“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。 hG3b7!^#g
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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》。 iLFF "Hs
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以下是用不同语言写成的Hello World程序的几个例子: +lE 9*Gs_$
Ada 65MR(+3
with Ada.Text_Io; use Ada.Text_Io; {+Eq{8m`
procedure Hello is NC0x!tJ#7
begin bGDV9su
Put_Line ("Hello, world!"); 7XdLZ4ub
end Hello; @ij}|k%*
nE,"3X"
_w(SHWh2
汇编语言 (zUERw\aX
0Ebs-kP
x86 CPU,DOS,TASM VN*^pAzlF
MODEL SMALL #SQFI;zj
IDEAL GCc@
:*4[
STACK 100H w(s"r p}
eRD s?n3F
DATASEG Nmp1[/{J
HW DB 'Hello, world!$' .4U::j}
#VD[\#
CODESEG DUa`8cE}
MOV AX, @data KbSIKj
MOV DS, AX ]_j{b)t
MOV DX, OFFSET HW j5tA!o
MOV AH, 09H 5&6S["lt
INT 21H kIM* K%L}
MOV AX, 4C00H 7Ij FSN>
INT 21H 7j{SCE;
END J}lBKP:-*
Z5\u9E"]
Zs)HzOP)9
x86 CPU,GNU/Linux,NASM kyz_r6
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 4K:p
;Enter this into "hello.asm" then type: d&t|Y:,8
;"nasm -f elf hello.asm" AOhsat;O`
;"ld hello.o -o hello" p.&FK'&[0
;"./hello" 8L.Y0_x
]M>mwnt+
section .data ;data section declaration N3i}>Q)B
msg db 'Hello World!',0AH 1[/X$DyaK
len equ $-msg ;string length "w=.2A:q
7+=fD|Cl
section .text ;code section declaration ]0g<][m
global _start ;entry point (start of execution) 03[(dRK>=
_start: mov edx,len ;string length P)ZGNtO9fG
mov ecx,msg ;string start K5'@$Km
mov ebx,1 ;file handle: stdout W~FcU+a
mov eax,4 ;sys_write .\qZkk}2l
int 80h ;kernel system call <[kdF")
rs'~' Y
mov ebx,0 ;return value IC37f[Q
mov eax,1 ;sys_exit DTPYCG&%
int 80h ;kernel system call L<*wzl2Go
or>5a9pj
*tO7A$LDT
x86 CPU,Windows,MASM32 nO2-fW:9]
.386 o|(-0mWBQA
.model flat,stdcall C%0 |o/Wi
option casemap:none <e)3 j6F!
;Include 文件定义 mRFcZ.7
include windows.inc 5
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include user32.inc Sr/"'w;
includelib user32.lib QVm3(;&'
include kernel32.inc {088j?[hzk
includelib kernel32.lib vEOoG>'Zq
;数据段 :J5xO%WA(
.data P$4G2>D8dg
szCaption db 'A MessageBox!',0 MW6d-
szText db 'Hello,world!',0 S2h?Q$e3
;代码段
D`2Iy.|!
