“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。 133lIX+(k
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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》。 `a:@[0r0U
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以下是用不同语言写成的Hello World程序的几个例子: x{ ~-YzWho
Ada 5gI@~h S
with Ada.Text_Io; use Ada.Text_Io; xpFu$2T6P.
procedure Hello is e }/c`7M
begin UuT>qWxQ8
Put_Line ("Hello, world!");
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end Hello; ({![
X =S;8=N
ci5ERv`
汇编语言 2DTH|Yv
yt C{,g>
x86 CPU,DOS,TASM ^]wm Y
MODEL SMALL ]G&?e9OA
IDEAL _@sqCf%|
STACK 100H OjMDxG
w
7r"!&P*,
DATASEG 9|jIrS%/~
HW DB 'Hello, world!$' _w+sx5
rf;R"Uc
CODESEG VjYfnvE
MOV AX, @data
30FYq?
MOV DS, AX RNoS7[&
MOV DX, OFFSET HW ]S,I}NP
MOV AH, 09H *v:+AE
INT 21H }?*:uf
MOV AX, 4C00H ]ZO^@sH
INT 21H !i_5XcH
END lhQ*;dMj%"
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lqqY5l6j
x86 CPU,GNU/Linux,NASM ReKnvF~
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 8XX,(k_b
;Enter this into "hello.asm" then type: K"Nq_Ddwd
;"nasm -f elf hello.asm" :Iwe> ;}
;"ld hello.o -o hello" aU4'_%Y@
;"./hello" nImRU.;P
PKdM-R'Z
section .data ;data section declaration o [ar.+[
msg db 'Hello World!',0AH \C}tK,79
len equ $-msg ;string length :+]6SC0ql
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section .text ;code section declaration u9mMkzgSkP
global _start ;entry point (start of execution) `ZV;Le'
_start: mov edx,len ;string length d^]wqn pf
mov ecx,msg ;string start Ow//#:
mov ebx,1 ;file handle: stdout X@x:
F|/P
mov eax,4 ;sys_write pl fz)x3
int 80h ;kernel system call X~GZI*P
M/d!&Bk
mov ebx,0 ;return value 9]NsWd^^
mov eax,1 ;sys_exit
.j7|;Ag
int 80h ;kernel system call LfOGq%&
x"AYt:ewuc
v .r$]O
x86 CPU,Windows,MASM32 @H&Aj..
.386 b^Rg_,s
.model flat,stdcall !6<2JNf
option casemap:none ^N Et{]x
;Include 文件定义 ]o,) #/' $
include windows.inc aM? 7'8/
include user32.inc '-w G
includelib user32.lib J5J3%6I
include kernel32.inc B+zq!+ HJ
includelib kernel32.lib * +A!12s@
;数据段 &??(EA3
.data 5Odi\SJ&
szCaption db 'A MessageBox!',0 ODv)-J
szText db 'Hello,world!',0 1Lj\"+.
;代码段 IeN!nK-
.code ( Y/
DMQ
start: ,iSs2&$m
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 'kW`62AX
invoke ExitProcess,NULL 7
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;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> F;q I^{m2
end start .^JID~<?#
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'ARQ7 Q[`
AWK rK=[&k
BEGIN { print "Hello, world!" } '^Sa|WXq
i>)Whr'e8
;=h^"et
BASIC HLk}E*.mC
传统版BASIC(例如GWBASIC): & rw|fF|]
C:4h
10 PRINT "Hello, world!" Zls4@/\Q
20 END ?r'b
Z~
:
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或在提示符输入: lZn <v'y
qY14LdC}~
?"Hello, world!":END {R1jysGtD
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现代版BASIC(例如Quick BASIC): m"U\;Mw?
