“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。 2*iIjw3g
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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》。 uxaYCa?
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以下是用不同语言写成的Hello World程序的几个例子: Q'O[R+YT ,
Ada y|wlq3o
with Ada.Text_Io; use Ada.Text_Io; /FP5`:PfL
procedure Hello is Q[F}r`
begin %zk$}}ti.
Put_Line ("Hello, world!"); Y!J>U
end Hello; 7R!5,Js+
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汇编语言 *3/T;x.
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x86 CPU,DOS,TASM ::FS/Y]Fg
MODEL SMALL mtz#}qD66
IDEAL PjA6Ji;Hu
STACK 100H *^%Q0mU[
I/gjenUK
DATASEG qt%D'
HW DB 'Hello, world!$' b` Hz$8
)B,|@ynu
CODESEG 1K,1X(0rL8
MOV AX, @data 91>fqe
MOV DS, AX U-/{0zB
MOV DX, OFFSET HW o]:3H8
MOV AH, 09H Ig]iT
INT 21H Jc&y9]
MOV AX, 4C00H lKZB?Kk^w\
INT 21H YW u cvw&
END 4lhw3,5
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x86 CPU,GNU/Linux,NASM t58e(dgi
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). )9l^O
;Enter this into "hello.asm" then type: !l]dR@e
;"nasm -f elf hello.asm" Wjhvxk
;"ld hello.o -o hello" )XcOl7XLN
;"./hello" W@|6nPm
+)o}c"P!
section .data ;data section declaration
`\Hf]b
msg db 'Hello World!',0AH w2_bd7Wp<
len equ $-msg ;string length >h0-;
M9zfT!-
section .text ;code section declaration >D201&*G%
global _start ;entry point (start of execution) L|bwZ,M=}?
_start: mov edx,len ;string length q[`j`8YY!R
mov ecx,msg ;string start g~(E>6Y
mov ebx,1 ;file handle: stdout 2^8%>,
mov eax,4 ;sys_write jReXyRmo({
int 80h ;kernel system call Xp0F
[>h
u#}[ZoI
mov ebx,0 ;return value x#Sqn#
mov eax,1 ;sys_exit F 8B#}%JE
int 80h ;kernel system call g1t0l%_7^
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AL>$HB$
x86 CPU,Windows,MASM32 Jgnhn>dHe
.386 q.,JVGMS
.model flat,stdcall 23~Sjr
option casemap:none Xy5e5K
;Include 文件定义 5^^XQ?"
include windows.inc 8\:NMP8W\
include user32.inc Kq i4hK
includelib user32.lib AU2i%Q!
include kernel32.inc u\eEh*<7q
includelib kernel32.lib e=O,B8)_
;数据段 */|BpakD<
.data tHzZ@72B7
szCaption db 'A MessageBox!',0 pAT7)Ch
szText db 'Hello,world!',0 M(/r%-D
;代码段 g<~Cpd
.code !.d@L6
start: 9k{PBAP
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK b0oMs=uBn
invoke ExitProcess,NULL -[-wkC8a
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RjN{%YkXe
end start ..rOsg{
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n=[/Z!
AWK Yk=PS[f
BEGIN { print "Hello, world!" } 7hsGu a
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BASIC i>(e}<i
传统版BASIC(例如GWBASIC): 6i}iAP|0
s_mS^`P7
10 PRINT "Hello, world!" yj\Nkh
20 END P-9<YN
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或在提示符输入: z*-2.}&U<
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?"Hello, world!":END <_7*67{
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rda# h^
现代版BASIC(例如Quick BASIC): I"GB<oB
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Print "Hello, world!" +llR204
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以下的语句在Quick BASIC中同样有效: Y=Kc'x[,Zj
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? "Hello,world!" &G-!qxe
.X;3,D[w
/{&tY:;m
BCPL bD?VU<)3
GET "LIBHDR" R~PA1wDZ
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LET START () BE P}4QQw
$( !4X
f~P
WRITES ("Hello, world!*N") Fx2bwut.K
$) p9x(D/YP0
x U4 +|d
lz?$f4TzA
Befunge /#)/;
"!dlrow olleH">v y2^Y/)
, jWrj?DV,2N
^_@ WHj'dodS
N'GeHByIT
W>j !Q^?
