“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。 igO,Ge8}
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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》。 M"\j7(
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以下是用不同语言写成的Hello World程序的几个例子: [))TL
Ada Ad)::9K?J
with Ada.Text_Io; use Ada.Text_Io; }!9KxwC(
procedure Hello is [X^Oxs
begin |kc#=b@l
Put_Line ("Hello, world!"); *LOUf7`
end Hello; ]
^s,
$'%.w|MJp
8<:.DFq
汇编语言 L/KiE+Y
UAEu.AT
x86 CPU,DOS,TASM COc
t d
MODEL SMALL :lE_hY
IDEAL VdOcKP.
STACK 100H hF^y4v|5
z,K;GZuP
DATASEG nJ}@9v F/
HW DB 'Hello, world!$' 4L_)@n}
o Vpq*"
CODESEG m/3,;P.6
MOV AX, @data !Ahxi);a
MOV DS, AX S ,x';"
MOV DX, OFFSET HW ]\y]8v5(
MOV AH, 09H 82iFk`)T
INT 21H -
AU{Y`j
MOV AX, 4C00H Mo5b
@
[
INT 21H 0HUylnXf0
END =^SxZ Bn
RD46@Q`
b;%t*?t
x86 CPU,GNU/Linux,NASM px*1 3"
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). VFzIBgJ3
;Enter this into "hello.asm" then type: uuxVVgWp{
;"nasm -f elf hello.asm" }8POm#
;"ld hello.o -o hello" <#RVA{
;"./hello" rOz1tY)l0d
S8Y\@C?5
section .data ;data section declaration \h_q]
msg db 'Hello World!',0AH >,E^ R `y
len equ $-msg ;string length #q h
,
yYaoA/0
section .text ;code section declaration '_^T]fr}
global _start ;entry point (start of execution) =#v? }JG
_start: mov edx,len ;string length |JP19KFx'B
mov ecx,msg ;string start z~ywFk}KGd
mov ebx,1 ;file handle: stdout JXM]tV
mov eax,4 ;sys_write DY9]$h*y
int 80h ;kernel system call Fs].Fa
N0.|Mb"?t
mov ebx,0 ;return value R(`:~@3\6
mov eax,1 ;sys_exit jj1\oyQ8
int 80h ;kernel system call 8!rdqI
pF4Z4?W
d&[RfZ`
x86 CPU,Windows,MASM32 ,wwO0,"y7
.386 Ps74SoD-
.model flat,stdcall Y}1c>5{bE
option casemap:none m3gv %h
;Include 文件定义 n{FjFlX2=
include windows.inc z
-!w/Bv@
include user32.inc ~/]]H;;^u
includelib user32.lib u0c}[BAF
include kernel32.inc ?%h$deJ
includelib kernel32.lib 2S{P(B
;数据段 NS~;{d\
.data Ic9L@2m
szCaption db 'A MessageBox!',0 kIVQ2hmv
szText db 'Hello,world!',0 pA~}_
;代码段 V}Y*Yv
.code I I+y
start: ;^5k_\
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ch8a
invoke ExitProcess,NULL @"-\e|[N
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> V0=%$tH
end start #*'Qm
A
rG}e\ziKuj
c]PTU2BB8
AWK <w{?b'/q
BEGIN { print "Hello, world!" } UX@%1W!8
kh5a >OX
#$I@V4O;#
BASIC j#1G?MF
传统版BASIC(例如GWBASIC): UqOBr2UmG
>u?.gJm ~
10 PRINT "Hello, world!" vR!+ 8sy$
20 END QQM:[1;RT
q 84*5-
或在提示符输入: mG jB{Q+
*M1GVhW(+
?"Hello, world!":END :V(LBH0
v Y0bK-
现代版BASIC(例如Quick BASIC): ~5f&<,p!
\8 `7E1d
Print "Hello, world!" >>y`ap2%V
H<(F$7Q!\
以下的语句在Quick BASIC中同样有效: 68Fl/
%S`&R5
? "Hello,world!" \c<
oVF'
Qt>K{ >9Cf
j_~KD}
BCPL 2R[v*i^S
GET "LIBHDR" /jG?PZ=m
b=,BLe\
LET START () BE mn7I# ~
$( R2,9%!iiX
WRITES ("Hello, world!*N") m+<&NDj.