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Print "Hello, world!" Ap}:^k5{
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以下的语句在Quick BASIC中同样有效: 1q\U
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? "Hello,world!" 00b
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2d$hgR#v
BCPL
ZfvFs
GET "LIBHDR" AFMAgf{bD
aYPzN<"%
LET START () BE EWqKd/
$( hrcR"OZ~X
WRITES ("Hello, world!*N") i$og
v2J
$) .4KXe"~E
~=0zZTG
4|++0=#D$
Befunge [%QJ6
"!dlrow olleH">v ;! CQFJ=
, zyCl`r[}
^_@ :_Ng`b/
7sLs+|<"
-u{k
Brainfuck Q'Q+mt8u5
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< |n6nRE wW
+++++++++++++++.>.+++.------.--------.>+.>. Ns1u0$fg
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C AeUwih.
4
#include <stdio.h> `?Y/:4
O 6A:0yM4
int main(void) 2!" N9Adt
{ '>`bp25>
printf("Hello, world!\n"); AV&W&$
return 0; KtV_DjH:
} ]Ff&zBJ
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F*I{?NRN1
C++ .`,YUr$.
#include <iostream> %? RX}37K
Q*KEODR8\
int main() Sm,%>
{ ,GR(y^S
std::cout << "Hello, world!" << std::endl; C= hE@
return 0; M:C*?;K:
} @p`#y
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C++/CLI &1B)mj
int main() ]@WJ&e/'@
{ :5"|iRP'
System::Console::WriteLine("Hello, world!"); 5RlJybN"o
} I{1w8m4O6
g~Q#U;]
pu `|HaQaE
C# (C Sharp) O[`n{Vl/
class HelloWorldApp y f+/Kj<
a
{ ]Fjz+CGg
public static void Main() 9"<)DS
{ <'B`b
System.Console.WriteLine("Hello, world!"); C{Npipd}v
} tk,
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} 0Y"==g+>f
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RHB>svT^K>
COBOL L2K4nTA
IDENTIFICATION DIVISION. 0n3O;=[aV
PROGRAM-ID. HELLO-WORLD. b5H[~8mf
i>e7 5`9
ENVIRONMENT DIVISION. |dXS+R1
.GS|H d
DATA DIVISION. Vw)\#6FL
nGyY`wt&Rg
PROCEDURE DIVISION. 44_n5vp,T
DISPLAY "Hello, world!". M)3h 4yQ
STOP RUN. KQr=;O\T
5(U.<
\6@}HFH
Common Lisp `CHgTkv
(format t "Hello world!~%") GbZA3.J]yl
lYy0
]bS\*q0Zf(
DOS批处理 !^\|r<2M
@echo off 0>.'w\,87B
echo "Hello, world!" )EcF[aO
rVf`wJ6b
$1UN?(r
Eiffel w1s#8:
class HELLO_WORLD ?|8H$1
:Eob"WH
creation ew"[]eZ:ut
make u`
feature &O!d!Pf
make is c"0CHrd
local sY1*WolA
io:BASIC_IO ,~G[\2~p
do J/
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!!io Uvz9x"0[u
io.put_string("%N Hello, world!") LFh(.
}
end -- make g\6(ezUF*
end -- class HELLO_WORLD E>7%/TIl
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Erlang Y4b"(ZhM_
-module(hello). &f!!UZMt)