Brainfuck M
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++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< c_4[e5z
+++++++++++++++.>.+++.------.--------.>+.>. 0E3[N:s
0"pAN[=K@
!]=d-RGNe
C N$U$5;r~`
#include <stdio.h> md"!33 @
q-}Fvel u
int main(void) 3v1iy/ /
{ UdpF@Q
printf("Hello, world!\n"); SMpH._VFeE
return 0; zo4qG+>o
} &tg&5_
FG.em
F9,DrB,B{
C++ 2h5nMI]'
#include <iostream> +lHjC$
Hl{S]]z
int main() iT2B'QI=<
{ sT}.v*
std::cout << "Hello, world!" << std::endl; rustMs2p
return 0; }&wUr>=
} ^c9t'V`IWQ
CEX"D`
+JjW_Rl?=V
C++/CLI n[lJLm^(_C
int main() x-^`~p
{ P\1L7%*lU
System::Console::WriteLine("Hello, world!"); nU7>uU
} v>Q#B
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RO 4Z?tz
C# (C Sharp) e4?>-
class HelloWorldApp _( {hc+9p
{ Vf]
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public static void Main() A#EDkU,
{ t/VD31
System.Console.WriteLine("Hello, world!"); onz?_SAW
} snobT Q
} `4=^cyt+
n*[XR`r}
;:\<gVi:
COBOL
<G|(|E1
IDENTIFICATION DIVISION. fF7bBE)L/|
PROGRAM-ID. HELLO-WORLD. `d5%.N
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ENVIRONMENT DIVISION. )u[emv$
f4 P8Oz
DATA DIVISION. $w2u3-
$u]jy0X<Y;
PROCEDURE DIVISION. vq(0OPj8r[
DISPLAY "Hello, world!". aX)I3^ar
STOP RUN. ,JAx
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M2OIBH4!
_>(^tCo
Common Lisp <>y;.@}Q
(format t "Hello world!~%") itBwCIj G
-GhP9; d
(^TF%(H
DOS批处理 5:Z0Pt
@echo off g
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echo "Hello, world!" 1OCeN%4]Qk
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lr>oYS0
Eiffel 5m\<U`
class HELLO_WORLD l;R%= P?'F
M+||rct
creation q&s3wDl/
make a,
k'Vk{
feature oHd FMD@
make is \2N!:%k
local 2@'oe7E
io:BASIC_IO v$7QIl_/7
do Mm.<r-b
!!io ORe(]I`Z
io.put_string("%N Hello, world!") /uPcXq:L~
end -- make _x%7@.TB
end -- class HELLO_WORLD y{ibO}s
uwzvb gup?