$) #\0m(v
T/_u;My;
BJj'91B[d
Befunge H9mN nZ_k
"!dlrow olleH">v i]v3CY|3AI
, Q$E.G63Wl
^_@ u?=mh`
x>yqEdR=o
x+X@&S
Brainfuck r#sg5aS7O|
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< jeu'K vhe
+++++++++++++++.>.+++.------.--------.>+.>. qGk.7wf%
k=]e7~!
79T_9}M
C Uwc%'=@
#include <stdio.h> X:GRjoa
&C9IR,&
int main(void) AY AU
{ \@gV$+{9
printf("Hello, world!\n"); .xT?%xSi/
return 0; (a[BvJf
} @t%da^-HS"
.U!EA0B
p<mL%3s0
C++ \p4*Q}t
#include <iostream> .]v>LsbhF
dn(!wC]
int main() kR<sSLEb
{ f2WVg;Z
std::cout << "Hello, world!" << std::endl; aTvyzr1
return 0; JtFq/&{i
} 9q`Ewj R
QVT0.GzR
e>MtDJ5
C++/CLI 2{ F-@}=
int main() |]&3*%b@
{ LJeq{Z
System::Console::WriteLine("Hello, world!"); #{6VdWZ
} xWxHi6U(
*~PB
mdc?~?? 8
C# (C Sharp) A;co1,]gR
class HelloWorldApp -H60T,o
{ G*=HjLmZg
public static void Main() !VD$uT
{ (HAdr5
System.Console.WriteLine("Hello, world!"); ygz2bHpD~
} Zux L2W
} ;]LQ}^MP(
$bE"3/uf
EXSH{P O+
COBOL Ku[q#_7
IDENTIFICATION DIVISION. LphCx6f,X
PROGRAM-ID. HELLO-WORLD. $<-a>~^Tp
MT{1/A;`)
ENVIRONMENT DIVISION. *).
z
0?Me H#
DATA DIVISION. [J2evi?
>!fTWdD^
PROCEDURE DIVISION. B&MDn']fV/
DISPLAY "Hello, world!". W? G4>zA
STOP RUN. J_)F/S!T
!XTzsN
C6>_wl]
Common Lisp G? SPz
(format t "Hello world!~%") >)4~,-;k
(#dR\Di
.U{}N%S
DOS批处理 EZj rX>"#
@echo off 6nA9r5Ghv
echo "Hello, world!" o "r
YIN* '!N
`Am|9LOT
Eiffel t ]BG)]
class HELLO_WORLD
nS]e
ub?dfS9$_
creation KcT(/!
make q>%B @'
feature R*6TS"aL
make is / :$WOQ
local x1~AY/)v
io:BASIC_IO IR"C?
do 7^>~k}H
!!io H ezbCwsx&
io.put_string("%N Hello, world!") gPn0-)<
end -- make +=W(c8~P
end -- class HELLO_WORLD BiU>h.4=\(
_#~D{91
j:
H7uh"/A
Erlang HDhkg-QC
-module(hello). PVi;h%>Y
-export([hello_world/0]). ` 0@m,
3X Y"s"
hello_world() -> io:fwrite("Hello, World!\n"). UK6x]tE
_E9[4%f
@Ov}X]ELi
Forth 7b~uU@L`
." Hello, world!" CR m2m
;|rr
,tXI*R
-medD G
Fortran `{ Ox=+]M
WRITE(*,10) c{kpgN
10 FORMAT('Hello, World!') LTf)`SN %'
STOP <mJ8~
END 0=+feB1T
z$QoMq]
&am<_Tn*3
HTML fx>QP?Z
<HTML> 1TEKq#t;y
<HEAD> }se3y
<TITLE> Hello World! </TITLE> |7K>`
</HEAD> wKJ|;o4;L
<BODY> _ow7E\70
<p>Hello World!</p> \E c*Gq?.
