“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。 B:.rp.1
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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》。 [t'"4
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以下是用不同语言写成的Hello World程序的几个例子: _Ohq'ZgXm
Ada r1]e:
with Ada.Text_Io; use Ada.Text_Io; @xEQ<g
procedure Hello is J>35q'nN]F
begin T(DE^E@a
Put_Line ("Hello, world!"); 7a net
end Hello; w (1a{m?ht
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kvn6
NiU
汇编语言 470Pig>I8
DAi[3`C
x86 CPU,DOS,TASM t1S~~FLE
MODEL SMALL Qt 2hb
IDEAL ^p/mJ1/s7
STACK 100H r MlNp?{_
K%;yFEZ
DATASEG ~O6=dR
HW DB 'Hello, world!$' Is[0ri
<Vb{QOgc;
CODESEG =KLYR UW
MOV AX, @data *Q?HaG|S
MOV DS, AX dGe
MOV DX, OFFSET HW CS49M
MOV AH, 09H yk/XfwQ5
INT 21H %+~0+ev7r
MOV AX, 4C00H +L6d$+
INT 21H ?a@l.ZM*
END *VB*/^6A
\ :.p8`
b8&9pLl
x86 CPU,GNU/Linux,NASM 6s;x@g]
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). |(5=4j]
;Enter this into "hello.asm" then type: z?xd\x
;"nasm -f elf hello.asm" |1o]d$3m
;"ld hello.o -o hello"
8z"Yo7no
;"./hello" [@;Z
xs
c/RG1w
section .data ;data section declaration LJD"N#c
msg db 'Hello World!',0AH f&'md
len equ $-msg ;string length -5K/ cK
2X`M&)"X
section .text ;code section declaration Yi`.zm
global _start ;entry point (start of execution) 1Jt%I'C?
_start: mov edx,len ;string length $.Ni'U
mov ecx,msg ;string start Er)b( Kk
mov ebx,1 ;file handle: stdout uvL|T48
mov eax,4 ;sys_write 0/$sr;
int 80h ;kernel system call S%2qB;uw
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mov ebx,0 ;return value Eh+lLtZ
mov eax,1 ;sys_exit vq}V0-
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int 80h ;kernel system call J']W7!p
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E2MpMR
x86 CPU,Windows,MASM32 aH_&=/-Tz
.386 X9 R-GT
.model flat,stdcall S(pfd2^
option casemap:none F+GQ l
;Include 文件定义 <S
qbj;
include windows.inc b~}}{fm&f
include user32.inc s6I]H
includelib user32.lib <OUApp H
include kernel32.inc c1i7Rc{q
includelib kernel32.lib (c"!0v
;数据段 0Ko,S(M_
.data TR |; /yJ
szCaption db 'A MessageBox!',0 l-&f81W
szText db 'Hello,world!',0 -nW-I\d%
;代码段 i!NGX
.code :.<&Y=^
start: L@wnzt
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ag6S"IXh
invoke ExitProcess,NULL F&0rI8Nr
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> DQSv'!KFO
end start T(6S~;,Z
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AWK VaB7)r
BEGIN { print "Hello, world!" } 0pQ>V)
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p:
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BASIC bWqGypq4
传统版BASIC(例如GWBASIC): QO8/?^d
[7bY(
10 PRINT "Hello, world!" W6pS.}
20 END jV(ISD
B~^\jRd"
或在提示符输入: ^JTfRZ:a
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?"Hello, world!":END bnlL-]]9z
R~`Y6>o~9:
现代版BASIC(例如Quick BASIC): gVGq
G 6][@q
Print "Hello, world!" z#y<QH
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以下的语句在Quick BASIC中同样有效: -$7Jc=:>
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? "Hello,world!" ?F-,4Ox{/
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8)i\d`
BCPL ,"D1!0
GET "LIBHDR" X**wRF
R{T4AZ@,'
LET START () BE 6c2fqAF>i
$( F?UL0Q|u v
WRITES ("Hello, world!*N") \1tce`+
$) IflpM ]
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$1axZ~8sS
Befunge O
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"!dlrow olleH">v H:|yu
, <a'j8pw9i
^_@ Z8m/8M
m+o>`1>a
LcF0: h'
Brainfuck G^+0</Q
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< b^ v.FK46G
+++++++++++++++.>.+++.------.--------.>+.>. LE7o[<>
MFC= oKD
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C ]Y3ALQr!