[$0p+1
Erlang ~zCEpU|@N
-module(hello). -JMdE_h
-export([hello_world/0]). {.?ZHy\Rk
*H"B _3<n
hello_world() -> io:fwrite("Hello, World!\n"). -]/I73!b
Ktb\ b w
>`Y.+4mE
Forth JjPKR?[>
." Hello, world!" CR PF)jdcX
K1mPr^3rC
*"?l ]d
Fortran *6sl
WRITE(*,10) K2M~-S3
10 FORMAT('Hello, World!') qLn/2
STOP +T|JK7
END [ey:e6,T9
|'P]GK
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HTML 4r>6G/b8*
<HTML> 8ja$g,
<HEAD> 7X0Lq}G@
<TITLE> Hello World! </TITLE> k;K)xb[w |
</HEAD> U
9_9l7&r
<BODY> (D#B_`;-
<p>Hello World!</p> Oft-w)cYz,
</BODY> ii[F]sR\
</HTML> Y2a5bc P
h1B? 8pD
qaiNz S@q
HQ9+ E27vR 7
H |L%Z,:yO
aoMqSwF=
/Y9>8XSc
INTERCAL S^-DK~Xt4
PLEASE DO ,1 <- #13 0Vlk;fIh
DO ,1 SUB #1 <- #238 aC$B2
DO ,1 SUB #2 <- #112 aZ2!i
DO ,1 SUB #3 <- #112 RN$1bxY
DO ,1 SUB #4 <- #0 zMj#KA1
DO ,1 SUB #5 <- #64 ]$ L|
DO ,1 SUB #6 <- #238 f!\lg
DO ,1 SUB #7 <- #26 pWy=W&0~qf
DO ,1 SUB #8 <- #248 WKC.$[T=
DO ,1 SUB #9 <- #168 /(u}KMR!f
DO ,1 SUB #10 <- #24 /qMG=Z
DO ,1 SUB #11 <- #16 "@%7 -nu
DO ,1 SUB #12 <- #158 0H6(EzN
DO ,1 SUB #13 <- #52 LxYrl-
PLEASE READ OUT ,1 xQ}pu2@d
PLEASE GIVE UP `z{%(_+[
)U~=Pf"
'qZW,],5
Java U &C!}
public class Hello VPO
N-{=`
{ C"6?bg5N
public static void main(String[] args) 'Q|M'5'
{ QqFR\6
System.out.println("Hello, world!"); _wTOmz%|R
} sPr~=,F
} m_.>C
oC<.=2]
*!q1Kr6r
JSP GGNvu)"
<% Bzkoo J
out.print("Hello, world!"); 8K.R=
%> aoTM
r"C
SQ44
MIXAL ^Y=\#-Dd
TERM EQU 19 the MIX console device number TT2d81I3m
ORIG 1000 start address LCZ\4g05
START OUT MSG(TERM) output data at address MSG &|Bc7+/P
HLT halt execution A#Iyb){Y
MSG ALF "MIXAL" [BWNRC1
ALF " HELL" -wp|RD,}(
ALF "O WOR" Cbg!:Cws
ALF "LD " FKIw!m ~
END START end of the program f-bVKHt
h}*/Ge]aM
/j4P9y^]=
Nuva 5"CZh.J
<..直接输出..> q)Lu_6 mg
Hello, world! 3N dq>
8cU}I4|
<..或者..> k,85Y$`'
GC?ON0g5s
<. rm5bkJcg~
// 不带换行 ~ DBcIy?
? "Hello, world!" \SN&G`o<
ZjgsR|i
// 或者 s"0Y3x3
!F1M(zFD
// 带换行 R@/"B8H
?? 'Hello, world!' 5 xppKt
.> 6N",-c
I/a/)No
8D>n1b(H
OCaml j"}*T
let main () = |bq$xp
print_endline "Hello world!";; v9:9E|,U+
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2[Z,J%:0
Pascal '9S8}q
program Hello; !
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begin x,rlrxI
writeln('Hello, world!'); >64P6P;S
end. Q~OxH'>>(
qCljo5Tq'
>d,jKlh^.%
Perl v16JgycM
#!/usr/local/bin/perl n2]/v{E;/
print "Hello, world!\n"; 3
^>l\,
<QA6/Ef7
Jl5c
[F
PHP xCg52zkH#
<?php ox(j^x]NC
print("Hello, world!"); <}E!w_yi
?> pnjXf.g"O
4(|cG7>9-
/DK"QV!]s
Pike +?:7O=Y
#!/usr/local/bin/pike Jll-`b 1
int main() e4!:c^?