.code Mq8jPjL
start: NAlYfbp
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK +t})tDPXw
invoke ExitProcess,NULL a3sXl+$D@
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> a>G|t5w
end start s-~Tf|
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vn9_tL&
AWK hj4Kv
BEGIN { print "Hello, world!" } u+~Ta
p{[Ol
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BASIC
/MO|q
传统版BASIC(例如GWBASIC): gyondcF
1zl6Rwk^o
10 PRINT "Hello, world!" oyiEOC
20 END :"#EQq]ct
AbC/
或在提示符输入: ]2+7?QL,
_t_X`
?"Hello, world!":END mvyqCOp 0
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现代版BASIC(例如Quick BASIC): 4jfkCU
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KsX+sd
Print "Hello, world!" }1f@>'o
T&
以下的语句在Quick BASIC中同样有效: dd@qk`Zl&A
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? "Hello,world!" `B}(Ln
]'3e#Cqeh
E9!u|&$S
BCPL J]^)vxm3
GET "LIBHDR" Ph'*s{
DBI[OG9
LET START () BE `BG{\3>
$( JBo/<W#|
WRITES ("Hello, world!*N") rhGHR5
g
$) ,b%T[s7
.^6"nnfA#
bwR24>8lP
Befunge hz\Fq1
"!dlrow olleH">v V\^3I7F
, yCy4t6`e
^_@ ,A
T!:&<X
NguJ[
0'{0kE[wn
Brainfuck QqA~y$'ut
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ^Qt4}V=
+++++++++++++++.>.+++.------.--------.>+.>. AL74q[>
z|;7;TwA
BFmd`#{l
C ? >SC:{(
#include <stdio.h> 8M9 &CsT6
j'Z};3y
int main(void) eLXG _Qb"
{ U ?P5cN
printf("Hello, world!\n"); W 0%FZ0l
return 0; fOs"\Y4
} ?4GI19j
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lS&$86Jo(
C++ 'yu M=Pb
#include <iostream> :_E
q(r
x2(!r3a
int main() .>NhC"
{ Yj99[
c#]
std::cout << "Hello, world!" << std::endl; z;yb;),
return 0; !r]elX
} }>Gnpc
P~$FgAV
{h5 S=b
C++/CLI 6m"_=.k%
int main() %T4htZa
{ b1Bu5%bt,:
System::Console::WriteLine("Hello, world!"); KLK
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} m_{OCHS+
P{v>o,a.
;`Eie2y{M
C# (C Sharp) c|OIUc
class HelloWorldApp -h+=^,
{ O)NEt
public static void Main() VDq4n;p1
{ k$1ya7-@
System.Console.WriteLine("Hello, world!"); H. U wM
} W|XTa
} E#?*6/
S(<r-bV<
%upnXRzw
COBOL EkS7j>:
IDENTIFICATION DIVISION. 8q*MhH>6I
PROGRAM-ID. HELLO-WORLD. U9GmkXRix
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ENVIRONMENT DIVISION. Ej\EuX
C,T9xm
DATA DIVISION. HH
=sq
|_ ZD[v S
PROCEDURE DIVISION. D.elE:
DISPLAY "Hello, world!". `vs=
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STOP RUN. Blv!%es
Z
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SJ$N]<d
Common Lisp cz<8Kb/XV
(format t "Hello world!~%") #Bq.'?c'~
Qwl=/<p1
<8Y;9N|94!
DOS批处理 "e.QiK
@echo off 8 Yfg@"Tn
echo "Hello, world!" l`D^)~o8
."9t<<!
s6Ox!)&
Eiffel Zo`Ku+RL2'
class HELLO_WORLD JRQ{Q"`)
1d)wE4c=Z
creation Z'sAu#C
make dm;H0v+Y'
feature J!r,ktO^U?
make is ivL}\~L
local 5y]1v
io:BASIC_IO vowU+Y
do y+D 3(Bsn
!!io 2D|2/ >[
io.put_string("%N Hello, world!") Omy4Rkj8bh
end -- make b=[gK|fu
end -- class HELLO_WORLD `;Qw/xl_N
t<S]YA~N'
W'2T7ha Es
Erlang za{z2#aJ
-module(hello). Us4J[MW<
-export([hello_world/0]). 34S|[PXd
7-a[W
hello_world() -> io:fwrite("Hello, World!\n"). ($a ?zJr
zs#s"e:jeR
h'Tn&2r6
Forth Q|40
8EM
." Hello, world!" CR ~&-8lD];LM
fh~"A`d
R Fgy
Fortran q;co53.+P)
WRITE(*,10) a(}dF?M=
10 FORMAT('Hello, World!') vd>K=!
J
STOP |X&.+RI
END hT :+x3
@j
+8 M
7w}D2|+
HTML x:'M\c7
<HTML> ~3k& =3d]
<HEAD> l|#WQXs*c{
<TITLE> Hello World! </TITLE> OU)~
02|\
</HEAD> ;A^0="x&
<BODY> jwsl"zL
<p>Hello World!</p> w`Q"m x*
</BODY> 0Y rdu,c
</HTML> c)H(w
4dy2m!
