“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。 Liz6ob
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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》。 L>R!A3G1
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以下是用不同语言写成的Hello World程序的几个例子: JY,l#?lM{
Ada ,R9f;BR
with Ada.Text_Io; use Ada.Text_Io; @_tA"E
procedure Hello is D4x'
begin |SJ%
_#=i
Put_Line ("Hello, world!"); zqE8PbU0M;
end Hello; YM4U.! 4o
%y^Kw
})=c:h&
汇编语言 s-YV_
_o=`-iy9
x86 CPU,DOS,TASM \2LA%ZU
MODEL SMALL ^!s}2GcS`
IDEAL daokiU+l2
STACK 100H ? _h#>
FL_ arhrqD
DATASEG <3]/ms
HW DB 'Hello, world!$' ,:Y=,[ n
=S?-=jPtg
CODESEG u
BW
MOV AX, @data Ml_:Q]kl^
MOV DS, AX P^{`d_[K%
MOV DX, OFFSET HW ^SL}wC x
MOV AH, 09H (UiH3Q9C]%
INT 21H g5TLX&Bd
MOV AX, 4C00H d T-O8
INT 21H 6`PGV+3j
END {10+(Vl
Y&!McM!Jw
5'}!v
x86 CPU,GNU/Linux,NASM F@*r%[S/
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ?wiq
3f 6
;Enter this into "hello.asm" then type: jzOMjz~:)
;"nasm -f elf hello.asm" *~aI>7H
;"ld hello.o -o hello" CI]U)@\U
;"./hello" AXv3jH,HF
7*8nUq
section .data ;data section declaration j2&OYg
msg db 'Hello World!',0AH :r|P?;t(
len equ $-msg ;string length p`V9+CA
j?` D\LZhf
section .text ;code section declaration ?9.? w-Q'
global _start ;entry point (start of execution) @X / =.
_start: mov edx,len ;string length fJN9+l
mov ecx,msg ;string start 7}HA_@[
mov ebx,1 ;file handle: stdout mjJlXA
mov eax,4 ;sys_write SEn8t"n
int 80h ;kernel system call <PA$hTYM
pmXWI`s
mov ebx,0 ;return value |r*1.V(
mov eax,1 ;sys_exit hFF&(t2{^
int 80h ;kernel system call 3n"&$q6
j1C0LP8
g&20F`.N*>
x86 CPU,Windows,MASM32 9"v ox
.386 JL*]9$o
.model flat,stdcall (6_/n&mF
option casemap:none u=N;P
;Include 文件定义 xuC6EK+
include windows.inc /? <9,7#i
include user32.inc Sf8Xj|u
includelib user32.lib iO#xIl<
include kernel32.inc a\.?{/
includelib kernel32.lib ="*C&wB^
;数据段 \fGYJ37
.data JSP8Lu"n
szCaption db 'A MessageBox!',0 >L3p qK
szText db 'Hello,world!',0 (#>5j7i8#
;代码段 mi3q1npb7[
.code 1JY90l$ME
start: -cS4B//IK8
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK J!qEj{
invoke ExitProcess,NULL @o.i2iG
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ?q8g<-?
end start _-nN(
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?|
/]UNN~(
AWK kUBHK"}K
BEGIN { print "Hello, world!" } LA(JA
8IcQpn#
e5y`CXX
BASIC Kd21:|!t^
传统版BASIC(例如GWBASIC): -CNv=vj 3
S 2` ;7
10 PRINT "Hello, world!" 7
@Qlp$[F
20 END Nr7.BDA
l`G:@}P>G
或在提示符输入: G&B}jj
p_y*-,W
(
?"Hello, world!":END `9)2nkJk'z
lP
&%5y;
现代版BASIC(例如Quick BASIC): Hw3E S
, 0ja _
Print "Hello, world!" d:ajD
uy28=BE
以下的语句在Quick BASIC中同样有效: o=5uM
w6Ny>(T/
? "Hello,world!" 0L-g'^nn
k3eN;3#&
|iThgq_\z
BCPL f\_Q+!^
GET "LIBHDR" y(g
Otg
`
R-np_
LET START () BE Rla*hc~
$( `t"Kq+
WRITES ("Hello, world!*N") X'p%$HsMG
$) [aUT #
T7X2$ '
$G.|5sEk
Befunge U9%nku4
"!dlrow olleH">v )O'<jwp$
, f;6d/?= ~
^_@ yL,B\YCf8
1Vvx@1
Vi~+C@96
Brainfuck D*b|(Oi
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Y&%0 eI!