{ X' d9[).
write("Hello, world!\n"); $ {O#
return 0; %+j8["VEC
} L W[9
:[O
8
()5[x.xK@
PL/I ,quoRan
Test: procedure options(main); L;*ljZ^c
declare My_String char(20) varying initialize('Hello, world!'); |.F$G<
put skip list(My_String);
{zn!vJX
end Test; TM_/`a2}
JBXrFC;
v3aYc:C
Prolog }q $5ig
goal y0#u9t"Z;
write("hello,world!"). =T(6#"
N>XS=2tzN
l|/ep:x8
Python P!H_1RwXKC
#!/usr/local/bin/python cd(GvX'
print "Hello, world!" |$vX<. S
>Db;yC&
Ov-icDMm
REXX $6mX
say "Hello, world!" cki81bOT
>4#)r8;dx
te3}d'9&|
Ruby y9x w
9l'
#!/usr/bin/ruby (-ufBYO6
print "Hello, world!\n" F<qz[,]|-j
iPd[l{85Z
*h'=3w:G
Scheme 0w)^)
(display "Hello, world!") -o!$tI&
(newline) |N%fMPKa
F
P* lQRA
hWD;jR
sed (需要至少一行输入) )(ImLbM)
sed -ne '1s/.*/Hello, world!/p' Hea;?4Vg
g/P+ZXJ
-(
Smalltalk bYEy<7)x
Transcript show: 'Hello, world!' }T&iewk
P*FMwrJj>r
IF44F3(V4
SNOBOL syaPpM
Q-
OUTPUT = "Hello, world!" nm6h%}xND<
END SKkUU^\#R`
U)E(`{p]
>8k_n
SQL GBRa.;Kk
create table MESSAGE (TEXT char(15)); /atW8 `&
insert into MESSAGE (TEXT) values ('Hello, world!'); R)QC)U
select TEXT from MESSAGE; V:VO[e<e
drop table MESSAGE; ~GL]wF2#
] lrWgm
n[G &ksQI
Tcl 2/"u5
#!/usr/local/bin/tcl IIn"=g=9
puts "Hello, world!" G/7cK\^u
IOqwCD[
uI1q>[
TScript XCU7xi$d
? "Hello, world!" 2zs73:z
1Cgso`
v^d]~!h
Turing CF?1R
put "Hello, world!" (O.d>
v7iuL6jl
&e#~<Wm82
UNIX-style shell Jl#%uU/sx
程序中的/bin/sh可改为您使用的shell vb<oi&X
i*/Yz*<
#!/bin/sh *X+79vG:
echo 'Hello, world!' P:k>aHnW
(Iaf?J5{
Qo;zHZ'
GUI 1*9U1\z
r76J
N
Delphi +yk24
`>
program HelloWorld; =;2%a(
uses j g8fU
Dialogs; __|+w<]
begin ?0v-qj+
ShowMessage('Hello, World!'); ms*(9l.hOK
end. !4XOy B
Mxyb5h
G9xmmc
Nuva `(_s|-$
<. mlJ!:WG
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) DU5c=rxW
.> ST:A<Da"
yku5SEJ\
"alyfyBu'M
Visual Basic 9Iwe2lu
MsgBox "Hello, world!" BK)$'AqO
'或者 x:),P-~w
Print "Hello, world!" b:lP%|7
nbm&wa[
3I)VHMC
Visual FoxPro S ?{#r
? "Hello, world!" 1*'HL#
jQ2Ot <
YG@t5j#b
X11 $8UUzk
用一个程序 Cs9.&Y
/?@3.3sl_
xmessage 'Hello, world!' O_wEcJPE
LhOa{1SY
用C++和gtkmm 2 CG0
M
=G7m)!