-export([hello_world/0]). ~[,E
i k
~%sDQt\S
hello_world() -> io:fwrite("Hello, World!\n"). OGae]O<
^(6.P)$
T>LtN
Forth Q0M8}
." Hello, world!" CR -|ee=BV
`d8$OC
tU?lfU[7
Fortran ]Q)TqwYF
WRITE(*,10) 3EzI~Zsx
10 FORMAT('Hello, World!')
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STOP '3<YZWS
END i44KTC"sB
_s=[z$EN&
iF`E>%#
HTML 'RG`DzuF
<HTML> 0eb`9yM
<HEAD> >0~y"~M
<TITLE> Hello World! </TITLE> u#}zNz#C5
</HEAD> 2>s:wABb /
<BODY> Ou,B3kuQ+
<p>Hello World!</p> ."=Bx2
</BODY> BfhOe~+i
</HTML> 1FY^_dvH
F v(zql
zzPgLE55
HQ9+ N-vr_4{g
H 6idYz"P %
NEK;'"~
WlG/7$
INTERCAL Zb}=?fcL;@
PLEASE DO ,1 <- #13 n1!u
aUC
DO ,1 SUB #1 <- #238 Yz{UP)TC
DO ,1 SUB #2 <- #112 R=PjLH&)
DO ,1 SUB #3 <- #112 y+X%qTB
DO ,1 SUB #4 <- #0 AMtFOXx%I
DO ,1 SUB #5 <- #64 33
N5> }
DO ,1 SUB #6 <- #238 {L.0jAwB
DO ,1 SUB #7 <- #26 HW{+THNj
DO ,1 SUB #8 <- #248 mT\]
DO ,1 SUB #9 <- #168 =(@J+Ou
DO ,1 SUB #10 <- #24 GKm)wOb(*S
DO ,1 SUB #11 <- #16 *a\1*Jk
DO ,1 SUB #12 <- #158 rsiG]o=8
DO ,1 SUB #13 <- #52 V_Y SYG9f
PLEASE READ OUT ,1 !QC->
PLEASE GIVE UP ~sk 4v:-
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03{e[#6
Java o'Po<I
public class Hello 4UG7{[!+
{ o3%+FWrVTS
public static void main(String[] args) H%sbf&
gi
{ i)
:Q{[D
System.out.println("Hello, world!"); +}*]9nG
} fq\E$'o$
} $g#%
Soq
'B?>
{t9'8R3
JSP @'~v~3
$S
<% 5qUyOkI
out.print("Hello, world!"); c 8E&
%> vE&
+vZ-o{}.jO
-_A0<A .
MIXAL LD#]"k
TERM EQU 19 the MIX console device number *Q5/d9B8TN
ORIG 1000 start address l"O=x t`m{
START OUT MSG(TERM) output data at address MSG ~hz]x^:
HLT halt execution z)Bc91A
MSG ALF "MIXAL" =[vT=sHz7
ALF " HELL" Q- j+#NGc
ALF "O WOR" lwjg57
ALF "LD " *`mwm:4
END START end of the program R%54!f0
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oGXT,38*
Nuva 3X%>xUI
<..直接输出..> 9<,\+}^{
Hello, world! %0= |WnF-
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<..或者..> ;pS
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<. # l}Y1^PDd
// 不带换行 265df
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? "Hello, world!" (w)Qt/P^4
L?<V KT
// 或者 ;R|5sCb/m
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// 带换行 * UBU?
?? 'Hello, world!' *7DQ#bD
.> 0FHN
.gx*gX1<
1;g>?18@
OCaml XeJx/'9o{
let main () = "J7=3$CA
print_endline "Hello world!";; l.Qj?G
YzsHec
@
L?7`VoE
Pascal 7$}lkL
program Hello; $)z(4Ev
begin 53@*GXzE
writeln('Hello, world!'); |*jnJWH4:
end. q9F(8-J
3S
+.]v>
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Perl 7n}J}8Y*U2
#!/usr/local/bin/perl 2NqlE
print "Hello, world!\n"; oTT/;~ I
S'vrO}yU
->$Do$
PHP gz
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<?php 7s1FJm=Y/
print("Hello, world!"); @My-O@C>
?> op/|&H'
`epO/Uu\~u
~ex1,J*}t
Pike E0Ig/
j
#!/usr/local/bin/pike {3@/@jO?
