“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。 IEL%!RFG
{K~ 'K+TPu
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》。 nY[WRt w
!,_u)4
以下是用不同语言写成的Hello World程序的几个例子: hIYNhZv
Ada y1jCg%'H
with Ada.Text_Io; use Ada.Text_Io; yM6pd U]i
procedure Hello is 5zK4Fraf
begin K(e$esLs-
Put_Line ("Hello, world!"); 1SQ3-WUs
end Hello; Ljm[?*H#
D%[mWc@1I
r(>@qGN
汇编语言 1fp?
VD;01"#'
x86 CPU,DOS,TASM `f,/`''R
MODEL SMALL *nT<m\C6
IDEAL t5^{D>S1
STACK 100H %?1ew
rK8lBy:<
DATASEG XW2b| %T
HW DB 'Hello, world!$' ol\Utq,
%Bj\W'V&p
CODESEG <)C#_w)-
MOV AX, @data np|Sy;:
MOV DS, AX @Myo'{3vF
MOV DX, OFFSET HW YH}'s>xZz
MOV AH, 09H nUaJzPl
INT 21H '&P%C" 5
MOV AX, 4C00H Y1w9y
INT 21H j.[.1G*("
END zF`0J
d(ZO6Nr Q
F>Ah0U0
x86 CPU,GNU/Linux,NASM
_O)>$.^6
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). etQCzYIhn
;Enter this into "hello.asm" then type: udK%>
;"nasm -f elf hello.asm" w0 M>[ 4
;"ld hello.o -o hello" 1;bh^WMJ
;"./hello" >%_ \;svZG
R3f89
section .data ;data section declaration B&M%I:i
msg db 'Hello World!',0AH ZuzEg *lb
len equ $-msg ;string length YsC>i`n9
,C\i^>=
section .text ;code section declaration Gq)]s'r2
global _start ;entry point (start of execution) DaQ?\uq
_start: mov edx,len ;string length .fqN|[>
mov ecx,msg ;string start c1(RuP:S
mov ebx,1 ;file handle: stdout .|KyNBn
mov eax,4 ;sys_write BiLY(1,
int 80h ;kernel system call G{~J|{t\yz
(Bb5?fw
mov ebx,0 ;return value EmWn%eMN
mov eax,1 ;sys_exit AG
nxYV"p
int 80h ;kernel system call G6Axs1a
fivw~z|[@
zy?|ODM
x86 CPU,Windows,MASM32 3@_xBz,I .
.386 0(}t8lc
.model flat,stdcall f].h^~.q
option casemap:none PA{PD.4Du
;Include 文件定义 dw>C@c#"
include windows.inc 20h}
[Q(
include user32.inc 4&lv6`G `
includelib user32.lib D(op)]8
include kernel32.inc GRIti9GD
includelib kernel32.lib [T4J{y64Y
;数据段 <Xhm`rH
.data :1Xz4wkWS*
szCaption db 'A MessageBox!',0 qCC.^8
szText db 'Hello,world!',0 GTPHVp&y
;代码段 3PWL@>zi
.code W&W5lArr
start: #<"~~2?
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK JPI3[.o
invoke ExitProcess,NULL BQHVQs
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> mkk6`,ov
end start sRR(`0Zp
G^|:N[>B
.[KrlfI
AWK m]0;"jeL
BEGIN { print "Hello, world!" } wc@X.Q[
e`_LEv
;W
)Y
OT
BASIC hp50J
传统版BASIC(例如GWBASIC): e(;,`L\*
z]y.W`i
10 PRINT "Hello, world!" ~8Fk(E_
20 END ;\dBfP
|Pax =oJ\M
或在提示符输入: %)8}X>xq
./Zk`-OBT
?"Hello, world!":END '?' l;#^i<
wh`"w7br
现代版BASIC(例如Quick BASIC): nsC3
Xf]d. :
Print "Hello, world!" 8U"v6S~A%Q
K:[F%e
以下的语句在Quick BASIC中同样有效: epe)a
CI0C1/:@
? "Hello,world!" |kg7LP3(8,
|$Sedzj'
SYJD?&C;
BCPL ? pmHFlx
GET "LIBHDR" VQt0 4?
