“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。 \UqS -j|
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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》。 kEhm'
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以下是用不同语言写成的Hello World程序的几个例子: %m{.l4/!O
Ada 1"&;1Ts
with Ada.Text_Io; use Ada.Text_Io; D?yE$_3>c
procedure Hello is H9VXsFTW
begin |\|)j>[i
Put_Line ("Hello, world!"); ``|RO[+2
end Hello; dMs||&|&
{{*]bGko
q7f;ZK=f
汇编语言 *UBP]w
2k}-25xxL
x86 CPU,DOS,TASM )HX:U0
MODEL SMALL (s$u_aq77
IDEAL ? x"HX|n
STACK 100H !@<@QG-
[Z5[~gP3
DATASEG -9>LvLU
HW DB 'Hello, world!$' dG-or
XQ3*
CODESEG 4Kn9*V
MOV AX, @data ur<eew@8@i
MOV DS, AX S1^nC tSF
MOV DX, OFFSET HW ;=-j;x
MOV AH, 09H 6L,lq;
INT 21H {(z(NgXG/
MOV AX, 4C00H U M( l%
INT 21H /X^3=-{8
END yw.~trF&%
+rsl(
08FY
]oeuIRyQ
x86 CPU,GNU/Linux,NASM J,0pe\5
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ^0~c7`k`V
;Enter this into "hello.asm" then type: !/6\m!e|1R
;"nasm -f elf hello.asm" g+ }s:9
;"ld hello.o -o hello" ;EJPrDHTk
;"./hello" inPE/Ux
8pk#sJ51
section .data ;data section declaration f(6UL31
msg db 'Hello World!',0AH P}hY{y'
len equ $-msg ;string length Z.:<TrN
~mK-8U4>K,
section .text ;code section declaration +~
3w5.8
global _start ;entry point (start of execution) NSS4vtA
_start: mov edx,len ;string length sB( `[5I
mov ecx,msg ;string start s[3![
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mov ebx,1 ;file handle: stdout ZUXse1,
mov eax,4 ;sys_write s~LZOPN
int 80h ;kernel system call *5y
W
n{64g+
mov ebx,0 ;return value G(As%r]
mov eax,1 ;sys_exit 9p2>`L
int 80h ;kernel system call 6Lg!Lodu
<AMb!?Obh
xvR?~
x86 CPU,Windows,MASM32 [A"H/Qztk
.386 'h^-t^:<>b
.model flat,stdcall #9$V
08
option casemap:none 5#0A`QO
;Include 文件定义 0R@g(
include windows.inc 3w/( /|0
include user32.inc crd|2bjp+
includelib user32.lib _Z+jQFKJ\8
include kernel32.inc [`.3f'")j
includelib kernel32.lib S<eZ d./p6
;数据段 }XCR+uAz
.data q%-&[%l
szCaption db 'A MessageBox!',0 .Vo"AuC}
szText db 'Hello,world!',0 -9OMn}w/*
;代码段 (Qk&g"I
.code [,O`MU
start: Fn86E dFM
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK d7"U WY^
invoke ExitProcess,NULL Ecxj9h,S
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> {sC@N![
end start T-9k<,>?
bZ>&QM
YH[XRUa
AWK {*QvC
g?
BEGIN { print "Hello, world!" } Nush`?]J"_
cQT1Xi
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BASIC ytjK++(T5
传统版BASIC(例如GWBASIC): `'p`PyMt`
Fn:.Y8%-
10 PRINT "Hello, world!" VQ`,#`wV
20 END &/](HLdF
iV?` i
或在提示符输入: 8[{|xh(
Abj97S
?"Hello, world!":END Z-(} l2\
s$DGd
T)
现代版BASIC(例如Quick BASIC): i2$*}Cu
`n
3FT=
Print "Hello, world!" \F 3C=M@:
M#OHY*
以下的语句在Quick BASIC中同样有效: /Q?~Q0{)es
dgS4w@)@V;
? "Hello,world!" )xB$LJM8
i?F[||O"$
Ovvny$
BCPL XtCoX\da
GET "LIBHDR" Bul.RCP'
aXe{U}eow
LET START () BE QU:EY'2
$( pT4qPta,2
WRITES ("Hello, world!*N") NEA_Plt
$) XwcMt r*
3 brb*gI_b
a3Y{lc#z}
Befunge hUVk54~l
"!dlrow olleH">v ^J8uhV;w
, |~SE"
^_@ #2 \8?UPd
eSl]8BX_
9C_*3?6
Brainfuck Oe/6.h?
