“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。 0v'!(&m
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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》。 YB"=eld
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以下是用不同语言写成的Hello World程序的几个例子: ]%I|C++0
Ada c_FnJ_+ +f
with Ada.Text_Io; use Ada.Text_Io; & _mp!&5XV
procedure Hello is 7aJ:kumDZ
begin [M&.'X
Put_Line ("Hello, world!"); Rge\8H/z
end Hello; =x}p>#o,J
Qi\"b
)UAkg
汇编语言 KN"<f:u
ZMmf!cKY:'
x86 CPU,DOS,TASM "E%3q 3|"l
MODEL SMALL 6G]hsgro
IDEAL c^`(5}39v
STACK 100H w4j,t
`E-cf 7%
DATASEG R6-Z]Hu
HW DB 'Hello, world!$' _/cL"Wf
\Ea(f**2B
CODESEG T/TMi&:?.
MOV AX, @data _A,mY6*
MOV DS, AX }g_\?z3gt
MOV DX, OFFSET HW i=X
B0-
MOV AH, 09H ::2(pgH
INT 21H s!WI:E7
MOV AX, 4C00H |!"qz$8fB
INT 21H @]X5g8h
END C,nU.0
H:.l:PJ
9\KMU@Ne
x86 CPU,GNU/Linux,NASM `nEe-w^9)I
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). w~}.c:B
;Enter this into "hello.asm" then type: ?qR11A};tG
;"nasm -f elf hello.asm" 'uU{.bq
;"ld hello.o -o hello" _e94
;"./hello" `rZS\A
1$1P9x@H
section .data ;data section declaration X!!3>`|
msg db 'Hello World!',0AH fm&pxQjg
len equ $-msg ;string length 6;#Rd|
]c\d][R N
section .text ;code section declaration %
n~
'UA
global _start ;entry point (start of execution) 0=V
-{
_start: mov edx,len ;string length -1c{Jo
mov ecx,msg ;string start <^fvTb &*
mov ebx,1 ;file handle: stdout I#9q^,,F
mov eax,4 ;sys_write *W$bhC'w
int 80h ;kernel system call NAh^2X
ZCz#B2Sf8
mov ebx,0 ;return value _Sn45h@"
mov eax,1 ;sys_exit &@/25Y2
int 80h ;kernel system call WC`x^HI
~dlpoT
z 3N'Xk
x86 CPU,Windows,MASM32 52#Ac;Y
.386 L}\~)
.model flat,stdcall L1YiXJ,T,
option casemap:none I"bz6t\~|
;Include 文件定义 ^{l$>e]
include windows.inc ; )rXQm
include user32.inc *g!7PzJ'
includelib user32.lib 5;q{9wvqO
include kernel32.inc 0.
mS^g,M-
includelib kernel32.lib v 5dLjy5
;数据段 .l +yK-BZ
.data >
,;<Bz|X
szCaption db 'A MessageBox!',0 ^~K[ bFbW
szText db 'Hello,world!',0 j-9Zzgr
;代码段 [ %6(1$Ih
.code <zt124y-6
start: $#/f+kble
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK K | '`w.
invoke ExitProcess,NULL ']DUCu
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> yNOoAnGT W
end start +S
],){
Ucd~-D
Qkb=KS%z
AWK 0UOjk.~b
BEGIN { print "Hello, world!" } oJe`]_XZ
eH^~r{{R
aDZ] {;
BASIC NNw0
G&
传统版BASIC(例如GWBASIC): 8=,-r`oNy
rWNywxnT
10 PRINT "Hello, world!" osZ]R
20 END Lf+"Gp
B\Uocn
或在提示符输入: lL"ANlX-P
ki'CW4x
?"Hello, world!":END g[$4a4X
^/fasl$#
现代版BASIC(例如Quick BASIC): (0u(<qA\
66-G)+4
Print "Hello, world!" R(p3*t&n
U6F1QLSLz
以下的语句在Quick BASIC中同样有效: Cxra(!&
{.o@XP,.