^ig' bw+WS
LET START () BE h
0Q5-EA
$( .o^l
z 9:
WRITES ("Hello, world!*N") e\l7Iu
$) M#6W(|V/
7hcYD!DS
<oV(7
Befunge 7M~K,E(7~
"!dlrow olleH">v s
WvBv
, ,AFu C<
^_@ 9G5rcYi
%JBz5G
)F>#*P
Brainfuck R4cM%l_#W
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< nPl?K:(
+++++++++++++++.>.+++.------.--------.>+.>. `i*E~'
&i6mW8l
n0 {i&[I~+
C 9wwqcx)3(
#include <stdio.h> '[:D$q;
U(g:zae
int main(void) L|xbR#v
{ 0RLg:SV
printf("Hello, world!\n"); $k%2J9O
return 0; .@U@xRu7|
} ^"2J]&x`G
Om\vMd@!
5L%'@`mX
C++ LckK\`mh
#include <iostream> b5vC'B-!
1~
3_^3OT
int main() }q`S$P;
{ #OD/$f_
std::cout << "Hello, world!" << std::endl; ,m:.-iy?
return 0; (Zrj_P`0[
} 0&|\N
? 8_
E,U+o $
kJsN|=
C++/CLI g|yvF-+
int main()
xF'EiX ~
{ E
A1?)|}n
System::Console::WriteLine("Hello, world!"); zKJ#`OhT
} d#4**BM
0@iY:aF
IY\5@PVZ
C# (C Sharp) "7F?@D$e
class HelloWorldApp cf20.F{<
{ 7'V@+5
public static void Main() u0c1:Uv#~e
{ EgCAsSx(
System.Console.WriteLine("Hello, world!"); .jE{ 3^
} m@v\(rT.
} k"zv~`i'
|&) dh<
YkKi|k
COBOL SsDmoEeB[
IDENTIFICATION DIVISION. c9 _rmz8
PROGRAM-ID. HELLO-WORLD. qiBVGH
:>f )g
ENVIRONMENT DIVISION. @,7GaK\
Ai?*s%8v
DATA DIVISION. 37.S\gO]
K;H&n1
PROCEDURE DIVISION. f+)L#>Gl?
DISPLAY "Hello, world!". 8^+%I/S$
STOP RUN. qWPkT$ u
rcG"o\g@+
,m|h<faZL
Common Lisp D'PI1
0t
(format t "Hello world!~%") c]o'xd,T8\
{]@= ijjf
=K[yT:
DOS批处理 [<yaXQxl
@echo off vw/J8'
echo "Hello, world!" >jLY"
O-hAFKx
~4Fvy'
Eiffel }V`"s^
class HELLO_WORLD sBg.u
KU(&%|;g
creation 21l;\W
make :J&oX
<nF^
feature Ka
V8[|Gn,
make is #f]SK[nR
local s-Tv8goNV
io:BASIC_IO Moza".fiN
do H40p86@M
!!io 2-EIE4ds
io.put_string("%N Hello, world!") 5e^ChK0Q
end -- make D'DfJwA
end -- class HELLO_WORLD v^*K:#<Q!
>Abdd
;$wVu|&
Erlang !?h;wR
-module(hello). >SHhAEF
-export([hello_world/0]). ul >3B4
z$. 88^
hello_world() -> io:fwrite("Hello, World!\n"). K
Z91-
P}^W)@+3k
c-6?2\]j@
Forth =X:Y,?
." Hello, world!" CR E*K;H8}s
)F]]m#`
7[XRd9a5(
Fortran +\
.Lp 5
WRITE(*,10) Qe:seW
10 FORMAT('Hello, World!') CkQ3#L <2
STOP _)m]_eS._
END 0 /U{p,r6`
K is"L(C
h3
}OX{k
HTML I,vJbvvl!