#include <stdio.h> zRe0z2
+Y.As
int main(void) ;G w5gK^
{ YXmLd'F^3
printf("Hello, world!\n"); f`?|A
return 0; U8moVj8w1
} giI9-C
C4b3ZcD2
1f}Dza9
C++ Wjj'yqBO^
#include <iostream> }b1P!xb!A
*QrTZ$\C
int main() Ngg (<ZN
{ Cu0 /TeEM
std::cout << "Hello, world!" << std::endl; *{XbC\j
return 0; &)rmv
} 3 iY`kf
Z!*Wn`d-k
W{k}ogI;
C++/CLI %cBJ haR{(
int main() -1fT2e
{ aa$+(
System::Console::WriteLine("Hello, world!"); HbCM{A9
} r=s7be
Z{%h6""
|`,%%p|T%
C# (C Sharp) Zu5`-[mw
class HelloWorldApp Lw3Z^G
{ 3uN;*f
public static void Main() CA{c-kG
{ T,k`WR
System.Console.WriteLine("Hello, world!"); (;!&RZ
} yXlzImPn
} La9dFe-uu{
H=B8'N
RsY|V|<
COBOL 4O2O0\o:
IDENTIFICATION DIVISION. b8>rUGA{
PROGRAM-ID. HELLO-WORLD. Qp{{OjD
!)ee{CwNc
ENVIRONMENT DIVISION. Zsaz#z|xW
mhh8<BI
DATA DIVISION. 92XzbbLp
uQrD}%GI
PROCEDURE DIVISION. P.LMu
DISPLAY "Hello, world!". vX&Nh"0H&
STOP RUN. EFV'hMjS)
a:1-n%&F
j:rGFd
Common Lisp $
-;,O8yR
(format t "Hello world!~%") 5r@x$* >e
"(/.3`g
)|3?7?X
DOS批处理 mL ]zkD_
@echo off Fj|C+;Q.
echo "Hello, world!" 0z.Hl1
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_bu, 1EM
Eiffel s-Bpd#G>/
class HELLO_WORLD {73Z$w1%
`}"*i_0-5'
creation ;ZB[g78%R%
make Q
R;Xj3]v
feature
"Qm
make is e5C560
local }>>BKn
io:BASIC_IO V{ECDgP
do a*!wiTGf
!!io "4|D"|wI)
io.put_string("%N Hello, world!") a//<S?d$:
end -- make o[0Cv*
end -- class HELLO_WORLD b v~"_)C
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o{lR_
Erlang g7rn|<6FI
-module(hello). hr(E,TAe
-export([hello_world/0]). {|bf`
NvQN
hello_world() -> io:fwrite("Hello, World!\n"). 7vubkj&
6j+_)7.V
QVsOB$
Forth `~F=
." Hello, world!" CR iO~3rWQ
LW
8LD|@
Q!iM7C!8
Fortran TDq(%IW
WRITE(*,10) |1uyJ?%B
10 FORMAT('Hello, World!') uPQ:}zL2
STOP tU.Y$%4
END \ym3YwP4/:
by (xv0v;
uzr(gFd
HTML 8XIG<Nc
<HTML> &A)AV<=>T
<HEAD> }4b
4<Sm_h
<TITLE> Hello World! </TITLE>
^"STM'Zh
</HEAD> #`?B:
<BODY> Bf1,(^3XH
<p>Hello World!</p> Z9,-FO{#3-
</BODY> t2uX+1F
</HTML> b"DaLwKkz
n** W
)O*\}6:S
HQ9+ fP# !ywgr%
H )7j jfD\
<[Oe.0SGu
\"Jgs.