? "Hello,world!" 3{9d5p|\i
}va>jfy
3 @%XR8ss
BCPL <d~si^*\ch
GET "LIBHDR" IQeiT[TF
y7|
3]>Z
LET START () BE S pk8u4
$( iB#*XJ;q
WRITES ("Hello, world!*N") lb\VQZp!y
$) .JX9(#Uk
DhD^w;f]
do:IkjU~
Befunge ?}"39n
"!dlrow olleH">v cG,zO-H
, R'Uf#.
^_@ fi [4F
OTzuOP8
u7lO2C7
Brainfuck k8 z1AP
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< $rm/{i_7
+++++++++++++++.>.+++.------.--------.>+.>. D|$Fw5!^k6
y_r(06"z1
n}/4em?
C M< /
#include <stdio.h> tn}MKo
pT/z`o$#V
int main(void) B}0!b7!
{ q5{h@}|M
printf("Hello, world!\n"); .I.B,wH8
return 0; 2]=`^rC*
} `G`yA%
bX>R9i$
$[\\{XJ.
C++ nXw98;
#include <iostream> T{)_vQ
v?_L_{x;W
int main() (D0\uld9
{ &yG5w4<
std::cout << "Hello, world!" << std::endl; ^09-SUl^
return 0; Q2[;H!"
} 7=gcdfW,;x
UCJx{7
!cW!zP-B*p
C++/CLI Up5 |tx7
int main() E8BIb 'b;
{ PU8dr| !
System::Console::WriteLine("Hello, world!");
fj'7\[nZ
} 3,- [lG@o
>:HmIW0PLe
[Qcht,\^v
C# (C Sharp) EB VG@
class HelloWorldApp f+1@mGt
{ QD%!a{I
public static void Main() q _Z+H4
{ </2 aQn
System.Console.WriteLine("Hello, world!"); -5JN`
} ["[v
} )]kxLf#
%77uc9}
d,toU I
COBOL l=ZD&uK
IDENTIFICATION DIVISION. _@W1?;yD
PROGRAM-ID. HELLO-WORLD. mM:%-I\$
-e"A)Bpl(
ENVIRONMENT DIVISION. :kFPPx?
;GIA`=a%
DATA DIVISION. w[C*w\A\M
E+lr{~
PROCEDURE DIVISION. RFoCM^
DISPLAY "Hello, world!". ?tA%A
STOP RUN. EjMVlZC>
m`}mbm^
5Dzf[V^]`
Common Lisp U~USwUzgY
(format t "Hello world!~%") 3&mpn,
Ft38)T"2R\
kc(m.k!|f\
DOS批处理 [+Fajo;0
@echo off a~ dgf:e`
echo "Hello, world!" b~r:<:;
'$), i>6gJ
TD%&9$F
Eiffel )Xa_ry7
class HELLO_WORLD |Z)}-'QUJ
] E:NmBN<
creation @dx8 {oQ
make U$Z<lx2P
feature ;wkMa;%`g|
make is k7j.VpN9
local *jvP4Nz)k
io:BASIC_IO |1zfXG,R
do ]6M,s0
!!io @yo6w}3+-
io.put_string("%N Hello, world!") @<`V q
end -- make Lq;T\m_de
end -- class HELLO_WORLD iD*Hh-
fp*6Dv_
T<"Bb[kH
Erlang v>j,8E
-module(hello). F]D{[dBf
-export([hello_world/0]). *@p"
8d_J9Ho
hello_world() -> io:fwrite("Hello, World!\n"). RMiDV^.u`
UI"UBZZ$
2gh=0%|\gx
Forth |L`U2.hb
." Hello, world!" CR ;|0P\3