+++++++++++++++.>.+++.------.--------.>+.>. UYLI>XSd
EnAw8Gm*
qWK7K%-$E
C a];i4lt(c
#include <stdio.h> ,RH986,6V
7i\[Q8f
int main(void) 5Wjp_^!e
{ uU"s50m
printf("Hello, world!\n"); 6!m#_z8qG3
return 0; p{GDW_
} LB0=V0|
<T9m.:l
7]53GGNO
C++ |bUmkw
#include <iostream> z<XS"4l?W
g#NUo/
int main() nr6U>
KR^
{ eHIC'b.
std::cout << "Hello, world!" << std::endl; <<6#Uz.1
return 0; @1X1E 2:
} [#H8Mb+7
D]y.!D{l2
q|\Cp
C++/CLI [X\2U4
int main() 6n g9 o6
{
X:bgY
System::Console::WriteLine("Hello, world!"); yFv3>\
} =-Tetp
.v!e=i}.
X ^)5O>>|t
C# (C Sharp) ,bg#pG!x Q
class HelloWorldApp oZw#Nd
{ -': tpJk
public static void Main() QJ'C?hn
{ -hfY:W`Dz
System.Console.WriteLine("Hello, world!"); u{^Kyo#v
} o^J&c_U\3'
} {%dQV#'c
}3e+D
\6L=^q=
COBOL P40eK0e6
IDENTIFICATION DIVISION. S d -+a
PROGRAM-ID. HELLO-WORLD. j$Co-b1
p `Z7VG
ENVIRONMENT DIVISION. %&NK|M+n
^hJ,1{o
DATA DIVISION. efm<bJB2
ppS`zqq $
PROCEDURE DIVISION. J(GLPC O$K
DISPLAY "Hello, world!". l1-FL-1
STOP RUN. s"Wdbw(O '
jiDYPYx;I
B(U`Zd
Common Lisp /vKDlCH*
(format t "Hello world!~%") sIe(;%[`
'-qc\6UY
':@qE\(
DOS批处理 L x&ZWF$
@echo off XFYl[?`G
echo "Hello, world!" X8TZePh
[0emOS
75ob1h"
Eiffel 4kEFbzwx
class HELLO_WORLD otx7J\4
L|Iq#QX|
creation d)HK9T|B
make FB`HwE<
feature ^TGHWCK!t
make is lw{|~m5`
local c+c^F/
io:BASIC_IO TUt)]"h<
do fAi113q!
!!io d29HEu
io.put_string("%N Hello, world!") A
|B](MW%O
end -- make u ""=9>0
end -- class HELLO_WORLD |ouk;r24V
Uw!v=n3#!
WF7RMQ51j
Erlang .[!
^L
-module(hello). |iI`p-L9
-export([hello_world/0]). %K4-V5f
iD~s,
hello_world() -> io:fwrite("Hello, World!\n"). hb{(r@[WHv
FdD'Hp+
L
$~Id
Forth lHU$A;
." Hello, world!" CR n1|%xQBU@
kW9STN
Fu$otMw%l
Fortran A
[JV*Dt
WRITE(*,10) qA42f83
10 FORMAT('Hello, World!') `:&{/|uP7
STOP YH9BJ
END '1+ Bgf
(46)v'?
bPEAG=l "-
HTML p#w,+)1!d
<HTML> "x)W3C%*S
<HEAD> $A,=z
<TITLE> Hello World! </TITLE> U+z&jdnhDR
</HEAD> R!=XMV3$PH
<BODY> 4^r}&9C~
<p>Hello World!</p> wFD.3!
</BODY> x8^Dhpr6
</HTML> 9bB~r[k
&}oDSD
H^,
sgX~4W"J
HQ9+ R OS0Q9X
H 20qT1!ju
PSE![whK
711z-
INTERCAL Ni`qU(I'|
PLEASE DO ,1 <- #13 <Aa%Uwpc
DO ,1 SUB #1 <- #238 Je'$V%{E
DO ,1 SUB #2 <- #112 KK?}`o
DO ,1 SUB #3 <- #112 n1ICW 9
DO ,1 SUB #4 <- #0 @'QB rE
DO ,1 SUB #5 <- #64 anbr3L[!
