“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。 ~yGD("X
z(8:7 G
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》。 sbju3nvk
W<QMUu
以下是用不同语言写成的Hello World程序的几个例子: q)m0n237P
Ada RjcU0$Hi
with Ada.Text_Io; use Ada.Text_Io; )V6Bzn}9
procedure Hello is j$<sq
begin ^n @dC?
Put_Line ("Hello, world!"); >-%}'iz+
end Hello; Xxz_h*
pL&
Zcpx
xy^t_];X
汇编语言 <-]qU}-
JNJ96wnX1
x86 CPU,DOS,TASM N<$dbqoT|
MODEL SMALL b%-S'@ew
IDEAL y[C++Q
STACK 100H A"V($:>U
/O^aFIxk
DATASEG ma gZmY~
HW DB 'Hello, world!$' [f1'Qb
_s1pif
CODESEG Jp d|<\Ml
MOV AX, @data F3%8E<QZd;
MOV DS, AX -lb,0
MOV DX, OFFSET HW 5}+&Em":
MOV AH, 09H YLx4qE
INT 21H lWR".
MOV AX, 4C00H d
:a*;F
INT 21H RCL}bE
END 6H #4iMeh
C'wRF90
Sb/`a~q^
x86 CPU,GNU/Linux,NASM MzRliH8e
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). `hVi!Q]*P
;Enter this into "hello.asm" then type: w|k?2 ?&
;"nasm -f elf hello.asm" ~fht [S?@M
;"ld hello.o -o hello" S{0iPdUC
;"./hello" ~OE1Sd:2
jQ"z\}Wf
section .data ;data section declaration _ddOsg|U
msg db 'Hello World!',0AH 4X1!t
len equ $-msg ;string length vOIzfwYG9
-K@mjN
section .text ;code section declaration lB(E:{6OZ
global _start ;entry point (start of execution) <73dXTZ0
_start: mov edx,len ;string length \C&[BQ\
mov ecx,msg ;string start OpNxd]"T
mov ebx,1 ;file handle: stdout DO^J=e
mov eax,4 ;sys_write 38 -vt,|
int 80h ;kernel system call eXYf"hU,
TdCC,/c3
mov ebx,0 ;return value B1U<m=Y
mov eax,1 ;sys_exit sU=7)*$
int 80h ;kernel system call vg"$&YX9"
Zw`9B
\se
/2l
x86 CPU,Windows,MASM32 #H5i$ o
.386 Fmd^9K
.model flat,stdcall !1b4q/
option casemap:none ?=dp]E{
;Include 文件定义 MB!_G[R
include windows.inc [wO|P{8\"
include user32.inc na4^>:r~
includelib user32.lib u^ 3,~:E
include kernel32.inc eVetG,["
includelib kernel32.lib 6z'3e\x
;数据段 SZ&I4-
.data
y"L7.B
szCaption db 'A MessageBox!',0 og~Uv"&?T
szText db 'Hello,world!',0 0# d:<+4D
;代码段 l(<=JUO;
.code mH,L,3R;R
start: B*3<(eI
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK qk
*b,`;
invoke ExitProcess,NULL l2*o@&.
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 'O+)[D
end start DTMoZm
%S$+3q%F
H5)8TR3La
AWK (oxMBd+n1
BEGIN { print "Hello, world!" } Tp[-,3L
z#|tcHVFT
G &QG Q
BASIC y(fJ{k
传统版BASIC(例如GWBASIC): tYk!Y/O}
GpZ}xY'|w,
10 PRINT "Hello, world!" Mjj5~by:
20 END Pl\r|gS;
QUO'{;,
或在提示符输入: Yf?hl
51Q m2,P1^
?"Hello, world!":END Q|7$SS6$
?lPyapA]
现代版BASIC(例如Quick BASIC): 8JFvz(SK>
4/?@ %
Print "Hello, world!" @km@\w
Klj -dz
以下的语句在Quick BASIC中同样有效: :AYhBhitC
Rh :|ij>B
? "Hello,world!" <C <z#M'`
~#];&WE
B~h3naSe
BCPL _g2"D[I%
GET "LIBHDR" hqW),^\>'
(Zz8 ldO
LET START () BE bP)(4+t~
$( RA$%3L[A!