</BODY> n:a~=^IV
</HTML> MHp:".1
Ho#nM_ q
zjH8S
HQ9+ D_(NLC
H d v4~CW%Td
E;H9]*x/
~|<'@B!6
INTERCAL gDJ} <^
PLEASE DO ,1 <- #13 ) M8,Tv*~
DO ,1 SUB #1 <- #238 zv"NbN
DO ,1 SUB #2 <- #112 SWtqp(h]'
DO ,1 SUB #3 <- #112 Xtz29
DO ,1 SUB #4 <- #0 mCn:{G8+
DO ,1 SUB #5 <- #64 .Tl,Ek(
DO ,1 SUB #6 <- #238 ~zZOogM<
DO ,1 SUB #7 <- #26 M]%dFQ
DO ,1 SUB #8 <- #248 { Mf-?_%
DO ,1 SUB #9 <- #168 ga,kKPL
DO ,1 SUB #10 <- #24 x;SY80D
DO ,1 SUB #11 <- #16 ~p'|A}9[/
DO ,1 SUB #12 <- #158 #t2N=3dOj
DO ,1 SUB #13 <- #52 Z molL0y
PLEASE READ OUT ,1 97HI9R
PLEASE GIVE UP ;wJe%Nw?
-~RGjx
e2fv%
Java X!{K`~DRX
public class Hello |7KWa(V5I
{ >tkz%;6
public static void main(String[] args) yFd .tQs
{ }T PyHq"
System.out.println("Hello, world!"); {\k }:)
} B&7:=t,m(
} !Mgo~h"]#
EXbZ9 o*
Txl|F\nK`
JSP ;Y8>?
<% R@uA4Al
out.print("Hello, world!"); v2r|)c,h
%> wQ/.3V[
z&c}
Qe!3ae`Z
MIXAL ?v:FGO
TERM EQU 19 the MIX console device number Z{t `f[
ORIG 1000 start address PZ#up{[o
START OUT MSG(TERM) output data at address MSG BK)<~I
HLT halt execution *Ej;}KSv
MSG ALF "MIXAL" 0nBDF79
ALF " HELL" b)#rUI|O
ALF "O WOR" g9;s3qXiG
ALF "LD " `gCJ[
END START end of the program `t9k!y!GV
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7K&Uu3m
Nuva @@-TW`G7
<..直接输出..> Cb|1Jtb
Hello, world! 2 ( I4h[
-da: j-_
<..或者..> K}
T=j+
KSS]% 66Y
<. R-<8j`[0
// 不带换行 Wt@hST
? "Hello, world!" v:Gy>&
/kw;q{>?o
// 或者 G=Lg5`3;,
.x] pJ9
// 带换行 6WIs*$T2*
?? 'Hello, world!' =z"8#_3A
.> t_16icF9U
PJ&L7
$0OOH4
OCaml &PApO{#Q
let main () = ai?N!RX%H
print_endline "Hello world!";; O#):*II`9
yJ]Va $M
x![.C,O
Pascal \
qq
program Hello; Zv@
Fr9m
begin N5`z S79W
writeln('Hello, world!'); %CnNu
end. Qv'x+GVW]
4M]l~9;A
ZNDi;6e
Perl m]}U!XT
#!/usr/local/bin/perl RL\?i~'KH
print "Hello, world!\n"; cX4]ViXSr
K1R?Qt,qDF
{_L l'S
PHP G9am}qr
<?php oD9L5c)
print("Hello, world!"); An`*![
?> 4{vEW(
y3j"vKG
NOkgG0Z
Pike .p o,.}
#!/usr/local/bin/pike k?L2LIB<
int main() Ndb7>"W
{ qP&:9eL
write("Hello, world!\n"); B/;'D7i|S
return 0; %I!2dXNFRF
} vGPsjxk&
#639N9a~
dS <*DP
PL/I d+5~^\lV
Test: procedure options(main); {,*vMQ<^
declare My_String char(20) varying initialize('Hello, world!'); 3iX\):4
put skip list(My_String); `$6~QLUf
end Test; o[WDPIG
Z
zp"CK 5
<-N2<sl
Prolog 0b
n%L~KU
goal GP %hf{
write("hello,world!"). 4$ihnb`DQN
v@M^ukk'}
Ok\X%avq
Python Q[q`)~|
#!/usr/local/bin/python T*=*$%
print "Hello, world!" U1lqg?KO
h9}*_qc&kV
mW{>
REXX W\w#}kY
say "Hello, world!" 4*E5@{D
fn5-Tnsq*
%.$7-+:7A
Ruby t&[<Dl/L
#!/usr/bin/ruby >nih:5J,ja
print "Hello, world!\n" 9^8OIv?m8
)i[Vq|n
-TG ="U
Scheme b8YdONdy
(display "Hello, world!") pz)>y&_o
(newline) <m1v+cnqo
-MTYtw(
Kr|.I2?"
