“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。 #tIeI6Qw
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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》。 Zq~Rkx
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以下是用不同语言写成的Hello World程序的几个例子: p'0X>>$
Ada KO\-|#3y>
with Ada.Text_Io; use Ada.Text_Io; ~:
fSD0
procedure Hello is Ou4 `#7FR
begin %>y`VN
D
Put_Line ("Hello, world!"); '
<?=!&\D
end Hello; 5WA:gy gB&
/9A6"Z
5\EnD,y
汇编语言 R,s}<N$
(hBph+
x86 CPU,DOS,TASM cMrO@=b;
MODEL SMALL )}7X4g6X
IDEAL A>8~deZ9
STACK 100H H#uN&^+H
lCgzQZ
DATASEG yk'L_M(=
HW DB 'Hello, world!$' UpPl-jeT
rvU^W+d
CODESEG /:^nG+
MOV AX, @data m] yUcj{F
MOV DS, AX 73B[|J*
MOV DX, OFFSET HW }d>Xh8:%)
MOV AH, 09H D@O5G d
INT 21H _#1EbvO*l
MOV AX, 4C00H 5NC77}^.
INT 21H PJ4/E
END l =t/"M=
,zuS)?
"TP~TjXfq
x86 CPU,GNU/Linux,NASM g!.piG|
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). C>'G?
;Enter this into "hello.asm" then type: ;B;@MD,B
;"nasm -f elf hello.asm" [W*M#00_&4
;"ld hello.o -o hello" "iGQ1#6|d
;"./hello" sv&^sARN
y@,PTF
section .data ;data section declaration @lX%Fix9
msg db 'Hello World!',0AH #jzF6j%G
len equ $-msg ;string length -LT!LBnEkf
8#HnV%|N
section .text ;code section declaration jo0XF]
global _start ;entry point (start of execution) d#XgO5eyO
_start: mov edx,len ;string length ?A3u2-
mov ecx,msg ;string start o>nw~_ H\
mov ebx,1 ;file handle: stdout /E2P
mov eax,4 ;sys_write Sa%%3_&
int 80h ;kernel system call # S/n3
_!VtM#G[
mov ebx,0 ;return value ~-[!>1!%
mov eax,1 ;sys_exit 5Po:$(
int 80h ;kernel system call +$#<gp"
nW^h
+
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x86 CPU,Windows,MASM32 gaxM#
.386 A'rd1"K
.model flat,stdcall O$;#GpR
option casemap:none `d^Q!QxE
;Include 文件定义 Dn@ZS _f
include windows.inc !H@HgJ
-
include user32.inc =+UtAf<n
includelib user32.lib `"}).{N]C
include kernel32.inc uY(8KW
includelib kernel32.lib @87Y/_l
;数据段 W!R0:-
.data :<bhQY
szCaption db 'A MessageBox!',0 |O6/p7+.
szText db 'Hello,world!',0 M)!"R [V
;代码段 $./aKJ1B
.code 9r+'DX?>
start: Ww60-d}}Q
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK (sQXfeMz
invoke ExitProcess,NULL DQ3L=
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> PVH Or^
end start ^"p. 3Hy
VBix8|
I |c!:4
AWK Xp9I3nd|
BEGIN { print "Hello, world!" } NA/`LaJ
^"D^D`$@
{Q37a=;,
BASIC NN2mOJ:-
传统版BASIC(例如GWBASIC): W6}>iB
q^<HG]
10 PRINT "Hello, world!" j'U1lEZm2
20 END K:jn^JN$
i!}6FBZ
或在提示符输入: Axns
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?"Hello, world!":END akt7rnt?i
hrq% { !Z
现代版BASIC(例如Quick BASIC): m7y[Y
14 ,t
Print "Hello, world!" i0$*):b
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以下的语句在Quick BASIC中同样有效: .MG83Si
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? "Hello,world!" =f
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&PRoT#,
J,) ytw]
BCPL [|1I.AZ{
GET "LIBHDR" aQ$sn<-l
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LET START () BE BCe'J!