<HTML> $uVHSH5l
<HEAD> t-bB>q#3>
<TITLE> Hello World! </TITLE> UySZbmP48
</HEAD> VuZuS6~#J
<BODY> g1 "kTh
<p>Hello World!</p> Dp-z[]})1
</BODY> ]Q)OL
</HTML> F{;((VboN
+VOK%8,p
KB(8f*
HQ9+ M%P:n/j
H j'"J%e]
JU&c.p
/
$DaNbLV
INTERCAL r52gn(,
PLEASE DO ,1 <- #13 6mxfLlZ
DO ,1 SUB #1 <- #238 00~mOK;1
DO ,1 SUB #2 <- #112 ~V1E0qdAE
DO ,1 SUB #3 <- #112 }N6.Uu5zI
DO ,1 SUB #4 <- #0 `7V]y-
DO ,1 SUB #5 <- #64 56kI
5:
DO ,1 SUB #6 <- #238 kJT)r6
DO ,1 SUB #7 <- #26 =MDysb&:
DO ,1 SUB #8 <- #248 ],Do6
@M-
DO ,1 SUB #9 <- #168 P{lB50
DO ,1 SUB #10 <- #24 sWnLEw
DO ,1 SUB #11 <- #16 G3AesTT|
DO ,1 SUB #12 <- #158 v;D~Pa
DO ,1 SUB #13 <- #52 YO}<Ytx
PLEASE READ OUT ,1 =$JET<(
PLEASE GIVE UP s
R/F"
')<hON44EX
_
*Pf
Java 7n<::k\lb
public class Hello r0% D58
{ *#+An<iT ;
public static void main(String[] args) z[qDkL
{ |#R7wnE[k~
System.out.println("Hello, world!"); $Ri; ^pZw[
} 59;KQ
} wgGl[_)
Y\g3hM
&7tbI5na@
JSP \bvfEP
<% &E5g3lf
out.print("Hello, world!"); 'c$+sp ?
%> }9}h*RWm
4zFW-yy
N6i Q8P-
MIXAL A;?|&`f
TERM EQU 19 the MIX console device number RPL:-
ORIG 1000 start address P.9>z7l{
START OUT MSG(TERM) output data at address MSG lA8`l>I
HLT halt execution di )L[<$DY
MSG ALF "MIXAL" :P0mx
ALF " HELL" -r]W
ALF "O WOR" _L=h0H l
ALF "LD " oE]QF.n#
END START end of the program -]M5wb2,
mrtb*7`$
4ID5q~
Nuva _u QOHwn
<..直接输出..> <=C!VVk4f
Hello, world! <x>Mo
or}[h09qA
<..或者..> Z=vU}S>r|v
aWF655Fs*
<. IyG}H}
// 不带换行 m^;f(IK5
? "Hello, world!" Q*ft7$l&
}b.%Im<3R
// 或者 J<jy2@"tXo
g{&ui.ml&
// 带换行 Yr[\|$H5
?? 'Hello, world!' D2~*&'4y
.> ge8ZsaiU
amY!qg0P*
{&1/V
OCaml 6i3$C W
let main () = gp.^~p]x
print_endline "Hello world!";; ?m"( Soh
*u;Iw{.{
1#+S+g@#
Pascal YS"=yye3e
program Hello; v):Or'$~M
begin ji0@P'^;
writeln('Hello, world!'); t\7[f >
end. z!9-:
E+;7>ja
t;\Y{`
Perl P( 8OQL:
#!/usr/local/bin/perl o0KL5].
print "Hello, world!\n"; @|YH|/RF
YT(AUS5n
BLD gt~h#
PHP A6(/;+n
<?php DEZveQr=
print("Hello, world!"); *(DV\. l`
?> vUM4S26"NT
P+/e2Y
zIAD9mQex
Pike l2Rb\4
#!/usr/local/bin/pike cSV aI
int main() A2Gevj?F$
{ \
}G>8^
write("Hello, world!\n"); k;FUs[
return 0; 3)ywX&4"L
} ^k9I(f^c-_
wI/iuc
F7#JLE=
PL/I H9e<v4c
Test: procedure options(main); {R6ZKB
declare My_String char(20) varying initialize('Hello, world!'); $6SW;d+>n
put skip list(My_String); 1]b.fD
end Test; 8bld3p"^
~b8]H|<'Y
P/_['7
Prolog 9 djk[ttA)
goal -(H0>Ap
write("hello,world!"). %1+4_g9
(SAs-
TOQP'/
Python c{w2Gt!