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< vQUZVq5M
+++++++++++++++.>.+++.------.--------.>+.>. "2a$1Wmj(
0Cl,8P
<B!'3C(P
C ##H;Yb
#include <stdio.h> =HVfJ"vK
`dDa}b
int main(void) 2\VAmPG.Zs
{ Yx5J$!Ld
printf("Hello, world!\n"); 4E2yH6l
return 0; ejVdxVr \7
} F\5X7ditD
WSQ[.C
{O)YwT$`
C++ ]}kI)34/
#include <iostream> \yNQQ$B
lW
p~t
int main() EY kj@
.,
{ wf?u(3/%
std::cout << "Hello, world!" << std::endl; .(|+oHg<
return 0; 4r\*@rq
} tQrS3Hz'nA
.`,F
:X_CFW
C++/CLI \eQla8s
int main() vQ 4}WtvA
{ |zq4* 5
System::Console::WriteLine("Hello, world!"); Bz+.Qa+
} 2{-!E ^g
p%F8'2)}
4U?<vby
C# (C Sharp) U/Wrh($ #4
class HelloWorldApp -/>9c-F
{ "V4Q2T
T
public static void Main() vt.P*Z5
{ }taLk@T
System.Console.WriteLine("Hello, world!"); y}N&/}M:}8
} qe$33f*
} j$Nf%V 6Y
(S|a 9#
(YwalfG {C
COBOL 9~c~E/4!
IDENTIFICATION DIVISION. 1"?]= j:
PROGRAM-ID. HELLO-WORLD.
:Hk_8J
$2KK:{VX
ENVIRONMENT DIVISION. _1
pDA
/Pvk),ca
DATA DIVISION. nL+p~Hi
o'Wz*oY))\
PROCEDURE DIVISION. 5;mRGY
DISPLAY "Hello, world!". >7'+ye6z
STOP RUN. i5"5&r7r
BFWi(58q
WuM C^
Common Lisp r?p[3JJ;mG
(format t "Hello world!~%") EyY],W1 Y
^gOww6$ <
Z~p!C/B
DOS批处理 y<uAp
@echo off X&a:g
echo "Hello, world!" q$gz_nVq,b
E ]B7
D`pQ7
Eiffel 5qbq,#Pf
class HELLO_WORLD :"QfF@Z{
NQX>Qh
2
creation o0ZBi|U\4
make S8" f]5s
feature zrRFn `B
make is Z/<#n\>t0>
local #f{lC0~vA
io:BASIC_IO
:+ Jt^
6
do ET:T7
!!io 1u~ MXGF
io.put_string("%N Hello, world!") "3fBY\>a
end -- make Icx7.Y
end -- class HELLO_WORLD mnjs(x<m
u5Up&QE!>q
2-dh;[4
Erlang 3K>gz:dt
-module(hello). kz B\'m,l
-export([hello_world/0]). PD6_)PXn
raE
Mm
hello_world() -> io:fwrite("Hello, World!\n"). 19c@ `?