$v #
/
g{8
Fortran _VVq&t}
WRITE(*,10) r-go921
10 FORMAT('Hello, World!') 6<T:B[a-
STOP Il Qk W<
END g?Tev^D
/_})7I52
Arm'0)B>
HTML j#~~_VA~
<HTML> /Ry%K4$
<HEAD> ]E$NJq|
<TITLE> Hello World! </TITLE> vbn=ywz
</HEAD> kDDC@A $
<BODY> W=3#oX.GsU
<p>Hello World!</p> #4./>}G
</BODY> ^lt2,x
</HTML> ZE-vroh
A]TEs)#*7)
V?1[R
HQ9+ =yz"xWH
H /,\U*'-
1Y*k"[?dW
8lzoiA_9
INTERCAL Le:C8^
PLEASE DO ,1 <- #13 [^s;Ggi9
DO ,1 SUB #1 <- #238 dW%t ph
DO ,1 SUB #2 <- #112 G;flj}z
DO ,1 SUB #3 <- #112 2|=hF9
DO ,1 SUB #4 <- #0 .|^Gde
DO ,1 SUB #5 <- #64 ,dR.Sacv
DO ,1 SUB #6 <- #238 z=) m6\
DO ,1 SUB #7 <- #26 9I]Bt=2z
DO ,1 SUB #8 <- #248 c8YbBdk'
DO ,1 SUB #9 <- #168 qFwt^w
DO ,1 SUB #10 <- #24 icIn>i<m
DO ,1 SUB #11 <- #16 Zp3-Yo w2
DO ,1 SUB #12 <- #158 >h)kbsSU0z
DO ,1 SUB #13 <- #52 bXvO+I<
PLEASE READ OUT ,1 `-.2Z
0
PLEASE GIVE UP pB\:.?.pd
DqT<bNR1*;
Y(bB7tR
Java r'j88)^
public class Hello 2H}y1bkW
{ \fUX_0k9,
public static void main(String[] args) z4Zm%
{ %jy$4qAf%
System.out.println("Hello, world!"); ^h$*7u"^y
} ]t~.?)Ad+2
} tiE|%jOzt
5{k,/Z[L
'E9{qPLk(
JSP Lv]%P.=[G
<% "A"YgD#t
out.print("Hello, world!"); Qy0w'L/@
%> erW2>^My
't}\U&L.{
^n0;Q$\
MIXAL <O
0Q]`i
TERM EQU 19 the MIX console device number G(.G>8pf
ORIG 1000 start address Ba8=nGa4KY
START OUT MSG(TERM) output data at address MSG Q&xH
HLT halt execution c>K]$;}
MSG ALF "MIXAL" E&zf<Y
ALF " HELL" #jW -&a
ALF "O WOR" I2WP/
ALF "LD " cJaA*sg
END START end of the program }LS8q
4h@,hY1#
}n4 T!N
Nuva lbda/Zx
<..直接输出..> UjQz
Hello, world! (g@\QdH`|
*lvADW5e
<..或者..> cVW7I
BYX c
'K
<. Zh;wQCDj
// 不带换行 ,M.}Q ak^
? "Hello, world!" iW(LD1~7
rL1yq|]I
// 或者 HvG %##
'~&W'='b;
// 带换行 @6yc^DAA
?? 'Hello, world!' ;6P>S4`w
.> ?iP7Ki
Pgr2S I
(T#$0RFq
OCaml 7/IL"
D
let main () = Q}@t'
print_endline "Hello world!";; xyL)'C
{WrEe7dLy
0fXMY-$I
Pascal K 77iv
program Hello; G-T^1?
begin * )<+u~
writeln('Hello, world!'); >|A,rE^Ojt
end. S[3"?$3S
,~naKd.ZY
e9{0hw7
Perl dgpE3
37Lt
#!/usr/local/bin/perl "jum*<QZz
print "Hello, world!\n"; PiKP.