INTERCAL w+($=n~
PLEASE DO ,1 <- #13 uj;tmK>;
DO ,1 SUB #1 <- #238 ^h\& l{e
DO ,1 SUB #2 <- #112 z-ns@y(f@X
DO ,1 SUB #3 <- #112 .^
djt
DO ,1 SUB #4 <- #0 3Z/_}5%"
DO ,1 SUB #5 <- #64 7vZtEwC)n
DO ,1 SUB #6 <- #238 89hV{^
DO ,1 SUB #7 <- #26 v,]-;V~<
DO ,1 SUB #8 <- #248 |I \&r[J
DO ,1 SUB #9 <- #168 ~;$,h ET
DO ,1 SUB #10 <- #24 ^m
pWQ`R
DO ,1 SUB #11 <- #16 I(m*%>
DO ,1 SUB #12 <- #158 F/p/&9
DO ,1 SUB #13 <- #52 +guCTGD:
PLEASE READ OUT ,1 &`x1_*l
PLEASE GIVE UP Pa)'xfQ$Y6
BV;dV6`z
`4IZ4sPi
Java [h&)h+xt
public class Hello ^Mvgm3hg
{ <tUl(q+ty
public static void main(String[] args) )O+V ft
{ uvG'Kx
System.out.println("Hello, world!"); da'1H
} (}B3df
} ]?S@g'Jd0Q
fM/~k>wl
L0\~K~q
JSP i8w/a
<% ~cv322N
out.print("Hello, world!"); L`3;9rO
%> !(gMr1}w
R1C}S
(jmF7XfU
MIXAL >;Ag7Ex
TERM EQU 19 the MIX console device number \^o I3K0`
ORIG 1000 start address <#nt?Xn
START OUT MSG(TERM) output data at address MSG s,CN<`/>x
HLT halt execution x`:c0y9uG
MSG ALF "MIXAL" PQj 'D<G
ALF " HELL" XgI;2Be+&a
ALF "O WOR" 0ZM#..3sI
ALF "LD " !P8Y(i
END START end of the program "%I<yUP]U
]A&pXAM
k'8tqIUN]
Nuva lxsn(- j
<..直接输出..> O\J{4EB@.
Hello, world! mV'-1
NoOrQ m
<..或者..> O2qy[]km
6n A/LW\x
<. WhT5NE9t
// 不带换行 fK|P144
? "Hello, world!" $;pHv<
1K#%mV_
// 或者 `O0bba=:=
??#SQSU
// 带换行 9^+E$V1@
?? 'Hello, world!' D_q"|D$SB
.> Na>w~
O70#lvsM;
"F=ta
OCaml w8D6j%C
let main () = yUjkRT&h
print_endline "Hello world!";; 4L bll%[9
z3c7
+ )n}n5
Pascal ]JR2Av
program Hello; :b0|v`FU
begin =O/v]B8"
writeln('Hello, world!'); UHgW-N"
end. Q?V+
0J
]D&U}n
3bRW]mP8
Perl sd%m{P2
#!/usr/local/bin/perl xO^lE@a o
print "Hello, world!\n"; LJ6L#es2
2bOl`{x
OZ33w-X<
PHP d}y")q|F
<?php ;|`<B7xf
print("Hello, world!"); N!fjN >cw
?> R.?PD$;_M
|/ji'Bh
t3AmXx
Pike {+]tx46$
#!/usr/local/bin/pike W^7yh&@lU
int main() jgiS/oW
{ \a4X},h\
write("Hello, world!\n"); $;&l{=e2)
return 0; D|amKW7
} z9!OzGtIR
.C.b5x!
_K&Hiz/'
PL/I XG!6[o;
Test: procedure options(main); ]j!pK4
declare My_String char(20) varying initialize('Hello, world!'); mMvAA;
put skip list(My_String); %LM6=nt
end Test; L?Ys(a"k
~MP |L?my
;%Px~g
Prolog dz^b(q
goal ,!, tU7-H
write("hello,world!"). ^?wR{q"8
M.xZU\'ty
h$}PQ
Python u0]u"T&N!
#!/usr/local/bin/python EDuH+/:n
print "Hello, world!" 8#\|Y~P
`!spi=f
!^8X71W|
REXX AusjN-IL
say "Hello, world!" 93Zij<bH?e
[Y~~C J
&4+|{Zx0
Ruby MV??S{^4
#!/usr/bin/ruby
WzoI0E`
print "Hello, world!\n" YQ.ci4.f
97UOH
g$jT P#%b
Scheme 4lWqQVx
(display "Hello, world!") }*U|^$FEU
(newline) I 44]W &
a5R.