$( ^Z#G_%\Y:
WRITES ("Hello, world!*N") +|d]\WlJ
$) YPI,u7-
qe#5;#
GJZjQH-#P
Befunge bY.VNA
"!dlrow olleH">v #@OPi6.#!<
, *!$Z5Im
^_@ a-E}3a
-$o0P'Vx
7`;f<QNo
Brainfuck iLZY6?_^
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Ms,MXJtH
+++++++++++++++.>.+++.------.--------.>+.>. dt:$:,"
r!dWI
3sdL\
C qE[YZ(/f0&
#include <stdio.h> vs=q<Uw)
V=*^C+6s
int main(void) i(;`x
{ Lu.+J]Rz
printf("Hello, world!\n"); {CI4AT!?W
return 0; Ve|:k5z
} f0sGE5
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.gDq+~r8O
C++ $Q8
&TM}E
#include <iostream> v;e8W9M
Jg[Ao#,==
int main() =/46;844T
{ vuPNru" 2
std::cout << "Hello, world!" << std::endl; a24 AmoWx
return 0; bg-/
8,
} .7^(~&5N
]<f(@]R/d
C$6FI`J
C++/CLI H(
i
int main() dREY m}1
{ 3r kcIVO
System::Console::WriteLine("Hello, world!"); sd\p[MXX
} q/U-6A[0
jW`JThoq
4($"4>BA
C# (C Sharp) n_km]~
class HelloWorldApp ? /z[Jx.
{ %r(WS_%K|
public static void Main() (?\+
{ 5\b GCf
System.Console.WriteLine("Hello, world!"); g) oOravV
} Mz6(M,hkq
} R*D<M3
}l7+W4~
&}k7iaO
COBOL &R<aRE:+R
IDENTIFICATION DIVISION. @!f4>iUy
PROGRAM-ID. HELLO-WORLD. E^F<"mL*
~SQxFAto
ENVIRONMENT DIVISION. dn-
[Gnde
P{n#^4
DATA DIVISION. v{a%TA9-
&su'znLV
PROCEDURE DIVISION. M/Yr0"%Q<.
DISPLAY "Hello, world!". <@-O06
STOP RUN.
'/.Dxib
^_bG{du
]WDmx$"&e
Common Lisp Lkm-<
(format t "Hello world!~%") wI_@
BUBx}dbCM
,D+ydr
DOS批处理 F$?Ab\#B
@echo off .Az36wD
echo "Hello, world!" }~I!'J#)
h$l/wn
SraZxuPg>
Eiffel c
3QgX4vq
class HELLO_WORLD NZq-%bE
_AX9Mu]
creation ^}=)jLS
make K?^;|m-
feature =#G
2}8mQD
make is FbE/x$;~O
local c1'@_Is
io:BASIC_IO iNA3Y
do !LN8=u.
!!io S 5S\zTPIf
io.put_string("%N Hello, world!") Kq")\Ha,f
end -- make Y_'ERqQ
end -- class HELLO_WORLD IK2da@V
C Bkoky9&
X8|H5Y:
Erlang ~`OX}h/Z
-module(hello). OM\J4"YV$
-export([hello_world/0]). %v0M~J}+
XNYA\%:5S
hello_world() -> io:fwrite("Hello, World!\n"). Xsq@E#@S
7AqgX0)
3Zb%-_%j
Forth /Y7^!3uM
." Hello, world!" CR ;'"'|} xn
]at$ohS
YJJ1N/Z1
Fortran cbzA`b'Mg
WRITE(*,10) <XdnVe1
10 FORMAT('Hello, World!') H%wB8Y
]
STOP PF{uaKWk
END )(}[S:`
MpCPY"WLL
Qa{5]+E
HTML l;; 2\mL?
<HTML> DSrU7#
<HEAD> Y+?QHtZL
<TITLE> Hello World! </TITLE> 8Y`Lq$u
</HEAD> dfDjOZSL
<BODY> Ni_H1G
<p>Hello World!</p> V*p[6{U0
</BODY> E)v~kC}7.