a^yBtb~,P
HQ9+ lZT9 SDtS
H h{zE;!+)D
/Mk85C79
@**@W[EM
INTERCAL a& >(*PQ
PLEASE DO ,1 <- #13 Z4YQ5O5
DO ,1 SUB #1 <- #238 >~O36q^w
DO ,1 SUB #2 <- #112 hw[ jVx
DO ,1 SUB #3 <- #112 +$]eA'Bh@
DO ,1 SUB #4 <- #0 TBq;#+1W
DO ,1 SUB #5 <- #64 |n9~2R
DO ,1 SUB #6 <- #238 I5RV:e5b
DO ,1 SUB #7 <- #26 qyXx`'e
DO ,1 SUB #8 <- #248 !'uLV#YEZ
DO ,1 SUB #9 <- #168 >r Nff!Ow
DO ,1 SUB #10 <- #24 Y|ONCc
DO ,1 SUB #11 <- #16 diXb8L7B;
DO ,1 SUB #12 <- #158 Wtl0qug
DO ,1 SUB #13 <- #52 mNcoR^(VN
PLEASE READ OUT ,1 cSdkhRAn
PLEASE GIVE UP CPRv"T;?
4%l
@
emZ^d/A
Java En@] xvE
public class Hello `x;8,7W;B
{ )
V}q7\G~
public static void main(String[] args) k+k&}8e
{ $'$#Xn,hU
System.out.println("Hello, world!"); _4E .
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} W}+f}/&l
} =GO/r;4
)c9]}:W&
5`:+NwXS2
JSP U3SF'r8
<% ">b~k;M?
out.print("Hello, world!"); >FtW~J"X
%> }@IRReQ
}z/;^``
rE?(_LI
MIXAL RG(m:N
TERM EQU 19 the MIX console device number s3m]rC
ORIG 1000 start address ?h`Ned0P
START OUT MSG(TERM) output data at address MSG ] iKFEd
HLT halt execution BKoc;20;
MSG ALF "MIXAL" 1FfdW>ay*
ALF " HELL" $V"NB`T
ALF "O WOR" qX'w}nJ}H}
ALF "LD " xl5n(~g)p
END START end of the program $YDZtS&h
@g|Eb}t
qwAN=3@
Nuva wn*z*
<..直接输出..> x?Wt\<|h!
Hello, world! UN`F|~@v
COS(pfC
<..或者..> ejj|l
>:l;W4j
<. oo\0X
// 不带换行 YJgw%UVJ5m
? "Hello, world!" JL~QE-pvD
b`Wn98s
// 或者 z-G|EAON"/
&y1' J
// 带换行 ?p{xt$<p
?? 'Hello, world!' \jn[kQ+pJ
.> <j1l&H|ux,
a,Gd\.D
I\R5Cb<p
OCaml zUn>
)#ZC
let main () = G9\Bi-'ul
print_endline "Hello world!";; Y""-U3;T~
yI9~LTlA3
7Dy\-9:v
Pascal 5qco4@8
program Hello; b6D}GuW
begin K?')#%Z/{#
writeln('Hello, world!'); RL>Nl ow
end. od>DSn3T
y:!MWZ
x&3!z[m@@
Perl {]ZZ]
#!/usr/local/bin/perl `n8) o %E9
print "Hello, world!\n"; 8$avPD3jx
<i'4EnO
bAeN>~WvY
PHP SsjO1F
<?php -B2>~#L
print("Hello, world!"); lo:]r.lX{
?> Du>dTi~
VVuL+i
#bPio
Pike {! RW*B
#!/usr/local/bin/pike s-r$%9o5
int main() Ah)OyO6
{ *iF>}yh e
write("Hello, world!\n"); W|=?-
return 0; 7Z>u|L($m
} GCrh4rxgg
|0(Z)s,
b:7;zOtF
PL/I i;^
e6A>
Test: procedure options(main); LBtVK, ?
declare My_String char(20) varying initialize('Hello, world!'); M;W{A)0i1
put skip list(My_String); 9\*xK%T+
end Test; CogLo&.