int main() ?0Z?Z3)%w4
{ ST] h NM
write("Hello, world!\n"); &mp=j GR
return 0; :anUr<
} 8v5cQ5Lc
##EMJi
vRYfB{~
PL/I *Xn{{
Test: procedure options(main); ?%{v1(
declare My_String char(20) varying initialize('Hello, world!'); j[
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put skip list(My_String); pa4zSl
end Test; Ihw^g<X
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t1wNOoRa
Prolog S:+SZq
goal }p]8'($
write("hello,world!"). DO8@/W(
`
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OpW4@le_r
Python OZB(4{vnyC
#!/usr/local/bin/python )zf&`T
print "Hello, world!" h/mmV:v
[;
( Y'q%$
REXX `XE8[XY
say "Hello, world!" Xg_M{t
f{t5r
z ~#
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Ruby 9l+'V0?`
#!/usr/bin/ruby 4'RyD<K\
print "Hello, world!\n" GNgPf"}K
&k+jVymH
BRi\&&<4
Scheme 0 P3^#j
(display "Hello, world!") 6X$]d^)h{
(newline) Oc}4`?oy<O
d
*!) wt
j;WZ[g#t
sed (需要至少一行输入) /2Y t\=S=
sed -ne '1s/.*/Hello, world!/p' dmgoVF_qR
Cd?aC
>WVos 4
Smalltalk < HlS0J9
Transcript show: 'Hello, world!' /xUTm=w7u
{U=Mfo?AH
^7G@CBic"
SNOBOL PJ5~,4H-4
OUTPUT = "Hello, world!" vR[XbsNM
END =aX;-
z/dpnGX
(P%{Tab
SQL lyc
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9
create table MESSAGE (TEXT char(15)); [K1RP.
insert into MESSAGE (TEXT) values ('Hello, world!'); Oi+9kk
e
select TEXT from MESSAGE; dUegHBw_`R
drop table MESSAGE; $ @QF<?i~
ue"?n2
6q-X$
Tcl o
EXN$SIs
#!/usr/local/bin/tcl 4! ]28[2B6
puts "Hello, world!" !VBl/ aU@
:08b&myx
o/I'Qi$v-
TScript 2uujA*
^
? "Hello, world!" [Q9#44@{S;
Cak`}J 2
U.g7' `Z<
Turing _Vul9=
put "Hello, world!" C^oj/}^
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BC.~wNz6
UNIX-style shell R~TzZ(Ah]
程序中的/bin/sh可改为您使用的shell )(V|d$n
.dM4B'OA?
#!/bin/sh rWsUWA T*
echo 'Hello, world!' v/gxQy+l
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wl2P^Pj
GUI di$\\ Ah
HG
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Delphi S<fSoU+RJ
program HelloWorld; 36iDiT_
uses 3msb"|DG
Dialogs; hq+j8w}<-
begin Esx"nex
ShowMessage('Hello, World!'); ^k{b8-)W<
end. r Z)?uqa
\zOo[/-<
~gZ"8frl
Nuva K{DsGf,
<. Cb:}AQ =
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 2aj9:S
.> .Y`;{)
Ix~_.&
Lh`B5
Visual Basic \MhSIlM#
MsgBox "Hello, world!" ,,
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'或者 F%|F-6
Print "Hello, world!" PiQsVk
my|]:(_0d
DD$YMM
Visual FoxPro F{,<6/ayRz
? "Hello, world!" E^'f'\m
e"g=A=S
B L^?1x
X11 ZDn5d%
用一个程序 ^/c v8M=
aUZh_<@
xmessage 'Hello, world!' Sr Vo0$5)
=*2_B~`
用C++和gtkmm 2 *z852@
^W8kt
#include <iostream> zH)M,+P
#include <gtkmm/main.h> vU(uu:U9
#include <gtkmm/button.h> 5ub|r0&M
#include <gtkmm/window.h> o,(]w kF
using namespace std; cl,\N\
+q<G%PwbV
class HelloWorld : public Gtk::Window E]@$,)nC
{ WZh%iuI{C
public: D_s0)|j$cy
HelloWorld(); L[s7q0 F`l