DO ,1 SUB #6 <- #238 ZO,]h9?4
DO ,1 SUB #7 <- #26 t9kgACo/M
DO ,1 SUB #8 <- #248 $_y"P
DO ,1 SUB #9 <- #168 $I'ES#8P6
DO ,1 SUB #10 <- #24 u=4Rn
DO ,1 SUB #11 <- #16 V\_
&2',t
DO ,1 SUB #12 <- #158 /#a$4 }2L
DO ,1 SUB #13 <- #52 l!b#v`
PLEASE READ OUT ,1 JkKI/5h
PLEASE GIVE UP nm)F tX|A
<K43f#%
("{'],>
Java *(rq AB0~
public class Hello SF6n06UZu
{ z)ydQw>
public static void main(String[] args) |qBo*OcO
{ ~9{.!7KPc
System.out.println("Hello, world!"); Vrnx#j-U
} (efH>oY[
} TCVJ[LbJ
4x:fOhtP
?h{ &
JSP ;RR)C@n1
<% 8WAg{lVs
out.print("Hello, world!"); M*x_1h5n
%> 'F@'4[uda
Mqq7;w@(J
OlP#|x*
MIXAL }}
IvZG&
TERM EQU 19 the MIX console device number Nz m
7E]
ORIG 1000 start address mGIS[_dcs
START OUT MSG(TERM) output data at address MSG G B15
HLT halt execution j9Lc2'
MSG ALF "MIXAL" n7S[ F3
ALF " HELL" 3V-pLs|
ALF "O WOR" J~==<?j:
ALF "LD " TY?Fs-
END START end of the program +=||c\'
g;-CAd5
H]SnM'Y
Nuva Agl[Z>Q
<..直接输出..> zEu*q7
Hello, world! 4FYws5]$
NK#f Gz*,(
<..或者..> k?_Miqr
hE>Mo$Q(
<. |[*b[O
1W
// 不带换行 B$fL);l-
? "Hello, world!" 1e}wDMU(
#{0c01JZ
// 或者 RJ0w3T]7
wqw$6"~
// 带换行 5@i/4%S
?? 'Hello, world!' %zWtPxAf
.> rwU[dqBRhc
3o z]
(`T:b1
OCaml 8tsW^y;S
let main () = I(C_}I>Wb
print_endline "Hello world!";; LNe-]3wB
!dZC-U~
d8av`m
Pascal z7NaW e
program Hello; f7mI\$CN
begin NO'-HKHj
writeln('Hello, world!'); [~x
Ql
end. Oq[tgmf
CYz]tv}g:
4/$]wK`
Perl 3^8%/5$v
#!/usr/local/bin/perl PQ1\b-I
print "Hello, world!\n"; .Zo8KwkFY
cBU>/
zIp
[N{Rd[{QTL
PHP z55P~p
<?php H1+G:TM
print("Hello, world!"); sq*sb dE
?> kFeuKSa^d
hMdsR,Iq
OD{Rh(Id
Pike ] OR]
#!/usr/local/bin/pike A07FjT5w8
int main() 9"&HxyOfX
{ z[l17+v
write("Hello, world!\n"); ;+cZS=
return 0; w
J; y4
} kZfO`BVL
_Nlx)Y R
gzxLHPiw
PL/I LvB -%@n
Test: procedure options(main); /,wG$b+
declare My_String char(20) varying initialize('Hello, world!'); >wZ!1Jq
put skip list(My_String); CJ?Lv2Td
end Test; \=1k29O
p^NYJV
UDhW Y.`'~
Prolog 5X'[{'i,
goal #k*e>d$
write("hello,world!"). fZ$8PMZv
;4%^4<+3
Sa6}xe."M,
Python jrG@
+" }
#!/usr/local/bin/python IX$ $pdQ
print "Hello, world!" 't2"CPZ
klv ]+F&[
!'MZeiLP
REXX Vc}m_T]O
say "Hello, world!" CKyX Z
)~s(7
4`}
os"o0?
Ruby Busxg?=
#!/usr/bin/ruby 5)nm6sf
print "Hello, world!\n" 1:XT r
$yBU
,lu}
+!CG'qyN>
Scheme c[f
(display "Hello, world!") ^|(F|Z
(newline) XzkC ]e'
slXk <
nz~3o
sed (需要至少一行输入) a8Nl'
f*0
sed -ne '1s/.*/Hello, world!/p' eE+zL~CE
4cl}ouG
]&jXD=a"
Smalltalk |s+y]3-_
Transcript show: 'Hello, world!' C&D!TR!K
X*/jna"*
ZU5hHah.t
SNOBOL 7jvf:#\LtL
OUTPUT = "Hello, world!" }]'Z~5T
END ,aU_bve
^3^n|T7le
"oz qfh
SQL ^g"G1,[%w
create table MESSAGE (TEXT char(15)); A7C+-N
insert into MESSAGE (TEXT) values ('Hello, world!');
T32C=7
select TEXT from MESSAGE; +' QX`
drop table MESSAGE; ez@`&cJ7
ML9ZS
@
$~75/
Tcl 'D;v>r
#!/usr/local/bin/tcl :dc>\kUIv
puts "Hello, world!" #"|</*%>
o+r?N5
r8A
TScript g:7S/L0]
? "Hello, world!" <-D>^p9
OTY9Q
Usx8
U
Turing N`h, 2!(j
put "Hello, world!"