o@zxzZWg
6]b"n'G
PHP aNEah
<?php uKP4ur@1
print("Hello, world!"); FSA%,b;U
?> \uOM,98xS
uVn"L:_
RH;ulAD6(~
Pike U<w8jVE
#!/usr/local/bin/pike d=xjLbsZ
int main() =4eJ@EVM
{ .g*N+T6O
write("Hello, world!\n"); X>[i<ei
return 0; (0NffM1
} mp8GHV
"5V;~}=S
60!%^O =
PL/I _eiqs
Test: procedure options(main); 6/8K2_UeoW
declare My_String char(20) varying initialize('Hello, world!'); (NvjX})eh
put skip list(My_String); T"z<D+pN
end Test; Jr!BDg
;bB#Pg
}CBQdH&g;
Prolog '|SO7}`;Q
goal :Ph>\ aG
write("hello,world!"). "V>}-G&
!#)t<9]fv
]!/U9"_e"B
Python 1p.c6[9-
#!/usr/local/bin/python ~-zTY&c_
print "Hello, world!" le'RU1k
WY!\^| ,
M(I%y0
REXX XvaIOt>A
say "Hello, world!" }i~k:kmV
juOStTq<
OZxJDg
Ruby V6][*.i!9
#!/usr/bin/ruby [;z\bV<S
print "Hello, world!\n" Gw<D'b)!
!l
$d^y345
w{W+WJ
Scheme P5<9;PPbZ
(display "Hello, world!") A O:F*%Q u
(newline) c#N4XsG,
lr>NG,N
f(|k0$EIu
sed (需要至少一行输入) [ey#
,&T
sed -ne '1s/.*/Hello, world!/p' `MI;.t
uB
I/3aQ
oPmz$]_Z
Smalltalk ,j*9 )
Transcript show: 'Hello, world!' i=Qy?aU?
'8;bc@cE
xvOz*vM?
SNOBOL ))=6g@(
OUTPUT = "Hello, world!" eC!=4_lx)
END h =A
S.!,qv z
Nnh\FaI
SQL NuQ!huh
create table MESSAGE (TEXT char(15)); s>J5.Z7"'j
insert into MESSAGE (TEXT) values ('Hello, world!'); -MTk9<qnT
select TEXT from MESSAGE; #"UO`2~`l
drop table MESSAGE; wG,"X'1
MR1I"gqE}I
|E1U$,s~u
Tcl DJ"PP5d
#!/usr/local/bin/tcl `"=>lu2H
puts "Hello, world!"
I<D#
K
";Et
;g!rc#z2g
TScript Q-oDmjU
? "Hello, world!" 6'^E
],:b
;TJpD0
n*7^lAa2
Turing +c~&o83[
put "Hello, world!" ]:gW+6w"C
Ok_}d&A
w#b@6d
UNIX-style shell zQyI4RHG[
程序中的/bin/sh可改为您使用的shell _2jL]mB
PB@IPnB-
#!/bin/sh VgNB^w
echo 'Hello, world!' L/ 7AGR|;C
@ual+=L
yu'-'{%
GUI 4Im>2)
R&Lqaek&W
Delphi
mWv$eR
program HelloWorld; E]mm^i`|
uses 9-pt}U
Dialogs; %aNm j)L
begin <Z%=lwtX
ShowMessage('Hello, World!'); ,\6Vb*G|E>
end. 712nD ?>
r84^/+"T
R/oi6EKv
Nuva j0e,>X8
<. kkjugm{D7
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) qofAA!3z
.> Z5vdH5?!r
$2a"Ec!7
v'i'I/
Visual Basic )h}IZSm
MsgBox "Hello, world!" *S}@DoXS
'或者 $Lp [i
<O]
Print "Hello, world!" WutPy_L<
t5+p]7
Y1h)aQ5{
Visual FoxPro a?-&O$UHf\
? "Hello, world!" WML--<dU
c& ;@i$X(
*a Z1 4
X11 76 !LMNf
用一个程序 :i<*~0r<
zP,r,ok7
xmessage 'Hello, world!' R;!,(l
!mxH/{+|n
用C++和gtkmm 2 BEOPZ[Q|c
hWy@?r.
