“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。 , 0hk)Vvr3
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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》。 z_i(o
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以下是用不同语言写成的Hello World程序的几个例子: h+\+9^l6|
Ada ~nP~6Q'wSH
with Ada.Text_Io; use Ada.Text_Io; Jn|sS(Q}
procedure Hello is l+ ,p=
begin )a7nr<)aU
Put_Line ("Hello, world!"); z`Jcpt
end Hello; Kl\g{>{Uz
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)7aUDsu>4
汇编语言 9V'ok.B.x
Ri
x86 CPU,DOS,TASM #oYPe:8|m
MODEL SMALL Hto RN^9
IDEAL _ww>u""B~
STACK 100H Za110oF
~M c'~:{O
DATASEG >P<8E2}*
HW DB 'Hello, world!$' 04j]W]8#
=8o$
CODESEG 5n0B`A
MOV AX, @data
x>]14bLz
MOV DS, AX icrcP ~$A
MOV DX, OFFSET HW 3 P=I)q
MOV AH, 09H u?Uu>9@Z
INT 21H JI3x^[(Z
MOV AX, 4C00H ro n-v"!
INT 21H iJ&jg`"=F
END P
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Nc da~h
Q
;_K3/:
x86 CPU,GNU/Linux,NASM Xf YbWR
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). )K}-z+$)k
;Enter this into "hello.asm" then type: JhU"akoK
;"nasm -f elf hello.asm" ufF>I
;"ld hello.o -o hello" i8h^~d2"
;"./hello" uGc0Lv4i/
;],Js1m
section .data ;data section declaration ke)}JU^"
msg db 'Hello World!',0AH 6(1S_b=a
len equ $-msg ;string length 0X<U.Sxn
d}w}VL8l
section .text ;code section declaration ymW? <\AD,
global _start ;entry point (start of execution) 5(\H:g\z
_start: mov edx,len ;string length |Wg!>g!
mov ecx,msg ;string start n1Wo<$#
mov ebx,1 ;file handle: stdout v[2N-
mov eax,4 ;sys_write '8"nXuL-
int 80h ;kernel system call j[RY
h(/& ;\Cr
mov ebx,0 ;return value FKH_o
mov eax,1 ;sys_exit u~~H'*EM
int 80h ;kernel system call %MM)5MsB
`9Rj;^NJ
9_b_O T
x86 CPU,Windows,MASM32 iAr]Ed"9|
.386 3
,f3^A
.model flat,stdcall xxQgX~'x
option casemap:none 1xD?cA\vu
;Include 文件定义
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include windows.inc m S4N%Q
include user32.inc 'Ul^V
includelib user32.lib lD#S:HX
include kernel32.inc xE5VXYU
includelib kernel32.lib 3+/^
;数据段 ]@6L,+W"
.data RI3GAd
szCaption db 'A MessageBox!',0 JKF/z@Vbe\
szText db 'Hello,world!',0 j0~dJ#
;代码段 )tv~N7
.code [y&uc
start: vNQ|tmn
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK .O&[9`"'
invoke ExitProcess,NULL mo D)^':.
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> dAr=X4LE
end start {
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.Q!p Q"5
*AG01# ZF
AWK [85b+SKW
BEGIN { print "Hello, world!" } emMk*l,
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Vz]yJ:
BASIC (XNd]G
传统版BASIC(例如GWBASIC): (5l'?7
Rr0]~2R
10 PRINT "Hello, world!" O&
1z-
20 END 8wLGmv^
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或在提示符输入: hiEosI
C
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?"Hello, world!":END ^8=e8O
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现代版BASIC(例如Quick BASIC): 2t;3_C
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Print "Hello, world!" ~^J9v+
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以下的语句在Quick BASIC中同样有效: 2<E@f0BVAy
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? "Hello,world!" Rxq4Diq5k
gbu*6&j9
)S9}uOG#
BCPL `4,]Mr1b
GET "LIBHDR" mYFc53B
?!u9=??