:?S1#d_
V>>"nf,YO
,6uON@
UNIX-style shell |#^wYZO1U
程序中的/bin/sh可改为您使用的shell d,tGW
%wzDBsX
#!/bin/sh _
fJ5z
echo 'Hello, world!' 8M<q-sn4B
d="Oge8
Dp3&@M"^yY
GUI <l opk('7
P-o/ax
Delphi U-&dn%Sq
program HelloWorld; >4b:`L
uses 1qp<Fz[
Dialogs; ry)g<OA
begin >4
4A
ShowMessage('Hello, World!'); N_Q)AXr)
end. P:,'
>\6Tm
P/6$T2k_
Nuva @ qy
n[C
<. SaceIV%(
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) V3r1|{Z(
.> lI~T>Lel2
ZfsM($|a
7}>Zq`]~
Visual Basic j}t"M|`
MsgBox "Hello, world!" 33IJbg
'或者 -}#=L@
Print "Hello, world!" Jh`Pq,B:
dCc"Qr[k
T5H[~b|9-
Visual FoxPro T;!: A
? "Hello, world!" BPs|qb-
jGy%O3/
R-QSv$
X11 V{4=,Ax
用一个程序 I8~ .Vu2
g^ .g9"
xmessage 'Hello, world!' @`t#Bi9
gCfAy=-,V
用C++和gtkmm 2 m.!n|_}]
mUSrC U_}
#include <iostream> 9j<qi\SSI
#include <gtkmm/main.h> r&!Ebe-
#include <gtkmm/button.h> %:Mi6sR|
#include <gtkmm/window.h> T-,T)R`R
using namespace std; +U9m
b* (~8JxZ
class HelloWorld : public Gtk::Window nYy%=B|>
{ f4[fXP;A
public: @N+ }cej
HelloWorld(); NN>E1d=
virtual ~HelloWorld(); "}ibH{$lM
protected: B}S!l>.z
Gtk::Button m_button; K!~j}z*
virtual void on_button_clicked(); }\
kLh(
}; )bqSM&SO
ufl[sj%^|
HelloWorld::HelloWorld() : m_button("Hello, world!") =c/jS
{ ZW+M<G
set_border_width(10); {o>51fXc)
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); b^s978qn#
add(m_button); fL$U%I3
m_button.show(); 8`g@
)]Iy
} *ay&&S*
&k53*Wo
HelloWorld::~HelloWorld() {} Bk)E]Fk|
}SD*@w
void HelloWorld::on_button_clicked() }Br=eaY
{ hSkI]%
cout << "Hello, world!" << endl; /Uxp5 b h
} y0}3s)lKv
fhwJ
int main (int argc, char *argv[]) D@W[Nd5MJ
{ M$J{clr
Gtk::Main kit(argc, argv); 2><=U7~
HelloWorld helloworld; /6fa
7;
Gtk::Main::run(helloworld); X%X`o%AqC
} =:fN
U~3uu&/r
1PGY/c
Java 5z/*/F=X
import java.awt.*; ,i]X^z5!
import java.awt.event.*; mM#[XKOC<
6&9}M Oc
public class HelloFrame extends Frame [d dKC)tA
{ uy'I#^Bt
HelloFrame(String title) ;r8<
Ed
{ OKo)p`BX
super(title); QH>e_
} #!.26RM:P
public void paint(Graphics g) wqnrN6$jf
{
eeMeV>
super.paint(g); sOVbz2\yb
java.awt.Insets ins = this.getInsets(); ;15j\{r
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); ]`+J!G,
} U3t$h
public static void main(String args []) ] S0tK
{ ioW&0?,Ym
HelloFrame fr = new HelloFrame("Hello"); Z:(Zy
=# /BCL7
fr.addWindowListener( 0%(.$c>:f
new WindowAdapter() Ot<vn34mt:
{ y/vGt_^;3<
public void windowClosing(WindowEvent e) xcHuH-}
{ 3aY^6&
System.exit( 0 ); L$zB^lSM
} 1XppC[))
} e0Jz|?d=
); `*Ju0)g1
fr.setResizable(true); 1Zo"Xb
fr.setSize(500, 100); 8pXului
fr.setVisible(true); 9cqq"-$G`
} wH0m^?a!3
} '}5Yc,
[`n)2}
k
w;p~|!
Java Applet alp}p
Java Applet用于HTML文件。 P:OI]x4
q?##S'
HTML代码: $n#NUPzG+
^]zC~LfG
<HTML> ']&rPvkL
<HEAD> Cs2F/M'
<TITLE>Hello World</TITLE> dbsD\\,2%N
</HEAD> <|=^[' vi
<BODY> Y=5}u&\
vT=?UTq
HelloWorld Program says: k.n-JS
}lQ`ka
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> 4\Q
pS
</APPLET> Dg=!d)\
u*6Y>_iA
</BODY> umuE5MKY<
</HTML> $! R]!s
%AJTU3=0
Java代码: !Y,*Zc$R
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