2&he($HIzg
c2 A ps
Forth ^m!_2_q
." Hello, world!" CR 1J{fXh
!_~Uv xM+
5\hd4
Fortran =']3(6*
WRITE(*,10) V`#.7uUP
10 FORMAT('Hello, World!') C\}/"
STOP lpgd#vr
END y('k`>C
8(f:U@BS
6>`c1
\8f
HTML +G*JrwJ&=
<HTML> NHm]`R,
<HEAD> ""% A'TZ
<TITLE> Hello World! </TITLE> 3qaMO#{M
</HEAD> ''H"^oS
<BODY> YoKs:e2/:
<p>Hello World!</p> $q_R?Eay
</BODY> %m&@o~+
</HTML> 0uvzxmN
8wK ~
i
}%TPYc
HQ9+ Lrd[O v
H hyg8wI
DM{ 4@*]
,"\@fwy{
INTERCAL S`!-Cal`n
PLEASE DO ,1 <- #13 -!e7L>w
DO ,1 SUB #1 <- #238 s?rBE.g@}
DO ,1 SUB #2 <- #112 A+getdr
DO ,1 SUB #3 <- #112 !H@0MQ7
DO ,1 SUB #4 <- #0 g}x(hF
DO ,1 SUB #5 <- #64 :E&g%'1
DO ,1 SUB #6 <- #238 YXW%]Uy+
DO ,1 SUB #7 <- #26 (MLwQiop
DO ,1 SUB #8 <- #248 Y?d9l
DO ,1 SUB #9 <- #168 hK|j6xf.o
DO ,1 SUB #10 <- #24 #%lo;W~IY
DO ,1 SUB #11 <- #16 YA:nOvd@O
DO ,1 SUB #12 <- #158 o0bM=njok
DO ,1 SUB #13 <- #52 r;&>iX4B
PLEASE READ OUT ,1 U_B((Z(g
PLEASE GIVE UP Yg9joNBh
@FO)0
wkUlrL/~
Java LR(-<"
public class Hello 4_/?:$KO
{ 5PT5#[
public static void main(String[] args) MGJ.,tK1
{ k8AW6oO/i
System.out.println("Hello, world!"); n'1'!J;Q
} PcT?<HU
} %]2,&
IZ/m4~
8s{?v&p
JSP d5`3wd]]'v
<% lQ' GX9hN@
out.print("Hello, world!"); '' O 7=\
%> dG7OqA:9
g%[c<l9
#_93f
|
MIXAL 06q(aI^Ch@
TERM EQU 19 the MIX console device number -G7TEq)
ORIG 1000 start address 2-N 'ya
START OUT MSG(TERM) output data at address MSG 4JGtI*%5lq
HLT halt execution /U&Opo
{aO
MSG ALF "MIXAL" Z;/$niY
ALF " HELL" "pP^*9FrA
ALF "O WOR" ~`M\Ir
ALF "LD " 0'YG6(h
END START end of the program kE9esC3
).^}AFta
xG&)1sT#-\
Nuva G s+3e8
<..直接输出..> Eow_WW;P
Hello, world! a2'^8;U*_
L|P5=/d
<..或者..> ^.dsW0"0
&|3
$!S
<. uN([*'0Cg
// 不带换行 ZOCDA2e(j
? "Hello, world!" t3(]YgF
J &pO%Q=b
// 或者 FC i U
[I!6PGx
// 带换行 2EZb
)&Q
?? 'Hello, world!' .qMOGbd?
.> 3b' QLfU
gL_Y,A~Q{
3 @ak<9&
OCaml 'u4<BQVV[
let main () = }by;F9&B
print_endline "Hello world!";; ^?7`;/
;r_F[E2z
a,2'+Tlo
Pascal 8V^oP]Y
program Hello; =6"2UC&
begin QUU;g 2k
writeln('Hello, world!'); vVE2m=!v
end. P:30L'.=[
5?hw !