</HTML> &`^(dO9
bfxE}>
x93@[B*%
HQ9+ `Y&`2WZ ~
H Rh'z;Gyr
`Skvqo(5:
~;"eNg{T
INTERCAL S^QEc tXU
PLEASE DO ,1 <- #13 46?z*~*G
DO ,1 SUB #1 <- #238 d^v#x[1msZ
DO ,1 SUB #2 <- #112 6{2y$'m8
DO ,1 SUB #3 <- #112 N*IroT3
DO ,1 SUB #4 <- #0 odP<S.
DO ,1 SUB #5 <- #64 vXJs.)D7
DO ,1 SUB #6 <- #238 mv9D{_,pD
DO ,1 SUB #7 <- #26 CsR[@&n'
DO ,1 SUB #8 <- #248 +t7HlAXB#
DO ,1 SUB #9 <- #168 9{pT)(Wnb
DO ,1 SUB #10 <- #24 N.|F8b]v
DO ,1 SUB #11 <- #16 uLdHE5vr
DO ,1 SUB #12 <- #158 *DJsY/9d}'
DO ,1 SUB #13 <- #52 _H| )g*]t
PLEASE READ OUT ,1 !r/i<~'Bx
PLEASE GIVE UP 6i/unwe!`)
8eT#-9q@
B:zx 9
Java rz|T2K
public class Hello x?i
wtZ@
{ %JeNDXbI4
public static void main(String[] args) m(f`=+lqI`
{ dle\}Sy=
System.out.println("Hello, world!"); gwaSgV$z
} 4MC]s~n
} 6~dAK3v5
O"\4[HE^
?q!4 REM
JSP \`k=9{R.
<% qnP4wRpr
out.print("Hello, world!"); MWwqon|
%> p{E(RsA
U6JD^G=qR,
U]Q5};FK
MIXAL tB;PGk_6
TERM EQU 19 the MIX console device number ^gVQ6=z%
ORIG 1000 start address XfcYcN
START OUT MSG(TERM) output data at address MSG AbNr]w&pXC
HLT halt execution -x?Z2EA!
MSG ALF "MIXAL" $1=7^v[U
ALF " HELL" JuJW]E Q
ALF "O WOR" Uw4iWcC
ALF "LD " BA
a:!p
END START end of the program ,ei9 ?9J1
6*,55,y
4K cEJlK5
Nuva F=F84_+K
<..直接输出..> ww|fqx?
Hello, world! ?>7\L'n=5I
0A}XhX
<..或者..> veDv14
zlLZ8b+
<. d.}65{F,x
// 不带换行 sI\NX$M
? "Hello, world!" C6ql,hR^h`
Gs#9'3_U5
// 或者 &>-'|(m+2
u^Cls!C
// 带换行 tMLiG4
|7
?? 'Hello, world!' g9C-!X-<T
.> -~z@W3\
T4x%3-4;
.XgY&5Qk
OCaml ^E%R5JN
let main () = -#%M,Qb
print_endline "Hello world!";; w&@tP^`
[Or1
%:C6\4
Pascal LR&MhG7
program Hello; i,^-9
begin lLQcyi0
writeln('Hello, world!'); tDETRjTA
end. &pK0>2
&zYQH@
+1#;s!e
Perl )d[n-Si
#!/usr/local/bin/perl jP+{2)z"W
print "Hello, world!\n"; d8Vqmrc~
%lbvK^
@
2hGkJ-
PHP B}qG-}(V
<?php jJ"(O-<)D
print("Hello, world!"); rk=/iD
?> !@!603Gy
h]@'M1D%
.XpuD,^;@
Pike Xg.Lo2s
#!/usr/local/bin/pike W.
