAL h\Z3y AYd
PLEASE DO ,1 <- #13 7$;c6_se
DO ,1 SUB #1 <- #238 Z?5,cI[6#
DO ,1 SUB #2 <- #112 fN~8L}!l
DO ,1 SUB #3 <- #112 0^-z?Kb<}
DO ,1 SUB #4 <- #0 ?U7&R%Lh`
DO ,1 SUB #5 <- #64 N;%j#(v
j
DO ,1 SUB #6 <- #238 s9^"wN YQ
DO ,1 SUB #7 <- #26 h;&&@5@lM
DO ,1 SUB #8 <- #248 9?EY.}~
DO ,1 SUB #9 <- #168 m~b#:4D3
DO ,1 SUB #10 <- #24 :0i#=ODR
DO ,1 SUB #11 <- #16 A{xSbbDk
DO ,1 SUB #12 <- #158 w; yar=n
DO ,1 SUB #13 <- #52 Tom}sFl][
PLEASE READ OUT ,1 ?14X8Mb8W_
PLEASE GIVE UP pmE1EDPag
8Xt=eL/P
uOy\{5s8
Java :/I={)5
public class Hello 1"87EP
{ cx,u2~43A&
public static void main(String[] args) T1Ln)CS?9
{ Py( w T%w
System.out.println("Hello, world!"); i[V,IP +
} LGdf_M-f
} IFHgD}kp%#
l%v hV&
iX&Z
JSP R$~JhcX*l'
<% XmE_ F
out.print("Hello, world!"); #RsIxpc
%> SV$ASs
7]0\[9DyJ
3@#,i<ge :
MIXAL {RWahnr{
TERM EQU 19 the MIX console device number ^+.e5roBKj
ORIG 1000 start address DY%T`}
START OUT MSG(TERM) output data at address MSG |G5=>W
HLT halt execution _ ;v_L
MSG ALF "MIXAL" f]^ J,L9qz
ALF " HELL" eFeCS{LV+
ALF "O WOR" |$i1]Dr6
ALF "LD " 60SenHKles
END START end of the program w^vK7Z
1$
wZ#~+ }T
xfZ9&g
Nuva Wl^/=I4p#
<..直接输出..> t2U]CI%
Hello, world! $(!D/bvJ
b]s%B.h
<..或者..> IT{.^rP
;U5x'}%0]
<.
Y=#mx3.
// 不带换行 LP-KD
? "Hello, world!" #gr+%=S'6C
1Rb<(%
// 或者 M`f;-
}G0.Lq+a
// 带换行 ~P.-3
?? 'Hello, world!' 5>^ W}0s
.> qhHRR/p
]((
>i%%~
/R+]}Lt~%*
OCaml ;gw!;!T
let main () = B3k],k
print_endline "Hello world!";; -n$rKEC4
NU6Kh7
kkuQ"^<J
Pascal t.i9!'Y ]
program Hello; Y+5A2Z)f[
begin ?5+KHG*)
writeln('Hello, world!'); 7Q4PjcD
end. 6d?2{_} ,
a(QZZq};S
gpTF^.(
Perl "5z6~dq
#!/usr/local/bin/perl %0M^
print "Hello, world!\n"; eDMwY$J
`EW_pwZPA
%emPSBf@
PHP ucm.~1G(
<?php Wy-quq03"&
print("Hello, world!"); {UVm0AeUq
?> OgpH{"
Ydd>A\v\;
%}AY0fg?T
Pike B*~Bm.
#!/usr/local/bin/pike ?9ho|
int main() #;KG6I E
{ Xcpm?aTo
write("Hello, world!\n"); }\qdow-
return 0; {~{s =c0
} 7)8}8tY^{
1H@rNam&
uEO2,1+
PL/I hx;kEJ
Test: procedure options(main); }u*@b10
declare My_String char(20) varying initialize('Hello, world!'); UA u4x 7
put skip list(My_String); VX@G}3Ck
end Test; wk7_(gT`0
(+v*u ]w4
;77o%J'l
Prolog :^L]Da3
goal D{d$L9.
write("hello,world!"). KO;6 1y:
7CN[Z9Y^}
;Z~.54Pf{d
Python JBJ7k19;
#!/usr/local/bin/python ~O7(0RsCN
print "Hello, world!" 3jVm[c5%]
5WN Z7cO
-ZON']|<}k
REXX NKh{iSLm
say "Hello, world!" ZvKMRW
c\ *OId1{;
ti2_kYq
Ruby n\p\*wb
#!/usr/bin/ruby EQhV}9
print "Hello, world!\n" qiryC7.E
6(^9D_"@
U:jf9L2
Scheme R51!j>[fqM
(display "Hello, world!") ?a9k5@s
(newline) J0! E@
`v{X@ x
fb;"J+
sed (需要至少一行输入) zQ+t@;g1
sed -ne '1s/.*/Hello, world!/p' #Kr.!uD
j7+t@DqQ
u@'zvkb@
Smalltalk [LDzR7vnf
Transcript show: 'Hello, world!' tP{$}cEY
)eMh,r
nv{4
U}&P
SNOBOL kweTK]mT
OUTPUT = "Hello, world!" K7VG\Ec
END I,3!uogn
=Q/>g6
X5<.%@Z
SQL .)zISa*Xy
create table MESSAGE (TEXT char(15)); 9X` QlJ2|
insert into MESSAGE (TEXT) values ('Hello, world!'); v|2j~
select TEXT from MESSAGE; @v=q,A8_
drop table MESSAGE; <]^D({`
,?/<fxIY
R
|%
Tcl WfNMyI
#!/usr/local/bin/tcl jtY~-@*
puts "Hello, world!" =7,UqMl_
7# 3)&"j
fC|u
TScript L|w-s4L
? "Hello, world!" TMsoQ82
3Q)>gh*
R*m"'|U
Turing FM[To
put "Hello, world!" uJ[Vv4N%9
18`%WUPnT
dR:iUw:V
UNIX-style shell @~3c;9LkY
程序中的/bin/sh可改为您使用的shell efR$s{n!