%?e& WLS
Perl mEw ~yOW]M
#!/usr/local/bin/perl X.hm s?]
print "Hello, world!\n"; vnWWneeNr
8"sb;
~0beuK&p
PHP kY*rb_2j
<?php }VS5gxI1.
print("Hello, world!"); K+;e4_\
?> N"nd*?
oD<kMK
JSW^dw&
Pike |B?27PD
#!/usr/local/bin/pike Re P|UH
int main() )+:EJH~
{ N[<\>Ps|u
write("Hello, world!\n"); 6d_'4B
return 0; yzqVz_Fi*W
} H&:jcgV*P
U2bjFLd"
5$V_Hj
PL/I ^h69Kr#d4
Test: procedure options(main); 0NS<?p~_S
declare My_String char(20) varying initialize('Hello, world!'); xlhG,bb7
put skip list(My_String); x>Zn?YR,"
end Test; NR`C(^}
{zMU#=EC
"?V0$-DR
Prolog |&RU/ a
goal &YF^j2
write("hello,world!"). 1v71rf&w
Q_[ 3`jl
O^oWG&Y;v
Python z^'gx@YD*v
#!/usr/local/bin/python S:h{2{
print "Hello, world!" HZ'_r cv
0u;4%}pD
|Y?HA&
REXX "wNJ
say "Hello, world!" 9I}-[|`u
Wf|Q$MHos
gIjh:_ Pz
Ruby 7 @D@ucL
#!/usr/bin/ruby #"@|f
print "Hello, world!\n" *MKO
I'
OCNQvF~
G"h'_7
Scheme 03q5e
(display "Hello, world!") <
jJ
(newline)
OX\A|$GS
I}1NB3>^
wOU_*uY@6'
sed (需要至少一行输入) f|\onHI)>
sed -ne '1s/.*/Hello, world!/p' C{U?0!^
&5yVxL:
<g"{Wv: h
Smalltalk W"k"IvTW}
Transcript show: 'Hello, world!' &litXIvT>
y*qVc E
#d6)#:uss
SNOBOL hb}+A=A=+
OUTPUT = "Hello, world!" o]4*|ARPs
END 5>[u `
Z&1\{PG3*
qm/)ku0
SQL ,U2*FZ["
create table MESSAGE (TEXT char(15)); 'Gj3:-xqL
insert into MESSAGE (TEXT) values ('Hello, world!'); 9Z4nAc
select TEXT from MESSAGE; ]n6#VTz*
drop table MESSAGE; 3}}38A|4
I>W=x'PkLn
6 (]Dh;gC
Tcl _852H$H\
#!/usr/local/bin/tcl EV]1ml k$
puts "Hello, world!" hgPa6Kd
fD[*_^;h)
5IE#\FITO|
TScript ZrpU <
? "Hello, world!" ZOh`(})hy
QIG$z?
EJMM9(DQ7
Turing =;Au<|
put "Hello, world!" eA2@Nkw~)
ofm#'7P 0
~%<X0s|
UNIX-style shell 9jM}~XvV
程序中的/bin/sh可改为您使用的shell H\ F:95
Lt64JH^lz
#!/bin/sh <:+ x+4ru
echo 'Hello, world!' 5?{r
+^60T$
TM%|'^)
GUI ]cHgleHQ
+r2+X:#~T
Delphi q'T4w!V(V
program HelloWorld; "@V Y
uses j()7_
Dialogs; (ZUHvvL
begin oB(?_No7
ShowMessage('Hello, World!'); ,Vc6Gwm
end. wr$("A(
oH97=>
,wQ5.U,
Nuva DhKS
pA
<. ;`0%t$@-
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) C0T;![/4A
.> (KjoSN(
K
+}Dw3;W}m
\ 2M_\Q`NY
Visual Basic n(1l}TJy
MsgBox "Hello, world!" -*1d!