\a<q
M^Y[Y@U=p
sed (需要至少一行输入) <i4]qO(0u
sed -ne '1s/.*/Hello, world!/p' BWvM~no
%)r:!R~R
4H(8BNgzV
Smalltalk g1|Pyt{
Transcript show: 'Hello, world!' /Jc{aw
qHp2;
4].o:d;`/
SNOBOL 5'eBeNxM
OUTPUT = "Hello, world!" Y,GlAr s4
END _@y uaMoW=
vanV |O
Y.) QNTh
SQL d,N6~?B
create table MESSAGE (TEXT char(15)); -(F}=o'
insert into MESSAGE (TEXT) values ('Hello, world!'); B1J,4
select TEXT from MESSAGE; yf0v,]v[
drop table MESSAGE; ;4ybkOD
l"A/6r!Dp
>\^oCbqF}~
Tcl Pj]^p{>
#!/usr/local/bin/tcl 0 K#|11r
puts "Hello, world!" C3Q #[
?gUraSFU
87[ ,.W
TScript G![d_F"e
? "Hello, world!" 4K'U}W
z/`+jIB
l^ay*H
Turing Jw@X5-(Cp
put "Hello, world!" :e=7=|@7
=oIt.`rf
?g{[U0)
UNIX-style shell T)sIV5bk
程序中的/bin/sh可改为您使用的shell yNXYS
O5vfcX4>
#!/bin/sh krFp q;
echo 'Hello, world!' |f @A-d X
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o
fMFkA(Of^
GUI &"JC8
d@g2 9rs
Delphi Be]z @E1x
program HelloWorld; JyTETf,y
uses B G\)B
Dialogs; .z_nW1id
begin |v%$Q/zp&
ShowMessage('Hello, World!'); :AFW= e@<
end. 8v2Wi.4T
Yg '(
^i#0aq2}
Nuva _g/d/{-{Q
<. ]S s63Vd
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ?m2FN<S
.> 53:u6bb;
NR(rr.
@xBb|/I
Visual Basic QxE%C
MsgBox "Hello, world!" -M6vg4gf
'或者 5)S;R,
Print "Hello, world!" yC5>k;/6#K
m`fdf>gWp
\G v\&_
Visual FoxPro faLfdUimJ
? "Hello, world!" U:$zlfV
)E=B;.FH
GYIQ[#'d7
X11 xC _3&.
用一个程序 "gI-S[
E#m^.B-}
xmessage 'Hello, world!' 8M!9gvcaO
$<Gt^3e
用C++和gtkmm 2 EB+4]MsD
"[["naa
#include <iostream> wjX0r7^@
#include <gtkmm/main.h> Om:Gun\%
#include <gtkmm/button.h> 1iR\M4?Frf
#include <gtkmm/window.h> #Qz9{1\G
using namespace std; K
~\b+
qfFa" a
class HelloWorld : public Gtk::Window LL3| U
{ fy>3#`T-
public: !$iwU3~<
HelloWorld(); w].DLoz
virtual ~HelloWorld(); kp[&SKU
c
protected: 7]L}~
Gtk::Button m_button; NPBOG1q%
virtual void on_button_clicked(); +gndW
}; Z] cFbl\ma
j/uMSE
HelloWorld::HelloWorld() : m_button("Hello, world!") DPnrzV)
{ }o
GMF~
set_border_width(10); fF/;BSq'
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ,82?kky
add(m_button); _pS)bxw
m_button.show(); iN
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} <4?(|Vh[m]
!&KE">3Qu
HelloWorld::~HelloWorld() {} YL;*%XmAG
=}0>S3a.7
void HelloWorld::on_button_clicked() \@ZD.d#
{ q,Nqv[va
cout << "Hello, world!" << endl; GZ:1bV37%
} 9~f
RYA*
9ys[xOh
WM
int main (int argc, char *argv[]) >>-{AR0
{ `o+J/nc
Gtk::Main kit(argc, argv); O'k<4'TC
HelloWorld helloworld; )u!}`UJ
Gtk::Main::run(helloworld); gY-}!9kW]
} JKYl
R^I4_ZA
]Ah<kq2sk
Java &s.-p_4w^D
import java.awt.*; r)qow.+&
import java.awt.event.*; LGRhCOP:
G
@L`[Wu
public class HelloFrame extends Frame r`0oI66B/
{ ![%:X)?
HelloFrame(String title) G8W^XD
{ :Ot5W
super(title); a!x?Apww
} <