virtual ~HelloWorld(); z:gp\
protected: "2m (*+
Gtk::Button m_button; 'aV/\a:*
virtual void on_button_clicked(); NQ&\t[R[
}; r.z=
GycW3tc]_&
HelloWorld::HelloWorld() : m_button("Hello, world!") ZsnFuk#W
{ ^mp#7OL
set_border_width(10); 9I1D'7wI^^
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 3aX/)v.:4
add(m_button); 2wX4e0cOI4
m_button.show(); pHNo1-k\
} .Tm m
t@"i/@8x$
HelloWorld::~HelloWorld() {} arWP]%E0W
$:l>g)c
void HelloWorld::on_button_clicked() A.YXK%A%
{ E&z`BPd
cout << "Hello, world!" << endl; Vf*Z }'
} @y ImR+^.7
S&JsDPzSd
int main (int argc, char *argv[]) ! )x2
{ W[VbFsI&b
Gtk::Main kit(argc, argv); }w_r(g?\
HelloWorld helloworld; U\'HB.P\
Gtk::Main::run(helloworld); <@448,9&
} _/c1b>kcso
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; <NK
Java '((pW
import java.awt.*; B=d
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import java.awt.event.*; mxPzB#t4
KHO@"+
public class HelloFrame extends Frame q}xYme4
{ R`HC
EX)
HelloFrame(String title) ;n\$'"K&;
{ ;07>ZH%
super(title); T1~G{@"
} m8ApiGG
public void paint(Graphics g) 1fOH$33
{ -s6k't
super.paint(g); 7B@1[
java.awt.Insets ins = this.getInsets(); 3xX^pjk
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); :5W8S6[o
} V zTHW5B
public static void main(String args []) ! 'qY
{ Tb!Fv W
HelloFrame fr = new HelloFrame("Hello"); T1*%]6&V|
iwVsq_[]L
fr.addWindowListener( ;Pw\p^wz
new WindowAdapter() $p;<1+!
{ :3N&&]
public void windowClosing(WindowEvent e) p!Xn iY
{ QWQJSz5
System.exit( 0 ); umo<9Y
} 7cQFH@SC
} [C^&iLX/F*
); %
|^V)
fr.setResizable(true); pf8M0,AY
fr.setSize(500, 100); (ebC80M
fr.setVisible(true); `EdZ
} q).["fSV
} FGey%:p9$
<y2HzBC
+5i~}Q!
Java Applet q@=3`yQ
Java Applet用于HTML文件。 e0:[,aF`
mDdL7I
HTML代码: LX8A@Yct
259R5X<V
<HTML> +ktubJ@Qgj
<HEAD> IzI2w6a
<TITLE>Hello World</TITLE> 4Q17vCC*n
</HEAD> Y
a/+|mv
<BODY> dMw}4c3E
M/a40uK
HelloWorld Program says: 6* 6 |R93
%M5{-pJ|C
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> kxH`
c
</APPLET> ia#8 ^z
XVfw0-O
</BODY> l.Q.G<ol
</HTML> 8= "01
^JMO POm
Java代码: 7R7e3p,K
6>NK2} `
import java.applet.*; ){I!orQ
import java.awt.*; q@&6&cd
-T=sY/O
public class HelloWorld extends Applet {2.zzev'
{ &V(;zy4(R
public void paint(Graphics g) ?1.WF}X'
{ 34F;mr"yp
g.drawString("Hello, world!", 100, 50); j"r7M|Z+V
} !nDiAjj
} !O 0{ .k
N;` jz(r
,(3oAj\
java script S;^'Ek"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。 -!QVM\t
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<script language="java script"> po@Agyg5
function helloWorld() AL{iQxQ6
{ R~"&E#C
alert("Hello World"); ]4onY>
} v\2-%
</script> u?rs6A[h#
pEp$J;
<a href="java script:this.location()" "F:V$,mJ
onclick="java script:helloWorld();">Hello World Example</a> 1| dXbyUd
N c(f+8
\7PC2IsT3
PostScript -&E