'或者 .s?L^Z^
Print "Hello, world!" PxvyN_B#>
P)Jgs
L+b6!2O,
Visual FoxPro X_q\S g
? "Hello, world!" ha]VWt%}
f\|w'
n@<YI
X11 |3('
N#|
用一个程序 1+_`^|eK
)1?y 8_B
xmessage 'Hello, world!' 3Z>Ux3[
cuax;0{%
用C++和gtkmm 2 X8Bd3-B
h0g8*HY+}
#include <iostream> KI"#f$2&
#include <gtkmm/main.h> Z9v31)q(
#include <gtkmm/button.h> 01 }D,W`
#include <gtkmm/window.h> hNC&T`.-~B
using namespace std; g|o,uD
qU \w=
class HelloWorld : public Gtk::Window Q*D;U[
{ qqjwJ!@P
public: lU8l}Ndz"
HelloWorld(); (p" %O
virtual ~HelloWorld(); 4>wP7`/+y
protected: D}-/c"':}
Gtk::Button m_button; Ogqj?]2QC
virtual void on_button_clicked(); Y`~Ut:fZ
}; HY56"LZ$(}
=*oJEy"
HelloWorld::HelloWorld() : m_button("Hello, world!") 2=*H 8'k
{ Amtq"<h9a
set_border_width(10); wW Lj?;bx
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); u+9hL4
add(m_button); k
R?qb6
m_button.show(); 0CHH)Bku
} 5?f ^Rz
Akq2 d;
HelloWorld::~HelloWorld() {} Z%gh3
6_(&6]}66
void HelloWorld::on_button_clicked() d-oMQGOklb
{ !Jo_"#5
cout << "Hello, world!" << endl; ]vAz
} z<MsKD0Q
tR#OjkvX
int main (int argc, char *argv[]) [*Z;\5&P
{ lov!o:dJ
Gtk::Main kit(argc, argv); (Lbbc+1m
HelloWorld helloworld; Na<pwC
Gtk::Main::run(helloworld); xB@ T|EP
} _qF+tm
dn&s*
[F+}V,
Java ,V7nzhA2
import java.awt.*; Ugr!"Q#M
import java.awt.event.*; %aP!hy
0-B5`=yU
public class HelloFrame extends Frame XgZD%7
{ 4j*
HelloFrame(String title) &5>Kl}7
{ !hm]fh_j
super(title); y#`tgJ:
} :a!^
public void paint(Graphics g) T; 4NRC
{ P?%s
#I:
super.paint(g); +5)nk}
java.awt.Insets ins = this.getInsets(); xw.A #Zb\_
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); (O\)_#-D
} ~?l |
[
public static void main(String args []) zOJ%}
{ )7hqJa-V
HelloFrame fr = new HelloFrame("Hello"); \<bx[,?
."g`3tVK
fr.addWindowListener( &w\{TZ{
new WindowAdapter() .7J#_*NV
{ RTYvS5G
public void windowClosing(WindowEvent e) <3nMx^
{ )Om*@;r(
System.exit( 0 ); Ao 'l"-
} -oGdk|Yn
} T9=I$@/
); Zj(AJ* r
fr.setResizable(true); X;$+,&M"
fr.setSize(500, 100); \$K20)
fr.setVisible(true); p:&8sO!m
} "MeVE#O
} ,CJWO bn3
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a
.#)G[*
Java Applet :@Pl pFK
Java Applet用于HTML文件。 Q3'llOx
!t"4!3
HTML代码: w?L6!) oiz
b1I]>\
<HTML> PrqlTT}Px
<HEAD> p%ki>p )E|
<TITLE>Hello World</TITLE> gt)I(
</HEAD> g>%o #P7
<BODY> 8]c2r%J
n9\TO9N
HelloWorld Program says: G/E+L-N#`
}:zE< bK
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> p
T?}Kc
</APPLET> hE{K=Tz$
m!!/Za
</BODY> X0HZH?V+
</HTML> hPB9@hT$
70d 1ReQ
Java代码: [g|_~h
:
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import java.applet.*; 8S
TvCH"Z_
import java.awt.*; "x0^#AVg
b/K PaNv
public class HelloWorld extends Applet z(O Nv#}p
{ [jQp~&nY
public void paint(Graphics g) &u."A3(
{ `7E;VL^Y1
g.drawString("Hello, world!", 100, 50); `v!urE/gg%
} %@b0[ZC
} h,:m~0gmj
]h`&&B qt
.vf'YNQ%
java script mY|)KJ
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 P}}* Q7P
l:~/<`o
<script language="java script"> J3V=
46Yc
function helloWorld() uo9B9"&
{ ELoDd&