#include <iostream> piPR=B+
#include <gtkmm/main.h> _F>CBG
#include <gtkmm/button.h> ';3{T:I
#include <gtkmm/window.h> B*
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using namespace std; , w{e
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class HelloWorld : public Gtk::Window yXSFjcoB
{ h"X;3b^ m
public: c0,0`+2~
HelloWorld(); ?[@J8
virtual ~HelloWorld(); vHyC; 4'
protected: "i y
Gtk::Button m_button; /]K^
rw[
virtual void on_button_clicked(); 9s\A\$("l
}; ?}wk.gt>
U'H$`$Ov
HelloWorld::HelloWorld() : m_button("Hello, world!") OLyf8&AU@
{
}Yb[
set_border_width(10); B<5R
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); A)bWcB}U
add(m_button); |iak z|])
m_button.show(); ]<ldWL
} zr-*$1eu
q]T1dz?
HelloWorld::~HelloWorld() {} Gr*r=s
CAfGH!l!
void HelloWorld::on_button_clicked() E{XH?_xo
{ wxKX{Bs
cout << "Hello, world!" << endl; ck:T,F{}
} uxXBEq;
smlpD3?va
int main (int argc, char *argv[]) J l(&!?j
{ |cK*~
Gtk::Main kit(argc, argv); 4w*Skl=F}
HelloWorld helloworld; gwLf '
Gtk::Main::run(helloworld); 2L3)#22m*
} ^yW L,$
w mn+
N-G1h?e4
Java <CS(c|7
import java.awt.*; Luq#9(P
import java.awt.event.*; qraSRK5
abuh`H#
public class HelloFrame extends Frame H3z:ZTI
{ ,vr? 2k
HelloFrame(String title) g2BHHL;`
{ @@R7p
super(title); $mu^G t
} .!Oo|m`V@
public void paint(Graphics g) MV5 _L3M
{ V[RF</2T
super.paint(g); J1,9kCO
java.awt.Insets ins = this.getInsets(); ZT'`hK_up
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); )B
T
} >tYm+coS
public static void main(String args []) b LB:MW\%
{ X.OD`.!>
HelloFrame fr = new HelloFrame("Hello"); 8NxM4$nQX
v|gw9
fr.addWindowListener( RmI]1S_=
new WindowAdapter() XeW<B0~
{ UvJ}b
public void windowClosing(WindowEvent e) gT3_RUF
{ ~Y `ldL
System.exit( 0 ); 8hu<E4]L
} dz:E?
}
-?H#LUk
); xR-%L
fr.setResizable(true); cA2V2S)
fr.setSize(500, 100); - \5v^l
fr.setVisible(true); Z
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} ?h3Y)5x T
} 9{'N{
aAZZ8V
}{,^@xdyW
Java Applet FTX=Wyr
Java Applet用于HTML文件。 &4 {KV.
:nh_k4S@v
HTML代码: ?}Z1bH
q]\:P.x!>
<HTML> fX(3H1$"
<HEAD> {'NZ.
<TITLE>Hello World</TITLE> ls_'')yp
</HEAD> "An,Q82oHf
<BODY> z#zI1Am(O
NvD7Krqwa
HelloWorld Program says: Qk0R a_
V39g,=`b%
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> ?[VM6- &
</APPLET> &c` nR<
&SIq2>Q A
</BODY> tGD6AI1"I
</HTML> i{Uc6R6
&Q%zl9g(g
Java代码: qt"G[9;
k|v3.< -
import java.applet.*; LSm$dK
import java.awt.*; hjU::m,WX
}v@dL3{f
public class HelloWorld extends Applet T] R|qlZ
{ 5/q}`T9i%7
public void paint(Graphics g) sz5MH!/PJ
{ fWCo;4<5?
g.drawString("Hello, world!", 100, 50); x5|I
} %G3h?3
} FGPB:
m- %E-nr
wa(8Hl|Y
java script '@cANGg7[
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。 kj|6iG
8|b3j^u
<script language="java script"> 2;[D;Y}
function helloWorld() Kc!}`Pm
{ 4ae`pAu
alert("Hello World"); ?# Mr
} 8/DS:uM
</script> QsGiclU
3RiWZN
<a href="java script:this.location()" H;D>|q
onclick="java script:helloWorld();">Hello World Example</a> Qwz}B
v&Ii^?CvO
f&