#!/usr/local/bin/python qlPT Ll
print "Hello, world!" 0LJv'
FU4L6n
f) L
REXX )lDD\J7
say "Hello, world!" IjnU?Bf
Pe3o;mx
z~s PXGb
Ruby 13x p_j
#!/usr/bin/ruby `VguQl_,gA
print "Hello, world!\n" Otn1wBI
=@~Y12o?%
^^ixa1H<
Scheme ' S/gmn
(display "Hello, world!") fe_5LC"
(newline) 3%b6{ie/=
uoh7Sz5!^
]:J$w]\
sed (需要至少一行输入) 4^o^F-k'
sed -ne '1s/.*/Hello, world!/p' @cXMG6:{
uQKT
63IM]J
Smalltalk O0H.C0}
Transcript show: 'Hello, world!' z+X}HL
b@hqz!)l`
'!B&:X)
SNOBOL J5,9_uo]
OUTPUT = "Hello, world!" Ab.(7GFK
END ~((O8@}J
F*ylnB3z
sK?twg;D*|
SQL l+0oS'`V*L
create table MESSAGE (TEXT char(15)); BnF^u5kv %
insert into MESSAGE (TEXT) values ('Hello, world!'); I{=Qtnlb
select TEXT from MESSAGE; NC6&x=!3
drop table MESSAGE; g*+>H1}
[v!f<zSQK
_7_Y={4=`
Tcl :?1Dko^
#!/usr/local/bin/tcl 8'y$M] e9n
puts "Hello, world!" 0?|<I{z2
")p\q:z6
Z6MO^_m2
TScript *MW\^PR?
? "Hello, world!" >uEzw4w
IO<6
="l/ klYV
Turing b^vQpiz
put "Hello, world!" )Hr`MB
YKK*ER0
XfIJ4ZM5
UNIX-style shell Ar#(psU
程序中的/bin/sh可改为您使用的shell B/Ws_Kv
deh*Ib:(S
#!/bin/sh
6(R<{{
echo 'Hello, world!' N?`' /e
!ULn7\@
:e+jU5;]3
GUI <<O$ G7c
.O<obq~;C
Delphi 9_h[bBx-'Q
program HelloWorld; ZXPX,~ 5o
uses p!AAFmc
Dialogs; JC}D`h
begin
|-~Y#]
ShowMessage('Hello, World!'); Pr
C{'XDlU
end. a(ZcmYzXU
=:U`k0rn!