LET START () BE G6bvV*TRi
$( s{:Thgv,9
WRITES ("Hello, world!*N") Gce[RB:
$) qGi\*sc>x
d~KTUgH'<
e8&7W3 m
Befunge bQ-n<Lx
"!dlrow olleH">v Flaqgi/j
, \rY\wa
^_@ e>Dux
7[1VFc#tf
QN;GMX5&
Brainfuck ;;N#'.xD
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< jfYM*%
+++++++++++++++.>.+++.------.--------.>+.>. _^D -nk?
rX22%~1
y]g5S-G
C [W99}bi$
#include <stdio.h> \j4!dOGZ
d*$x|B|V
int main(void) TVVu_ib
{ D7Y?$=0ycb
printf("Hello, world!\n"); k- exqM2x=
return 0; c_ u7O
\
} (ZP e{;L.
tm.&k6%
p.5 *`, )
C++ 1
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#include <iostream> %reW/;)l{
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int main() | Pqs)Mb]
{ ypNeTR$4
std::cout << "Hello, world!" << std::endl; Li+|%a
return 0; On}b|ev
} |M EJ)LE7
@h\i<sh!^
|!J_3*6$>*
C++/CLI y!x-R!3
int main() MEOfVh
{ E O "
System::Console::WriteLine("Hello, world!"); M"foP@
} Pr,C)uch
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88}0 4
C# (C Sharp) b/4gs62{k
class HelloWorldApp /U>8vV+C
{ t&-c?&FO\;
public static void Main() fO837
{ D=)qd@,K
System.Console.WriteLine("Hello, world!"); .UU)
} _I%mY!x\`
} OkphbAX
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.:/X~{
COBOL HS|x
IDENTIFICATION DIVISION. :I^4ILQCD
PROGRAM-ID. HELLO-WORLD. v%QCp
DvTbt?i[
ENVIRONMENT DIVISION.
aqwW`\
\rCdsN 2H
DATA DIVISION. \\/
!I
=|d5V% mK
PROCEDURE DIVISION. 3]>YBbXvE
DISPLAY "Hello, world!". nZ`=Up p)
STOP RUN. 0.#%KfQ
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Xg;q\GS/<i
Common Lisp xG(:O@
(format t "Hello world!~%") II.Wa&w}
tAb3ejCo?
fVZ_*'v
DOS批处理 th=45y"C
@echo off pe+m%;nzR
echo "Hello, world!" Ds\f?\Em
aX~'
gq>
xH-} <7
Eiffel ltd'"J/r
class HELLO_WORLD l4OPzNc'
*}LQZFrnX
creation |h:3BV_
make }J=z O8OL
feature qt%/0
make is P2)g%$ME
local o#IWH;ck.
io:BASIC_IO vw` '9~
do FFH{#|_1
!!io jw]IpGTt
io.put_string("%N Hello, world!") ,7e 2M@=
end -- make ,=P0rbtK
end -- class HELLO_WORLD Q?%v b
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uMBb=
Erlang U4Pk^[,p1G
-module(hello). $P&27
-export([hello_world/0]). U9AtC.IG!
Bc#6mO-
hello_world() -> io:fwrite("Hello, World!\n"). [92bGR{
FRTvo
!v 3wl0
Forth ,-BZsZ0~
." Hello, world!" CR wJF$<f7P
9a.[>4}
td+[Na0d
Fortran 5gPAX $j H
WRITE(*,10) %$!EjyH9
10 FORMAT('Hello, World!') yNQ 9~P2
STOP ^[zF IO
END Pq(
)2B
{K2F(kz?T
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HTML < YuI}d~'
<HTML> \y/+H
<HEAD> W/;qMP1"-
<TITLE> Hello World! </TITLE> +z\O"zlj
</HEAD> g? \pH:|79
<BODY> {c$%3iQq
<p>Hello World!</p> fGLOXbsA
</BODY> L G9#D
</HTML> PiIILX{DuH
0M>%1*
2qkC{klC^M
HQ9+ 4U:+iumy2
H GG_A'eX:I
z~a]dMs"(P
mH3{<^Z6
INTERCAL >JhIRf
PLEASE DO ,1 <- #13 GgjBLe=C
DO ,1 SUB #1 <- #238 @i:_JOl
DO ,1 SUB #2 <- #112 or]s
DO ,1 SUB #3 <- #112 on1mu't_;
DO ,1 SUB #4 <- #0 m;I;{+"u
DO ,1 SUB #5 <- #64 <kor;exeJ
DO ,1 SUB #6 <- #238 +<I1@C
DO ,1 SUB #7 <- #26 O~&l.>??