sed (需要至少一行输入) ^[Ka+E^Q
sed -ne '1s/.*/Hello, world!/p' O&|<2Qr
-<5{wQE;|
GQCdB>
Smalltalk Z(Y:
Transcript show: 'Hello, world!' d(ypFd9z
E!mv}
y35~bz^2
SNOBOL a@qc?
OUTPUT = "Hello, world!" >{:hadUH
END !3mt<i]a"
qnj'*]ysBC
|rZMcl/
SQL LfFXYX^
create table MESSAGE (TEXT char(15)); $YcB=l
insert into MESSAGE (TEXT) values ('Hello, world!'); w(
XZSE
select TEXT from MESSAGE; SUUN_w~
drop table MESSAGE; 9:VUtx#}2
0('ec60u
S 593wfc
Tcl g; ]'
#!/usr/local/bin/tcl PRTjXq6)5
puts "Hello, world!" 324XoMO
&g^*ep~|#
<.gDg?'3
TScript p:Lmf8EI
? "Hello, world!" \#I$H9O
7dACbqba
+)e|>
Turing y;8&J{dd
put "Hello, world!" N1Ag.
6b'.WB]-
<"P-7/j3j
UNIX-style shell }$L63;/H
程序中的/bin/sh可改为您使用的shell :Ez,GA k
$#u'XyA
#!/bin/sh ,bdjk(
echo 'Hello, world!' &s(&B>M
tLfhW1"
Cgh84
2%
GUI NE8W--Cg|
tB,(12@W
Delphi sTlel&
program HelloWorld; !@8i(!xb
uses (A6~mi r!
Dialogs; T:Klr=&V
begin IY#:v%U
ShowMessage('Hello, World!'); 9N}\>L)_
end. 5Q"w{ n
{o)pwM"@(
^9q#,6
Nuva g;8 wP5i
<. _J W|3q
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ~S\L(B(
.> %|D)%|Z
jj2\;b:a0
*$NZi*z3
Visual Basic xV5UaD<
MsgBox "Hello, world!" ~:bdS 4w
'或者 'Uf?-t*LT@
Print "Hello, world!" 6xJffl
\?^2}K/
Z}dK6h5+'
Visual FoxPro /]xa}{^B
? "Hello, world!" )XK\[tL
NSB6 2
Kh(`6 f
X11 #[lhem] IC
用一个程序 G!r)N0?_f
&R_7]f+%)
xmessage 'Hello, world!' Q]xkDr?
\BXzmok
用C++和gtkmm 2 +C{-s
"/i$_vl
#include <iostream> - Fbp!*.
u
#include <gtkmm/main.h> YoKyiO!
#include <gtkmm/button.h> +)j ll#}?
#include <gtkmm/window.h> _q27
3QG/"
using namespace std; chE!,gik
hb5K"9Y
class HelloWorld : public Gtk::Window ;J 5z
{ x^f)I|t
public: #lP8/-s^
HelloWorld(); ZLv/otf:|"
virtual ~HelloWorld(); vv @m{,7#Y
protected: .="XvVdkp
Gtk::Button m_button; fq6%@M~
virtual void on_button_clicked(); x 6`!