WRITES ("Hello, world!*N") c2RQwtN|
$) 5XzN%<_h9
d2U+%%Tdw
L&,&SDr
Befunge ]pq(Q:"P,5
"!dlrow olleH">v PY76;D*`
, pdySip<
^_@ tu:W1?
'D:R]@eK]
$}8@?>-w
Brainfuck BA6(Owb
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< :%4N4|
Q
+++++++++++++++.>.+++.------.--------.>+.>. wec_=EqK0
rX}FhBl5
vs%d}]v
C '',g}WvRwe
#include <stdio.h> {X EX0|TZ
Q.MbzSgXL
int main(void) \&MJ(F>vJ
{ {%+UQ!]d8
printf("Hello, world!\n"); <]f{X<ef
return 0; X#<+D1P
}
:SD#>eD0
g%_3
>K!$@]2F
C++ T$"sw7<
#include <iostream> I|<`Er-;58
NilnS!BM
int main() \gFV6 H?`
{ 3jx /1VV
std::cout << "Hello, world!" << std::endl; }1EtM/Ni{!
return 0; HJ_8 `( '
} x8o/m$[,=u
?3y>K!D(A
QmC#1%@a
C++/CLI c+upoM
int main() f7b6!R;z_
{ :X}fXgeL
System::Console::WriteLine("Hello, world!"); KP)t,\@f!
} %z6_ ,|%
_%wB*u,X
`O]$FpO
C# (C Sharp) sLd%m+*p
class HelloWorldApp vcC"
{ ()W`4p
public static void Main() j;J`PH
{ 6F_:,b^
System.Console.WriteLine("Hello, world!"); 5c0$oyl)M
} 5VSc5*[
} M=54xTh0Y
nyL$z-I)
/V }Z,'+
COBOL FA{'Ki`
IDENTIFICATION DIVISION. kjF4c6v
PROGRAM-ID. HELLO-WORLD. }t*:EgfI
3Mq%3jX
ENVIRONMENT DIVISION. 'iU+mRLp
'?Xf(6o1
DATA DIVISION. ^fj30gw7\5
ct@3]
PROCEDURE DIVISION. XzBlT( `w
DISPLAY "Hello, world!". aZ8f>t1Q
STOP RUN. Vy6~O|68=
q)3QmA~
jN!VrRA
Common Lisp jdkqJ4&i
(format t "Hello world!~%") a1shP};pK
X]_9g[V
u{cb[M
DOS批处理 xYY^tZIV
@echo off '=(D7F;
echo "Hello, world!" 8Oa+,?<0x
@<yY Mo7
40O@a:q*
Eiffel q2U?EP{8~
class HELLO_WORLD 32Wa{LG;2
7NkMr8[}F
creation LbuhKL}VN
make KB{IWu
feature
Wf~PP;
make is VAp 1{
local YIF|8b\
io:BASIC_IO
aTkMg
do CIVV"p`}
!!io oA8A
@,-L
io.put_string("%N Hello, world!") h!`KX2~
end -- make yQ!keGj
end -- class HELLO_WORLD p)?6~\F:
Js(MzL
)"](?V
Erlang a1EQ.u
-module(hello). w~3z);
-export([hello_world/0]). 1.5R`vKn]
:jJ0 +Q
hello_world() -> io:fwrite("Hello, World!\n"). iI3,q-LA
Z`#XB2,
G[=;519
Forth tYG6Gl
." Hello, world!" CR 2t?Vl%<
=7EkN% V:{
Rq`5ff3,
Fortran `Ue5;<K-/
WRITE(*,10) j
Y(|z*|
10 FORMAT('Hello, World!') 4 ]ko
STOP 89{`GKWX
END yH9&HFDp
e-nwR
ikO9p|J
HTML @k\,XV`T~t
<HTML> iu$Y0.H@
<HEAD> _YN
C}PUU
<TITLE> Hello World! </TITLE> l5D4?`|
</HEAD> GcG$>&,
<BODY> `/9I` <y
<p>Hello World!</p> Cq[Hh#q
</BODY> 4ves|pLET
</HTML> j=c< Lo`
v3(0Mu0J
ZiRCiQ/?