=mCUuY#
j' -akXo<
Prolog VL"ZC:n)-
goal tklU
zv
write("hello,world!"). ?mY )m
+
~fsAPIQ
0TSj]{[
Python xc R
#!/usr/local/bin/python s)yEVh
print "Hello, world!" +3vK=d_Va
EF0{o_
VS^%PM#:/
REXX ,*0>CBJvv
say "Hello, world!" xk86?2b{)
mKZ?H$E%%
O7j$bxk/^
Ruby J{$C}8V
#!/usr/bin/ruby !.L%kw7z
print "Hello, world!\n" 3P/T`)V
r4NI(\gU
5d|*E_yu
Scheme 7&NRE"?G
(display "Hello, world!") e~J% NU '&
(newline) q=bJ9iJsq
RrLQM!~
(|ga#%iI
sed (需要至少一行输入) t=S94^g
sed -ne '1s/.*/Hello, world!/p' <PW*vo9v
|x{:GWq
m&,d8Gss^
Smalltalk 8,Yc1
Transcript show: 'Hello, world!' F$ Us! NN
cR$2`:e
BmUEo$w
SNOBOL 4cJ^L <
OUTPUT = "Hello, world!" X =S;8=N
END Du$kDCU
?`\<t$M
:<ujk
SQL i1vBg}WHN
create table MESSAGE (TEXT char(15)); n5UcivyX
insert into MESSAGE (TEXT) values ('Hello, world!'); (W3R3>;
select TEXT from MESSAGE; abD55YJY
drop table MESSAGE; ;eG%#=>
~n]:f7?I
t> &$_CSWK
Tcl
ceVej'
#!/usr/local/bin/tcl ;^}cZ
puts "Hello, world!" ]S,I}NP
&[I#5bGk
\EYhAx`2
TScript FlVGi3
? "Hello, world!" I=f1kr
pR
4OCz:t
LLgN%!&
Turing ,0<|&D
put "Hello, world!" BEPDyy
j/ 9FiuK
3KB)\nF#%
UNIX-style shell L)Un9&4L
程序中的/bin/sh可改为您使用的shell y+Q!4A
p`{<q
-
#!/bin/sh Fxv~;o#
echo 'Hello, world!' Yl8tjq}iC
)^%,\l-!
]t0?,q.$7
GUI N
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{ +
[rJ_
Delphi 3dadeu^{A
program HelloWorld; E'[pNU*"x-
uses /J{P8=x}_:
Dialogs; uHz
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begin X/5tZ@
ShowMessage('Hello, World!'); ,X$S4>
end. yKZ~ ^
X,O&X
2)[81a
Nuva w'M0Rd]
<. 5?9}^s4
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 4CX *
.> 8Mws?]\/q
axU!o /m>
aeSy,:
Visual Basic J>hl&J
MsgBox "Hello, world!" seAkOIc
'或者 sS5#Q
Print "Hello, world!" nkN]z
^j
=5dv38
K<Yh'RvTD
Visual FoxPro y*Ex5N~JC
? "Hello, world!" PK3T@Qv89
+|#sF,,X4g
2U~oWg2P
X11 lt,x(2
用一个程序 [`ttNW(_
,Hys9I
xmessage 'Hello, world!' v%zI~g.L
_?q\tyf3
用C++和gtkmm 2 ?A62VV51CN
G-"#3{~2
#include <iostream> '|Q=J)
#include <gtkmm/main.h> dUjdQ
#include <gtkmm/button.h> Zpu>T2Tp
#include <gtkmm/window.h> rX;(48Y
using namespace std; i>)Whr'e8
8{?Oi'-|0
class HelloWorld : public Gtk::Window ;C{2*0"H|
{ u=rY
public: Yl-09)7s
HelloWorld(); 9SAyU%mS:
virtual ~HelloWorld(); Pq7YJ"Z?:
protected: 9QY)<K~a
Gtk::Button m_button; 4,$x~m`N
virtual void on_button_clicked(); C?hw$^w7T
}; Q~-g tEv+&
D"A`b{z
HelloWorld::HelloWorld() : m_button("Hello, world!") OkzfQ
hC}
{ cE]tvL:g
set_border_width(10); #exE~@fy-
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); {_(;&\5
add(m_button); MIt\[EB
m_button.show(); (x.K%QC)
} KsUsj3J
% j^=
HelloWorld::~HelloWorld() {} Atfon&^
G VEjB;
void HelloWorld::on_button_clicked() I[[rVts
{ "me Jn/
cout << "Hello, world!" << endl; GueqpEd2
} ?FMHK\
KY|Q#i|pM
int main (int argc, char *argv[]) [xI@)5Xk
{ Y/@4|9!