-~f.>@Wb
#!/bin/sh 7bS[\5
echo 'Hello, world!' -+_twU
c"1d#8J
5 ZPUY
GUI 5zOSb$;
1+($"$ZC&B
Delphi id'#s
program HelloWorld; BH a>2N
uses It-*CD9
Dialogs; >oDP(]YGg
begin Sw'?$j^3
ShowMessage('Hello, World!'); P.DWC'IBN
end. zX`RN)C
O]eJQ4XN<
>~~\==".
Nuva Xs@ ^D,
<. Hc|U@G
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) #"-^;Z
.> "~
stZ.
*`T&Dlt'8
/GGu` f
Visual Basic ulJYJ+CC!
MsgBox "Hello, world!" \l5:A]J
'或者 Dj"=kL0
Print "Hello, world!" ;(6lN<iU
%$| k3[4V
.+h
pxZ
Visual FoxPro }j*/>m
? "Hello, world!" x`i`]6q
!Jl0Eu
>nEnX
X11 \;gt&*$-
用一个程序 ~1sl.8tF
5T#D5Z<m
xmessage 'Hello, world!' 5N<v'6&=
MiM=fIuw@s
用C++和gtkmm 2 |/s2AzDD
F:GKnbY
#include <iostream> BK SK@OV
#include <gtkmm/main.h> rd4'y~#S
#include <gtkmm/button.h> j88sE MZ
#include <gtkmm/window.h> SJ^?D8
using namespace std; -wMW@:M_
UyKG$6F?3
class HelloWorld : public Gtk::Window IkNt!
2s_
{ <W')
~o}
public: T<k1?h^7
HelloWorld(); K/m)f#
virtual ~HelloWorld(); ;o459L>sW
protected: ;I71_>m
Gtk::Button m_button; u(WQWsN
virtual void on_button_clicked(); fO!O"D5
}; [iy;}5XK
G11.6]?Gg
HelloWorld::HelloWorld() : m_button("Hello, world!") bTp2)a^G
{ y@\Q@
9
set_border_width(10); ]pTw]SK
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); \+Ln~\Sv
add(m_button); h^ $}1[
m_button.show(); Z1&GtM
} 3N0X?* (x|
f<altz_\q
HelloWorld::~HelloWorld() {} ;Jn0e:x`E
_D,f4.R
void HelloWorld::on_button_clicked() kDl4t]j
{ ?iEXFYJG
cout << "Hello, world!" << endl; fB,1s}3Hn
} |aAWWd5
ww t()
int main (int argc, char *argv[]) %g@3S!lK
{ O| 6\g>ew
Gtk::Main kit(argc, argv); 'EET3RK-S
HelloWorld helloworld; 'L|GClc6)
Gtk::Main::run(helloworld); Q>a7Ps@~
}
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Etc?; Z[F#
\i;&@Kp.N
Java 6 #x)W
import java.awt.*; Q] yT
import java.awt.event.*; 3 [)s;e
5ZyBP~
public class HelloFrame extends Frame (GcKaUg8*
{ io r [v
HelloFrame(String title) *(&ClUQQ
{ h$7Fe +#I#
super(title); !Xx<~lIC
} }#W`<,*rL.
public void paint(Graphics g) y.*=Ww+
{ <r +!hJ[s'
super.paint(g); <\d|=>;
java.awt.Insets ins = this.getInsets(); &e]]F#
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); XL7;^AE^Wl
} AXh3LA
public static void main(String args []) ZkB6bji
{ `f6)Q`n
HelloFrame fr = new HelloFrame("Hello"); bxhg*A
[cQ<dVaTX
fr.addWindowListener( X=p3KzzX
new WindowAdapter() 0ve`
{ L;--d`[
public void windowClosing(WindowEvent e) #mRFUA
{ ^?s~Fk_V
System.exit( 0 ); P"bknXL
} iIGI=EwZ
} ^YG7dd_
); uh5Pn#da^
fr.setResizable(true); ;naq-%'Sg
fr.setSize(500, 100); Q$fRi[/L
fr.setVisible(true); ovDJ{3L6O
} +=6RmId+X
} i[2bmd!H
xI@$aTGq
ljYpMv.>xG
Java Applet ]|,q|c ,
Java Applet用于HTML文件。 ws>WA{]gq
$"sq4@N
HTML代码: 1tc]rC4h
{K45~ha9!m
<HTML> zNV!@Yr
<HEAD> ePq13!FC/
<TITLE>Hello World</TITLE> JO2ZS6k[
</HEAD> 3!.H^v?
<BODY> wC(vr.,F
4{;8:ax&w
HelloWorld Program says: %@lV-(5q
Pt6hGSo.
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> Ml8 YyF/~
</APPLET> G$;]
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7Wwp )D
</BODY> m]FaEQVoE
</HTML> pg~zUOY
bJQ5- *F
Java代码: 1B)Y;hg6&
Iv$:`7|crX
import java.applet.*; K*R)V/B/l
import java.awt.*; 9wO/?
Em e'Gk
public class HelloWorld extends Applet q2x|%HRF
{ @br@[RpB
public void paint(Graphics g) :+~KPn>w5
{ f._l105.
g.drawString("Hello, world!", 100, 50); (^sh
} 1. #
|QX
} kOs(?=
m#oh?@0}
-O|&