d',4)
int main() [fCnq
{ mBIksts5h
write("Hello, world!\n"); P^o@x,V!&
return 0; >~d'i
} ?uCL[
9T;>gm
\<I&utn
PL/I w[a(I}x
Test: procedure options(main); 5_A*IC]
declare My_String char(20) varying initialize('Hello, world!'); lOA
EM
put skip list(My_String); Y4YZM
end Test; $,Q]GIC
x7B;\D#`i/
JCxQENsVqB
Prolog E$_zBD%
goal 'Rnzu0<lF
write("hello,world!"). #^9bBF/
NJJ=ch
%,$xmoj9O]
Python Sv=e|!3f[k
#!/usr/local/bin/python #n&/v'!\
print "Hello, world!" y?cN
0.m-}
G9&2s%lu.e
REXX I>rTqOK
say "Hello, world!" ,g'>Ib%
xi"ff.
|t"CH'KJZ
Ruby :tbI=NDb
#!/usr/bin/ruby cK[=IE5
print "Hello, world!\n" I[rR-4.F]
r4cz?e|
o]V.6Ge-
Scheme eSIG+{;&
(display "Hello, world!") d@^%fVhG
(newline) |L*=\%t8
X}G$ON
m{$+
sed (需要至少一行输入) v`L]dY4,
sed -ne '1s/.*/Hello, world!/p' %J'/ cmR&
;k0Jl0[}
.dYv.[?hL
Smalltalk 5{W Aw !
Transcript show: 'Hello, world!' erv94acq
nN.Gn+Cl
l(x0d
SNOBOL Zs|Ga,T
OUTPUT = "Hello, world!" ]Vj($O:
END 4cy,'B
| )
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&kvmLO I
SQL H9'psv
create table MESSAGE (TEXT char(15)); #Rfcp!
insert into MESSAGE (TEXT) values ('Hello, world!'); #|+4 `Gf^
select TEXT from MESSAGE; tf54EIy5Y
drop table MESSAGE; D9;pjY
vC1fKo\p
L9^M?.a
Tcl &2%|?f|
#!/usr/local/bin/tcl Mb"y{Fox
puts "Hello, world!" 2oc18#iG(
jLn#%Ia}
|<3x`l-`
TScript mVS^HQ:
? "Hello, world!" C}uzzG6s
4dN <B U
T)<^S(57
Turing 96;5
put "Hello, world!" r"K!]Vw
DC_uh
`e;r$Vpd_
UNIX-style shell 1D)0\#><
程序中的/bin/sh可改为您使用的shell hMz)l\0
&2.DZ),L
#!/bin/sh K@:omT
echo 'Hello, world!' .*`]x
@J>JZ7m]\
SHSfe{n
GUI bxwwYSS
n(V{ [
Delphi )RTWt`
program HelloWorld; &ID! lEd
uses 78*8-
Dialogs; sMVk]Mb
begin WZHw(BN{+
ShowMessage('Hello, World!'); 8JQ\eF$ma
end. wjH1Ombt
fUCjC*#1
S8kzAT
Nuva $"(
15U
<. 0=U|7%dOL
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) N3lz-vP-
.> o(DG 3qk
DC/Czkv9
{U>N*&_`
Visual Basic y'b*Dk{
MsgBox "Hello, world!" R|$b\3
'或者 iOZ#}"
Print "Hello, world!" i?b9zn
b{aB^a:f=L
9MO=f^f-
Visual FoxPro S,5>/'fy0
? "Hello, world!" .9Cy<z
fwA8=oSZd
L58#ri=
X11 lw~
V
用一个程序 Xm|~1 k_3
){)-}M
xmessage 'Hello, world!' F7j/Zuj
tw.GBR
用C++和gtkmm 2 *aS+XnT/
jTg~]PQ^
#include <iostream> 5_](N$$
#include <gtkmm/main.h> d^M*%a z
#include <gtkmm/button.h> !x
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#include <gtkmm/window.h> "P|n'Mx
using namespace std; WvArppANo
5oCg&aT
class HelloWorld : public Gtk::Window f@Jrbg
{ ?M|1'`!c8
public: {irc~||4
HelloWorld(); &b^~0Z
virtual ~HelloWorld(); l"+8>Mm
protected: QnP3U
Gtk::Button m_button; %x{kd8>u!
virtual void on_button_clicked(); <'UGYY\wg0
}; {PxFG<^U
J;^ PM:6
HelloWorld::HelloWorld() : m_button("Hello, world!") %GY'pQz
{ })70S8k
set_border_width(10); [[^95:
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); :] U\{;q2
add(m_button); w1-P6cf
m_button.show(); K, !