}; "+"=iwEAz
+&`W\?.~
HelloWorld::HelloWorld() : m_button("Hello, world!") !=,4tg`
{ "S%t\
set_border_width(10); EX`P(=zD
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); EbQLMLD%
add(m_button); `S@TiD*
m_button.show(); )O~[4xV~
} .z`70ot?
s3Vb2C*
HelloWorld::~HelloWorld() {} mUh]`/MK$
Mn.,?IF`K
void HelloWorld::on_button_clicked() (hzN(Dh
{ ump~)?_B
cout << "Hello, world!" << endl; MePD:;mm^
} Nujnm$!,Q
((k"*f2%
int main (int argc, char *argv[]) c~Ka) dF|
{ 7w/IHM L
Gtk::Main kit(argc, argv); #dA$k+3
HelloWorld helloworld; pSw/QO9
Gtk::Main::run(helloworld); 7C{ yNX#
} *Y m?gCig
Dsg>~J'
3yZmW$E.
Java d,"LZ>hNY*
import java.awt.*; yp.K-
import java.awt.event.*; `Z?wj@H1`
;<AcW.jx
public class HelloFrame extends Frame EiW|+@1
{ R2~Tr$:
HelloFrame(String title) +T+@g8S
{ h4?x_"V"
super(title); FRBu8WW0L
} n{;j
public void paint(Graphics g) )u)=@@k21
{ &7aWVKon
super.paint(g); x%G3L\5
java.awt.Insets ins = this.getInsets(); L[G O6l
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); ??rS h Mu
} o%$.8)B9F
public static void main(String args []) 9)q3cjP{<
{ Wy}I"q[~So
HelloFrame fr = new HelloFrame("Hello"); QU|_
r2LM
a:h<M^n049
fr.addWindowListener( |"3<\$[
new WindowAdapter() 7;"0:eX
{ wHc
my
public void windowClosing(WindowEvent e) HGDrH
{ l90mM'[
System.exit( 0 ); (jgk !
6
} Ej(Jj\
} :HkBP90o
); +&Ld`d!n
fr.setResizable(true); %@/^UE:
fr.setSize(500, 100); J-F".6i5
fr.setVisible(true); G 6sK3K
} f!Q\M1t)
} T~TP
yB*,)x0
@
FK|O^->B
Java Applet {4 Of.
Java Applet用于HTML文件。 Hcq.Lq;2:
'rD6MY
HTML代码: Mqf Ns<2
P3$eomX'
<HTML> <B"sp r&1
<HEAD> (q>
TKM
<TITLE>Hello World</TITLE> /0h
*(nL
</HEAD> /Rp]"S
vt
<BODY> C|(A/b
J3K=z
HelloWorld Program says: c?p^!zG
g,ZA\R~
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> yBIlwN`kB
</APPLET> Y?T{>"_W
`BPTcL<W
</BODY> %`vzQt`>
</HTML> _]Hna <Ly
uy'ghF
Java代码: L[` l80
s[1ao"sZ^
import java.applet.*; lo1Ui`V
import java.awt.*; ]rmBM
5\- uo
public class HelloWorld extends Applet 5jdZC(q5a
{ qtGJJ#^,
public void paint(Graphics g) .1x04Np!
{ ^rkKE
dd
g.drawString("Hello, world!", 100, 50); FqKJids-
} ;t`
?|
} EP;/[O
!QUY (
j=_rUc'Me
java script K~x,so
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。 T5BZD
+Ta
G7-BeA8
<script language="java script"> I$Nh|eM
function helloWorld() o_b[ *
{ B~Q-V&@o
alert("Hello World"); 5sD,gZ7
} fn#8=TIDf
</script> [\uR3$j#
R;& >PFmq
<a href="java script:this.location()" F /b`[
onclick="java script:helloWorld();">Hello World Example</a> .b:!qUE^
l{3B}_,
@u3`lhUcT
PostScript <3YZ0f f>
PostScript是一种专门用来创建图像的语言,常用于打印机。
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&4'<