HQ9+ "bz.nE*
H 03_M+lv
6!8uZ>u%Vg
)@<HG$#
INTERCAL |{RCvm
PLEASE DO ,1 <- #13 9v1 Snr
DO ,1 SUB #1 <- #238 R+2~%|{d
DO ,1 SUB #2 <- #112 ],{M``]q
DO ,1 SUB #3 <- #112 24sQon
DO ,1 SUB #4 <- #0 WXG0Z
DO ,1 SUB #5 <- #64 s#(7D3Pr#
DO ,1 SUB #6 <- #238 PS0/Ok
DO ,1 SUB #7 <- #26 cH5RpeP
DO ,1 SUB #8 <- #248 $j\jT
DO ,1 SUB #9 <- #168 ]=59_bkD:s
DO ,1 SUB #10 <- #24 "1`w>(=
DO ,1 SUB #11 <- #16 %-BwK
DO ,1 SUB #12 <- #158 aimf,(+
DO ,1 SUB #13 <- #52 Qwp2h"t`
PLEASE READ OUT ,1 m*\LO%s]E
PLEASE GIVE UP xe9\5Gb}
PR*EyM[T
9<
S
Java u$X =2u:P
public class Hello I}m>t}QRI_
{ YN~1.!F
public static void main(String[] args) c~}FYO$
{ BqM[{Kv
System.out.println("Hello, world!"); =dmxE*C
} O-box?
} y'n<oSB}
DiZ;FHnaG?
bR$5G
JSP foB&H;A4oC
<% m)]|mYjju
out.print("Hello, world!"); )@] W=
%> Pn L?zae
w2jB6NQX
zy.v[Y1!
MIXAL b<[]z,
TERM EQU 19 the MIX console device number eR/X9<
ORIG 1000 start address ,b?G]WQrHs
START OUT MSG(TERM) output data at address MSG :a:m>S<~
HLT halt execution +n)bWB%
MSG ALF "MIXAL" *}_i[6_\E
ALF " HELL" WI.+9$1:P
ALF "O WOR" %IDl+_j
ALF "LD " (`u+(M!^
END START end of the program 'Mhnu2d
/||8j.Tm
= )4bf"~8
Nuva 8#9OSupp
<..直接输出..> Cv/3-&5S
Hello, world! ;Wsl 'e/
]\]mwvLT
<..或者..> ymT]ow6C
prB:E[1
<. 8#4Gs Q"
// 不带换行 [?(qhp!
? "Hello, world!" #a'CoJs
v&7x ~!O
// 或者 _d+` Gw
bjN"H`Q
// 带换行 vV*/"'>
?? 'Hello, world!' JeAyT48!M
.> wRq
f'
:c`djM^ll
XhN?E-WywQ
OCaml F5M{`:/
let main () = yVJ)JhV
print_endline "Hello world!";; /Ao.b|mm
sDu&9+
+vPCr&40
Pascal f9hH{(A
program Hello; Ri}JM3\J
begin ;!OME*?m<
writeln('Hello, world!'); V#c=O}
end. ;<%d^
PWyFys
+eop4 |Z
Perl y+izC+
#!/usr/local/bin/perl A2Iqn5
print "Hello, world!\n"; g91xUG
ZS@R ?