DO ,1 SUB #8 <- #248 /h%MWCZWm^
DO ,1 SUB #9 <- #168 :hxZ2O?5_
DO ,1 SUB #10 <- #24 @)8C
DO ,1 SUB #11 <- #16 }~5xlg$B<<
DO ,1 SUB #12 <- #158 QfM*K.7Sl
DO ,1 SUB #13 <- #52 v]27+/a$c
PLEASE READ OUT ,1 ? 5
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PLEASE GIVE UP %25_
kLqFh<
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Java `P4qEsZE>`
public class Hello f:g<Bz=u)*
{ rQ$A|GJ L
public static void main(String[] args) Jq`fD~(7
{ Qi7^z;
System.out.println("Hello, world!"); J0|}u1?l
} {1YT a:evl
} Vd^`Hv&i
73(T+6`
;h3*MR
JSP &f qmO>M
<% :<IW'
out.print("Hello, world!"); ikRIL2Y
%> @;,O V&XYn
0+:.9*g=k
^NLKX5Q
MIXAL x{*!"a>
TERM EQU 19 the MIX console device number [l5"'{x
ORIG 1000 start address ddHIP`wb
START OUT MSG(TERM) output data at address MSG qkUr5^1
HLT halt execution JT^E`<nn
MSG ALF "MIXAL" J0p,P.G
ALF " HELL" +;[`fSi
ALF "O WOR" Pjb9FCA'
ALF "LD " P [nWmY
END START end of the program |2 wff?
NV-9C$<n2!
W{m0z+N[B
Nuva W\<#`0tUt
<..直接输出..> O x$|ZEh
Hello, world! ,n!xzoX_
#-HN[U?Gs
<..或者..> 16Gv?
I
h
3Yj}ra}
<. (Fgt #H(B
// 不带换行 Nyqm0C6m^
? "Hello, world!" X)f"`$
kdYl>M
// 或者 HIa$0g0J
Em"X5>;4
// 带换行 MthThsr7
?? 'Hello, world!' fp![Pbms.
.> 4!}fCP ty
>6DY3\
hy )RV=X
OCaml V_W=MWs&+
let main () = (kuZS4Af
print_endline "Hello world!";; n
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t+(CAP|,
\!V6` @0KC
Pascal }\*Sf[EMD
program Hello; rzBWk
begin !3&vgvr
writeln('Hello, world!'); 1aT$07G0
end. sTqB%$K}
"DN `@
`(a^=e5
Perl oV!9B -<
#!/usr/local/bin/perl 5~"=Fm<uD
print "Hello, world!\n"; ]Ojt3)fB
7z,M`14
(_08?cN
PHP |}|;OG
<?php kv4J@
print("Hello, world!"); M1M]]fT0ME
?> 5k(#kyP
I.<#t(io
A{o{o++
Pike QE}@|H9xs
#!/usr/local/bin/pike FTenXJ/c
int main() ^9RBG#ud
{ J@TM>R
write("Hello, world!\n"); 3*TS
4xX
return 0; (~GFd7
} -ur]k]R
[Bh]\I'
Ja&%J:
PL/I )AoFd>
Test: procedure options(main); T7Ac4LA
declare My_String char(20) varying initialize('Hello, world!'); 2yZ6:U~
put skip list(My_String); K]oPh:E
end Test; ^Bb_NcU
@6!JW(,]\
`+o.w#cl
Prolog =KZ4:d5
goal W Q&<QVK
write("hello,world!"). $S}x'F!4_
_YS+{0
Vq%
N
[u
Xo
Python -CrZ'k;4
#!/usr/local/bin/python &F}+U#H
print "Hello, world!" zef,*dQY
yBj)#m5!