Gtk::Main kit(argc, argv); _v2FXm
HelloWorld helloworld; 4qyL' \d[
Gtk::Main::run(helloworld); %f{kT<XHu
} +;cw<9%0
Yj0Ss{Ep
H3a}`3}U
Java {Ja#pt
import java.awt.*; G e~&Ble
import java.awt.event.*; 1L &_3}
:1.$7Wt
public class HelloFrame extends Frame /3+7a\|mKr
{ ~"=nt@M]
HelloFrame(String title) 5%4:)s{4|
{ =euoSH
D}
super(title); Sl 6}5
} 2!" N9Adt
public void paint(Graphics g) >mt<`s
{ eU{=x$o6S
super.paint(g); MWhFNfS8=
java.awt.Insets ins = this.getInsets(); #~p1\['|M
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); `+*
M r
} pOS.`rSK
public static void main(String args []) ~9'VP}\
{ z@iY(;Qo
HelloFrame fr = new HelloFrame("Hello"); B~~rLo:a
>Y{.)QS
fr.addWindowListener( I S!B$
new WindowAdapter() *y N,e.t
{ 7 v`Y*D
public void windowClosing(WindowEvent e) 9*,5R,#
{ M>T#MDK\(
System.exit( 0 ); Gm>8=
=c
} Bxm^Arc>
} elP`5BuN
); y4shW|>5_
fr.setResizable(true); I{1w8m4O6
fr.setSize(500, 100); g~Q#U;]
fr.setVisible(true); pu `|HaQaE
} 2V F|T'h
} TH6g:YP`7
KUuwScb\
k87B+0QEL
Java Applet 1~5={eI
Java Applet用于HTML文件。 Qiw Zk<rb
yl3iU:+V
HTML代码: t0?BU~f
-JUv'fk
<HTML> 0 ]NsT0M
<HEAD> UGR5ILf
<TITLE>Hello World</TITLE> `9$?g|rB
</HEAD> Rmd;ug9
<BODY> |dXS+R1
.GS|H d
HelloWorld Program says: d~[>%&
=ohdL_6
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> p]pFZ";70
</APPLET> m0\(a_0V
v3aiX
</BODY> Vwv O@G7A
</HTML> :.sK:W("v
1S_KX.
Java代码: lYy0
]bS\*q0Zf(
import java.applet.*; nC`=quM9
import java.awt.*; !5=3Y4bg1
i4Fw+Z
public class HelloWorld extends Applet ,Xb :f/lB
{ uYO?Rb&}
public void paint(Graphics g) N8mK^{
{ /nC"'d(#
g.drawString("Hello, world!", 100, 50); I98wMV8
} c?z%z&
} JDMaLo
St&XG>nWS
VY![VnHsB
java script ^{Mx?]z
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。 @];Xbbw+c
Y
@K9Hl
<script language="java script"> 0e/~H^,SQ
function helloWorld() Uvz9x"0[u
{ H[6d@m- Z
alert("Hello World"); B;rq{ac!P]
} (1TYJ. Z
</script> ^&Qaf:M
{O!fV<Vx 9
<a href="java script:this.location()" 2@A7i<p
onclick="java script:helloWorld();">Hello World Example</a> ;N4mR6
wV(_=LF
n}._Nb
5
PostScript (r7~ccy4
PostScript是一种专门用来创建图像的语言,常用于打印机。 cLB"<mG
I:Z38xz -[
/font /Courier findfont 24 scalefont jp&