>feeVk
PHP 8^R~qpg%
<?php `_"?$ v2F
print("Hello, world!"); C\|HN=2eh
?> zE7)4!
qQS&K%F
.
ywVGBvJ
Pike 1KJ[&jS ]
#!/usr/local/bin/pike G {a;s-OA3
int main() 5RY rAzQo
{ 1 -R4A7+3
write("Hello, world!\n");
Bm a.Uln
return 0; "IWL& cH3
} w"A>mEex<
"c![s%
$]?M[sL\N7
PL/I W=2]!%3#
Test: procedure options(main); ;)sC{ "Jb
declare My_String char(20) varying initialize('Hello, world!'); 5 L-6@@/
put skip list(My_String); zCu+Oi6
end Test; eEeK ]8@
gV'=uz v
-NDB.~E^DJ
Prolog %*Yb
J_j7
goal tcI Z
2H%
write("hello,world!"). t~Ic{%bdA
ZKi?;ta=
Yof]
Python AZ-JaE
#!/usr/local/bin/python -or)NE
print "Hello, world!" '47E8PIJ|
ffaMF~+
j'UWgwB
REXX 7qdB
say "Hello, world!" c{jTCkzq
t /lU*
pz.fZV
Ruby 5)gC<
#!/usr/bin/ruby a
JQ_V
print "Hello, world!\n" 2}5@:cwR+
YCyh+%Q(
]_4HtcL4
Scheme '9AYE"7Ydk
(display "Hello, world!") +.X3&|@k
(newline) p,\(j
!ed0
<_4'So>
sed (需要至少一行输入) _ n4C~
sed -ne '1s/.*/Hello, world!/p' xB}B1H%
YH-W{].
qc6d,z/
Smalltalk \u 6/nvZ]N
Transcript show: 'Hello, world!' 6{ pg^K
;]2d%Qt
Nh6!h%
SNOBOL a3:1`c/~\
OUTPUT = "Hello, world!" rwAycW7
END P>7PO~E.
o7yvXrpG(U
EsLtC5]
SQL VJtRL')
create table MESSAGE (TEXT char(15)); <"LA70Hkk
insert into MESSAGE (TEXT) values ('Hello, world!'); B>
zQ[e@t
select TEXT from MESSAGE; kO,vHg$
drop table MESSAGE; !Eb!y`jK
ul\FZT 4
$u,`bX
Tcl *,wW-8
#!/usr/local/bin/tcl UR[UZ4G
puts "Hello, world!" =AeOkie
No]#RvEd3
fc%C!^7
TScript &GI'-i
? "Hello, world!" RP6hw|
w.Go]dpK
bWMb@zm
Turing 4& 9V
put "Hello, world!" EL9JM}%0v
&"X1w $
qvRs1yr?q
UNIX-style shell tSaD=# v
程序中的/bin/sh可改为您使用的shell 1(
]{tF
H(Ad"1~.#
#!/bin/sh _(KzjOMt
echo 'Hello, world!' KocNJ
TB
fyv S1_
@Sz7*p
GUI ,h.hgyt
IVG77+O# }
Delphi /ASpAl[J
program HelloWorld; A*? Qm
uses Kuh)3/7
Dialogs; p[D,.0SuC
begin l/bZE.GJ
ShowMessage('Hello, World!'); K )9f\1\
end. V_T~5%9Fy
;7g~4Uv4}
<J!?eH9f
Nuva r6}-EYq=
<. |TuFx=~5v
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) .WW|v
.> iMp_1EXe
C0j`H(
k
i{8f
Visual Basic |f+fG=a67V
MsgBox "Hello, world!" =M34
HPG
'或者 Qh4Z{c@
Print "Hello, world!" ^+9i~PjL
8' +I8J0l
C0'_bTfB
Visual FoxPro D;X/7 p|>
? "Hello, world!" \xOv 9(
=OooTZb:x-
:"Kr-Hm`
X11 2;YL+v2
用一个程序 E)(Rhvij
qLm
g18
xmessage 'Hello, world!' wmFS+F4`2
FJ O-p
用C++和gtkmm 2 Iz I
hC
lkgB,cflpi
#include <iostream> <VmEXJIk
#include <gtkmm/main.h> `qj24ehc
#include <gtkmm/button.h> c]/&xRd
#include <gtkmm/window.h> +v|]RgyW)
using namespace std; ,a}
vx"~
f15n ~d
class HelloWorld : public Gtk::Window rNX]tp{j
{ -&r A<j
public: i