Td
>k \<
REXX j5O*H_D
say "Hello, world!" \d+HYLAJn
bH{aI:9Fb
[s2V-'2
Ruby 4Dia#1$:J
#!/usr/bin/ruby u3:Q t2^S
print "Hello, world!\n" ,')bO*Ng
*La =7y:
S8RB0^Q7
Scheme &3f.78a
(display "Hello, world!") dmy-}.pqN
(newline) zFr} $
S\ZAcz4
z{d5Lrk
sed (需要至少一行输入) wVOL7vh
sed -ne '1s/.*/Hello, world!/p' ,]mwk~HeF
GvOAs-$
J":9
Smalltalk @;}H<&"
Transcript show: 'Hello, world!' sJ/e=1*
g8"7wf`0k
h12wk2@P/]
SNOBOL \xxVDr.
OUTPUT = "Hello, world!" tl5IwrF6;
END ~a%hRJg
RKkI/ Z0
yp^* TD/J
SQL `W n5
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create table MESSAGE (TEXT char(15)); B,833Azi
insert into MESSAGE (TEXT) values ('Hello, world!'); 9VE;I:NO3
select TEXT from MESSAGE; H@ms43v\
drop table MESSAGE; QP%Fz#u`
..!-)q'?
X^5"7phI@
Tcl ? myXG92
#!/usr/local/bin/tcl jSYg\Z5!
puts "Hello, world!" ZD%_PgiT
mN
6`8
[
f](uc(8Z
TScript ue"?S6
? "Hello, world!" *v ^"4
Sp,Q,Q4
O + &
xb
Turing !(K{*7|h
put "Hello, world!" b6vYM_ Q
`;CU[Ps?]
7$W;4!BN*
UNIX-style shell _D9@<+MS*
程序中的/bin/sh可改为您使用的shell f<:U"E.
KB R0p&MN
#!/bin/sh u^zitW!X$
echo 'Hello, world!' -==qMrKP
KR(} A"
~hslLUE
GUI BemkCj2
hO.G'q$V
Delphi i: M*L< +
program HelloWorld; @1?]$?u&
uses 1bZiPG{
Dialogs; 36x:(-GFq
begin zWs*kTtA
ShowMessage('Hello, World!'); $>ZP%~O
end. !u{"] T:
C!{AnWf
Va
Yu%
Nuva rk,1am:cg
<. b]<HhU
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) /rxltF3
.> u] U)d$|
qD;v/,?
2\63&C^
Visual Basic )d(0Y<e@
MsgBox "Hello, world!" `X<`j6zaG
'或者 =Xy`"i{`(
Print "Hello, world!" Z1$];Q\cX
XMEK5Z9Dd
::OFW@dS
Visual FoxPro 5Z6-R}uXk
? "Hello, world!" .pIR/2U\F
e(w/m(!Wny
{ w8
!K
X11 dxn0HXU
用一个程序 *$Lz2 ]
gJPDNZ*6pk
xmessage 'Hello, world!' mvTyx7h=
PM-PP8h
用C++和gtkmm 2 Q6.*"`
P,/13tZ#3
#include <iostream> } }f_
#include <gtkmm/main.h> `Ixs7{&jU
#include <gtkmm/button.h> 974eY
#include <gtkmm/window.h> S@c\|
using namespace std; |rxKCzjm
4aN+}TkH@G
class HelloWorld : public Gtk::Window +#*&XX5A#?
{ ~)wwX:;B_
public: =s0g2Zv"\
HelloWorld(); pfL2v,]g
virtual ~HelloWorld(); 2~M;L&9-
protected: eA1k)gjE
Gtk::Button m_button; E5*-;>2c
virtual void on_button_clicked(); 3V/_I<y
}; xHv|ca.E
x[PEn
HelloWorld::HelloWorld() : m_button("Hello, world!") L{2b0Zh'
{ #juGD9e
set_border_width(10); rkfQr9Vc
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 9V=<| 2
add(m_button); /[Bl
m_button.show(); }%!FMXe
} V;iL[
JlC<MQ?
HelloWorld::~HelloWorld() {} J[}gku?C;
&;ZC<