+:/%3}`
Nuva :7;@ZEe
<. as=fCuJ
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) %^6F_F_jS
.> {?7Uj
w_V P
J
b*lkBqs$
Visual Basic MomwX
MsgBox "Hello, world!" ;8 lfOMf
'或者 vW@=<aS Z
Print "Hello, world!" Y8t8!{ytg
?:9"X$XR
8zq=N#x
Visual FoxPro sNFlKQ8)Q
? "Hello, world!" $<[79al#
4s
oJ.j8
*lJxH8 \
X11 ~pky@O#b
用一个程序 uCB=u[]y4
F,CTZ~
xmessage 'Hello, world!' %J-GKpo/S
>y+B
用C++和gtkmm 2 `\ol,B_l
i,VMd
#include <iostream> O^rD HFj,
#include <gtkmm/main.h> b|(:[nB
#include <gtkmm/button.h> |JsZJ9W+J
#include <gtkmm/window.h> Y}KNKO;
using namespace std; `kSZX:=};
`XDl_E+>l
class HelloWorld : public Gtk::Window RT8 ?7xFc
{ G^@5H/)
public: 9W);rL|5
HelloWorld(); 7a}k
virtual ~HelloWorld(); AQ^u
protected: +
>!;i6|
Gtk::Button m_button; b\,+f n
virtual void on_button_clicked(); y8xE
6i
}; )Q JUUn#
(**oRwr%
HelloWorld::HelloWorld() : m_button("Hello, world!") ]eV8b*d6
{ K:WDl;8(d
set_border_width(10); -D:b*D
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 1{.9uw"2S
add(m_button); X5w$4Kj&4l
m_button.show(); :rP=t ,
} o5)<$P43
e+=K d+:k
HelloWorld::~HelloWorld() {} iN.n8MN=I
$<OD31T
void HelloWorld::on_button_clicked() y>ktcuML
{ !H\F2Vxs
cout << "Hello, world!" << endl; ~F#j#n(=`q
} ^=*;X;7
]I6 J7A[
int main (int argc, char *argv[]) &xExyz~`
{ A":T1s
Gtk::Main kit(argc, argv); @PIp*[7oC
HelloWorld helloworld; 8xMX
Gtk::Main::run(helloworld); vw@S>GlGg
} Ni7nq8B<
-I%5$`z
rSNi@;
Java c[s4EUG
import java.awt.*; (w zQ2Dk
import java.awt.event.*; ?r!o~|9|
[<TrS/,)>
public class HelloFrame extends Frame U%/+B]6jP
{ -ze J#B)C
HelloFrame(String title) R^e'}+Z
{ H6gSO(U
super(title); &,)&%Sg[
} IvNT6]6 P
public void paint(Graphics g) 3r1*m
+
{ 8l">cVo]T
super.paint(g); ;O#>Y
java.awt.Insets ins = this.getInsets(); q0\6F^;M
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Zgb!E]V[
} ]JR +ayk7
public static void main(String args []) M'l ;:
{ OB}Ib]
HelloFrame fr = new HelloFrame("Hello"); yF/j Fn
aQI(Y^&%3
fr.addWindowListener( BLJj(-
new WindowAdapter() wS3'?PRX
{ a09<!0Rp
public void windowClosing(WindowEvent e) y~HP>~Oh
{ #Rr%:\*
System.exit( 0 ); `wU!`\
} XB5DPx
} \.}c9*)
); 9MqGIOQ${j
fr.setResizable(true); NyuQMU
fr.setSize(500, 100); 7>*vI7O0l
fr.setVisible(true); Vf1^4t
} Dum9lj
} N4HqLh23H
AwF:Iu^3n
8Cv?Z.x5
Java Applet h@wgd~X9
Java Applet用于HTML文件。 HkVB80hv
Jfl!#UAD|n
HTML代码: 7cMv/g^h@
uXl3k:_n
<HTML> An/|+r\
<HEAD> 3irl
(;v
<TITLE>Hello World</TITLE> '/%H3A#L
</HEAD> H" 7u7l
<BODY> p{dj~ &v
Mrb)
HelloWorld Program says: W=4FFl[
m~ee/&T
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> a"u0Q5J
</APPLET> 3HK\BS
,9
a
</BODY> YKf0dh;O
</HTML> *DhiN
}W,[/)MO
Java代码: UkGCyGyZ[
{BU;$
import java.applet.*; w@fi{H(R
import java.awt.*; IEvdV6{K
Jj%K=sw
public class HelloWorld extends Applet ""~ajy
{ Yu2Bkq+
public void paint(Graphics g) Ny)X+2Ae
{ C+&l<
fM&
g.drawString("Hello, world!", 100, 50); DLNbo2C
} jb!i$/%w
} IV)j1
18:%~>.!
0+b1vhQ
java script #C@FYOf*
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。 7"D.L-H
)@bQu~Y
<script language="java script"> 3"\l u?-E
function helloWorld() Pj%|\kbNs
{ |#N&