M!=/
HelloWorld(); MH_3nN
virtual ~HelloWorld(); uJL[m(G
protected: Z~DR,:
Gtk::Button m_button; }&IOBYHVDo
virtual void on_button_clicked(); Uj>bWa`
}; =7<g;u
AJ85[~(lX
HelloWorld::HelloWorld() : m_button("Hello, world!") LW+^m6O
{ x=VLRh%Gvl
set_border_width(10); bF? {
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); O.OSLezTQ
add(m_button); &e1(| qax
m_button.show(); R}\n@X*
} z4*`K4W
&13#/
HelloWorld::~HelloWorld() {} ,c[f/sT\
^es/xt
void HelloWorld::on_button_clicked() TllIs&MCe
{ O\)rp!i
cout << "Hello, world!" << endl; A \~tr
} (T2\
@#&y
int main (int argc, char *argv[]) mdukl!_x
{ f#zm}+,`
Gtk::Main kit(argc, argv); DbvKpM H
HelloWorld helloworld; ^EmI;ks
Gtk::Main::run(helloworld); ]"4\]_?r
} x)^t5"F
f hr
QJ
;TG<$4N
Java yX|0R
H
import java.awt.*; / FA0(< -}
import java.awt.event.*; G,h=5y9_J
^`oyf{w@
public class HelloFrame extends Frame .wz.Jr`{
{ S(h+,+289
HelloFrame(String title) \>r<z46x
{ %v 1NDhaXz
super(title); 53X5&Bwh
} ':_1z5
public void paint(Graphics g) hha^:,
{ w&^_2<a2
super.paint(g); 0|@*`-:VO
java.awt.Insets ins = this.getInsets(); TClgywL
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); o<8=@ ^T
} ld/\`s[i
public static void main(String args []) UqaV9
{ 7.`:Z_
HelloFrame fr = new HelloFrame("Hello"); a 9f%p
}o MY
fr.addWindowListener( Dg2=;)"L
new WindowAdapter() khtYn.eaL
{ \t\ZyPxn
public void windowClosing(WindowEvent e) V.Ki$0>
{ O%?d0K
System.exit( 0 ); W4o$J4IX{
} 0*}%v:uN9
} k874t D
); x6={)tj
fr.setResizable(true); !`?*zf
fr.setSize(500, 100); 6l-V%3-
fr.setVisible(true); *T{P^q.s~[
} .YcI .
} 86N"EuH$
x7l3&;yDv
yUzpl[*e^o
Java Applet 1lLL9l{UVw
Java Applet用于HTML文件。 0413K_
MC&sM-/
HTML代码: ;OynkZs)
*%wfR7G[B
<HTML> j=~c(
B
<HEAD> yYM_
<TITLE>Hello World</TITLE> XF 8$D
</HEAD> YFY$iN~B,
<BODY> }tRY,f
@,{',
=L6
HelloWorld Program says: Z:(yX0U,[
vPA {)l\K
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> llP
5
</APPLET> JD}"_,-
l.Qv9Ll|b
</BODY> %d/Pc4gfc
</HTML> pk0Cx
V)8d1S
Java代码: s9'lw'
OPsg3pW!]
import java.applet.*; =Vm"2g,aA
import java.awt.*; T2^0Q9E?
) ]x/3J@
public class HelloWorld extends Applet N1O.U"L;
{ ``p()^zT
public void paint(Graphics g) -$js5Gx1
{ rG*Zp7{
g.drawString("Hello, world!", 100, 50); Y}pCBw
} Q(\U'|%J
} 8NRc+@f|m
<p74U( V
!K~:crUV|S
java script tuF
hPqe {
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 %@jL?u
05cyWg9a
<script language="java script"> - s,M+Q(<
function helloWorld() U 3f a*D
{ G$B( AWL
alert("Hello World"); ]%y3*N@AZ
} &