#include <iostream> lEHx/#qt9
#include <gtkmm/main.h> *6?mZ*GYY
#include <gtkmm/button.h> i"<W6
#include <gtkmm/window.h> (\F9_y,6*\
using namespace std; 1b%Oi.;
(I~
class HelloWorld : public Gtk::Window n[Q(q[ULV
{ r-y;"h'
public: _Ay^v#a
HelloWorld(); UQu6JkbLL
virtual ~HelloWorld(); :(A&8<}-6
protected: q}Q G<%VR
Gtk::Button m_button; GTR*3,rw
virtual void on_button_clicked(); (p5q MP]L
}; Tdcc<T
gML8lu0)
HelloWorld::HelloWorld() : m_button("Hello, world!") gxl7jY
{ $E@n;0P
set_border_width(10); &x1A{j_
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); @S@VsgQ%3Z
add(m_button); hr];!.Fv
m_button.show(); "OenYiz
} F1.Xk1y%
\ivxi<SR
HelloWorld::~HelloWorld() {} 'V?FeWp
9qftMDLZJ\
void HelloWorld::on_button_clicked() -~]H5er`
{ Mc,|C)
cout << "Hello, world!" << endl; O.+J%],
} ZPH_s^
2p&$bft
int main (int argc, char *argv[]) @*y4uI6&
{ [`@M!G.
Gtk::Main kit(argc, argv); 7su2A>Ix
HelloWorld helloworld; qTJ0}F
Gtk::Main::run(helloworld); M#gxiN
} "%Ok3Rvv
." xP{
oJ4HvrUO
Java tY;<S}[@7w
import java.awt.*; 0I.KHIBk
import java.awt.event.*; %j\&}>P4$
ui>jJ(
public class HelloFrame extends Frame gL_1~"3KGC
{ W/,bz",v3
HelloFrame(String title) 1O`V_d)
{ Po)U!5Tm
super(title); ;0Z-
} j1;[6XG
public void paint(Graphics g) 7*PBJt\
{ ;y,g%uqE
super.paint(g); 3/+kjY/
java.awt.Insets ins = this.getInsets(); G Y%5N= u
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); v^ ^Ibv
} bW=q G
public static void main(String args []) TO.b-
;
{ yn\c;Z
HelloFrame fr = new HelloFrame("Hello"); Ss%Cf6qdWL
g)#?$OhP"
fr.addWindowListener( dM;\)jm
new WindowAdapter() c
K\
{ xeFx!$3
public void windowClosing(WindowEvent e) ee?
d?:L
{ >8"(go+02
System.exit( 0 ); FygNWI '
} >pp/4Ia!
} ycBgr,Ynu<
); 3JGrJ!x
fr.setResizable(true); 2OJlE)
.
fr.setSize(500, 100); v;\cM/&5
fr.setVisible(true); BI?, 3
} G[ U5R?/
} $l*?Ce:
)8C`EPe
m538p.(LIR
Java Applet X|a{Z*y;r*
Java Applet用于HTML文件。 7dY_b
\(pwHNSafk
HTML代码: "d)YqQ
#ELeW3
S}
<HTML> b\0>uU
<HEAD> B2kZ_4rB
<TITLE>Hello World</TITLE> fx|d"VF[
</HEAD> t}k:wzZ@
<BODY> k( Sda>-
gbzBweWF
HelloWorld Program says: sY!JB7!j
Ypzmc$Xfu
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> F{jxs/~
</APPLET> Q$ew.h
N~flao^
</BODY> Nqj@p<y/q
</HTML> &j:e<{@
:O413#8
Java代码: MJiVFfYW
4wSZ'RTSR
import java.applet.*; B/l^=u+-
import java.awt.*; n,FyK`x
o:{Sws(=
public class HelloWorld extends Applet dI\_I]
{ ^"7-`<J
public void paint(Graphics g) 8p 4[:M@
{ 1*p6UR&
g.drawString("Hello, world!", 100, 50); =
zmxki
} >fYcr#i0[
} (Huvo9
rY(7IX
~T;:Tg*
java script KD A8x W
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。
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