V _
} Z- a
Djc-f
HelloWorld::~HelloWorld() {} vK+reXE
A-uIZ
zC
void HelloWorld::on_button_clicked() &wY$G! P
{ RjvW*'2G
cout << "Hello, world!" << endl; =9 )k:S(
} ZQfPDH=
lqMr@
:t
int main (int argc, char *argv[]) 6i+,/vr
{ -3)jUzD
Gtk::Main kit(argc, argv); [|c%<|d2
HelloWorld helloworld; _ {wP:dI "
Gtk::Main::run(helloworld); )kI**mI}
} 7p]Izx8][
U'9z.2"}9
q! 'p
Java ]OdZlZBsJ
import java.awt.*;
&qdhxc4
import java.awt.event.*; A&Aj!#
0mUVa=)D
public class HelloFrame extends Frame M+VWAh#uD
{ hchG\i
HelloFrame(String title) EZ|v,1`e
{ K y%lu^
super(title); D@68_sn
} mrnPZf i
public void paint(Graphics g) !YjxCx
{ njX$?V
super.paint(g); B T"R"w
java.awt.Insets ins = this.getInsets(); r#4/~a5i~
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); kO3\v)B;
} C[
mTVxd
public static void main(String args []) ]"{8"+x
{ 3rKJ<(-2/
HelloFrame fr = new HelloFrame("Hello"); y{hy7w' d
< z2wt
fr.addWindowListener( BXYH&2]Q
new WindowAdapter() Q7XOO3<):
{ \_8wU'7
public void windowClosing(WindowEvent e) ySmbX
{ @pYEzizP7
System.exit( 0 ); '{jr9Vh
} mvZ#FF1,J
} ={ms@/e/T
); [MFnS",7c
fr.setResizable(true); A'KH_])
fr.setSize(500, 100); ^HJ?k:u
fr.setVisible(true); @ps(3~?7
} b[<RcM{r}
} @GFB{ ;=
rtj`FH??11
G*@!M%/
Java Applet )e,O+w"
Java Applet用于HTML文件。 9dhEQ=K{3
w]0@V}}u$o
HTML代码: V9<`?[Usv
$mn0I69
<HTML> FzJ7 OE|
<HEAD> !,m
<TITLE>Hello World</TITLE> V]p{jLG
</HEAD> ;KlYiu
<BODY> EsMX#1>/m
C_Ewu*T7
HelloWorld Program says: 5.9<g>C
#s\@fp7A
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> }xk(aM_
</APPLET> Wb-C0^dTn
/kbU<
</BODY> aj1]ZT\
</HTML> ^viabkf C
&J>e;X
Java代码: K oJ=0jM#
4o*i(W
import java.applet.*; D:1@1Jr
import java.awt.*; 8W\yM;'
=SfNA
F
public class HelloWorld extends Applet GJeG7xtJKl
{ V*giF`gq
public void paint(Graphics g) s?w2^<P
{ q!$s<n
g.drawString("Hello, world!", 100, 50); bhqSqU}6~
} cFUD$mp
} ngo> ^9/8
D.K""*ula
EwC]%BZP
java script >'*%wf[{
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 )+G"57p
0bTj/0G?
<script language="java script"> Xz_WFLq4
function helloWorld() !g@Ky$
{ !dLu($P
alert("Hello World"); X1Yw=t~a
} 0q}i5%m7
</script> jn<?,UABD
B9maz"lJ
<a href="java script:this.location()" [,o:nry'a
onclick="java script:helloWorld();">Hello World Example</a> 2q~.,vpP
aLa<zEssz
Z`Y&cK